https://bugzilla.kernel.org/show_bug.cgi?id=200347 Bug ID: 200347 Summary: nullptr deference in get_empty_nodes() when writing file on a reiserfs filesystem Product: File System Version: 2.5 Kernel Version: 4.18 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ReiserFS Assignee: reiserfs-devel@xxxxxxxxxxxxxxx Reporter: wen.xu@xxxxxxxxxx Regression: No Created attachment 277001 --> https://bugzilla.kernel.org/attachment.cgi?id=277001&action=edit The (compressed) crafted image which causes crash - Reproduce # mkdir mnt # mount -t reiserfs -o acl,user_xattr 52.img mnt # gcc -o poc poc.c # ./poc ./mnt - POC (poc.c) [ 373.616011] REISERFS (device loop0): found reiserfs format "3.6" with standard journal [ 373.616122] REISERFS (device loop0): using ordered data mode [ 373.616128] reiserfs: using flush barriers [ 373.617104] REISERFS (device loop0): journal params: device loop0, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 373.619198] REISERFS (device loop0): checking transaction log (loop0) [ 374.510364] REISERFS (device loop0): Using r5 hash to sort names [ 384.520079] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520121] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520150] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520174] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520196] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520219] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520242] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520264] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520294] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520353] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520377] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520400] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520422] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520445] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520467] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520490] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520512] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520546] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520568] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520626] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520649] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520672] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520694] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520728] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520752] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520780] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520803] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520825] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520848] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520870] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520923] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520947] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.520988] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521017] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521039] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521297] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521352] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521376] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521400] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521423] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521446] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521513] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521537] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521559] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521582] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521604] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521627] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521666] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521690] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521718] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521740] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521763] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521812] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521835] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521858] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521880] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521902] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521930] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521952] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521975] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.521997] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522020] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522052] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522107] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522131] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522158] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522181] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522203] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522225] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522248] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522270] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522303] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522327] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522382] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522405] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522428] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522450] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522478] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522500] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522522] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522544] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522572] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522594] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522617] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522671] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522695] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522717] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522740] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522763] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522795] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522820] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522842] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522870] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522893] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522915] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522973] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.522997] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523025] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523047] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523070] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523092] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523114] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523137] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523159] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523181] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523209] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523262] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523290] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523312] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523335] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523358] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523380] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523402] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523430] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523452] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523474] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523501] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523552] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523575] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523601] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523623] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523664] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523864] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523871] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523877] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523884] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523890] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523896] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523916] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523923] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523929] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523935] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523941] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523948] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523954] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523960] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523969] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523975] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523981] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523987] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523993] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.523999] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.524133] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528181] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528191] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528198] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528204] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528216] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528222] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528228] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528239] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528249] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528255] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528261] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528267] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528273] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528282] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528288] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528297] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528303] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528308] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528317] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528323] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528328] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528334] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528340] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528348] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528354] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528360] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528365] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528375] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528383] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528388] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528394] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528403] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528409] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528415] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528420] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528426] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528435] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528440] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528446] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528458] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528463] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528469] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528475] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528480] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528486] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528492] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528501] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528509] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528515] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528521] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528526] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528535] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528541] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528546] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528560] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528574] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528580] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528585] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528592] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528598] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528603] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528609] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528615] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528626] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528632] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528638] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528643] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528649] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528655] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528664] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528669] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528678] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528684] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528693] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528698] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528704] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528709] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528715] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528723] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528732] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528742] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528750] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528759] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528764] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528770] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528776] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528784] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528793] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528799] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528804] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528810] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528819] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528825] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528830] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528836] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528844] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528850] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528856] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528861] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528870] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528876] REISERFS warning (device loop0): sh-2029: %s: bitmap block (#%u) reading failed reiserfs_read_bitmap_block: reiserfs_read_bitmap_block [ 384.528925] ================================================================== [ 384.530665] BUG: KASAN: null-ptr-deref in get_empty_nodes+0x2e8/0x3b0 [ 384.531991] Read of size 8 at addr 0000000000000000 by task a.out/1367 [ 384.533788] CPU: 1 PID: 1367 Comm: a.out Not tainted 4.18.0-rc1+ #8 [ 384.533798] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014 [ 384.533807] Call Trace: [ 384.533851] dump_stack+0x7b/0xb5 [ 384.533879] kasan_report+0x10c/0x390 [ 384.533888] ? get_empty_nodes+0x2e8/0x3b0 [ 384.533901] __asan_load8+0x54/0x90 [ 384.533906] get_empty_nodes+0x2e8/0x3b0 [ 384.533912] ? is_left_neighbor_in_cache+0x160/0x160 [ 384.533918] ? set_parameters.part.6+0x110/0x110 [ 384.533926] ? get_neighbors+0x20e/0x450 [ 384.533931] fix_nodes+0x18ad/0x35c0 [ 384.533939] ? create_virtual_node+0x9d0/0x9d0 [ 384.533943] ? memset+0x31/0x40 [ 384.533953] reiserfs_paste_into_item+0x261/0x3b0 [ 384.533963] ? reiserfs_delete_object+0xd0/0xd0 [ 384.533979] ? _raw_spin_lock_irqsave+0x2a/0x60 [ 384.533994] ? __kmalloc+0x11f/0x240 [ 384.533998] ? reiserfs_get_block+0x89d/0x1c40 [ 384.534003] reiserfs_get_block+0x9a6/0x1c40 [ 384.534013] ? reiserfs_commit_write+0x390/0x390 [ 384.534027] ? __mod_node_page_state+0x27/0xa0 [ 384.534032] ? new_slab+0x450/0x660 [ 384.534042] ? kasan_unpoison_shadow+0x36/0x50 [ 384.534046] ? kasan_kmalloc+0xad/0xe0 [ 384.534057] ? memcg_kmem_put_cache+0x1b/0xa0 [ 384.534062] ? kmem_cache_alloc+0x17c/0x1e0 [ 384.534072] ? kasan_check_write+0x14/0x20 [ 384.534090] ? create_empty_buffers+0x17e/0x1d0 [ 384.534096] __block_write_begin_int+0x296/0x940 [ 384.534104] ? reiserfs_commit_write+0x390/0x390 [ 384.534108] ? __block_write_begin_int+0x296/0x940 [ 384.534113] ? reiserfs_commit_write+0x390/0x390 [ 384.534117] ? __breadahead+0xd0/0xd0 [ 384.534123] ? reiserfs_wait_on_write_block+0xa6/0x140 [ 384.534130] ? reiserfs_allow_writes+0x50/0x50 [ 384.534152] ? pagecache_get_page+0xca/0x2f0 [ 384.534163] ? wait_for_stable_page+0x77/0xf0 [ 384.534171] __block_write_begin+0x11/0x20 [ 384.534176] reiserfs_write_begin+0x1a5/0x380 [ 384.534188] ? timespec64_trunc+0x5c/0x90 [ 384.534195] generic_perform_write+0x192/0x320 [ 384.534202] ? __bpf_trace_filemap_set_wb_err+0x10/0x10 [ 384.534209] ? file_update_time+0x1d2/0x270 [ 384.534213] ? current_time+0x110/0x110 [ 384.534217] ? save_stack+0xb5/0xd0 [ 384.534222] __generic_file_write_iter+0x261/0x2e0 [ 384.534247] ? do_syscall_64+0x78/0x170 [ 384.534252] generic_file_write_iter+0x19d/0x2d0 [ 384.534268] __vfs_write+0x286/0x410 [ 384.534274] ? kernel_read+0xa0/0xa0 [ 384.534299] ? common_file_perm+0x11b/0x2e0 [ 384.534308] ? may_open_dev+0x50/0x50 [ 384.534313] ? apparmor_task_setrlimit+0x270/0x270 [ 384.534320] ? fsnotify+0x590/0x7d0 [ 384.534326] ? rw_verify_area+0x78/0x140 [ 384.534334] vfs_write+0xf9/0x260 [ 384.534339] ksys_write+0xb4/0x140 [ 384.534344] ? __ia32_sys_read+0x50/0x50 [ 384.534350] __x64_sys_write+0x43/0x50 [ 384.534355] do_syscall_64+0x78/0x170 [ 384.534360] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 384.534378] RIP: 0033:0x7ffa23bd92c0 [ 384.534379] Code: 73 01 c3 48 8b 0d d8 cb 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 24 2d 00 00 75 10 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 fe dd 01 00 48 89 04 24 [ 384.534441] RSP: 002b:00007ffe40b5db68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 384.534454] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ffa23bd92c0 [ 384.534457] RDX: 0000000000008000 RSI: 00000000006010a0 RDI: 0000000000000003 [ 384.534463] RBP: 00007ffe40b5dba0 R08: 0000000001f6c010 R09: 0000000000000000 [ 384.534466] R10: 000000000000086f R11: 0000000000000246 R12: 0000000000400600 [ 384.534469] R13: 00007ffe40b5dca0 R14: 0000000000000000 R15: 0000000000000000 [ 384.534473] ================================================================== [ 384.535960] Disabling lock debugging due to kernel taint [ 384.536079] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [ 384.537827] PGD 80000001deb2b067 P4D 80000001deb2b067 PUD 1efd3d067 PMD 0 [ 384.539229] Oops: 0000 [#1] SMP KASAN PTI [ 384.540077] CPU: 1 PID: 1367 Comm: a.out Tainted: G B 4.18.0-rc1+ #8 [ 384.541643] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014 [ 384.543574] RIP: 0010:get_empty_nodes+0x2e8/0x3b0 [ 384.544540] Code: 8b 7d 18 e8 0a 49 eb ff 49 8b bd d0 00 00 00 44 89 fa b9 08 00 00 00 4c 89 f6 e8 b3 ac f5 ff 49 89 c7 48 89 c7 e8 e8 48 eb ff <49> 8b 17 f7 c2 00 00 08 00 75 06 f0 41 80 4f 02 08 48 8b bd f0 fe [ 384.548390] RSP: 0018:ffff8801dea2ee70 EFLAGS: 00010296 [ 384.549468] RAX: 0000000000000000 RBX: ffff8801dea2f218 RCX: 0000000000000000 [ 384.550916] RDX: 0000000000000000 RSI: 0000000000000297 RDI: 0000000000000297 [ 384.552372] RBP: ffff8801dea2efa8 R08: ffffed003ede3ebb R09: ffffed003ede3ebb [ 384.553848] R10: 0000000000000001 R11: ffffed003ede3eba R12: ffff8801dea2ef40 [ 384.555298] R13: ffff8801f3102200 R14: 00000000000054dc R15: 0000000000000000 [ 384.556753] FS: 00007ffa240c7700(0000) GS:ffff8801f6f00000(0000) knlGS:0000000000000000 [ 384.558409] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 384.559587] CR2: 0000000000000000 CR3: 00000001de076000 CR4: 00000000000006e0 [ 384.561062] Call Trace: [ 384.561589] ? is_left_neighbor_in_cache+0x160/0x160 [ 384.562614] ? set_parameters.part.6+0x110/0x110 [ 384.563569] ? get_neighbors+0x20e/0x450 [ 384.564387] fix_nodes+0x18ad/0x35c0 [ 384.565152] ? create_virtual_node+0x9d0/0x9d0 [ 384.566070] ? memset+0x31/0x40 [ 384.566729] reiserfs_paste_into_item+0x261/0x3b0 [ 384.567701] ? reiserfs_delete_object+0xd0/0xd0 [ 384.568637] ? _raw_spin_lock_irqsave+0x2a/0x60 [ 384.569590] ? __kmalloc+0x11f/0x240 [ 384.570331] ? reiserfs_get_block+0x89d/0x1c40 [ 384.571246] reiserfs_get_block+0x9a6/0x1c40 [ 384.572129] ? reiserfs_commit_write+0x390/0x390 [ 384.573091] ? __mod_node_page_state+0x27/0xa0 [ 384.574007] ? new_slab+0x450/0x660 [ 384.574736] ? kasan_unpoison_shadow+0x36/0x50 [ 384.575649] ? kasan_kmalloc+0xad/0xe0 [ 384.576425] ? memcg_kmem_put_cache+0x1b/0xa0 [ 384.577333] ? kmem_cache_alloc+0x17c/0x1e0 [ 384.578204] ? kasan_check_write+0x14/0x20 [ 384.579052] ? create_empty_buffers+0x17e/0x1d0 [ 384.579985] __block_write_begin_int+0x296/0x940 [ 384.580935] ? reiserfs_commit_write+0x390/0x390 [ 384.581900] ? __block_write_begin_int+0x296/0x940 [ 384.582885] ? reiserfs_commit_write+0x390/0x390 [ 384.583833] ? __breadahead+0xd0/0xd0 [ 384.584595] ? reiserfs_wait_on_write_block+0xa6/0x140 [ 384.585661] ? reiserfs_allow_writes+0x50/0x50 [ 384.586578] ? pagecache_get_page+0xca/0x2f0 [ 384.587459] ? wait_for_stable_page+0x77/0xf0 [ 384.588357] __block_write_begin+0x11/0x20 [ 384.589211] reiserfs_write_begin+0x1a5/0x380 [ 384.590112] ? timespec64_trunc+0x5c/0x90 [ 384.590945] generic_perform_write+0x192/0x320 [ 384.591865] ? __bpf_trace_filemap_set_wb_err+0x10/0x10 [ 384.592936] ? file_update_time+0x1d2/0x270 [ 384.593809] ? current_time+0x110/0x110 [ 384.594600] ? save_stack+0xb5/0xd0 [ 384.595323] __generic_file_write_iter+0x261/0x2e0 [ 384.596304] ? do_syscall_64+0x78/0x170 [ 384.597108] generic_file_write_iter+0x19d/0x2d0 [ 384.598065] __vfs_write+0x286/0x410 [ 384.598812] ? kernel_read+0xa0/0xa0 [ 384.599556] ? common_file_perm+0x11b/0x2e0 [ 384.600421] ? may_open_dev+0x50/0x50 [ 384.601192] ? apparmor_task_setrlimit+0x270/0x270 [ 384.602179] ? fsnotify+0x590/0x7d0 [ 384.602908] ? rw_verify_area+0x78/0x140 [ 384.603723] vfs_write+0xf9/0x260 [ 384.604418] ksys_write+0xb4/0x140 [ 384.605140] ? __ia32_sys_read+0x50/0x50 [ 384.605958] __x64_sys_write+0x43/0x50 [ 384.606738] do_syscall_64+0x78/0x170 [ 384.607499] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 384.608532] RIP: 0033:0x7ffa23bd92c0 [ 384.609277] Code: 73 01 c3 48 8b 0d d8 cb 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 24 2d 00 00 75 10 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 fe dd 01 00 48 89 04 24 [ 384.613112] RSP: 002b:00007ffe40b5db68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 384.614650] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ffa23bd92c0 [ 384.616104] RDX: 0000000000008000 RSI: 00000000006010a0 RDI: 0000000000000003 [ 384.631918] RBP: 00007ffe40b5dba0 R08: 0000000001f6c010 R09: 0000000000000000 [ 384.633400] R10: 000000000000086f R11: 0000000000000246 R12: 0000000000400600 [ 384.634864] R13: 00007ffe40b5dca0 R14: 0000000000000000 R15: 0000000000000000 [ 384.636336] Modules linked in: snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_timer snd mac_hid i2c_piix4 soundcore ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx raid1 raid0 multipath linear 8139too qxl drm_kms_helper crct10dif_pclmul syscopyarea sysfillrect sysimgblt fb_sys_fops ttm crc32_pclmul aesni_intel drm aes_x86_64 crypto_simd cryptd glue_helper 8139cp mii pata_acpi floppy [ 384.646392] CR2: 0000000000000000 [ 384.647142] ---[ end trace 2e85051acb5f6dc1 ]--- [ 384.648139] RIP: 0010:get_empty_nodes+0x2e8/0x3b0 [ 384.649216] Code: 8b 7d 18 e8 0a 49 eb ff 49 8b bd d0 00 00 00 44 89 fa b9 08 00 00 00 4c 89 f6 e8 b3 ac f5 ff 49 89 c7 48 89 c7 e8 e8 48 eb ff <49> 8b 17 f7 c2 00 00 08 00 75 06 f0 41 80 4f 02 08 48 8b bd f0 fe [ 384.653253] RSP: 0018:ffff8801dea2ee70 EFLAGS: 00010296 [ 384.654331] RAX: 0000000000000000 RBX: ffff8801dea2f218 RCX: 0000000000000000 [ 384.655782] RDX: 0000000000000000 RSI: 0000000000000297 RDI: 0000000000000297 [ 384.657279] RBP: ffff8801dea2efa8 R08: ffffed003ede3ebb R09: ffffed003ede3ebb [ 384.658738] R10: 0000000000000001 R11: ffffed003ede3eba R12: ffff8801dea2ef40 [ 384.660223] R13: ffff8801f3102200 R14: 00000000000054dc R15: 0000000000000000 [ 384.661685] FS: 00007ffa240c7700(0000) GS:ffff8801f6f00000(0000) knlGS:0000000000000000 [ 384.663327] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 384.664536] CR2: 0000000000000000 CR3: 00000001de076000 CR4: 00000000000006e0 - Location https://elixir.bootlin.com/linux/v4.18-rc1/source/fs/reiserfs/fix_node.c#L903 set_buffer_journal_new(new_bh); Reported by Wen Xu (wen.xu@xxxxxxxxxx) from SSLab at Gatech. -- You are receiving this mail because: You are the assignee for the bug.-- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
