Hello, syzbot found the following issue on: HEAD commit: f3a2439f20d9 Merge tag 'rproc-v6.3' of git://git.kernel.or.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17228a74c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=dd442ddf29eaca0c dashboard link: https://syzkaller.appspot.com/bug?extid=527641d191abe35993c1 compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/9dbed9360199/disk-f3a2439f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d9708601442a/vmlinux-f3a2439f.xz kernel image: https://storage.googleapis.com/syzbot-assets/177fdbdbd4ea/bzImage-f3a2439f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+527641d191abe35993c1@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6839 at fs/nilfs2/btree.c:2071 nilfs_btree_propagate+0xc72/0xde0 Modules linked in: CPU: 1 PID: 6839 Comm: syz-executor.4 Not tainted 6.2.0-syzkaller-12485-gf3a2439f20d9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 RIP: 0010:nilfs_btree_propagate+0xc72/0xde0 fs/nilfs2/btree.c:2071 Code: 00 48 8b 44 24 08 49 8d 74 05 58 e8 c8 64 ff ff 48 8b 6c 24 10 43 80 3c 27 00 0f 85 1a fe ff ff e9 1d fe ff ff e8 3e 6c 39 fe <0f> 0b e9 f2 f3 ff ff e8 32 6c 39 fe 48 8b 1c 24 48 81 c3 d0 00 00 RSP: 0018:ffffc90006196ea0 EFLAGS: 00010283 RAX: ffffffff83537a82 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90005929000 RSI: 000000000001e5d4 RDI: 000000000001e5d5 RBP: ffffffff8b4581a8 R08: ffffffff83536e6c R09: ffffed100e936523 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff1100e93652b R14: 1ffff1100e936522 R15: ffff8880749b2910 FS: 00007f851cc6a700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31f2b000 CR3: 0000000028470000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> nilfs_bmap_propagate+0x71/0x120 fs/nilfs2/bmap.c:337 nilfs_collect_file_data+0x4d/0xc0 fs/nilfs2/segment.c:568 nilfs_segctor_apply_buffers+0x180/0x330 fs/nilfs2/segment.c:1020 nilfs_segctor_scan_file_dsync fs/nilfs2/segment.c:1109 [inline] nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1263 [inline] nilfs_segctor_collect fs/nilfs2/segment.c:1505 [inline] nilfs_segctor_do_construct+0x175e/0x6f70 fs/nilfs2/segment.c:2047 nilfs_construct_dsync_segment+0x5c4/0x6c0 fs/nilfs2/segment.c:2312 nilfs_sync_file+0xbc/0x260 fs/nilfs2/file.c:32 generic_write_sync include/linux/fs.h:2452 [inline] generic_file_write_iter+0x2a1/0x310 mm/filemap.c:4090 do_iter_write+0x6ea/0xc50 fs/read_write.c:861 iter_file_splice_write+0x843/0xfe0 fs/splice.c:778 do_splice_from fs/splice.c:856 [inline] direct_splice_actor+0xe7/0x1c0 fs/splice.c:1023 splice_direct_to_actor+0x4c4/0xbd0 fs/splice.c:978 do_splice_direct+0x283/0x3d0 fs/splice.c:1066 do_sendfile+0x620/0xff0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f851be8c0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f851cc6a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f851bfac050 RCX: 00007f851be8c0f9 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 RBP: 00007f851bee7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000f03b2400 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdf954162f R14: 00007f851cc6a300 R15: 0000000000022000 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
