Hello, syzbot found the following issue on: HEAD commit: 92514ef226f5 Merge tag 'for-6.14-rc1-tag' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=126aa4a4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=1909f2f0d8e641ce dashboard link: https://syzkaller.appspot.com/bug?extid=6663075ddb9be85fa6e5 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14926df8580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-92514ef2.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c4d8b91f8769/vmlinux-92514ef2.xz kernel image: https://storage.googleapis.com/syzbot-assets/c24ec4365966/bzImage-92514ef2.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/efb05b29bf18/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6663075ddb9be85fa6e5@xxxxxxxxxxxxxxxxxxxxxxxxx slab radix_tree_node start ffff8880411d9600 pointer offset 24 size 576 list_del corruption. next->prev should be ffff88803f847358, but was 0000000008000105. (next=ffff8880411d9618) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:67! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5628 Comm: modprobe Not tainted 6.14.0-rc1-syzkaller-00034-g92514ef226f5 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__list_del_entry_valid_or_report+0x18c/0x190 lib/list_debug.c:65 Code: ba 56 15 fd 42 80 3c 2b 00 74 08 4c 89 e7 e8 7b 02 37 fd 49 8b 56 08 48 c7 c7 20 8f 60 8c 4c 89 fe 4c 89 f1 e8 65 10 38 fc 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f RSP: 0018:ffffc9000cdced10 EFLAGS: 00010046 RAX: 000000000000006d RBX: 1ffff1100823b2c4 RCX: a96f20814868f300 RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 RBP: ffff888032fbde80 R08: ffffffff819f146c R09: fffffbfff1cfa588 R10: dffffc0000000000 R11: fffffbfff1cfa588 R12: ffff8880411d9620 R13: dffffc0000000000 R14: ffff8880411d9618 R15: ffff88803f847358 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff0ee1cb270 CR3: 0000000000712000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del_init include/linux/list.h:287 [inline] list_lru_del+0x9a/0x1f0 mm/list_lru.c:206 list_lru_del_obj+0x17b/0x250 mm/list_lru.c:223 workingset_update_node+0x174/0x230 mm/workingset.c:636 xas_update lib/xarray.c:356 [inline] update_node lib/xarray.c:764 [inline] xas_store+0xb89/0x1870 lib/xarray.c:851 __filemap_add_folio+0xab1/0x1320 mm/filemap.c:925 filemap_add_folio+0x155/0x380 mm/filemap.c:981 __filemap_get_folio+0x52b/0xae0 mm/filemap.c:1980 grow_dev_folio fs/buffer.c:1039 [inline] grow_buffers fs/buffer.c:1105 [inline] __getblk_slow fs/buffer.c:1131 [inline] bdev_getblk+0x1d4/0x670 fs/buffer.c:1431 getblk_unmovable include/linux/buffer_head.h:369 [inline] ext4_getblk+0x31b/0x880 fs/ext4/inode.c:864 ext4_bread_batch+0x63/0x4e0 fs/ext4/inode.c:933 __ext4_find_entry+0xfab/0x1eb0 fs/ext4/namei.c:1627 ext4_lookup_entry fs/ext4/namei.c:1729 [inline] ext4_lookup+0x15f/0x750 fs/ext4/namei.c:1797 __lookup_slow+0x296/0x400 fs/namei.c:1793 lookup_slow+0x53/0x70 fs/namei.c:1810 walk_component fs/namei.c:2114 [inline] link_path_walk+0x99b/0xea0 fs/namei.c:2479 path_openat+0x266/0x3590 fs/namei.c:3985 do_filp_open+0x27f/0x4e0 fs/namei.c:4016 do_sys_openat2+0x13e/0x1d0 fs/open.c:1427 do_sys_open fs/open.c:1442 [inline] __do_sys_openat fs/open.c:1458 [inline] __se_sys_openat fs/open.c:1453 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1453 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff0ee472a46 Code: 10 00 00 00 44 8b 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 0c f7 d8 89 05 0a 48 01 00 48 83 c8 ff c3 31 RSP: 002b:00007ffdd50a1c28 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ffdd50a1e88 RCX: 00007ff0ee472a46 RDX: 0000000000080000 RSI: 00007ffdd50a1ca0 RDI: 00000000ffffff9c RBP: 00007ffdd50a1c90 R08: 0000000000080000 R09: 00007ffdd50a1ca0 R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffdd50a1ca0 R13: 0000000000000000 R14: 00007ffdd50a1e6f R15: 00000000ffffffff </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x18c/0x190 lib/list_debug.c:65 Code: ba 56 15 fd 42 80 3c 2b 00 74 08 4c 89 e7 e8 7b 02 37 fd 49 8b 56 08 48 c7 c7 20 8f 60 8c 4c 89 fe 4c 89 f1 e8 65 10 38 fc 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f RSP: 0018:ffffc9000cdced10 EFLAGS: 00010046 RAX: 000000000000006d RBX: 1ffff1100823b2c4 RCX: a96f20814868f300 RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 RBP: ffff888032fbde80 R08: ffffffff819f146c R09: fffffbfff1cfa588 R10: dffffc0000000000 R11: fffffbfff1cfa588 R12: ffff8880411d9620 R13: dffffc0000000000 R14: ffff8880411d9618 R15: ffff88803f847358 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff0ee1cb270 CR3: 0000000000712000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
