slab jfs_ip start ffff8880425836f0 pointer offset 1472 size 2216 list_del corruption. prev->next should be ffff888042583388, but was 0000000842583388. (prev=ffff888042583cb0) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:64! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5452 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 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+0x15a/0x190 lib/list_debug.c:62 Code: e8 5b c1 69 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 4c 89 8b fd 49 8b 17 48 c7 c7 00 8a c0 8b 48 89 de 4c 89 f9 e8 47 88 8b fc 90 <0f> 0b 4c 89 f7 e8 2c c1 69 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 1d RSP: 0018:ffffc9000d48fab0 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff888042583388 RCX: e51c0bf794abbf00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa650 R12: 1ffff110084b0796 R13: dffffc0000000000 R14: ffff888042582a60 R15: ffff888042583cb0 FS: 000055555df7a500(0000) GS:ffff88808d302000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555df955c8 CR3: 000000001a076000 CR4: 0000000000352ef0 Call Trace: __list_del_entry_valid include/linux/list.h:132 [inline] __list_del_entry include/linux/list.h:223 [inline] list_del_init include/linux/list.h:295 [inline] inode_io_list_del+0x74/0x1a0 fs/fs-writeback.c:1355 evict+0x15e/0x9c0 fs/inode.c:793 dispose_list fs/inode.c:852 [inline] evict_inodes+0x64c/0x6d0 fs/inode.c:906 generic_shutdown_super+0x9a/0x2c0 fs/super.c:627 kill_block_super+0x44/0x90 fs/super.c:1722 deactivate_locked_super+0xbc/0x130 fs/super.c:473 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1327 task_work_run+0x1d4/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xe9/0x130 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f45219902f7 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffe0cb4fa08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f4521a11d7d RCX: 00007f45219902f7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe0cb4fac0 RBP: 00007ffe0cb4fac0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe0cb50b50 R13: 00007f4521a11d7d R14: 00000000000197a0 R15: 00007ffe0cb50b90 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 5b c1 69 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 4c 89 8b fd 49 8b 17 48 c7 c7 00 8a c0 8b 48 89 de 4c 89 f9 e8 47 88 8b fc 90 <0f> 0b 4c 89 f7 e8 2c c1 69 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 1d RSP: 0018:ffffc9000d48fab0 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff888042583388 RCX: e51c0bf794abbf00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa650 R12: 1ffff110084b0796 R13: dffffc0000000000 R14: ffff888042582a60 R15: ffff888042583cb0 FS: 000055555df7a500(0000) GS:ffff88808d302000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555df955c8 CR3: 000000001a076000 CR4: 0000000000352ef0