------------[ cut here ]------------ kernel BUG at fs/jfs/inode.c:175! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5478 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:jfs_evict_inode+0x438/0x440 fs/jfs/inode.c:175 Code: fe e9 e0 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fe ff ff 4c 89 f7 e8 23 2d e3 fe e9 16 fe ff ff e8 a9 82 7b fe 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90001dffaa0 EFLAGS: 00010293 RAX: ffffffff83458507 RBX: ffff8880465d3b20 RCX: ffff8880380024c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880465d3b20 RBP: 0000000000000001 R08: ffffffff8f824677 R09: 1ffffffff1f048ce R10: dffffc0000000000 R11: ffffffff83456130 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff8880465d37a8 R15: ffff8880465d3b20 FS: 00005555784c0500(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c008805000 CR3: 000000003740b000 CR4: 0000000000352ef0 Call Trace: evict+0x5f4/0xae0 fs/inode.c:837 dispose_list fs/inode.c:879 [inline] evict_inodes+0x753/0x7e0 fs/inode.c:933 generic_shutdown_super+0x9a/0x2c0 fs/super.c:628 kill_block_super+0x44/0x90 fs/super.c:1722 deactivate_locked_super+0xbc/0x130 fs/super.c:474 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1318 task_work_run+0x1d4/0x260 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0xef/0x4e0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ffbb4590af7 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:00007ffea07b8bd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007ffbb4613d7d RCX: 00007ffbb4590af7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffea07b8c90 RBP: 00007ffea07b8c90 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffea07b9d20 R13: 00007ffbb4613d7d R14: 0000000000023f5d R15: 00007ffea07b9d60 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:jfs_evict_inode+0x438/0x440 fs/jfs/inode.c:175 Code: fe e9 e0 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fe ff ff 4c 89 f7 e8 23 2d e3 fe e9 16 fe ff ff e8 a9 82 7b fe 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90001dffaa0 EFLAGS: 00010293 RAX: ffffffff83458507 RBX: ffff8880465d3b20 RCX: ffff8880380024c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880465d3b20 RBP: 0000000000000001 R08: ffffffff8f824677 R09: 1ffffffff1f048ce R10: dffffc0000000000 R11: ffffffff83456130 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff8880465d37a8 R15: ffff8880465d3b20 FS: 00005555784c0500(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f492fc05440 CR3: 000000003740b000 CR4: 0000000000352ef0