------------[ cut here ]------------ kernel BUG at fs/inode.c:626! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 7700 Comm: syz-executor.2 Not tainted 6.10.0-rc1-syzkaller-00013-g2bfcfd584ff5 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:clear_inode+0x15b/0x190 fs/inode.c:626 Code: 00 00 00 5b 5d 41 5c c3 cc cc cc cc e8 1e 7e 8b ff 90 0f 0b e8 16 7e 8b ff 90 0f 0b e8 0e 7e 8b ff 90 0f 0b e8 06 7e 8b ff 90 <0f> 0b e8 fe 7d 8b ff 90 0f 0b e8 b6 b0 e8 ff e9 d2 fe ff ff e8 ac RSP: 0018:ffffc90003a2fab0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888028014230 RCX: ffffffff82030100 RDX: ffff88801e1fa440 RSI: ffffffff8203016a RDI: 0000000000000007 RBP: 0000000000000040 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000040 R11: 0000000000000001 R12: 0000000000000020 R13: ffff88802855c000 R14: 0000000000000000 R15: ffff888028014230 FS: 0000000000000000(0000) GS:ffff88802c000000(0063) knlGS:0000000056b5e400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f58c1d30980 CR3: 000000006b300000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000001000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_evict_inode+0x529/0xe80 fs/btrfs/inode.c:5262 evict+0x2ed/0x6c0 fs/inode.c:667 dispose_list+0x117/0x1e0 fs/inode.c:700 evict_inodes+0x34e/0x450 fs/inode.c:750 generic_shutdown_super+0xb5/0x3d0 fs/super.c:627 kill_anon_super+0x3a/0x60 fs/super.c:1226 btrfs_kill_super+0x3b/0x50 fs/btrfs/super.c:2096 deactivate_locked_super+0xbe/0x1a0 fs/super.c:473 deactivate_super+0xde/0x100 fs/super.c:506 cleanup_mnt+0x222/0x450 fs/namespace.c:1267 task_work_run+0x14e/0x250 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x278/0x2a0 kernel/entry/common.c:218 __do_fast_syscall_32+0x80/0x120 arch/x86/entry/common.c:389 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf72c7579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000ff99b808 EFLAGS: 00000292 ORIG_RAX: 0000000000000034 RAX: 0000000000000000 RBX: 00000000ff99b8b0 RCX: 0000000000000009 RDX: 00000000f741dff4 RSI: 00000000f736e361 RDI: 00000000ff99c954 RBP: 00000000ff99b8b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:clear_inode+0x15b/0x190 fs/inode.c:626 Code: 00 00 00 5b 5d 41 5c c3 cc cc cc cc e8 1e 7e 8b ff 90 0f 0b e8 16 7e 8b ff 90 0f 0b e8 0e 7e 8b ff 90 0f 0b e8 06 7e 8b ff 90 <0f> 0b e8 fe 7d 8b ff 90 0f 0b e8 b6 b0 e8 ff e9 d2 fe ff ff e8 ac RSP: 0018:ffffc90003a2fab0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888028014230 RCX: ffffffff82030100 RDX: ffff88801e1fa440 RSI: ffffffff8203016a RDI: 0000000000000007 RBP: 0000000000000040 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000040 R11: 0000000000000001 R12: 0000000000000020 R13: ffff88802855c000 R14: 0000000000000000 R15: ffff888028014230 FS: 0000000000000000(0000) GS:ffff88802c000000(0063) knlGS:0000000056b5e400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000c000f9c4e0 CR3: 000000006b300000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000001000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi