R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ------------[ cut here ]------------ kernel BUG at fs/btrfs/extent-tree.c:3433! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 20356 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15365-g305230142ae0 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:btrfs_free_tree_block+0x7e1/0xbd0 fs/btrfs/extent-tree.c:3433 Code: e8 e4 fc fa fd 31 ff 89 c5 89 c6 e8 f9 b2 12 fe 40 84 ed 0f 85 e6 fb ff ff e8 bb b7 12 fe 0f 0b e9 da fb ff ff e8 af b7 12 fe <0f> 0b e8 a8 b7 12 fe 49 8d 7c 24 30 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc90003c6f6f8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8880489a7d80 RCX: ffffc90003d31000 RDX: 0000000000040000 RSI: ffffffff8375e4d1 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffff4 R11: 3030303030302052 R12: ffff888042441280 R13: ffff8880489a7d88 R14: 00000000fffffff4 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7f97b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007ffece707a18 CR3: 0000000076720000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_del_leaf+0x2f9/0x390 fs/btrfs/ctree.c:4445 btrfs_del_items+0xac2/0xd10 fs/btrfs/ctree.c:4560 btrfs_batch_delete_items fs/btrfs/delayed-inode.c:890 [inline] btrfs_delete_delayed_items+0x794/0xbd0 fs/btrfs/delayed-inode.c:956 __btrfs_commit_inode_delayed_items fs/btrfs/delayed-inode.c:1120 [inline] __btrfs_run_delayed_items+0x30c/0x6f0 fs/btrfs/delayed-inode.c:1158 btrfs_commit_transaction+0x55f/0x3b30 fs/btrfs/transaction.c:2353 btrfs_sync_file+0xfa3/0x1310 fs/btrfs/file.c:2004 vfs_fsync_range+0x141/0x220 fs/sync.c:188 vfs_fsync fs/sync.c:202 [inline] do_fsync fs/sync.c:212 [inline] __do_sys_fsync fs/sync.c:220 [inline] __se_sys_fsync fs/sync.c:218 [inline] __ia32_sys_fsync+0x72/0xd0 fs/sync.c:218 do_syscall_32_irqs_on arch/x86/entry/common.c:164 [inline] __do_fast_syscall_32+0x61/0xe0 arch/x86/entry/common.c:230 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:255 entry_SYSENTER_compat_after_hwframe+0x70/0x7a RIP: 0023:0xf7f9c579 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:00000000f7f975ac EFLAGS: 00000292 ORIG_RAX: 0000000000000076 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:btrfs_free_tree_block+0x7e1/0xbd0 fs/btrfs/extent-tree.c:3433 Code: e8 e4 fc fa fd 31 ff 89 c5 89 c6 e8 f9 b2 12 fe 40 84 ed 0f 85 e6 fb ff ff e8 bb b7 12 fe 0f 0b e9 da fb ff ff e8 af b7 12 fe <0f> 0b e8 a8 b7 12 fe 49 8d 7c 24 30 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc90003c6f6f8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8880489a7d80 RCX: ffffc90003d31000 RDX: 0000000000040000 RSI: ffffffff8375e4d1 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffff4 R11: 3030303030302052 R12: ffff888042441280 R13: ffff8880489a7d88 R14: 00000000fffffff4 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7f97b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007ffece707a18 CR3: 0000000076720000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 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