Oops: general protection fault, probably for non-canonical address 0xdffffc0000000041: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000208-0x000000000000020f]
CPU: 0 UID: 0 PID: 5828 Comm: syz-executor406 Not tainted 6.12.0-rc5-syzkaller-00308-g3e5e6c9900c3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:btrfs_search_slot+0xc5/0x30d0 fs/btrfs/ctree.c:2013
Code: 08 43 c7 44 2c 10 04 f2 04 f3 e8 76 f9 e9 fd 48 89 5c 24 38 48 81 c3 08 02 00 00 48 89 d8 48 c1 e8 03 48 89 84 24 d0 00 00 00 <42> 80 3c 28 00 74 08 48 89 df e8 5c 94 50 fe 48 8b 03 48 89 84 24
RSP: 0018:ffffc90003ce79e0 EFLAGS: 00010206
RAX: 0000000000000041 RBX: 0000000000000208 RCX: ffff88805dfa0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003ce7bb0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100f66e00e R12: 1ffff9200079cf58
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807f3ce840
FS: 000055558e474380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fc3137d620 CR3: 000000005d402000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
extent_from_logical+0x1c8/0x880 fs/btrfs/backref.c:2216
iterate_inodes_from_logical+0x13b/0x330 fs/btrfs/backref.c:2560
btrfs_ioctl_logical_to_ino+0x133/0x2a0 fs/btrfs/ioctl.c:3489
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
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: 0033:0x7f92745f8839
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff3b6029f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fff3b602bc8 RCX: 00007f92745f8839
RDX: 0000000020000080 RSI: 00000000c0389424 RDI: 0000000000000004
RBP: 00007f9274670610 R08: 0000000000000000 R09: 00007fff3b602bc8
R10: 000000000000002e R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff3b602bb8 R14: 0000000000000001 R15: 0000000000000001
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:btrfs_search_slot+0xc5/0x30d0 fs/btrfs/ctree.c:2013
Code: 08 43 c7 44 2c 10 04 f2 04 f3 e8 76 f9 e9 fd 48 89 5c 24 38 48 81 c3 08 02 00 00 48 89 d8 48 c1 e8 03 48 89 84 24 d0 00 00 00 <42> 80 3c 28 00 74 08 48 89 df e8 5c 94 50 fe 48 8b 03 48 89 84 24
RSP: 0018:ffffc90003ce79e0 EFLAGS: 00010206
RAX: 0000000000000041 RBX: 0000000000000208 RCX: ffff88805dfa0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003ce7bb0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100f66e00e R12: 1ffff9200079cf58
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807f3ce840
FS: 000055558e474380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fc3137d620 CR3: 000000005d402000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 08 43 c7 or %al,-0x39(%rbx)
3: 44 2c 10 rex.R sub $0x10,%al
6: 04 f2 add $0xf2,%al
8: 04 f3 add $0xf3,%al
a: e8 76 f9 e9 fd call 0xfde9f985
f: 48 89 5c 24 38 mov %rbx,0x38(%rsp)
14: 48 81 c3 08 02 00 00 add $0x208,%rbx
1b: 48 89 d8 mov %rbx,%rax
1e: 48 c1 e8 03 shr $0x3,%rax
22: 48 89 84 24 d0 00 00 mov %rax,0xd0(%rsp)
29: 00
* 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 5c 94 50 fe call 0xfe509495
39: 48 8b 03 mov (%rbx),%rax
3c: 48 rex.W
3d: 89 .byte 0x89
3e: 84 .byte 0x84
3f: 24 .byte 0x24