Oops: general protection fault, probably for non-canonical address 0xdffffc0000000028: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000140-0x0000000000000147]
CPU: 0 UID: 0 PID: 5334 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 d0 d2 79 09 cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000fc8ed20 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff8bac209e RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8bac209e RDI: 0000000000000028
RBP: ffffffff83f9648a R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1006a879a0 R12: 0000000000000000
R13: 0000000000000140 R14: 0000000000000140 R15: 0000000000000001
FS: 00007ff6780986c0(0000) GS:ffff88808c894000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f33e2694000 CR3: 000000001f091000 CR4: 0000000000352ef0
Call Trace:
<TASK>
__kasan_check_byte+0x12/0x40 mm/kasan/common.c:573
kasan_check_byte include/linux/kasan.h:402 [inline]
lock_acquire+0x84/0x350 kernel/locking/lockdep.c:5842
__raw_spin_lock include/linux/spinlock_api_smp.h:158 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:158
spin_lock include/linux/spinlock.h:342 [inline]
detach_extent_buffer_folio+0xda/0x910 fs/btrfs/extent_io.c:2911
btrfs_release_extent_buffer_folios+0x68/0x430 fs/btrfs/extent_io.c:2971
release_extent_buffer+0x16b/0x240 fs/btrfs/extent_io.c:3679
btrfs_force_cow_block+0x1094/0x2450 fs/btrfs/ctree.c:592
btrfs_cow_block+0x3c4/0xa90 fs/btrfs/ctree.c:699
btrfs_search_slot+0xd13/0x2d20 fs/btrfs/ctree.c:2112
btrfs_truncate_inode_items+0x49c/0x23c0 fs/btrfs/inode-item.c:498
btrfs_truncate fs/btrfs/inode.c:7933 [inline]
btrfs_setsize fs/btrfs/inode.c:5459 [inline]
btrfs_setattr+0xb7b/0x12a0 fs/btrfs/inode.c:5494
notify_change+0xc1a/0xf40 fs/attr.c:556
do_truncate+0x1c2/0x250 fs/open.c:68
handle_truncate fs/namei.c:4307 [inline]
do_open fs/namei.c:4703 [inline]
path_openat+0x2f89/0x3860 fs/namei.c:4858
do_file_open+0x23e/0x4a0 fs/namei.c:4887
do_sys_openat2+0x113/0x200 fs/open.c:1364
do_sys_open fs/open.c:1370 [inline]
__do_sys_creat fs/open.c:1448 [inline]
__se_sys_creat fs/open.c:1442 [inline]
__x64_sys_creat+0x8f/0xc0 fs/open.c:1442
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff67719ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff678097fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007ff677416090 RCX: 00007ff67719ce59
RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000200000000040
RBP: 00007ff677232d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff677416128 R14: 00007ff677416090 R15: 00007ffdac3d4958
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 d0 d2 79 09 cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000fc8ed20 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff8bac209e RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8bac209e RDI: 0000000000000028
RBP: ffffffff83f9648a R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1006a879a0 R12: 0000000000000000
R13: 0000000000000140 R14: 0000000000000140 R15: 0000000000000001
FS: 00007ff6780986c0(0000) GS:ffff88808c894000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f33e2694000 CR3: 000000001f091000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess), 4 bytes skipped:
0: 0f 1f 40 00 nopl 0x0(%rax)
4: 90 nop
5: 90 nop
6: 90 nop
7: 90 nop
8: 90 nop
9: 90 nop
a: 90 nop
b: 90 nop
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 90 nop
13: 90 nop
14: 0f 1f 40 d6 nopl -0x2a(%rax)
18: 48 c1 ef 03 shr $0x3,%rdi
1c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
23: fc ff df
* 26: 0f b6 04 07 movzbl (%rdi,%rax,1),%eax <-- trapping instruction
2a: 3c 08 cmp $0x8,%al
2c: 0f 92 c0 setb %al
2f: e9 d0 d2 79 09 jmp 0x979d304
34: cc int3
35: 66 data16
36: 66 data16
37: 66 data16
38: 66 data16
39: 66 data16
3a: 66 data16
3b: 2e cs