Oops: general protection fault, probably for non-canonical address 0xdffffc00e0000154: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x0000000700000aa0-0x0000000700000aa7]
CPU: 1 UID: 0 PID: 15551 Comm: syz.6.1107 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
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 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90006057270 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffffffff8b15d2ce RCX: 0000000080000003
RDX: 0000000000000000 RSI: ffffffff8b15d2ce RDI: 00000000e0000154
RBP: ffffffff819ec676 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1006894152 R12: 0000000000000000
R13: 0000000700000aa0 R14: 0000000700000aa0 R15: 0000000000000001
FS: 00007f193aa0d6c0(0000) GS:ffff888126695000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f193aa0cff8 CR3: 000000005f646000 CR4: 00000000003526f0
Call Trace:
<TASK>
__kasan_check_byte+0x12/0x40 mm/kasan/common.c:573
kasan_check_byte include/linux/kasan.h:402 [inline]
lock_acquire+0x84/0x330 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:154
task_blocks_on_rt_mutex kernel/locking/rtmutex.c:1265 [inline]
__rt_mutex_slowlock kernel/locking/rtmutex.c:1719 [inline]
__rt_mutex_slowlock_locked+0x1226/0x25c0 kernel/locking/rtmutex.c:1760
rt_mutex_slowlock+0xbd/0x170 kernel/locking/rtmutex.c:1800
__rt_mutex_lock kernel/locking/rtmutex.c:1815 [inline]
rwbase_write_lock+0x14d/0x730 kernel/locking/rwbase_rt.c:244
i_mmap_lock_write include/linux/fs.h:512 [inline]
vma_link_file mm/vma.c:1811 [inline]
__mmap_new_vma mm/vma.c:2548 [inline]
__mmap_region mm/vma.c:2752 [inline]
mmap_region+0x1b07/0x1f50 mm/vma.c:2830
do_mmap+0xc2f/0x10c0 mm/mmap.c:558
vm_mmap_pgoff+0x2cc/0x4f0 mm/util.c:581
ksys_mmap_pgoff+0x4e8/0x720 mm/mmap.c:604
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f193c7dbf79
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:00007f193aa0d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f193ca56090 RCX: 00007f193c7dbf79
RDX: 0000000000000001 RSI: 0000000000400000 RDI: 0000200000000000
RBP: 00007f193c8727e0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000010012 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f193ca56128 R14: 00007f193ca56090 R15: 00007fffe0ac87b8
</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 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90006057270 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffffffff8b15d2ce RCX: 0000000080000003
RDX: 0000000000000000 RSI: ffffffff8b15d2ce RDI: 00000000e0000154
RBP: ffffffff819ec676 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1006894152 R12: 0000000000000000
R13: 0000000700000aa0 R14: 0000000700000aa0 R15: 0000000000000001
FS: 00007f193aa0d6c0(0000) GS:ffff888126695000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f193aa0cff8 CR3: 000000005f646000 CR4: 00000000003526f0
----------------
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: c3 ret
30: cc int3
31: cc int3
32: cc int3
33: cc int3
34: cc int3
35: 66 data16
36: 66 data16
37: 66 data16
38: 66 data16
39: 66 data16
3a: 66 data16
3b: 2e cs