BUG: unable to handle page fault for address: ffffffffff600000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0001) - permissions violation
PGD c691067 P4D c691067 PUD c693067 PMD c6b6067 PTE 800000000c609165
Oops: 0001 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3501 Comm: syz-executor352 Not tainted 5.15.147-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:strncpy_from_kernel_nofault+0x89/0x1c0 mm/maccess.c:92
Code: 00 48 89 d0 48 c1 e8 03 48 89 44 24 10 0f b6 04 28 84 c0 48 89 14 24 0f 85 d5 00 00 00 ff 02 45 31 f6 49 89 df 48 8b 54 24 08 <42> 8a 1c 33 4a 8d 3c 32 48 89 f8 48 c1 e8 03 49 89 ec 0f b6 04 28
RSP: 0018:ffffc90002de7898 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88807d679dc0
RDX: ffffc90002de7928 RSI: ffffffffff600000 RDI: ffffffffff600000
RBP: dffffc0000000000 R08: ffffffff8139a0b9 R09: ffffed100facf3b9
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffff600000
R13: 0000000000000008 R14: 0000000000000000 R15: ffffffffff600000
FS: 00005555571a3380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600000 CR3: 000000001952b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
bpf_probe_read_kernel_str_common kernel/trace/bpf_trace.c:255 [inline]
____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:303 [inline]
bpf_probe_read_compat_str+0x10a/0x180 kernel/trace/bpf_trace.c:296
bpf_prog_f17ebaf3f5f7baf8+0x3a/0x624
bpf_dispatcher_nop_func include/linux/bpf.h:776 [inline]
__bpf_prog_run include/linux/filter.h:625 [inline]
bpf_prog_run include/linux/filter.h:632 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1883 [inline]
bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1921
trace_sched_switch include/trace/events/sched.h:220 [inline]
__schedule+0x1e8d/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
freezable_schedule include/linux/freezer.h:172 [inline]
do_nanosleep+0x1bc/0x7b0 kernel/time/hrtimer.c:2044
hrtimer_nanosleep+0x24d/0x490 kernel/time/hrtimer.c:2097
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1308 [inline]
__se_sys_clock_nanosleep+0x323/0x3b0 kernel/time/posix-timers.c:1285
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f5f564a1473
Code: 00 00 00 00 0f 1f 00 83 ff 03 74 7b 83 ff 02 b8 fa ff ff ff 49 89 ca 0f 44 f8 80 3d ee db 03 00 00 74 14 b8 e6 00 00 00 0f 05 <f7> d8 c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec 28 48 89 54 24 10
RSP: 002b:00007fff1abcc248 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000dae RCX: 00007f5f564a1473
RDX: 00007fff1abcc260 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000000000a11e R08: 00007fff1abeb0b0 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff1abcc29c
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
</TASK>
Modules linked in:
CR2: ffffffffff600000
---[ end trace d0f7278ca5dae17e ]---
RIP: 0010:strncpy_from_kernel_nofault+0x89/0x1c0 mm/maccess.c:92
Code: 00 48 89 d0 48 c1 e8 03 48 89 44 24 10 0f b6 04 28 84 c0 48 89 14 24 0f 85 d5 00 00 00 ff 02 45 31 f6 49 89 df 48 8b 54 24 08 <42> 8a 1c 33 4a 8d 3c 32 48 89 f8 48 c1 e8 03 49 89 ec 0f b6 04 28
RSP: 0018:ffffc90002de7898 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88807d679dc0
RDX: ffffc90002de7928 RSI: ffffffffff600000 RDI: ffffffffff600000
RBP: dffffc0000000000 R08: ffffffff8139a0b9 R09: ffffed100facf3b9
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffff600000
R13: 0000000000000008 R14: 0000000000000000 R15: ffffffffff600000
FS: 00005555571a3380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600000 CR3: 000000001952b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 00 48 89 add %cl,-0x77(%rax)
3: d0 48 c1 rorb -0x3f(%rax)
6: e8 03 48 89 44 call 0x4489480e
b: 24 10 and $0x10,%al
d: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax
11: 84 c0 test %al,%al
13: 48 89 14 24 mov %rdx,(%rsp)
17: 0f 85 d5 00 00 00 jne 0xf2
1d: ff 02 incl (%rdx)
1f: 45 31 f6 xor %r14d,%r14d
22: 49 89 df mov %rbx,%r15
25: 48 8b 54 24 08 mov 0x8(%rsp),%rdx
* 2a: 42 8a 1c 33 mov (%rbx,%r14,1),%bl <-- trapping instruction
2e: 4a 8d 3c 32 lea (%rdx,%r14,1),%rdi
32: 48 89 f8 mov %rdi,%rax
35: 48 c1 e8 03 shr $0x3,%rax
39: 49 89 ec mov %rbp,%r12
3c: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax