------------[ cut here ]------------
WARNING: CPU: 0 PID: 21478 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 21478 Comm: syz.2.5306 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 5d 95 d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 e0 91 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe
RSP: 0018:ffffc90000007918 EFLAGS: 00010006
RAX: ffffffff81a0b710 RBX: 0000000000000008 RCX: ffff888026acd940
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888026acd947 R09: 1ffff11004d59b28
R10: dffffc0000000000 R11: ffffed1004d59b29 R12: ffff888026acf0c8
R13: 00007ffffffff000 R14: ffffc90000007988 R15: 0000000000000005
FS: 00007ff9da8876c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000064f9b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
bpf_probe_read_compat+0xdd/0x170 kernel/trace/bpf_trace.c:277
bpf_prog_35c2aeabad5a7bfe+0x45/0xed8
bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
bpf_overflow_handler+0x1c2/0x4a0 kernel/events/core.c:10297
__perf_event_overflow+0x364/0x530 kernel/events/core.c:9515
perf_swevent_hrtimer+0x41b/0x5b0 kernel/events/core.c:10934
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x4b4/0xb70 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
__sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:trace_event_get_offsets_lock include/trace/events/lock.h:-1 [inline]
RIP: 0010:perf_trace_lock+0xa2/0x390 include/trace/events/lock.h:39
Code: 43 c6 44 25 08 04 48 89 74 24 38 48 8d 5e 18 48 89 d8 48 c1 e8 03 48 89 44 24 28 42 80 3c 20 00 74 08 48 89 df e8 be 8a 61 00 <48> 89 5c 24 30 48 8b 03 48 85 c0 48 c7 c7 e0 3d 2b 8a 48 0f 45 f8
RSP: 0018:ffffc90002e6f900 EFLAGS: 00000246
RAX: 1ffff11009737e99 RBX: ffff88804b9bf4c8 RCX: dffffc0000000000
RDX: ffffffff819b5636 RSI: ffff88804b9bf4b0 RDI: ffffffff8c1ee4e0
RBP: ffffc90002e6f9f0 R08: ffffffff8d8a06ef R09: 1ffffffff1b140dd
R10: dffffc0000000000 R11: fffffbfff1b140de R12: dffffc0000000000
R13: 1ffff920005cdf28 R14: ffff8880604aec18 R15: ffffffff8c1ee4e0
trace_lock_release include/trace/events/lock.h:58 [inline]
lock_release+0x84a/0x8a0 kernel/locking/lockdep.c:5634
__mutex_unlock_slowpath+0xc8/0x6c0 kernel/locking/mutex.c:851
perf_event_ctx_unlock kernel/events/core.c:1413 [inline]
perf_ioctl+0x2076/0x2340 kernel/events/core.c:5957
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ff9dc62de59
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:00007ff9da887028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff9dc8a6fa0 RCX: 00007ff9dc62de59
RDX: 000000000000000b RSI: 0000000040042408 RDI: 000000000000000c
RBP: 00007ff9dc6c3d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff9dc8a7038 R14: 00007ff9dc8a6fa0 R15: 00007ffead7f8648
----------------
Code disassembly (best guess):
0: 43 c6 44 25 08 04 movb $0x4,0x8(%r13,%r12,1)
6: 48 89 74 24 38 mov %rsi,0x38(%rsp)
b: 48 8d 5e 18 lea 0x18(%rsi),%rbx
f: 48 89 d8 mov %rbx,%rax
12: 48 c1 e8 03 shr $0x3,%rax
16: 48 89 44 24 28 mov %rax,0x28(%rsp)
1b: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1)
20: 74 08 je 0x2a
22: 48 89 df mov %rbx,%rdi
25: e8 be 8a 61 00 call 0x618ae8
* 2a: 48 89 5c 24 30 mov %rbx,0x30(%rsp) <-- trapping instruction
2f: 48 8b 03 mov (%rbx),%rax
32: 48 85 c0 test %rax,%rax
35: 48 c7 c7 e0 3d 2b 8a mov $0xffffffff8a2b3de0,%rdi
3c: 48 0f 45 f8 cmovne %rax,%rdi