------------[ cut here ]------------
WARNING: CPU: 0 PID: 9146 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 9146 Comm: syz.0.1410 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 5d 94 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 90 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:ffffc90000007900 EFLAGS: 00010006
RAX: ffffffff81a09160 RBX: 0000000000000008 RCX: ffff8880603e8000
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff8880603e8007 R09: 1ffff1100c07d000
R10: dffffc0000000000 R11: ffffed100c07d001 R12: ffff8880603e9788
R13: 00007ffffffff000 R14: ffffc90000007970 R15: 0000000020000000
FS: 00007f6fe4fb46c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6fe4f93d58 CR3: 000000007c5cb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000200000000300 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_ca2ebcd76953ac02_F+0x2c/0x684
bpf_prog_686c087aed3071d7+0x18/0x878
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+0x4ad/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:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:205
Code: 84 00 00 00 00 00 53 48 89 fb e8 17 00 00 00 48 8b 3d 20 bb 10 0c 48 89 de 5b e9 37 42 44 00 00 00 cc cc 00 00 cc 48 8b 04 24 <65> 48 8b 0d 74 4d 89 7e 65 8b 15 75 4d 89 7e 81 e2 00 01 ff 00 74
RSP: 0018:ffffc9000346fc18 EFLAGS: 00000246
RAX: ffffffff819b1736 RBX: 0000000000000000 RCX: ffff8880603e8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000346fed8 R08: ffff88804c15857f R09: 1ffff1100982b0af
R10: dffffc0000000000 R11: ffffed100982b0b0 R12: 0000000040042408
R13: f8f8f8f8f8f8f8f8 R14: fffff5200068df98 R15: ffffc900010ef000
_perf_ioctl kernel/events/core.c:5897 [inline]
perf_ioctl+0xd46/0x2340 kernel/events/core.c:5956
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: 0033:0x7f6fe6d5a629
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:00007f6fe4fb4028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6fe6fd3fa0 RCX: 00007f6fe6d5a629
RDX: 0000000000000005 RSI: 0000000040042408 RDI: 0000000000000006
RBP: 00007f6fe6df0b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6fe6fd4038 R14: 00007f6fe6fd3fa0 R15: 00007ffc17102a08
----------------
Code disassembly (best guess):
0: 84 00 test %al,(%rax)
2: 00 00 add %al,(%rax)
4: 00 00 add %al,(%rax)
6: 53 push %rbx
7: 48 89 fb mov %rdi,%rbx
a: e8 17 00 00 00 call 0x26
f: 48 8b 3d 20 bb 10 0c mov 0xc10bb20(%rip),%rdi # 0xc10bb36
16: 48 89 de mov %rbx,%rsi
19: 5b pop %rbx
1a: e9 37 42 44 00 jmp 0x444256
1f: 00 00 add %al,(%rax)
21: cc int3
22: cc int3
23: 00 00 add %al,(%rax)
25: cc int3
26: 48 8b 04 24 mov (%rsp),%rax
* 2a: 65 48 8b 0d 74 4d 89 mov %gs:0x7e894d74(%rip),%rcx # 0x7e894da6 <-- trapping instruction
31: 7e
32: 65 8b 15 75 4d 89 7e mov %gs:0x7e894d75(%rip),%edx # 0x7e894dae
39: 81 e2 00 01 ff 00 and $0xff0100,%edx
3f: 74 .byte 0x74