------------[ cut here ]------------
WARNING: CPU: 0 PID: 4180 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 4180 Comm: syz-execprog Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 8d f6 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 10 f3 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:ffffc90000007cf0 EFLAGS: 00010006
RAX: ffffffff819ed900 RBX: 0000000000000000 RCX: ffff88807bdbd940
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100f7b7b29
R10: ffffed100f7b7b29 R11: 1ffff1100f7b7b28 R12: ffff88807bdbf0c8
R13: 00007ffffffff000 R14: ffffc90000007d68 R15: 0000000000000000
FS: 000000c00007e098(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555585f24808 CR3: 000000007a3cd000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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_f3c4d654356a1293+0x34/0xfbc
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_trace_run kernel/trace/bpf_trace.c:1878 [inline]
bpf_trace_run2+0x15b/0x2d0 kernel/trace/bpf_trace.c:1915
__traceiter_tlb_flush+0x69/0xb0 include/trace/events/tlb.h:38
trace_tlb_flush+0xe6/0x110 include/trace/events/tlb.h:38
flush_tlb_func+0x43f/0x510 arch/x86/mm/tlb.c:855
flush_smp_call_function_queue+0x2a9/0x760 kernel/smp.c:628
__sysvec_call_function_single+0x98/0x240 arch/x86/kernel/smp.c:248
instr_sysvec_call_function_single arch/x86/kernel/smp.c:243 [inline]
sysvec_call_function_single+0x98/0xc0 arch/x86/kernel/smp.c:243
asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:684
RIP: 0010:freezer_do_not_count include/linux/freezer.h:109 [inline]
RIP: 0010:freezable_schedule include/linux/freezer.h:171 [inline]
RIP: 0010:do_nanosleep+0x1d9/0x760 kernel/time/hrtimer.c:2026
Code: 20 42 80 3c 28 00 4c 8b 64 24 18 74 08 4c 89 e7 e8 cc 96 09 f8 49 83 3c 24 00 0f 84 b9 01 00 00 48 8b 5c 24 30 42 0f b6 04 2b <84> c0 4c 8b 64 24 68 0f 85 cd 01 00 00 41 80 4c 24 03 40 e8 cf 14
RSP: 0018:ffffc90002dffc20 EFLAGS: 00000282
RAX: 0000000000000000 RBX: 1ffff1100f7b7b2d RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff8a0b1c60 RDI: 00000000ffffffff
RBP: ffffc90002dffd30 R08: dffffc0000000000 R09: ffffed1017205449
R10: ffffed1017205449 R11: 1ffff11017205448 R12: ffffc90002dffdc0
R13: dffffc0000000000 R14: ffff88807bdbd940 R15: ffffc90002dffd80
hrtimer_nanosleep+0x2f7/0x520 kernel/time/hrtimer.c:2079
__do_sys_nanosleep kernel/time/hrtimer.c:2114 [inline]
__se_sys_nanosleep kernel/time/hrtimer.c:2100 [inline]
__x64_sys_nanosleep+0x229/0x290 kernel/time/hrtimer.c:2100
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: 0033:0x47fad7
Code: 8b 44 24 20 b9 40 42 0f 00 f7 f1 48 89 04 24 b8 e8 03 00 00 f7 e2 48 89 44 24 08 48 89 e7 be 00 00 00 00 b8 23 00 00 00 0f 05 <48> 83 c4 10 5d c3 cc cc cc b8 ba 00 00 00 0f 05 89 44 24 08 c3 cc
RSP: 002b:000000c00005ff18 EFLAGS: 00000202 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 000000000047fad7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000c00005ff18
RBP: 000000c00005ff28 R08: 0000000000000847 R09: 003716f4cc9a46d2
R10: 00000037a0103161 R11: 0000000000000202 R12: 000000c00005ff18
R13: 000000c00007e008 R14: 000000c000002700 R15: 000000c000002700
----------------
Code disassembly (best guess):
0: 20 42 80 and %al,-0x80(%rdx)
3: 3c 28 cmp $0x28,%al
5: 00 4c 8b 64 add %cl,0x64(%rbx,%rcx,4)
9: 24 18 and $0x18,%al
b: 74 08 je 0x15
d: 4c 89 e7 mov %r12,%rdi
10: e8 cc 96 09 f8 call 0xf80996e1
15: 49 83 3c 24 00 cmpq $0x0,(%r12)
1a: 0f 84 b9 01 00 00 je 0x1d9
20: 48 8b 5c 24 30 mov 0x30(%rsp),%rbx
25: 42 0f b6 04 2b movzbl (%rbx,%r13,1),%eax
* 2a: 84 c0 test %al,%al <-- trapping instruction
2c: 4c 8b 64 24 68 mov 0x68(%rsp),%r12
31: 0f 85 cd 01 00 00 jne 0x204
37: 41 80 4c 24 03 40 orb $0x40,0x3(%r12)
3d: e8 .byte 0xe8
3e: cf iret
3f: 14 .byte 0x14