------------[ cut here ]------------
WARNING: CPU: 0 PID: 4365 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 4365 Comm: syz.0.34 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 ed f7 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 70 f4 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:ffffc900000079d0 EFLAGS: 00010046
RAX: ffffffff819ecfb0 RBX: 0000000000000008 RCX: ffff88807a733b80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100f4e6771
R10: ffffed100f4e6771 R11: 1ffff1100f4e6770 R12: ffff88807a735308
R13: 00007ffffffff000 R14: ffffc90000007a48 R15: 0000000020000000
FS: 00005555925bd500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000002a6fe000 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_bcff4640d6a7c5a9+0x75/0x214
bpf_dispatcher_nop_func include/linux/bpf.h:790 [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_run3+0x17e/0x320 kernel/trace/bpf_trace.c:1916
trace_workqueue_queue_work include/trace/events/workqueue.h:23 [inline]
__queue_work+0xcee/0xd50 kernel/workqueue.c:1512
call_timer_fn+0x16c/0x530 kernel/time/timer.c:1451
expire_timers kernel/time/timer.c:1491 [inline]
__run_timers+0x550/0x7c0 kernel/time/timer.c:1767
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
handle_softirqs+0x328/0x820 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:unwind_next_frame+0xb9b/0x1d90 arch/x86/kernel/unwind_orc.c:-1
Code: e9 53 01 00 00 80 3d 6b 45 21 0c 00 0f 85 96 09 00 00 c6 05 5e 45 21 0c 01 48 c7 c7 a0 7e 08 8a be 03 00 00 00 e9 31 07 00 00 <48> 89 54 24 50 48 8d 7b 08 48 89 f8 48 c1 e8 03 42 80 3c 28 00 74
RSP: 0018:ffffc90002edf928 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc90002edf9e8 RCX: ffffffff8ddba404
RDX: 1ffffffff1cf2645 RSI: ffffffff8e793212 RDI: ffffc90002edff58
RBP: ffffc90002edfa30 R08: 0000000000000004 R09: 0000000000000008
R10: fffff520005dbf49 R11: 1ffff920005dbf47 R12: 1ffffffff1cf2645
R13: dffffc0000000000 R14: ffffffff8e793228 R15: ffffffff8e793229
arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122
kasan_save_stack+0x35/0x60 mm/kasan/common.c:38
kasan_record_aux_stack+0xb8/0x100 mm/kasan/generic.c:348
task_work_add+0x2f/0x1d0 kernel/task_work.c:38
fput_many+0xde/0x1a0 fs/file_table.c:367
filp_close+0x10e/0x150 fs/open.c:1369
__range_close fs/file.c:694 [inline]
__close_range+0x208/0x4d0 fs/file.c:749
__do_sys_close_range fs/open.c:1408 [inline]
__se_sys_close_range fs/open.c:1405 [inline]
__x64_sys_close_range+0x76/0x80 fs/open.c:1405
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: 0033:0x7fd48b576b69
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdade445c8 EFLAGS: 00000246
ORIG_RAX: 00000000000001b4
RAX: ffffffffffffffda RBX: 00000000000192c4 RCX: 00007fd48b576b69
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 00000005ade448bf
R10: 00007fd48b3e8000 R11: 0000000000000246 R12: 00007fd48b79dfac
R13: 00007fd48b79dfa0 R14: ffffffffffffffff R15: 0000000000000003
irq event stamp: 2353
hardirqs last enabled at (2352): [] handle_softirqs+0x1a4/0x820 kernel/softirq.c:560
hardirqs last disabled at (2353): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline]
hardirqs last disabled at (2353): [] _raw_spin_lock_irq+0x7a/0xe0 kernel/locking/spinlock.c:170
softirqs last enabled at (2340): [] spin_unlock_bh include/linux/spinlock.h:408 [inline]
softirqs last enabled at (2340): [] bpf_link_settle+0x7d/0x140 kernel/bpf/syscall.c:2612
softirqs last disabled at (2351): [] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (2351): [] invoke_softirq kernel/softirq.c:450 [inline]
softirqs last disabled at (2351): [] __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
---[ end trace d26203bad241ae33 ]---
----------------
Code disassembly (best guess):
0: e9 53 01 00 00 jmp 0x158
5: 80 3d 6b 45 21 0c 00 cmpb $0x0,0xc21456b(%rip) # 0xc214577
c: 0f 85 96 09 00 00 jne 0x9a8
12: c6 05 5e 45 21 0c 01 movb $0x1,0xc21455e(%rip) # 0xc214577
19: 48 c7 c7 a0 7e 08 8a mov $0xffffffff8a087ea0,%rdi
20: be 03 00 00 00 mov $0x3,%esi
25: e9 31 07 00 00 jmp 0x75b
* 2a: 48 89 54 24 50 mov %rdx,0x50(%rsp) <-- trapping instruction
2f: 48 8d 7b 08 lea 0x8(%rbx),%rdi
33: 48 89 f8 mov %rdi,%rax
36: 48 c1 e8 03 shr $0x3,%rax
3a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)
3f: 74 .byte 0x74