------------[ cut here ]------------
WARNING: CPU: 0 PID: 4549 at mm/maccess.c:226 copy_from_user_nofault+0x5d/0x170 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 4549 Comm: syz.2.617 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:copy_from_user_nofault+0x5d/0x170 mm/maccess.c:226
Code: 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e fc 00 00 00 41 8b 85 80 16 00 00 85 c0 75 02 <0f> 0b 4c 89 e0 48 01 e8 0f 82 b8 00 00 00 48 ba 00 f0 ff ff ff 7f
RSP: 0018:ffffc90000007bd0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffc90000007cc0 RCX: 0000000000000000
RDX: 1ffff110237a8668 RSI: 0000000000000000 RDI: ffff88811bd43340
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8aa67fe7
R10: fffffbfff154cffc R11: 0000000000000001 R12: 0000000000000008
R13: ffff88811bd41cc0 R14: ffffc90000007ce8 R15: ffffffff8145e900
FS: 0000555561474500(0000) GS:ffff8881f6200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c005771000 CR3: 0000000125ca2000 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_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x18/0x40 kernel/trace/bpf_trace.c:163
___bpf_prog_run+0x2fd0/0x74f0 kernel/bpf/core.c:1568
__bpf_prog_run32+0x79/0xb0 kernel/bpf/core.c:1788
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+0xe9/0x280 kernel/trace/bpf_trace.c:1915
trace_hrtimer_start include/trace/events/timer.h:199 [inline]
debug_activate kernel/time/hrtimer.c:466 [inline]
enqueue_hrtimer+0x209/0x2a0 kernel/time/hrtimer.c:1069
__run_hrtimer kernel/time/hrtimer.c:1702 [inline]
__hrtimer_run_queues+0x7d1/0x940 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x2c1/0x730 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
__sysvec_apic_timer_interrupt+0xf5/0x340 arch/x86/kernel/apic/apic.c:1114
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0x65/0x90 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:lock_acquire+0x1d5/0x4b0 kernel/locking/lockdep.c:5591
Code: 75 db 7e 83 f8 01 0f 85 78 02 00 00 9c 58 f6 c4 02 0f 85 63 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90001c57d30 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff9200038afa8 RCX: 0000000000079493
RDX: 1ffff110237a84ec RSI: 0000000000000001 RDI: ffffffff87dfb238
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8aa67ff7
R10: fffffbfff154cffe R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff888117a9fcd8 R15: 0000000000000000
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x27/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:364 [inline]
pick_file+0x20/0x1b0 fs/file.c:623
__range_close fs/file.c:689 [inline]
__close_range+0x229/0x3d0 fs/file.c:747
__do_sys_close_range fs/open.c:1408 [inline]
__se_sys_close_range fs/open.c:1405 [inline]
__x64_sys_close_range+0x6a/0xb0 fs/open.c:1405
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f8692aa8be9
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:00007ffd4022ea48 EFLAGS: 00000246
ORIG_RAX: 00000000000001b4
RAX: ffffffffffffffda RBX: 0000000000013c39 RCX: 00007f8692aa8be9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f8692ce1da0 R08: 0000000000000001 R09: 000000034022ed3f
R10: 0000001b31c20000 R11: 0000000000000246 R12: 00007f8692cdffac
R13: 00007f8692cdffa0 R14: ffffffffffffffff R15: 00007ffd4022eb60
irq event stamp: 1550
hardirqs last enabled at (1549): [] syscall_enter_from_user_mode+0x21/0x70 kernel/entry/common.c:113
hardirqs last disabled at (1550): [] sysvec_apic_timer_interrupt+0xb/0x90 arch/x86/kernel/apic/apic.c:1108
softirqs last enabled at (1366): [] fpu_clone+0x11b/0x370 arch/x86/kernel/fpu/core.c:260
softirqs last disabled at (1364): [] fpu_clone+0x79/0x370 arch/x86/kernel/fpu/core.c:251
---[ end trace 031ec0a4699b8f4e ]---
----------------
Code disassembly (best guess):
0: 75 db jne 0xffffffdd
2: 7e 83 jle 0xffffff87
4: f8 clc
5: 01 0f add %ecx,(%rdi)
7: 85 78 02 test %edi,0x2(%rax)
a: 00 00 add %al,(%rax)
c: 9c pushf
d: 58 pop %rax
e: f6 c4 02 test $0x2,%ah
11: 0f 85 63 02 00 00 jne 0x27a
17: 48 83 7c 24 08 00 cmpq $0x0,0x8(%rsp)
1d: 74 01 je 0x20
1f: fb sti
20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
27: fc ff df
* 2a: 48 01 c3 add %rax,%rbx <-- trapping instruction
2d: 48 c7 03 00 00 00 00 movq $0x0,(%rbx)
34: 48 c7 43 08 00 00 00 movq $0x0,0x8(%rbx)
3b: 00
3c: 48 rex.W
3d: 8b .byte 0x8b
3e: 84 .byte 0x84
3f: 24 .byte 0x24