------------[ cut here ]------------
WARNING: CPU: 1 PID: 7009 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 7009 Comm: syz.0.652 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 cb c6 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b4 c6 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000dd0a08 EFLAGS: 00010246
RAX: ffffffff81aaacec RBX: 0000000000000000 RCX: ffff88801f7dd940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aaabfd R09: fffffbfff20ec821
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000dd0a68
FS: 000055558422b500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3031aff8 CR3: 0000000054785000 CR4: 00000000003506e0
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+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_690f12e098ef46de+0x32/0xa38
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+0x1d1/0x380 kernel/trace/bpf_trace.c:1916
__bpf_trace_kmem_cache_free+0x99/0xc0 include/trace/events/kmem.h:138
trace_kmem_cache_free include/trace/events/kmem.h:138 [inline]
kmem_cache_free+0x1ce/0x1f0 mm/slub.c:3516
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0xa15/0x1650 kernel/rcu/tree.c:2763
handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
__do_softirq kernel/softirq.c:592 [inline]
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
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:lock_acquire+0x252/0x4f0 kernel/locking/lockdep.c:5627
Code: 2b 00 74 08 4c 89 f7 e8 fc 8c 67 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90003187ba0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000630f80 RCX: ffffffff81637932
RDX: dffffc0000000000 RSI: ffffffff8a8b3d20 RDI: ffffffff8ad90540
RBP: ffffc90003187ce8 R08: dffffc0000000000 R09: fffffbfff20ec827
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000630f7c
R13: dffffc0000000000 R14: ffffc90003187c00 R15: 0000000000000246
__might_fault+0xb4/0x110 mm/memory.c:5355
_copy_from_user+0x28/0x170 lib/usercopy.c:14
copy_from_user include/linux/uaccess.h:192 [inline]
get_timespec64+0x93/0x270 kernel/time/time.c:787
__do_sys_futex kernel/futex/core.c:4051 [inline]
__se_sys_futex+0x1c6/0x490 kernel/futex/core.c:4040
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f76a7da6819
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:00007ffc9770fcd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007ffc9770fe00 RCX: 00007f76a7da6819
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f76a7f5dfac
RBP: 00007f76a7f5dfac R08: 0000000000000010 R09: 00007ffc9770ffcf
R10: 00007ffc9770fde0 R11: 0000000000000246 R12: 000000000002b6af
R13: 00007ffc9770fde0 R14: 0000000000000032 R15: 000000000002b67d
----------------
Code disassembly (best guess):
0: 2b 00 sub (%rax),%eax
2: 74 08 je 0xc
4: 4c 89 f7 mov %r14,%rdi
7: e8 fc 8c 67 00 call 0x678d08
c: f6 44 24 61 02 testb $0x2,0x61(%rsp)
11: 0f 85 84 01 00 00 jne 0x19b
17: 41 f7 c7 00 02 00 00 test $0x200,%r15d
1e: 74 01 je 0x21
20: fb sti
21: 48 c7 44 24 40 0e 36 movq $0x45e0360e,0x40(%rsp)
28: e0 45
* 2a: 4b c7 44 25 00 00 00 movq $0x0,0x0(%r13,%r12,1) <-- trapping instruction
31: 00 00
33: 43 c7 44 25 09 00 00 movl $0x0,0x9(%r13,%r12,1)
3a: 00 00
3c: 43 rex.XB
3d: c7 .byte 0xc7
3e: 44 rex.R
3f: 25 .byte 0x25