------------[ cut here ]------------
WARNING: CPU: 0 PID: 5866 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 5866 Comm: syz.4.553 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 3d 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 c0 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:ffffc90000007998 EFLAGS: 00010246
RAX: ffffffff819ed760 RBX: 0000000000000008 RCX: ffff88805ffa5940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100bff4b29
R10: ffffed100bff4b29 R11: 1ffff1100bff4b28 R12: ffff88805ffa70c8
R13: 00007ffffffff000 R14: ffffc90000007a08 R15: 00000000008f0000
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000008f0000 CR3: 000000000be8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 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_f9451a27f735a1c7+0x38/0x3a8
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
__bpf_trace_kfree+0x6e/0x90 include/trace/events/kmem.h:118
trace_kfree include/trace/events/kmem.h:118 [inline]
kfree+0x25f/0x2a0 mm/slub.c:4554
security_task_free+0x97/0xc0 security/security.c:1691
__put_task_struct+0xf8/0x480 kernel/fork.c:757
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0x962/0x15d0 kernel/rcu/tree.c:2763
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:zap_pte_range mm/memory.c:-1 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1505 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1534 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1555 [inline]
RIP: 0010:unmap_page_range+0x10a6/0x2520 mm/memory.c:1576
Code: 4c 8b 6c 24 18 4c 89 ff e8 27 4f fa ff 89 c3 31 ff 89 de e8 ec 1a cc ff 85 db 0f 88 e5 08 00 00 e8 7f 17 cc ff 48 8b 5c 24 10 <48> 8b 7c 24 30 4c 89 fe ba 00 10 00 00 e8 88 0f 03 00 84 c0 0f 85
RSP: 0018:ffffc90002e4f560 EFLAGS: 00000293
RAX: ffffffff81abb3a1 RBX: ffff888024445bb8 RCX: ffff88805ffa5940
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90002e4f6d0 R08: dffffc0000000000 R09: fffff94000334c47
R10: fffff94000334c47 R11: 1ffffd4000334c46 R12: ffffea00019a6230
R13: ffffc90002e4f840 R14: 00007fb8a3578000 R15: ffffea00019a6200
unmap_vmas+0x11b/0x230 mm/memory.c:1653
exit_mmap+0x38f/0x5f0 mm/mmap.c:3216
__mmput+0x115/0x3b0 kernel/fork.c:1127
exit_mm+0x567/0x6c0 kernel/exit.c:550
do_exit+0x5a1/0x20a0 kernel/exit.c:870
do_group_exit+0x12e/0x300 kernel/exit.c:997
get_signal+0x6ca/0x12c0 kernel/signal.c:2900
arch_do_signal_or_restart+0xc1/0x1300 arch/x86/kernel/signal.c:867
handle_signal_work kernel/entry/common.c:154 [inline]
exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:178
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb8a451bc29
Code: Unable to access opcode bytes at RIP 0x7fb8a451bbff.
RSP: 002b:00007fb8a27830e8 EFLAGS: 00000246
ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fb8a4762fa8 RCX: 00007fb8a451bc29
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fb8a4762fa8
RBP: 00007fb8a4762fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb8a4763038 R14: 00007ffe4e69ca10 R15: 00007ffe4e69caf8
irq event stamp: 1866
hardirqs last enabled at (1876): [] console_unlock+0xd2d/0x1200 kernel/printk/printk.c:2748
hardirqs last disabled at (1887): [] sysvec_apic_timer_interrupt+0xa/0xc0 arch/x86/kernel/apic/apic.c:1108
softirqs last enabled at (128): [] sock_setsockopt+0x1502/0x2270 net/core/sock.c:1379
softirqs last disabled at (717): [] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (717): [] invoke_softirq kernel/softirq.c:450 [inline]
softirqs last disabled at (717): [] __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
---[ end trace 55967933a42e51e3 ]---
----------------
Code disassembly (best guess):
0: 4c 8b 6c 24 18 mov 0x18(%rsp),%r13
5: 4c 89 ff mov %r15,%rdi
8: e8 27 4f fa ff call 0xfffa4f34
d: 89 c3 mov %eax,%ebx
f: 31 ff xor %edi,%edi
11: 89 de mov %ebx,%esi
13: e8 ec 1a cc ff call 0xffcc1b04
18: 85 db test %ebx,%ebx
1a: 0f 88 e5 08 00 00 js 0x905
20: e8 7f 17 cc ff call 0xffcc17a4
25: 48 8b 5c 24 10 mov 0x10(%rsp),%rbx
* 2a: 48 8b 7c 24 30 mov 0x30(%rsp),%rdi <-- trapping instruction
2f: 4c 89 fe mov %r15,%rsi
32: ba 00 10 00 00 mov $0x1000,%edx
37: e8 88 0f 03 00 call 0x30fc4
3c: 84 c0 test %al,%al
3e: 0f .byte 0xf
3f: 85 .byte 0x85