------------[ cut here ]------------ WARNING: CPU: 0 PID: 4482 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226 Modules linked in: CPU: 0 PID: 4482 Comm: syz.0.72 Not tainted 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 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 70 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:ffffc90000007958 EFLAGS: 00010246 RAX: ffffffff819ed740 RBX: 0000000000000008 RCX: ffff8880208dd940 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100411bb29 R10: ffffed100411bb29 R11: 1ffff1100411bb28 R12: ffff8880208df0c8 R13: 00007ffffffff000 R14: ffffc900000079c8 R15: 0000000000000000 FS: 00007fd87526e6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2fee66 CR3: 000000005d24e000 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_022eab38d0177c4b+0x3a/0xa8c 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 __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+0x1e7/0x210 mm/slub.c:3516 mac80211_hwsim_beacon_tx+0x4f3/0x920 drivers/net/wireless/mac80211_hwsim.c:1842 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865 __run_hrtimer kernel/time/hrtimer.c:1690 [inline] __hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1754 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1771 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:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:202 Code: 66 2e 0f 1f 84 00 00 00 00 00 53 48 89 fb e8 17 00 00 00 48 8b 3d 30 c4 f1 0b 48 89 de 5b e9 67 9c 43 00 00 00 cc cc 00 00 cc <48> 8b 04 24 65 48 8b 0d 04 a5 8a 7e 65 8b 15 05 a5 8a 7e 81 e2 00 RSP: 0018:ffffc900030ef8c8 EFLAGS: 00000246 RAX: ffffffff81aeae14 RBX: dffffc0000000000 RCX: ffff8880208dd940 RDX: 0000000000000002 RSI: 000035555ade4000 RDI: 000035555ade4000 RBP: ffff888024d0a248 R08: dffffc0000000000 R09: ffff88801ee46868 R10: ffffed1003dc8d0f R11: 1ffff11003dc8d0d R12: 000035555ade4000 R13: 000035555ade4000 R14: ffff888024d0a128 R15: ffff888024d0a108 validate_mm_rb+0x1de/0x230 mm/mmap.c:386 vma_rb_insert mm/mmap.c:458 [inline] __vma_link_rb+0x527/0x550 mm/mmap.c:657 dup_mmap kernel/fork.c:609 [inline] dup_mm kernel/fork.c:1466 [inline] copy_mm+0xc00/0x1380 kernel/fork.c:1518 copy_process+0x17c6/0x3e00 kernel/fork.c:2290 kernel_clone+0x219/0x930 kernel/fork.c:2679 __do_sys_clone kernel/fork.c:2796 [inline] __se_sys_clone kernel/fork.c:2780 [inline] __x64_sys_clone+0x170/0x1c0 kernel/fork.c:2780 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: 0033:0x7fd877006be9 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:00007fd87526dfe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fd87722dfa0 RCX: 00007fd877006be9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000011 RBP: 00007fd877089e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 00007fd87722e038 R14: 00007fd87722dfa0 R15: 00007fff4d761208 irq event stamp: 1704 hardirqs last enabled at (1714): [] asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 hardirqs last disabled at (1721): [] console_unlock+0x9ee/0x1200 kernel/printk/printk.c:2740 softirqs last enabled at (432): [] local_bh_enable+0x5/0x20 include/linux/bottom_half.h:31 softirqs last disabled at (721): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (721): [] invoke_softirq kernel/softirq.c:450 [inline] softirqs last disabled at (721): [] __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659 ---[ end trace 765d7d45b4733679 ]--- ---------------- Code disassembly (best guess): 0: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 7: 00 00 00 a: 53 push %rbx b: 48 89 fb mov %rdi,%rbx e: e8 17 00 00 00 call 0x2a 13: 48 8b 3d 30 c4 f1 0b mov 0xbf1c430(%rip),%rdi # 0xbf1c44a 1a: 48 89 de mov %rbx,%rsi 1d: 5b pop %rbx 1e: e9 67 9c 43 00 jmp 0x439c8a 23: 00 00 add %al,(%rax) 25: cc int3 26: cc int3 27: 00 00 add %al,(%rax) 29: cc int3 * 2a: 48 8b 04 24 mov (%rsp),%rax <-- trapping instruction 2e: 65 48 8b 0d 04 a5 8a mov %gs:0x7e8aa504(%rip),%rcx # 0x7e8aa53a 35: 7e 36: 65 8b 15 05 a5 8a 7e mov %gs:0x7e8aa505(%rip),%edx # 0x7e8aa542 3d: 81 .byte 0x81 3e: e2 00 loop 0x40