general protection fault, probably for non-canonical address 0xea89c4aac8abe8ca: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x544e4556455f4650-0x544e4556455f4657] CPU: 1 PID: 2146 Comm: syz.4.528 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:___pcpu_freelist_pop kernel/bpf/percpu_freelist.c:134 [inline] RIP: 0010:__pcpu_freelist_pop+0x777/0x840 kernel/bpf/percpu_freelist.c:188 Code: 00 74 52 48 89 df e8 b8 25 2a 00 eb 48 e8 91 7f e4 ff eb 4b e8 8a 7f e4 ff 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ff e8 9b 24 2a 00 4d 8b 37 48 b8 00 00 00 RSP: 0000:ffffc900012876f0 EFLAGS: 00010006 RAX: 0a89c8aac8abe8ca RBX: ffffe8ffffd103a0 RCX: dffffc0000000000 RDX: 0000000000010000 RSI: 0000000000000004 RDI: ffffc90001287680 RBP: ffffc90001287730 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000250ed0 R12: ffffe8ffffd103a8 R13: 1ffffd1ffffa2074 R14: 0000000000000001 R15: 544e4556455f4652 FS: 00007f8a5a73b6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc021e8ad58 CR3: 0000000147d68000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: pcpu_freelist_pop+0x8a/0xf0 kernel/bpf/percpu_freelist.c:197 __bpf_get_stackid+0x6d5/0x960 kernel/bpf/stackmap.c:271 ____bpf_get_stackid_pe kernel/bpf/stackmap.c:377 [inline] bpf_get_stackid_pe+0x350/0x400 kernel/bpf/stackmap.c:334 bpf_prog_b7921b1218741a5e+0x24/0x37 bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline] __bpf_prog_run include/linux/filter.h:607 [inline] bpf_prog_run include/linux/filter.h:614 [inline] bpf_overflow_handler+0x3d0/0x5e0 kernel/events/core.c:10273 __perf_event_overflow+0x437/0x620 kernel/events/core.c:9448 perf_event_overflow kernel/events/core.c:9469 [inline] perf_swevent_hrtimer+0x400/0x5b0 kernel/events/core.c:10919 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x3bb/0x8e0 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x3c7/0x8c0 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline] __sysvec_apic_timer_interrupt+0x11e/0x440 arch/x86/kernel/apic/apic.c:1124 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0x53/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0033:0x7ffdef7e9751 Code: 39 ba ff ff 89 4e 04 eb e2 55 48 89 e5 48 8b 05 65 b9 ff ff 48 85 ff 74 03 48 89 07 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 50 83 ff 0f 0f 87 34 01 00 00 RSP: 002b:00007f8a5a73b030 EFLAGS: 00000202 RAX: 00007ffdef7e9750 RBX: ffffffffffffffff RCX: 0000000000000000 RDX: 00007f8a598b9b40 RSI: 00007f8a5a73b0b0 RDI: 0000000000000001 RBP: 00007f8a59834c19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8a59a16038 R14: 00007f8a59a15fa0 R15: 00007ffdef7ac628 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:___pcpu_freelist_pop kernel/bpf/percpu_freelist.c:134 [inline] RIP: 0010:__pcpu_freelist_pop+0x777/0x840 kernel/bpf/percpu_freelist.c:188 Code: 00 74 52 48 89 df e8 b8 25 2a 00 eb 48 e8 91 7f e4 ff eb 4b e8 8a 7f e4 ff 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ff e8 9b 24 2a 00 4d 8b 37 48 b8 00 00 00 RSP: 0000:ffffc900012876f0 EFLAGS: 00010006 RAX: 0a89c8aac8abe8ca RBX: ffffe8ffffd103a0 RCX: dffffc0000000000 RDX: 0000000000010000 RSI: 0000000000000004 RDI: ffffc90001287680 RBP: ffffc90001287730 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000250ed0 R12: ffffe8ffffd103a8 R13: 1ffffd1ffffa2074 R14: 0000000000000001 R15: 544e4556455f4652 FS: 00007f8a5a73b6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc021e8ad58 CR3: 0000000147d68000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 00 74 52 48 add %dh,0x48(%rdx,%rdx,2) 4: 89 df mov %ebx,%edi 6: e8 b8 25 2a 00 call 0x2a25c3 b: eb 48 jmp 0x55 d: e8 91 7f e4 ff call 0xffe47fa3 12: eb 4b jmp 0x5f 14: e8 8a 7f e4 ff call 0xffe47fa3 19: 4c 89 f8 mov %r15,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 27: fc ff df * 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 ff mov %r15,%rdi 33: e8 9b 24 2a 00 call 0x2a24d3 38: 4d 8b 37 mov (%r15),%r14 3b: 48 rex.W 3c: b8 .byte 0xb8 3d: 00 00 add %al,(%rax)