Oops: divide error: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 4006 Comm: syz-executor.3 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_swevent_set_period+0x121/0x1f0 Code: 89 5c 24 28 e8 80 63 ea ff 31 ff 48 89 de e8 d6 5e ea ff 48 85 db 0f 88 aa 00 00 00 e8 68 63 ea ff 49 8d 04 1c 31 d2 48 89 ef <49> f7 f4 be 08 00 00 00 49 89 c6 4c 89 e0 49 0f af c6 48 29 c3 e8 RSP: 0018:ffff888046b1f6a8 EFLAGS: 00010046 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffc90009c2b000 RDX: 0000000000000000 RSI: ffffffff81898418 RDI: ffff88800964a151 RBP: ffff88800964a151 R08: 0000000000000000 R09: ffffed10012c942b R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888046b1f6d0 R14: 1ffff11008d63ed6 R15: dffffc0000000000 FS: 00007f55f427d700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555754d1708 CR3: 000000001d861000 CR4: 0000000000350ef0 Call Trace: perf_swevent_event+0x149/0x3f0 perf_tp_event+0x497/0xe70 perf_trace_run_bpf_submit+0xef/0x180 perf_trace_preemptirq_template+0x259/0x430 trace_irq_enable.constprop.0+0xa6/0x100 trace_hardirqs_on+0x26/0x40 _raw_spin_unlock_irqrestore+0x2c/0x50 try_to_wake_up+0x8ae/0x11d0 wake_up_q+0xa1/0x130 futex_wake+0x47e/0x540 do_futex+0x26d/0x370 __x64_sys_futex+0x1c9/0x4d0 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f55f6d07b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f55f427d218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f55f6e1af68 RCX: 00007f55f6d07b19 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f55f6e1af6c RBP: 00007f55f6e1af60 R08: 000000000000000e R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 00007f55f6e1af6c R13: 00007ffcb5441d1f R14: 00007f55f427d300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_swevent_set_period+0x121/0x1f0 Code: 89 5c 24 28 e8 80 63 ea ff 31 ff 48 89 de e8 d6 5e ea ff 48 85 db 0f 88 aa 00 00 00 e8 68 63 ea ff 49 8d 04 1c 31 d2 48 89 ef <49> f7 f4 be 08 00 00 00 49 89 c6 4c 89 e0 49 0f af c6 48 29 c3 e8 RSP: 0018:ffff888046b1f6a8 EFLAGS: 00010046 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffc90009c2b000 RDX: 0000000000000000 RSI: ffffffff81898418 RDI: ffff88800964a151 RBP: ffff88800964a151 R08: 0000000000000000 R09: ffffed10012c942b R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888046b1f6d0 R14: 1ffff11008d63ed6 R15: dffffc0000000000 FS: 00007f55f427d700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555754d1708 CR3: 000000001d861000 CR4: 0000000000350ef0 note: syz-executor.3[4006] exited with irqs disabled Oops: divide error: 0000 [#2] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 4006 Comm: syz-executor.3 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_swevent_set_period+0x121/0x1f0 Code: 89 5c 24 28 e8 80 63 ea ff 31 ff 48 89 de e8 d6 5e ea ff 48 85 db 0f 88 aa 00 00 00 e8 68 63 ea ff 49 8d 04 1c 31 d2 48 89 ef <49> f7 f4 be 08 00 00 00 49 89 c6 4c 89 e0 49 0f af c6 48 29 c3 e8 RSP: 0018:ffff88806ce08aa8 EFLAGS: 00010046 RAX: 0000000000000002 RBX: 0000000000000002 RCX: ffffffff8189840a RDX: 0000000000000000 RSI: ffffffff81898418 RDI: ffff88800964a151 RBP: ffff88800964a151 R08: 0000000000000000 R09: ffffed10012c942b R10: 0000000000000002 R11: ffff88801e921498 R12: 0000000000000000 R13: ffff88806ce08ad0 R14: 1ffff1100d9c1156 R15: dffffc0000000000 FS: 00007f55f427d700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555754d1708 CR3: 000000001d861000 CR4: 0000000000350ef0 Call Trace: perf_swevent_event+0x149/0x3f0 perf_tp_event+0x497/0xe70 perf_trace_run_bpf_submit+0xef/0x180 perf_trace_preemptirq_template+0x259/0x430 trace_irq_enable.constprop.0+0xa6/0x100 trace_hardirqs_on+0x26/0x40 handle_softirqs+0x16e/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:make_task_dead+0xa2/0x3b0 Code: 38 00 85 db 0f 84 21 01 00 00 e8 d9 96 38 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 27 92 38 00 48 85 db 0f 84 17 01 00 00 b9 96 38 00 31 ff 65 8b 1d 60 df 48 06 81 e3 ff ff ff 7f 89 de RSP: 0018:ffff888046b1ff28 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffff888017151b80 RCX: ffffffff817c2b86 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff813b5234 RBP: 000000000000000b R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8643ac57 R11: 0000000000000001 R12: ffff888017151b80 R13: 0000000000000001 R14: ffff888017153220 R15: ffff888017151b80 rewind_stack_and_make_dead+0x16/0x20 RIP: 0033:0x7f55f6d07b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f55f427d218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f55f6e1af68 RCX: 00007f55f6d07b19 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f55f6e1af6c RBP: 00007f55f6e1af60 R08: 000000000000000e R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 00007f55f6e1af6c R13: 00007ffcb5441d1f R14: 00007f55f427d300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_swevent_set_period+0x121/0x1f0 Code: 89 5c 24 28 e8 80 63 ea ff 31 ff 48 89 de e8 d6 5e ea ff 48 85 db 0f 88 aa 00 00 00 e8 68 63 ea ff 49 8d 04 1c 31 d2 48 89 ef <49> f7 f4 be 08 00 00 00 49 89 c6 4c 89 e0 49 0f af c6 48 29 c3 e8 RSP: 0018:ffff888046b1f6a8 EFLAGS: 00010046 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffc90009c2b000 RDX: 0000000000000000 RSI: ffffffff81898418 RDI: ffff88800964a151 RBP: ffff88800964a151 R08: 0000000000000000 R09: ffffed10012c942b R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888046b1f6d0 R14: 1ffff11008d63ed6 R15: dffffc0000000000 FS: 00007f55f427d700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555754d1708 CR3: 000000001d861000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 89 5c 24 28 mov %ebx,0x28(%rsp) 4: e8 80 63 ea ff callq 0xffea6389 9: 31 ff xor %edi,%edi b: 48 89 de mov %rbx,%rsi e: e8 d6 5e ea ff callq 0xffea5ee9 13: 48 85 db test %rbx,%rbx 16: 0f 88 aa 00 00 00 js 0xc6 1c: e8 68 63 ea ff callq 0xffea6389 21: 49 8d 04 1c lea (%r12,%rbx,1),%rax 25: 31 d2 xor %edx,%edx 27: 48 89 ef mov %rbp,%rdi * 2a: 49 f7 f4 div %r12 <-- trapping instruction 2d: be 08 00 00 00 mov $0x8,%esi 32: 49 89 c6 mov %rax,%r14 35: 4c 89 e0 mov %r12,%rax 38: 49 0f af c6 imul %r14,%rax 3c: 48 29 c3 sub %rax,%rbx 3f: e8 .byte 0xe8