program: timer_create(0x0, &(0x7f0000066000)={0x0, 0x12}, &(0x7f00009b1ffc)) timer_settime(0x0, 0x0, &(0x7f00000008c0)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x13, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000240)=0x0) timer_settime(r0, 0x0, &(0x7f0000000180)={{0x0, 0x989680}, {0x0, 0x1c9c380}}, 0x0) r1 = signalfd4(0xffffffffffffffff, &(0x7f0000000140), 0x8, 0x0) io_setup(0x206, &(0x7f0000000200)=0x0) r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x1) recvfrom$ax25(r3, 0x0, 0x0, 0x40000040, 0x0, 0x0) io_submit(r2, 0x1, &(0x7f00000005c0)=[&(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, r1, &(0x7f00000003c0)="951aa14bd6f68579cac67c83bf8d4500e5cea1bb1596d4ee6645fa16fa7cacb9214070a622a2c57b89075f59b85c7b5b2c41edc9d2cd5a2c95ed1c2cf72425be9c1a2df1b60a309bc3228d7e85b300f0d7a042a40166b9208e9d2e423c32ad8e47adedf5dc425c6bcb031fb2230835d41afc23476eae602bad3246417e5ac757", 0x80}]) rt_sigaction(0x3, &(0x7f0000000240)={0x0, 0x1, 0x0, {[0x6]}}, 0x0, 0x8, &(0x7f0000000380)) timer_create(0x0, &(0x7f0000066000)={0x0, 0x12}, &(0x7f00009b1ffc)) (async) timer_settime(0x0, 0x0, &(0x7f00000008c0)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) (async) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x13, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000240)) (async) timer_settime(r0, 0x0, &(0x7f0000000180)={{0x0, 0x989680}, {0x0, 0x1c9c380}}, 0x0) (async) signalfd4(0xffffffffffffffff, &(0x7f0000000140), 0x8, 0x0) (async) io_setup(0x206, &(0x7f0000000200)) (async) syz_init_net_socket$ax25(0x3, 0x2, 0x1) (async) recvfrom$ax25(r3, 0x0, 0x0, 0x40000040, 0x0, 0x0) (async) io_submit(r2, 0x1, &(0x7f00000005c0)=[&(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, r1, &(0x7f00000003c0)="951aa14bd6f68579cac67c83bf8d4500e5cea1bb1596d4ee6645fa16fa7cacb9214070a622a2c57b89075f59b85c7b5b2c41edc9d2cd5a2c95ed1c2cf72425be9c1a2df1b60a309bc3228d7e85b300f0d7a042a40166b9208e9d2e423c32ad8e47adedf5dc425c6bcb031fb2230835d41afc23476eae602bad3246417e5ac757", 0x80}]) (async) rt_sigaction(0x3, &(0x7f0000000240)={0x0, 0x1, 0x0, {[0x6]}}, 0x0, 0x8, &(0x7f0000000380)) (async) [ 58.739294][ C0] ------------[ cut here ]------------ [ 58.741701][ C0] WARNING: CPU: 0 PID: 0 at kernel/signal.c:2050 posixtimer_send_sigqueue+0xa08/0xce0 [ 58.745392][ C0] Modules linked in: [ 58.746947][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc7-syzkaller-00019-gc45323b7560e #0 [ 58.750890][ C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 58.754745][ C0] RIP: 0010:posixtimer_send_sigqueue+0xa08/0xce0 [ 58.757067][ C0] Code: 00 0f 85 f4 02 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 23 1e 3b 00 4c 8b 64 24 08 e9 28 ff ff ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 f7 [ 58.764296][ C0] RSP: 0018:ffffc90000007c00 EFLAGS: 00010082 [ 58.766666][ C0] RAX: dffffc0000000000 RBX: 1ffff11007f3083f RCX: ffffffff8e6965c0 [ 58.769622][ C0] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 [ 58.772567][ C0] RBP: ffffc90000007cf8 R08: ffffffff8164741c R09: ffffffff816473c1 [ 58.775538][ C0] R10: 0000000000000002 R11: ffffffff8e6965c0 R12: ffff88803f9841e0 [ 58.778480][ C0] R13: 1ffff11007f3084c R14: ffff88803f9841f8 R15: ffff88803f9842a0 [ 58.781373][ C0] FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 [ 58.784861][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.787357][ C0] CR2: 00007f2e04f28fe0 CR3: 0000000043170000 CR4: 0000000000352ef0 [ 58.790427][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.793482][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.796506][ C0] Call Trace: [ 58.797722][ C0] [ 58.798810][ C0] ? __warn+0x165/0x4d0 [ 58.800361][ C0] ? posixtimer_send_sigqueue+0xa08/0xce0 [ 58.802556][ C0] ? report_bug+0x2b3/0x500 [ 58.804298][ C0] ? posixtimer_send_sigqueue+0xa08/0xce0 [ 58.806540][ C0] ? handle_bug+0x60/0x90 [ 58.808280][ C0] ? exc_invalid_op+0x1a/0x50 [ 58.810093][ C0] ? asm_exc_invalid_op+0x1a/0x20 [ 58.812092][ C0] ? prepare_signal+0x931/0xc90 [ 58.813994][ C0] ? prepare_signal+0x98c/0xc90 [ 58.815980][ C0] ? posixtimer_send_sigqueue+0xa08/0xce0 [ 58.818146][ C0] ? posixtimer_send_sigqueue+0xd3/0xce0 [ 58.820251][ C0] ? __pfx_posixtimer_send_sigqueue+0x10/0x10 [ 58.822575][ C0] posix_timer_fn+0xe2/0x160 [ 58.824335][ C0] ? __pfx_posix_timer_fn+0x10/0x10 [ 58.826392][ C0] __hrtimer_run_queues+0x59b/0xd30 [ 58.828392][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 58.830552][ C0] ? kvm_clock_get_cycles+0x52/0x70 [ 58.832482][ C0] ? ktime_get_update_offsets_now+0x393/0x3b0 [ 58.834779][ C0] hrtimer_interrupt+0x403/0xa40 [ 58.836686][ C0] __sysvec_apic_timer_interrupt+0x110/0x420 [ 58.838863][ C0] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 58.840924][ C0] [ 58.842064][ C0] [ 58.843208][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 58.845583][ C0] RIP: 0010:default_idle+0x13/0x20 [ 58.847589][ C0] Code: 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d b3 5c 3c 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 [ 58.855145][ C0] RSP: 0018:ffffffff8e607d68 EFLAGS: 000002c2 [ 58.857398][ C0] RAX: 677c57da2da6f900 RBX: ffffffff8174581c RCX: 0000000000009b21 [ 58.860330][ C0] RDX: 0000000000000001 RSI: ffffffff8c0a98e0 RDI: ffffffff8c5fb220 [ 58.863297][ C0] RBP: ffffffff8e607eb8 R08: ffff88801fc37cdb R09: 1ffff11003f86f9b [ 58.866187][ C0] R10: dffffc0000000000 R11: ffffed1003f86f9c R12: 1ffffffff1cc0fc6 [ 58.869025][ C0] R13: 1ffffffff1cd2cb8 R14: 0000000000000000 R15: dffffc0000000000 [ 58.871942][ C0] ? do_idle+0x22c/0x5c0 [ 58.873668][ C0] default_idle_call+0x74/0xb0 [ 58.875380][ C0] do_idle+0x22c/0x5c0 [ 58.876853][ C0] ? __pfx___schedule+0x10/0x10 [ 58.878675][ C0] ? __pfx_do_idle+0x10/0x10 [ 58.880414][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 58.882702][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 58.885075][ C0] ? rest_init+0x31/0x300 [ 58.886709][ C0] ? rest_init+0x31/0x300 [ 58.888320][ C0] cpu_startup_entry+0x42/0x60 [ 58.890125][ C0] rest_init+0x2dc/0x300 [ 58.891722][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 58.893797][ C0] start_kernel+0x47f/0x500 [ 58.895401][ C0] x86_64_start_reservations+0x2a/0x30 [ 58.897374][ C0] x86_64_start_kernel+0x9f/0xa0 [ 58.899172][ C0] common_startup_64+0x13e/0x147 [ 58.901088][ C0] [ 58.902263][ C0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 58.904884][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc7-syzkaller-00019-gc45323b7560e #0 [ 58.908583][ C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 58.912730][ C0] Call Trace: [ 58.913973][ C0] [ 58.915097][ C0] dump_stack_lvl+0x241/0x360 [ 58.916836][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 58.918726][ C0] ? __pfx__printk+0x10/0x10 [ 58.920456][ C0] ? _printk+0xd5/0x120 [ 58.921989][ C0] ? __init_begin+0x41000/0x41000 [ 58.923883][ C0] ? vscnprintf+0x5d/0x90 [ 58.925518][ C0] panic+0x349/0x880 [ 58.927032][ C0] ? __warn+0x174/0x4d0 [ 58.928573][ C0] ? __pfx_panic+0x10/0x10 [ 58.930301][ C0] ? common_startup_64+0x13e/0x147 [ 58.932261][ C0] __warn+0x344/0x4d0 [ 58.933783][ C0] ? posixtimer_send_sigqueue+0xa08/0xce0 [ 58.935918][ C0] report_bug+0x2b3/0x500 [ 58.937620][ C0] ? posixtimer_send_sigqueue+0xa08/0xce0 [ 58.939581][ C0] handle_bug+0x60/0x90 [ 58.941169][ C0] exc_invalid_op+0x1a/0x50 [ 58.942950][ C0] asm_exc_invalid_op+0x1a/0x20 [ 58.944712][ C0] RIP: 0010:posixtimer_send_sigqueue+0xa08/0xce0 [ 58.946999][ C0] Code: 00 0f 85 f4 02 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 23 1e 3b 00 4c 8b 64 24 08 e9 28 ff ff ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 f7 [ 58.954121][ C0] RSP: 0018:ffffc90000007c00 EFLAGS: 00010082 [ 58.956345][ C0] RAX: dffffc0000000000 RBX: 1ffff11007f3083f RCX: ffffffff8e6965c0 [ 58.959129][ C0] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 [ 58.962060][ C0] RBP: ffffc90000007cf8 R08: ffffffff8164741c R09: ffffffff816473c1 [ 58.964989][ C0] R10: 0000000000000002 R11: ffffffff8e6965c0 R12: ffff88803f9841e0 [ 58.967985][ C0] R13: 1ffff11007f3084c R14: ffff88803f9841f8 R15: ffff88803f9842a0 [ 58.970909][ C0] ? prepare_signal+0x931/0xc90 [ 58.972792][ C0] ? prepare_signal+0x98c/0xc90 [ 58.974610][ C0] ? posixtimer_send_sigqueue+0xd3/0xce0 [ 58.976670][ C0] ? __pfx_posixtimer_send_sigqueue+0x10/0x10 [ 58.978939][ C0] posix_timer_fn+0xe2/0x160 [ 58.980657][ C0] ? __pfx_posix_timer_fn+0x10/0x10 [ 58.982602][ C0] __hrtimer_run_queues+0x59b/0xd30 [ 58.984589][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 58.986780][ C0] ? kvm_clock_get_cycles+0x52/0x70 [ 58.988655][ C0] ? ktime_get_update_offsets_now+0x393/0x3b0 [ 58.990966][ C0] hrtimer_interrupt+0x403/0xa40 [ 58.992838][ C0] __sysvec_apic_timer_interrupt+0x110/0x420 [ 58.995070][ C0] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 58.997204][ C0] [ 58.998333][ C0] [ 58.999469][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 59.001708][ C0] RIP: 0010:default_idle+0x13/0x20 [ 59.003617][ C0] Code: 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d b3 5c 3c 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 [ 59.011666][ C0] RSP: 0018:ffffffff8e607d68 EFLAGS: 000002c2 [ 59.014430][ C0] RAX: 677c57da2da6f900 RBX: ffffffff8174581c RCX: 0000000000009b21 [ 59.018072][ C0] RDX: 0000000000000001 RSI: ffffffff8c0a98e0 RDI: ffffffff8c5fb220 [ 59.021598][ C0] RBP: ffffffff8e607eb8 R08: ffff88801fc37cdb R09: 1ffff11003f86f9b [ 59.025057][ C0] R10: dffffc0000000000 R11: ffffed1003f86f9c R12: 1ffffffff1cc0fc6 [ 59.028339][ C0] R13: 1ffffffff1cd2cb8 R14: 0000000000000000 R15: dffffc0000000000 [ 59.031464][ C0] ? do_idle+0x22c/0x5c0 [ 59.033111][ C0] default_idle_call+0x74/0xb0 [ 59.035178][ C0] do_idle+0x22c/0x5c0 [ 59.036749][ C0] ? __pfx___schedule+0x10/0x10 [ 59.038518][ C0] ? __pfx_do_idle+0x10/0x10 [ 59.040287][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 59.042531][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 59.044915][ C0] ? rest_init+0x31/0x300 [ 59.046780][ C0] ? rest_init+0x31/0x300 [ 59.048414][ C0] cpu_startup_entry+0x42/0x60 [ 59.050300][ C0] rest_init+0x2dc/0x300 [ 59.051917][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 59.054292][ C0] start_kernel+0x47f/0x500 [ 59.056209][ C0] x86_64_start_reservations+0x2a/0x30 [ 59.058249][ C0] x86_64_start_kernel+0x9f/0xa0 [ 59.060125][ C0] common_startup_64+0x13e/0x147 [ 59.061973][ C0] [ 59.063490][ C0] Kernel Offset: disabled [ 59.065262][ C0] Rebooting in 86400 seconds..