------------[ cut here ]------------
WARNING: CPU: 1 PID: 1186 at kernel/time/hrtimer.c:1052 hrtimer_forward+0x1d6/0x2b0 kernel/time/hrtimer.c:1052
Modules linked in:
CPU: 1 UID: 0 PID: 1186 Comm: irq/33-virtio1- Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:hrtimer_forward+0x1d6/0x2b0 kernel/time/hrtimer.c:1052
Code: 4c 89 33 48 8b 04 24 eb 07 e8 86 34 12 00 31 c0 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d e9 01 d8 4d 09 cc e8 6b 34 12 00 90 <0f> 0b 90 eb df 48 89 e8 4c 09 f8 48 c1 e8 20 74 0a 48 89 e8 31 d2
RSP: 0018:ffffc90000a78bd0 EFLAGS: 00010006
RAX: ffffffff81ac27e5 RBX: ffff8880b883b508 RCX: ffff888026c19dc0
RDX: 0000000000000100 RSI: 0000000000010000 RDI: 0000000000010100
RBP: 000000000009d057 R08: 0000000000010000 R09: 0000000000010100
R10: dffffc0000000000 R11: ffffffff8167a890 R12: ffff8880b883b520
R13: 0000000000184487 R14: 1ffff110171076a4 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8881269c2000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f95323cbf98 CR3: 0000000064088000 CR4: 00000000003526f0
Call Trace:
<IRQ>
hrtimer_forward_now include/linux/hrtimer.h:366 [inline]
dl_server_timer kernel/sched/deadline.c:1193 [inline]
dl_task_timer+0xa42/0x12d0 kernel/sched/deadline.c:1234
__run_hrtimer kernel/time/hrtimer.c:1761 [inline]
__hrtimer_run_queues+0x503/0xd40 kernel/time/hrtimer.c:1825
hrtimer_interrupt+0x45d/0xa90 kernel/time/hrtimer.c:1887
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline]
__sysvec_apic_timer_interrupt+0x10b/0x410 arch/x86/kernel/apic/apic.c:1056
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1050
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:100 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
RIP: 0010:unwind_next_frame+0x12dc/0x2390 arch/x86/kernel/unwind_orc.c:494
Code: cf aa 00 48 8b 44 24 18 48 8b 10 48 c7 c7 80 42 08 8b 89 de e8 45 8e b4 ff e9 43 06 00 00 49 89 d5 48 89 d5 48 89 d8 48 29 e8 <48> 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83 e0 fe 4c 8d 3c 45
RSP: 0018:ffffc90004e26d58 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff8f2cd064 RCX: ffffffff8f2cd064
RDX: ffffffff8f2cd02c RSI: ffffffff8fa15e4e RDI: ffffffff8b620c20
RBP: ffffffff8f2cd064 R08: 0000000000000015 R09: ffffffff8172b165
R10: ffffc90004e26e78 R11: ffffffff81aae030 R12: ffffffff81331f69
R13: ffffffff8f2cd060 R14: ffffc90004e26e28 R15: ffffffff8f2cd060
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:330 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:356
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4180 [inline]
slab_alloc_node mm/slub.c:4229 [inline]
kmem_cache_alloc_node_noprof+0x14e/0x330 mm/slub.c:4281
kmalloc_reserve+0xbd/0x290 net/core/skbuff.c:578
__alloc_skb+0x142/0x2d0 net/core/skbuff.c:669
napi_alloc_skb+0x9b/0x440 net/core/skbuff.c:811
page_to_skb+0x288/0x930 drivers/net/virtio_net.c:889
receive_mergeable drivers/net/virtio_net.c:2496 [inline]
receive_buf+0x45f/0x15e0 drivers/net/virtio_net.c:2634
virtnet_receive_packets drivers/net/virtio_net.c:2992 [inline]
virtnet_receive drivers/net/virtio_net.c:3016 [inline]
virtnet_poll+0x1fc6/0x2d80 drivers/net/virtio_net.c:3110
__napi_poll+0xb6/0x540 net/core/dev.c:7506
napi_poll net/core/dev.c:7569 [inline]
net_rx_action+0x707/0xe00 net/core/dev.c:7696
handle_softirqs+0x22c/0x710 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
__local_bh_enable_ip+0x179/0x270 kernel/softirq.c:259
local_bh_enable include/linux/bottom_half.h:33 [inline]
irq_forced_thread_fn+0xe9/0x120 kernel/irq/manage.c:1156
irq_thread+0x427/0x690 kernel/irq/manage.c:1256
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
----------------
Code disassembly (best guess):
0: cf iret
1: aa stos %al,%es:(%rdi)
2: 00 48 8b add %cl,-0x75(%rax)
5: 44 24 18 rex.R and $0x18,%al
8: 48 8b 10 mov (%rax),%rdx
b: 48 c7 c7 80 42 08 8b mov $0xffffffff8b084280,%rdi
12: 89 de mov %ebx,%esi
14: e8 45 8e b4 ff call 0xffb48e5e
19: e9 43 06 00 00 jmp 0x661
1e: 49 89 d5 mov %rdx,%r13
21: 48 89 d5 mov %rdx,%rbp
24: 48 89 d8 mov %rbx,%rax
27: 48 29 e8 sub %rbp,%rax
* 2a: 48 89 c1 mov %rax,%rcx <-- trapping instruction
2d: 48 c1 f9 02 sar $0x2,%rcx
31: 48 c1 e8 3f shr $0x3f,%rax
35: 48 01 c8 add %rcx,%rax
38: 48 83 e0 fe and $0xfffffffffffffffe,%rax
3c: 4c rex.WR
3d: 8d .byte 0x8d
3e: 3c 45 cmp $0x45,%al