Warning: Permanently added '10.128.1.19' (ED25519) to the list of known hosts. 2026/04/16 07:53:04 ignoring optional flag "type"="gce" 2026/04/16 07:53:04 parsed 1 programs 2026/04/16 07:53:11 executed programs: 0 [ 193.083753][ T5976] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 193.631157][ T1144] ===================================================== [ 193.638368][ T1144] BUG: KMSAN: uninit-value in irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 193.647378][ T1144] irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 193.653965][ T1144] irqentry_exit+0x7b/0x760 [ 193.658651][ T1144] sysvec_apic_timer_interrupt+0x52/0x90 [ 193.664463][ T1144] asm_sysvec_apic_timer_interrupt+0x1f/0x30 [ 193.670607][ T1144] __msan_metadata_ptr_for_load_4+0x30/0x40 [ 193.676659][ T1144] ip_fast_csum+0x1e6/0x3f0 [ 193.681294][ T1144] nsim_dev_trap_report_work+0x8c0/0x1430 [ 193.687173][ T1144] process_scheduled_works+0xb65/0x1e40 [ 193.692872][ T1144] worker_thread+0xee4/0x1590 [ 193.697697][ T1144] kthread+0x53f/0x600 [ 193.701923][ T1144] ret_from_fork+0x20f/0x8d0 [ 193.706650][ T1144] ret_from_fork_asm+0x1a/0x30 [ 193.711569][ T1144] [ 193.713945][ T1144] Uninit was created at: [ 193.718590][ T1144] __kmalloc_node_track_caller_noprof+0x4f6/0x1750 [ 193.725276][ T1144] __alloc_skb+0x90d/0x1190 [ 193.729900][ T1144] nsim_dev_trap_report_work+0x3f2/0x1430 [ 193.735771][ T1144] process_scheduled_works+0xb65/0x1e40 [ 193.741473][ T1144] worker_thread+0xee4/0x1590 [ 193.746299][ T1144] kthread+0x53f/0x600 [ 193.750533][ T1144] ret_from_fork+0x20f/0x8d0 [ 193.755262][ T1144] ret_from_fork_asm+0x1a/0x30 [ 193.760181][ T1144] [ 193.762600][ T1144] CPU: 1 UID: 0 PID: 1144 Comm: kworker/u8:8 Not tainted syzkaller #0 PREEMPT(full) [ 193.772191][ T1144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 193.782377][ T1144] Workqueue: events_unbound nsim_dev_trap_report_work [ 193.789350][ T1144] ===================================================== [ 193.796353][ T1144] Disabling lock debugging due to kernel taint [ 193.802582][ T1144] Kernel panic - not syncing: kmsan.panic set ... [ 193.809108][ T1144] CPU: 1 UID: 0 PID: 1144 Comm: kworker/u8:8 Tainted: G B syzkaller #0 PREEMPT(full) [ 193.820294][ T1144] Tainted: [B]=BAD_PAGE [ 193.824525][ T1144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 193.834692][ T1144] Workqueue: events_unbound nsim_dev_trap_report_work [ 193.841677][ T1144] Call Trace: [ 193.845037][ T1144] [ 193.848043][ T1144] __dump_stack+0x26/0x30 [ 193.852528][ T1144] dump_stack_lvl+0x50/0x1c0 [ 193.857265][ T1144] ? dump_stack+0x12/0x25 [ 193.861747][ T1144] dump_stack+0x1e/0x25 [ 193.866047][ T1144] vpanic+0x7b4/0x1430 [ 193.870291][ T1144] panic+0x15d/0x160 [ 193.874390][ T1144] kmsan_report+0x31a/0x320 [ 193.879162][ T1144] ? __msan_warning+0x1b/0x30 [ 193.883986][ T1144] ? irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 193.890747][ T1144] ? irqentry_exit+0x7b/0x760 [ 193.895588][ T1144] ? sysvec_apic_timer_interrupt+0x52/0x90 [ 193.901568][ T1144] ? asm_sysvec_apic_timer_interrupt+0x1f/0x30 [ 193.907875][ T1144] ? __msan_metadata_ptr_for_load_4+0x30/0x40 [ 193.914110][ T1144] ? ip_fast_csum+0x1e6/0x3f0 [ 193.918915][ T1144] ? nsim_dev_trap_report_work+0x8c0/0x1430 [ 193.924970][ T1144] ? process_scheduled_works+0xb65/0x1e40 [ 193.930846][ T1144] ? worker_thread+0xee4/0x1590 [ 193.935858][ T1144] ? kthread+0x53f/0x600 [ 193.940268][ T1144] ? ret_from_fork+0x20f/0x8d0 [ 193.945172][ T1144] ? ret_from_fork_asm+0x1a/0x30 [ 193.950401][ T1144] ? kmsan_get_metadata+0xf1/0x160 [ 193.955693][ T1144] ? kmsan_internal_set_shadow_origin+0x7a/0x110 [ 193.962201][ T1144] ? kmsan_get_metadata+0xf1/0x160 [ 193.967532][ T1144] ? kmsan_get_metadata+0xf1/0x160 [ 193.972810][ T1144] ? kmsan_get_metadata+0xf1/0x160 [ 193.978184][ T1144] __msan_warning+0x1b/0x30 [ 193.982840][ T1144] irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 193.989429][ T1144] irqentry_exit+0x7b/0x760 [ 193.994105][ T1144] ? kmsan_internal_set_shadow_origin+0x7a/0x110 [ 194.000606][ T1144] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 194.006840][ T1144] sysvec_apic_timer_interrupt+0x52/0x90 [ 194.012647][ T1144] asm_sysvec_apic_timer_interrupt+0x1f/0x30 [ 194.018785][ T1144] RIP: 0010:__msan_metadata_ptr_for_load_4+0x30/0x40 [ 194.025630][ T1144] Code: 89 e5 53 48 83 ec 10 9c 8f 45 e8 0f 01 ca 48 8b 5d e8 be 04 00 00 00 31 d2 e8 8c 27 00 00 48 89 5d f0 ff 75 f0 9d 48 83 c4 10 <5b> 5d c3 cc cc cc cc cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 [ 194.045386][ T1144] RSP: 0018:ffff888107323a18 EFLAGS: 00000286 [ 194.051589][ T1144] RAX: ffff8881194bb01c RBX: 0000000000000282 RCX: 000000000057fba7 [ 194.059767][ T1144] RDX: ffff8881198bb01c RSI: 0000000000000001 RDI: ffff888119cbb01c [ 194.067857][ T1144] RBP: ffff888107323a20 R08: ffffea000000000f R09: 0000000000000003 [ 194.075944][ T1144] R10: 000000000000002e R11: 0000000000000000 R12: 0000000000000000 [ 194.084058][ T1144] R13: 0000000006a6013f R14: 0000000033c60102 R15: 0000000000000001 [ 194.092176][ T1144] ip_fast_csum+0x1e6/0x3f0 [ 194.096842][ T1144] nsim_dev_trap_report_work+0x8c0/0x1430 [ 194.102774][ T1144] ? __pfx_nsim_dev_trap_report_work+0x10/0x10 [ 194.109103][ T1144] process_scheduled_works+0xb65/0x1e40 [ 194.114879][ T1144] worker_thread+0xee4/0x1590 [ 194.119763][ T1144] kthread+0x53f/0x600 [ 194.124019][ T1144] ? __pfx_worker_thread+0x10/0x10 [ 194.129309][ T1144] ? __pfx_kthread+0x10/0x10 [ 194.134154][ T1144] ret_from_fork+0x20f/0x8d0 [ 194.138900][ T1144] ? __switch_to+0x573/0x7a0 [ 194.143622][ T1144] ? __pfx_kthread+0x10/0x10 [ 194.148398][ T1144] ret_from_fork_asm+0x1a/0x30 [ 194.153361][ T1144] [ 194.156907][ T1144] Kernel Offset: disabled [ 194.161285][ T1144] Rebooting in 86400 seconds..