Warning: Permanently added '10.128.1.2' (ED25519) to the list of known hosts. [ 242.717338][ T34] ===================================================== [ 242.724616][ T34] BUG: KMSAN: uninit-value in irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 242.733583][ T34] irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 242.740179][ T34] irqentry_exit+0x7b/0x760 [ 242.744845][ T34] sysvec_apic_timer_interrupt+0x52/0x90 [ 242.750638][ T34] asm_sysvec_apic_timer_interrupt+0x1f/0x30 [ 242.756782][ T34] ip_fast_csum+0x2df/0x3f0 [ 242.761605][ T34] nsim_dev_trap_report_work+0x8c0/0x1430 [ 242.767507][ T34] process_scheduled_works+0xb65/0x1e40 [ 242.773232][ T34] worker_thread+0xee4/0x1590 [ 242.778105][ T34] kthread+0x53f/0x600 [ 242.782302][ T34] ret_from_fork+0x20f/0x8d0 [ 242.787055][ T34] ret_from_fork_asm+0x1a/0x30 [ 242.792007][ T34] [ 242.794401][ T34] Uninit was created at: [ 242.798856][ T34] __kmalloc_node_track_caller_noprof+0x4f6/0x1750 [ 242.805526][ T34] __alloc_skb+0x90d/0x1190 [ 242.810194][ T34] nsim_dev_trap_report_work+0x3f2/0x1430 [ 242.816126][ T34] process_scheduled_works+0xb65/0x1e40 [ 242.821844][ T34] worker_thread+0xee4/0x1590 [ 242.826697][ T34] kthread+0x53f/0x600 [ 242.830885][ T34] ret_from_fork+0x20f/0x8d0 [ 242.835628][ T34] ret_from_fork_asm+0x1a/0x30 [ 242.840561][ T34] [ 242.842989][ T34] CPU: 1 UID: 0 PID: 34 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT(full) [ 242.852428][ T34] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 242.862705][ T34] Workqueue: events_unbound nsim_dev_trap_report_work [ 242.869698][ T34] ===================================================== [ 242.876717][ T34] Disabling lock debugging due to kernel taint [ 242.882978][ T34] Kernel panic - not syncing: kmsan.panic set ... [ 242.889525][ T34] CPU: 1 UID: 0 PID: 34 Comm: kworker/u8:2 Tainted: G B syzkaller #0 PREEMPT(full) [ 242.900830][ T34] Tainted: [B]=BAD_PAGE [ 242.905130][ T34] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 242.915328][ T34] Workqueue: events_unbound nsim_dev_trap_report_work [ 242.922330][ T34] Call Trace: [ 242.925706][ T34] [ 242.928743][ T34] __dump_stack+0x26/0x30 [ 242.933237][ T34] dump_stack_lvl+0x50/0x1c0 [ 242.938001][ T34] ? dump_stack+0x12/0x25 [ 242.942501][ T34] dump_stack+0x1e/0x25 [ 242.946913][ T34] vpanic+0x7b4/0x1430 [ 242.951181][ T34] panic+0x15d/0x160 [ 242.955289][ T34] kmsan_report+0x31a/0x320 [ 242.959982][ T34] ? __msan_warning+0x1b/0x30 [ 242.964824][ T34] ? irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 242.971600][ T34] ? irqentry_exit+0x7b/0x760 [ 242.976425][ T34] ? sysvec_apic_timer_interrupt+0x52/0x90 [ 242.982389][ T34] ? asm_sysvec_apic_timer_interrupt+0x1f/0x30 [ 242.988702][ T34] ? ip_fast_csum+0x2df/0x3f0 [ 242.993518][ T34] ? nsim_dev_trap_report_work+0x8c0/0x1430 [ 242.999586][ T34] ? process_scheduled_works+0xb65/0x1e40 [ 243.005476][ T34] ? worker_thread+0xee4/0x1590 [ 243.010501][ T34] ? kthread+0x53f/0x600 [ 243.014898][ T34] ? ret_from_fork+0x20f/0x8d0 [ 243.019816][ T34] ? ret_from_fork_asm+0x1a/0x30 [ 243.024970][ T34] ? kmsan_get_metadata+0xf1/0x160 [ 243.030269][ T34] ? kmsan_internal_set_shadow_origin+0x7a/0x110 [ 243.036814][ T34] ? kmsan_get_metadata+0xf1/0x160 [ 243.042114][ T34] ? kmsan_get_metadata+0xf1/0x160 [ 243.047417][ T34] ? kmsan_get_metadata+0xf1/0x160 [ 243.052726][ T34] __msan_warning+0x1b/0x30 [ 243.057397][ T34] irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 243.063988][ T34] irqentry_exit+0x7b/0x760 [ 243.068649][ T34] ? kmsan_internal_set_shadow_origin+0x7a/0x110 [ 243.075161][ T34] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 243.081422][ T34] sysvec_apic_timer_interrupt+0x52/0x90 [ 243.087256][ T34] asm_sysvec_apic_timer_interrupt+0x1f/0x30 [ 243.093593][ T34] RIP: 0010:ip_fast_csum+0x2df/0x3f0 [ 243.099043][ T34] Code: 55 d4 03 55 c0 4c 8b 6d a8 41 0f b7 c5 0f b7 ca 41 c1 ed 10 41 09 c5 c1 ea 10 01 ca 89 55 d4 45 09 fd 45 89 e7 48 83 45 c8 04 <4c> 8b 75 98 4c 8b 65 b0 8b 5d c4 41 c7 06 00 00 00 00 41 c7 46 08 [ 243.118834][ T34] RSP: 0018:ffff88810290ba30 EFLAGS: 00000292 [ 243.125061][ T34] RAX: 000000000000ff01 RBX: ffff88801b875020 RCX: 000000000000b347 [ 243.133152][ T34] RDX: 0000000000013063 RSI: 000000007d1cb347 RDI: 0000000033c60102 [ 243.141264][ T34] RBP: ffff88810290baa8 R08: ffffea000000000f R09: 0000000000000003 [ 243.149445][ T34] R10: 000000000000002e R11: 0000000000000000 R12: 0000000001c40151 [ 243.157532][ T34] R13: 000000000000ffff R14: 0000000033c60102 R15: 0000000001c40151 [ 243.165683][ T34] nsim_dev_trap_report_work+0x8c0/0x1430 [ 243.171753][ T34] ? __pfx_nsim_dev_trap_report_work+0x10/0x10 [ 243.178104][ T34] process_scheduled_works+0xb65/0x1e40 [ 243.183915][ T34] worker_thread+0xee4/0x1590 [ 243.188920][ T34] kthread+0x53f/0x600 [ 243.193147][ T34] ? __pfx_worker_thread+0x10/0x10 [ 243.198458][ T34] ? __pfx_kthread+0x10/0x10 [ 243.203197][ T34] ret_from_fork+0x20f/0x8d0 [ 243.207965][ T34] ? __switch_to+0x573/0x7a0 [ 243.212699][ T34] ? __pfx_kthread+0x10/0x10 [ 243.217429][ T34] ret_from_fork_asm+0x1a/0x30 [ 243.222407][ T34] [ 243.225926][ T34] Kernel Offset: disabled [ 243.230309][ T34] Rebooting in 86400 seconds..