[ 160.712685][ T13] veth1_macvtap: left promiscuous mode [ 160.719237][ T13] veth0_macvtap: left promiscuous mode [ 160.726478][ T13] veth1_vlan: left promiscuous mode [ 160.732076][ T13] veth0_vlan: left promiscuous mode [ 161.452155][ T13] team0 (unregistering): Port device team_slave_1 removed [ 161.557843][ T13] team0 (unregistering): Port device team_slave_0 removed [ 161.967645][ T5224] 8021q: adding VLAN 0 to HW filter on device eth1 [ 162.812636][ T5224] 8021q: adding VLAN 0 to HW filter on device eth2 [ 163.656951][ T5224] 8021q: adding VLAN 0 to HW filter on device eth4 [ 164.385174][ T5224] 8021q: adding VLAN 0 to HW filter on device eth3 Warning: Permanently added '10.128.1.186' (ED25519) to the list of known hosts. 2026/04/25 15:36:04 ignoring optional flag "type"="gce" [ 187.986344][ T13] ===================================================== [ 187.993584][ T13] BUG: KMSAN: uninit-value in irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 188.002529][ T13] irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 188.009108][ T13] irqentry_exit+0x7b/0x760 [ 188.013766][ T13] sysvec_apic_timer_interrupt+0x52/0x90 [ 188.019535][ T13] asm_sysvec_apic_timer_interrupt+0x1f/0x30 [ 188.025653][ T13] __msan_metadata_ptr_for_load_4+0x14/0x40 [ 188.031710][ T13] ip_fast_csum+0x1e6/0x3f0 [ 188.036358][ T13] nsim_dev_trap_report_work+0x8c0/0x1430 [ 188.042228][ T13] process_scheduled_works+0xb65/0x1e40 [ 188.047919][ T13] worker_thread+0xee4/0x1590 [ 188.052740][ T13] kthread+0x53f/0x600 [ 188.056954][ T13] ret_from_fork+0x20f/0x8d0 [ 188.061669][ T13] ret_from_fork_asm+0x1a/0x30 [ 188.066574][ T13] [ 188.068967][ T13] Uninit was created at: [ 188.073391][ T13] __kmalloc_node_track_caller_noprof+0x4f6/0x1750 [ 188.080030][ T13] __alloc_skb+0x90d/0x1190 [ 188.084663][ T13] nsim_dev_trap_report_work+0x3f2/0x1430 [ 188.090528][ T13] process_scheduled_works+0xb65/0x1e40 [ 188.096215][ T13] worker_thread+0xee4/0x1590 [ 188.101026][ T13] kthread+0x53f/0x600 [ 188.105243][ T13] ret_from_fork+0x20f/0x8d0 [ 188.109958][ T13] ret_from_fork_asm+0x1a/0x30 [ 188.114866][ T13] [ 188.117287][ T13] CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full) [ 188.126690][ T13] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 188.136839][ T13] Workqueue: events_unbound nsim_dev_trap_report_work [ 188.143797][ T13] ===================================================== [ 188.150788][ T13] Disabling lock debugging due to kernel taint [ 188.157011][ T13] Kernel panic - not syncing: kmsan.panic set ... [ 188.163519][ T13] CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Tainted: G B syzkaller #0 PREEMPT(full) [ 188.174534][ T13] Tainted: [B]=BAD_PAGE [ 188.178774][ T13] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 188.188958][ T13] Workqueue: events_unbound nsim_dev_trap_report_work [ 188.195928][ T13] Call Trace: [ 188.199283][ T13] [ 188.202286][ T13] __dump_stack+0x26/0x30 [ 188.206758][ T13] dump_stack_lvl+0x50/0x1c0 [ 188.211489][ T13] ? dump_stack+0x12/0x25 [ 188.215956][ T13] dump_stack+0x1e/0x25 [ 188.220240][ T13] vpanic+0x7b4/0x1430 [ 188.224473][ T13] panic+0x15d/0x160 [ 188.228567][ T13] kmsan_report+0x31a/0x320 [ 188.233234][ T13] ? kmsan_get_metadata+0xf1/0x160 [ 188.238507][ T13] ? __msan_warning+0x1b/0x30 [ 188.243341][ T13] ? irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 188.250103][ T13] ? irqentry_exit+0x7b/0x760 [ 188.254922][ T13] ? sysvec_apic_timer_interrupt+0x52/0x90 [ 188.260867][ T13] ? asm_sysvec_apic_timer_interrupt+0x1f/0x30 [ 188.267177][ T13] ? __msan_metadata_ptr_for_load_4+0x14/0x40 [ 188.273406][ T13] ? ip_fast_csum+0x1e6/0x3f0 [ 188.278213][ T13] ? nsim_dev_trap_report_work+0x8c0/0x1430 [ 188.284262][ T13] ? process_scheduled_works+0xb65/0x1e40 [ 188.290125][ T13] ? worker_thread+0xee4/0x1590 [ 188.295116][ T13] ? kthread+0x53f/0x600 [ 188.299520][ T13] ? ret_from_fork+0x20f/0x8d0 [ 188.304443][ T13] ? ret_from_fork_asm+0x1a/0x30 [ 188.309541][ T13] ? chacha_permute+0x1057/0x1200 [ 188.314731][ T13] ? kmsan_get_metadata+0xf1/0x160 [ 188.320024][ T13] ? kmsan_internal_set_shadow_origin+0x7a/0x110 [ 188.326518][ T13] ? kmsan_get_metadata+0xf1/0x160 [ 188.331819][ T13] ? kmsan_get_metadata+0xf1/0x160 [ 188.337109][ T13] __msan_warning+0x1b/0x30 [ 188.341761][ T13] irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 [ 188.348349][ T13] irqentry_exit+0x7b/0x760 [ 188.352982][ T13] ? kmsan_internal_set_shadow_origin+0x7a/0x110 [ 188.359477][ T13] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 188.365704][ T13] sysvec_apic_timer_interrupt+0x52/0x90 [ 188.371481][ T13] asm_sysvec_apic_timer_interrupt+0x1f/0x30 [ 188.377616][ T13] RIP: 0010:__msan_metadata_ptr_for_load_4+0x14/0x40 [ 188.384463][ T13] Code: cc 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 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 [ 188.404240][ T13] RSP: 0018:ffff888100723a08 EFLAGS: 00000282 [ 188.410455][ T13] RAX: ffffffff86d68a98 RBX: ffff88811783d018 RCX: ffff888100718000 [ 188.418805][ T13] RDX: 0000000000000000 RSI: 000000007f92e945 RDI: ffff88811783d018 [ 188.426888][ T13] RBP: ffff888100723a20 R08: ffffea000000000f R09: 0000000000000003 [ 188.434965][ T13] R10: 000000000000002e R11: 0000000000000000 R12: 0000000000000000 [ 188.443029][ T13] R13: 00000000022e013c R14: 0000000000c00000 R15: 0000000000000001 [ 188.451136][ T13] ? ip_fast_csum+0x298/0x3f0 [ 188.455975][ T13] ip_fast_csum+0x1e6/0x3f0 [ 188.460630][ T13] nsim_dev_trap_report_work+0x8c0/0x1430 [ 188.466561][ T13] ? __pfx_nsim_dev_trap_report_work+0x10/0x10 [ 188.472893][ T13] process_scheduled_works+0xb65/0x1e40 [ 188.478646][ T13] worker_thread+0xee4/0x1590 [ 188.483507][ T13] kthread+0x53f/0x600 [ 188.487738][ T13] ? __pfx_worker_thread+0x10/0x10 [ 188.493015][ T13] ? __pfx_kthread+0x10/0x10 [ 188.497768][ T13] ret_from_fork+0x20f/0x8d0 [ 188.502500][ T13] ? __switch_to+0x573/0x7a0 [ 188.507254][ T13] ? __pfx_kthread+0x10/0x10 [ 188.512091][ T13] ret_from_fork_asm+0x1a/0x30 [ 188.517035][ T13] [ 188.520640][ T13] Kernel Offset: disabled [ 188.525011][ T13] Rebooting in 86400 seconds..