last executing test programs:

kernel console output (not intermixed with test programs):

[  142.918775][ T5562] =====================================================
[  142.925989][ T5562] BUG: KMSAN: kernel-infoleak in irqentry_exit+0x48b/0xa00
[  142.933280][ T5562]  irqentry_exit+0x48b/0xa00
[  142.937957][ T5562]  exc_page_fault+0x7e/0xb0
[  142.942538][ T5562]  asm_exc_page_fault+0x2b/0x30
[  142.947487][ T5562] 
[  142.949830][ T5562] Local variable end_time.i.i created at:
[  142.955566][ T5562]  __x64_sys_poll+0x87/0x540
[  142.960208][ T5562]  x64_sys_call+0x3130/0x3ea0
[  142.965189][ T5562] 
[  142.967536][ T5562] Bytes 0-3 of 4 are uninitialized
[  142.972690][ T5562] Memory access of size 4 starts at ffff888119e3be88
[  142.979405][ T5562] Data copied to user address 00007fcc60203140
[  142.985587][ T5562] 
[  142.987960][ T5562] CPU: 1 UID: 0 PID: 5562 Comm: sshd-session Not tainted syzkaller #0 PREEMPT(lazy) 
[  142.997492][ T5562] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  143.007690][ T5562] =====================================================
[  143.014667][ T5562] Disabling lock debugging due to kernel taint
[  143.020853][ T5562] Kernel panic - not syncing: kmsan.panic set ...
[  143.027323][ T5562] CPU: 1 UID: 0 PID: 5562 Comm: sshd-session Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  143.038446][ T5562] Tainted: [B]=BAD_PAGE
[  143.042677][ T5562] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  143.052891][ T5562] Call Trace:
[  143.056216][ T5562]  <TASK>
[  143.059177][ T5562]  __dump_stack+0x26/0x30
[  143.063606][ T5562]  dump_stack_lvl+0x50/0x1c0
[  143.068266][ T5562]  ? dump_stack+0x12/0x25
[  143.072665][ T5562]  dump_stack+0x1e/0x25
[  143.076886][ T5562]  vpanic+0x7b4/0x1430
[  143.081058][ T5562]  panic+0x15d/0x160
[  143.085055][ T5562]  kmsan_report+0x31a/0x320
[  143.089644][ T5562]  ? finish_task_switch+0x464/0xbc0
[  143.094995][ T5562]  ? kmsan_internal_check_memory+0x1e8/0x240
[  143.101053][ T5562]  ? kmsan_copy_to_user+0xef/0x190
[  143.106247][ T5562]  ? irqentry_exit+0x48b/0xa00
[  143.111102][ T5562]  ? exc_page_fault+0x7e/0xb0
[  143.115872][ T5562]  ? asm_exc_page_fault+0x2b/0x30
[  143.120984][ T5562]  ? __schedule+0x2930/0x8750
[  143.125853][ T5562]  ? kmsan_get_metadata+0xf1/0x160
[  143.131063][ T5562]  ? kmsan_get_metadata+0xf1/0x160
[  143.136262][ T5562]  ? kmsan_get_metadata+0xf1/0x160
[  143.141495][ T5562]  kmsan_internal_check_memory+0x1e8/0x240
[  143.147410][ T5562]  kmsan_copy_to_user+0xef/0x190
[  143.152436][ T5562]  irqentry_exit+0x48b/0xa00
[  143.157131][ T5562]  exc_page_fault+0x7e/0xb0
[  143.161717][ T5562]  asm_exc_page_fault+0x2b/0x30
[  143.166637][ T5562] RIP: 0033:0x7fcc5fe09995
[  143.171103][ T5562] Code: 0f b1 0f 75 f3 48 89 0a b8 01 00 00 00 c3 0f 1f 80 00 00 00 00 48 8b 07 48 89 06 b8 01 00 00 00 c3 0f 1f 40 00 b8 01 00 00 00 <48> 89 37 c3 0f 1f 80 00 00 00 00 8b 07 89 06 b8 01 00 00 00 c3 66
[  143.190776][ T5562] RSP: 002b:00007ffd73bbd038 EFLAGS: 00010206
[  143.196916][ T5562] RAX: 0000000000000001 RBX: 000055791cba8a70 RCX: 0000000000000001
[  143.204929][ T5562] RDX: 000055791cb55af0 RSI: c38e17697d51a0da RDI: 00007fcc601e46c0
[  143.212963][ T5562] RBP: 0000000000000000 R08: 00007fcc5fbf1ac0 R09: 0000000000000070
[  143.220977][ T5562] R10: 0000000000000004 R11: 000000000000005b R12: 0000000000000000
[  143.228990][ T5562] R13: 000055791cb55a90 R14: 000055791cb55b30 R15: 0000000000003680
[  143.237035][ T5562]  </TASK>
[  143.240450][ T5562] Kernel Offset: disabled
[  143.244821][ T5562] Rebooting in 86400 seconds..