last executing test programs:

kernel console output (not intermixed with test programs):

[  141.120152][ T5563] =====================================================
[  141.127317][ T5563] BUG: KMSAN: kernel-infoleak in irqentry_exit+0x48b/0xa00
[  141.134613][ T5563]  irqentry_exit+0x48b/0xa00
[  141.139294][ T5563]  exc_page_fault+0x7e/0xb0
[  141.143880][ T5563]  asm_exc_page_fault+0x2b/0x30
[  141.148796][ T5563] 
[  141.151135][ T5563] Local variable end_time.i.i created at:
[  141.156872][ T5563]  __x64_sys_poll+0x87/0x540
[  141.161516][ T5563]  x64_sys_call+0x3130/0x3ea0
[  141.166271][ T5563] 
[  141.168609][ T5563] Bytes 0-3 of 4 are uninitialized
[  141.173742][ T5563] Memory access of size 4 starts at ffff8881191a7e88
[  141.180455][ T5563] Data copied to user address 00007fc6ecfeb140
[  141.186671][ T5563] 
[  141.189048][ T5563] CPU: 1 UID: 0 PID: 5563 Comm: sshd-session Not tainted syzkaller #0 PREEMPT(lazy) 
[  141.198571][ T5563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  141.208676][ T5563] =====================================================
[  141.215639][ T5563] Disabling lock debugging due to kernel taint
[  141.221826][ T5563] Kernel panic - not syncing: kmsan.panic set ...
[  141.228293][ T5563] CPU: 1 UID: 0 PID: 5563 Comm: sshd-session Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  141.239398][ T5563] Tainted: [B]=BAD_PAGE
[  141.243601][ T5563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  141.253715][ T5563] Call Trace:
[  141.257024][ T5563]  <TASK>
[  141.259984][ T5563]  __dump_stack+0x26/0x30
[  141.264396][ T5563]  dump_stack_lvl+0x50/0x1c0
[  141.269054][ T5563]  ? dump_stack+0x12/0x25
[  141.273451][ T5563]  dump_stack+0x1e/0x25
[  141.277670][ T5563]  vpanic+0x7b4/0x1430
[  141.281830][ T5563]  panic+0x15d/0x160
[  141.285830][ T5563]  kmsan_report+0x31a/0x320
[  141.290431][ T5563]  ? kmsan_get_metadata+0xf1/0x160
[  141.295626][ T5563]  ? kmsan_internal_check_memory+0x1e8/0x240
[  141.301690][ T5563]  ? kmsan_copy_to_user+0xef/0x190
[  141.306885][ T5563]  ? irqentry_exit+0x48b/0xa00
[  141.311743][ T5563]  ? exc_page_fault+0x7e/0xb0
[  141.316519][ T5563]  ? asm_exc_page_fault+0x2b/0x30
[  141.321612][ T5563]  ? handle_mm_fault+0x2eb0/0x6ee0
[  141.326835][ T5563]  ? kmsan_get_metadata+0xf1/0x160
[  141.332045][ T5563]  ? kmsan_get_metadata+0xf1/0x160
[  141.337244][ T5563]  ? kmsan_internal_set_shadow_origin+0x7a/0x110
[  141.343663][ T5563]  kmsan_internal_check_memory+0x1e8/0x240
[  141.349566][ T5563]  kmsan_copy_to_user+0xef/0x190
[  141.354590][ T5563]  irqentry_exit+0x48b/0xa00
[  141.359307][ T5563]  exc_page_fault+0x7e/0xb0
[  141.363905][ T5563]  asm_exc_page_fault+0x2b/0x30
[  141.368833][ T5563] RIP: 0033:0x7fc6ec8ba038
[  141.373311][ T5563] Code: 71 13 00 73 1d 48 3d 00 00 00 02 77 15 48 83 e0 f8 48 89 05 6a 71 13 00 48 01 c0 48 89 05 50 71 13 00 48 89 ef e8 48 b4 ff ff <64> 45 89 2c 24 48 83 c4 28 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f
[  141.392988][ T5563] RSP: 002b:00007ffe2446d6f0 EFLAGS: 00010202
[  141.399116][ T5563] RAX: 0000000000000001 RBX: c01fd49b3f8f61cc RCX: 000000055c3be292
[  141.407141][ T5563] RDX: 000055c3be23e010 RSI: 0000000000000000 RDI: 000055c3be292f80
[  141.415156][ T5563] RBP: 000055c3be292f70 R08: 0000000000000030 R09: 0000000000000000
[  141.423171][ T5563] R10: 0000000000000004 R11: 000000000000005b R12: fffffffffffffea0
[  141.431190][ T5563] R13: 0000000000000000 R14: 0000000000000001 R15: 00007fc6ec9f1ac0
[  141.439229][ T5563]  </TASK>
[  141.442692][ T5563] Kernel Offset: disabled
[  141.447063][ T5563] Rebooting in 86400 seconds..