last executing test programs:

kernel console output (not intermixed with test programs):

[  171.788171][ T5557] =====================================================
[  171.795411][ T5557] BUG: KMSAN: kernel-infoleak in irqentry_exit+0x48b/0xa00
[  171.802747][ T5557]  irqentry_exit+0x48b/0xa00
[  171.807472][ T5557]  exc_page_fault+0x7e/0xb0
[  171.812095][ T5557]  asm_exc_page_fault+0x2b/0x30
[  171.817044][ T5557] 
[  171.819435][ T5557] Local variable end_time.i.i created at:
[  171.825202][ T5557]  __x64_sys_poll+0x87/0x540
[  171.829879][ T5557]  x64_sys_call+0x3130/0x3ea0
[  171.834699][ T5557] 
[  171.837088][ T5557] Bytes 0-3 of 4 are uninitialized
[  171.842259][ T5557] Memory access of size 4 starts at ffff888123997e88
[  171.849048][ T5557] Data copied to user address 00007fc970146140
[  171.855277][ T5557] 
[  171.857707][ T5557] CPU: 0 UID: 0 PID: 5557 Comm: sshd-session Not tainted syzkaller #0 PREEMPT(lazy) 
[  171.867293][ T5557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  171.877421][ T5557] =====================================================
[  171.884426][ T5557] Disabling lock debugging due to kernel taint
[  171.890653][ T5557] Kernel panic - not syncing: kmsan.panic set ...
[  171.897156][ T5557] CPU: 0 UID: 0 PID: 5557 Comm: sshd-session Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  171.908300][ T5557] Tainted: [B]=BAD_PAGE
[  171.912504][ T5557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  171.922645][ T5557] Call Trace:
[  171.925998][ T5557]  <TASK>
[  171.929037][ T5557]  __dump_stack+0x26/0x30
[  171.933487][ T5557]  dump_stack_lvl+0x50/0x1c0
[  171.938181][ T5557]  ? dump_stack+0x12/0x25
[  171.942623][ T5557]  dump_stack+0x1e/0x25
[  171.946889][ T5557]  vpanic+0x7b4/0x1430
[  171.951093][ T5557]  panic+0x15d/0x160
[  171.955158][ T5557]  kmsan_report+0x31a/0x320
[  171.959804][ T5557]  ? kmsan_get_metadata+0xf1/0x160
[  171.965067][ T5557]  ? kmsan_internal_check_memory+0x1e8/0x240
[  171.971175][ T5557]  ? kmsan_copy_to_user+0xef/0x190
[  171.976409][ T5557]  ? irqentry_exit+0x48b/0xa00
[  171.981300][ T5557]  ? exc_page_fault+0x7e/0xb0
[  171.986099][ T5557]  ? asm_exc_page_fault+0x2b/0x30
[  171.991228][ T5557]  ? handle_mm_fault+0x2eb0/0x6ee0
[  171.996500][ T5557]  ? kmsan_get_metadata+0xf1/0x160
[  172.001753][ T5557]  ? kmsan_get_metadata+0xf1/0x160
[  172.006994][ T5557]  ? kmsan_internal_set_shadow_origin+0x7a/0x110
[  172.013472][ T5557]  kmsan_internal_check_memory+0x1e8/0x240
[  172.019429][ T5557]  kmsan_copy_to_user+0xef/0x190
[  172.024516][ T5557]  irqentry_exit+0x48b/0xa00
[  172.029268][ T5557]  exc_page_fault+0x7e/0xb0
[  172.033913][ T5557]  asm_exc_page_fault+0x2b/0x30
[  172.038884][ T5557] RIP: 0033:0x7fc96fe09995
[  172.043389][ T5557] 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
[  172.063104][ T5557] RSP: 002b:00007ffd1ed58fe8 EFLAGS: 00010206
[  172.069264][ T5557] RAX: 0000000000000001 RBX: 0000561af18b70c0 RCX: 0000000000000001
[  172.077309][ T5557] RDX: 0000561af1866af0 RSI: 8e2cd29875cbb056 RDI: 00007fc96f9845c0
[  172.085381][ T5557] RBP: 0000000000000000 R08: 00007fc96fbd7ac0 R09: 0000000000000070
[  172.093426][ T5557] R10: 0000000000000004 R11: 000000000000005b R12: 0000000000000000
[  172.101473][ T5557] R13: 0000561af1866a90 R14: 0000561af1866b30 R15: 0000000000001580
[  172.109549][ T5557]  </TASK>
[  172.113380][ T5557] Kernel Offset: disabled
[  172.117780][ T5557] Rebooting in 86400 seconds..