last executing test programs:

kernel console output (not intermixed with test programs):

[  169.347030][ T5554] =====================================================
[  169.354364][ T5554] BUG: KMSAN: kernel-infoleak in irqentry_exit+0x48b/0xa00
[  169.361719][ T5554]  irqentry_exit+0x48b/0xa00
[  169.366456][ T5554]  exc_page_fault+0x7e/0xb0
[  169.371098][ T5554]  asm_exc_page_fault+0x2b/0x30
[  169.376065][ T5554] 
[  169.378458][ T5554] Local variable end_time.i.i created at:
[  169.384243][ T5554]  __x64_sys_poll+0x87/0x540
[  169.388934][ T5554]  x64_sys_call+0x3130/0x3ea0
[  169.393732][ T5554] 
[  169.396123][ T5554] Bytes 0-3 of 4 are uninitialized
[  169.401309][ T5554] Memory access of size 4 starts at ffff88812b223e88
[  169.408067][ T5554] Data copied to user address 00007f8d4781c140
[  169.414299][ T5554] 
[  169.416733][ T5554] CPU: 0 UID: 0 PID: 5554 Comm: sshd-session Not tainted syzkaller #0 PREEMPT(lazy) 
[  169.426311][ T5554] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  169.436453][ T5554] =====================================================
[  169.443455][ T5554] Disabling lock debugging due to kernel taint
[  169.449668][ T5554] Kernel panic - not syncing: kmsan.panic set ...
[  169.456192][ T5554] CPU: 0 UID: 0 PID: 5554 Comm: sshd-session Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  169.467401][ T5554] Tainted: [B]=BAD_PAGE
[  169.471622][ T5554] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  169.481791][ T5554] Call Trace:
[  169.485137][ T5554]  <TASK>
[  169.488131][ T5554]  __dump_stack+0x26/0x30
[  169.492588][ T5554]  dump_stack_lvl+0x50/0x1c0
[  169.497305][ T5554]  ? dump_stack+0x12/0x25
[  169.501762][ T5554]  dump_stack+0x1e/0x25
[  169.506028][ T5554]  vpanic+0x7b4/0x1430
[  169.510242][ T5554]  panic+0x15d/0x160
[  169.514323][ T5554]  kmsan_report+0x31a/0x320
[  169.518993][ T5554]  ? kmsan_get_metadata+0xf1/0x160
[  169.524240][ T5554]  ? kmsan_internal_check_memory+0x1e8/0x240
[  169.530358][ T5554]  ? kmsan_copy_to_user+0xef/0x190
[  169.535691][ T5554]  ? irqentry_exit+0x48b/0xa00
[  169.540604][ T5554]  ? exc_page_fault+0x7e/0xb0
[  169.545428][ T5554]  ? asm_exc_page_fault+0x2b/0x30
[  169.550575][ T5554]  ? handle_mm_fault+0x2eb0/0x6ee0
[  169.555860][ T5554]  ? kmsan_get_metadata+0xf1/0x160
[  169.561129][ T5554]  ? kmsan_get_metadata+0xf1/0x160
[  169.566386][ T5554]  ? kmsan_internal_set_shadow_origin+0x7a/0x110
[  169.572856][ T5554]  kmsan_internal_check_memory+0x1e8/0x240
[  169.578815][ T5554]  kmsan_copy_to_user+0xef/0x190
[  169.583899][ T5554]  irqentry_exit+0x48b/0xa00
[  169.588661][ T5554]  exc_page_fault+0x7e/0xb0
[  169.593313][ T5554]  asm_exc_page_fault+0x2b/0x30
[  169.598286][ T5554] RIP: 0033:0x561057cdf658
[  169.602791][ T5554] Code: c7 f3 48 ab c7 07 00 00 00 00 bf 21 00 00 00 0f 1f 00 8d 47 df 4c 89 d2 66 2e 0f 1f 84 00 00 00 00 00 83 f8 1e 76 10 48 63 c8 <41> 8b 31 0f af 32 01 b4 8c 20 01 00 00 83 c0 01 48 83 c2 04 39 f8
[  169.622520][ T5554] RSP: 002b:00007ffedf9ba430 EFLAGS: 00010202
[  169.628711][ T5554] RAX: 000000000000001f RBX: 00007ffedf9ba6a0 RCX: 000000000000001f
[  169.636777][ T5554] RDX: 00007ffedf9ba918 RSI: 00007ffedf9ba820 RDI: 0000000000000021
[  169.644949][ T5554] RBP: 00007ffedf9babc0 R08: 00007ffedf9ba4c0 R09: 0000561057d39100
[  169.653010][ T5554] R10: 00007ffedf9ba89c R11: 00007ffedf9ba820 R12: 0000561088b45e60
[  169.661080][ T5554] R13: 00007ffedf9ba820 R14: 00007ffedf9ba7a0 R15: 00007ffedf9ba720
[  169.669188][ T5554]  </TASK>
[  169.672572][ T5554] Kernel Offset: disabled
[  169.676979][ T5554] Rebooting in 86400 seconds..