last executing test programs:

kernel console output (not intermixed with test programs):

[  179.131821][ T5555] =====================================================
[  179.139108][ T5555] BUG: KMSAN: kernel-infoleak in irqentry_exit+0x48b/0xa00
[  179.146460][ T5555]  irqentry_exit+0x48b/0xa00
[  179.151274][ T5555]  exc_page_fault+0x7e/0xb0
[  179.155925][ T5555]  asm_exc_page_fault+0x2b/0x30
[  179.160899][ T5555] 
[  179.163355][ T5555] Local variable end_time.i.i created at:
[  179.169145][ T5555]  __x64_sys_poll+0x87/0x540
[  179.173855][ T5555]  x64_sys_call+0x3130/0x3ea0
[  179.178658][ T5555] 
[  179.181024][ T5555] Bytes 0-3 of 4 are uninitialized
[  179.186207][ T5555] Memory access of size 4 starts at ffff88810d35be88
[  179.192961][ T5555] Data copied to user address 00007f4e409c8140
[  179.199171][ T5555] 
[  179.201567][ T5555] CPU: 0 UID: 0 PID: 5555 Comm: sshd-session Not tainted syzkaller #0 PREEMPT(lazy) 
[  179.211479][ T5555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  179.221790][ T5555] =====================================================
[  179.228784][ T5555] Disabling lock debugging due to kernel taint
[  179.234994][ T5555] Kernel panic - not syncing: kmsan.panic set ...
[  179.241495][ T5555] CPU: 0 UID: 0 PID: 5555 Comm: sshd-session Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  179.252646][ T5555] Tainted: [B]=BAD_PAGE
[  179.256852][ T5555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  179.266988][ T5555] Call Trace:
[  179.270445][ T5555]  <TASK>
[  179.273433][ T5555]  __dump_stack+0x26/0x30
[  179.277907][ T5555]  dump_stack_lvl+0x50/0x1c0
[  179.283001][ T5555]  ? dump_stack+0x12/0x25
[  179.287501][ T5555]  dump_stack+0x1e/0x25
[  179.291805][ T5555]  vpanic+0x7b4/0x1430
[  179.296052][ T5555]  panic+0x15d/0x160
[  179.300124][ T5555]  kmsan_report+0x31a/0x320
[  179.304766][ T5555]  ? kmsan_get_metadata+0xf1/0x160
[  179.310042][ T5555]  ? kmsan_internal_check_memory+0x1e8/0x240
[  179.316153][ T5555]  ? kmsan_copy_to_user+0xef/0x190
[  179.321412][ T5555]  ? irqentry_exit+0x48b/0xa00
[  179.326319][ T5555]  ? exc_page_fault+0x7e/0xb0
[  179.331130][ T5555]  ? asm_exc_page_fault+0x2b/0x30
[  179.336273][ T5555]  ? handle_mm_fault+0x2eb0/0x6ee0
[  179.341570][ T5555]  ? kmsan_get_metadata+0xf1/0x160
[  179.346834][ T5555]  ? kmsan_internal_set_shadow_origin+0x7a/0x110
[  179.353312][ T5555]  kmsan_internal_check_memory+0x1e8/0x240
[  179.359285][ T5555]  kmsan_copy_to_user+0xef/0x190
[  179.364368][ T5555]  irqentry_exit+0x48b/0xa00
[  179.369130][ T5555]  exc_page_fault+0x7e/0xb0
[  179.373773][ T5555]  asm_exc_page_fault+0x2b/0x30
[  179.378822][ T5555] RIP: 0033:0x7f4e40607fa9
[  179.383325][ T5555] Code: 48 8d 3c 10 48 83 c1 01 48 89 ca e8 11 21 ec ff 4c 89 ab b0 00 00 00 48 8b bb a8 00 00 00 89 e9 b8 01 00 00 00 83 e1 07 d3 e0 <42> 08 04 27 48 8b bb b8 00 00 00 e8 67 16 00 00 b8 01 00 00 00 48
[  179.403133][ T5555] RSP: 002b:00007fff201221b0 EFLAGS: 00010202
[  179.409318][ T5555] RAX: 0000000000000002 RBX: 0000561b99434360 RCX: 0000000000000001
[  179.417495][ T5555] RDX: 0000000000000002 RSI: 0000000000000001 RDI: 0000561b99433a30
[  179.425676][ T5555] RBP: 0000000000000001 R08: 00007fff20122214 R09: 0000000000000000
[  179.433886][ T5555] R10: 0000000000000004 R11: 000000000000005b R12: 0000000000000000
[  179.442019][ T5555] R13: 0000000000000000 R14: 00007f4e4092b320 R15: 00007f4e4092b680
[  179.450220][ T5555]  </TASK>
[  179.453764][ T5555] Kernel Offset: disabled
[  179.458156][ T5555] Rebooting in 86400 seconds..