last executing test programs:

kernel console output (not intermixed with test programs):

[  174.859290][ T5555] =====================================================
[  174.866581][ T5555] BUG: KMSAN: kernel-infoleak in irqentry_exit+0x48b/0xa00
[  174.873926][ T5555]  irqentry_exit+0x48b/0xa00
[  174.878688][ T5555]  exc_page_fault+0x7e/0xb0
[  174.883339][ T5555]  asm_exc_page_fault+0x2b/0x30
[  174.888314][ T5555] 
[  174.890819][ T5555] Local variable end_time.i.i created at:
[  174.896587][ T5555]  __x64_sys_poll+0x87/0x540
[  174.901281][ T5555]  x64_sys_call+0x3130/0x3ea0
[  174.906080][ T5555] 
[  174.908445][ T5555] Bytes 0-3 of 4 are uninitialized
[  174.913656][ T5555] Memory access of size 4 starts at ffff888129aafe88
[  174.920412][ T5555] Data copied to user address 00007f21bd1d4140
[  174.926640][ T5555] 
[  174.929025][ T5555] CPU: 1 UID: 0 PID: 5555 Comm: sshd-session Not tainted syzkaller #0 PREEMPT(lazy) 
[  174.938678][ T5555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  174.948807][ T5555] =====================================================
[  174.955792][ T5555] Disabling lock debugging due to kernel taint
[  174.961995][ T5555] Kernel panic - not syncing: kmsan.panic set ...
[  174.968495][ T5555] CPU: 1 UID: 0 PID: 5555 Comm: sshd-session Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  174.979657][ T5555] Tainted: [B]=BAD_PAGE
[  174.983884][ T5555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  174.994037][ T5555] Call Trace:
[  174.997512][ T5555]  <TASK>
[  175.000506][ T5555]  __dump_stack+0x26/0x30
[  175.004979][ T5555]  dump_stack_lvl+0x50/0x1c0
[  175.009778][ T5555]  ? dump_stack+0x12/0x25
[  175.014262][ T5555]  dump_stack+0x1e/0x25
[  175.018540][ T5555]  vpanic+0x7b4/0x1430
[  175.022754][ T5555]  panic+0x15d/0x160
[  175.026808][ T5555]  kmsan_report+0x31a/0x320
[  175.031476][ T5555]  ? kmsan_get_metadata+0xf1/0x160
[  175.036738][ T5555]  ? kmsan_internal_check_memory+0x1e8/0x240
[  175.042866][ T5555]  ? kmsan_copy_to_user+0xef/0x190
[  175.048130][ T5555]  ? irqentry_exit+0x48b/0xa00
[  175.053147][ T5555]  ? exc_page_fault+0x7e/0xb0
[  175.057984][ T5555]  ? asm_exc_page_fault+0x2b/0x30
[  175.063192][ T5555]  ? handle_mm_fault+0x2eb0/0x6ee0
[  175.068565][ T5555]  ? kmsan_get_metadata+0xf1/0x160
[  175.073852][ T5555]  ? kmsan_get_metadata+0xf1/0x160
[  175.079103][ T5555]  ? kmsan_internal_set_shadow_origin+0x7a/0x110
[  175.085691][ T5555]  kmsan_internal_check_memory+0x1e8/0x240
[  175.091657][ T5555]  kmsan_copy_to_user+0xef/0x190
[  175.096823][ T5555]  irqentry_exit+0x48b/0xa00
[  175.101580][ T5555]  exc_page_fault+0x7e/0xb0
[  175.106229][ T5555]  asm_exc_page_fault+0x2b/0x30
[  175.111204][ T5555] RIP: 0033:0x7f21bcab8d34
[  175.115704][ T5555] Code: 8d 34 19 49 39 d0 49 89 70 60 0f 95 c2 48 29 d8 48 83 c1 10 0f b6 d2 48 83 c8 01 48 c1 e2 02 48 09 da 48 83 ca 01 48 89 51 f8 <48> 89 46 08 48 89 cf 4c 89 e6 48 89 4c 24 08 e8 18 c7 ff ff 48 8b
[  175.135436][ T5555] RSP: 002b:00007ffe606d80f0 EFLAGS: 00010202
[  175.141742][ T5555] RAX: 000000000000cfe1 RBX: 0000000000000030 RCX: 000055fe98710000
[  175.149821][ T5555] RDX: 0000000000000031 RSI: 000055fe98710020 RDI: 0000000000000000
[  175.157901][ T5555] RBP: fffffffffffffed8 R08: 00007f21bcbf1ac0 R09: 0000000000000030
[  175.165967][ T5555] R10: 0000000000000004 R11: 000000000000005b R12: 0000000000000020
[  175.174033][ T5555] R13: 0000000000000030 R14: 0000000000000001 R15: 00007f21bcbf1b20
[  175.182138][ T5555]  </TASK>
[  175.185555][ T5555] Kernel Offset: disabled
[  175.189941][ T5555] Rebooting in 86400 seconds..