last executing test programs:

kernel console output (not intermixed with test programs):

[ T5541] Bytes 0-3 of 4 are uninitialized
[  165.153251][ T5541] Memory access of size 4 starts at ffff888107e1be88
[  165.160098][ T5541] Data copied to user address 00007f28b9cd0ac0
[  165.166322][ T5541] 
[  165.168771][ T5541] CPU: 1 UID: 0 PID: 5541 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(lazy) 
[  165.178642][ T5541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  165.188931][ T5541] =====================================================
[  165.195992][ T5541] Disabling lock debugging due to kernel taint
[  165.202232][ T5541] Kernel panic - not syncing: kmsan.panic set ...
[  165.208767][ T5541] CPU: 1 UID: 0 PID: 5541 Comm: dhcpcd-run-hook Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  165.220225][ T5541] Tainted: [B]=BAD_PAGE
[  165.224452][ T5541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  165.234624][ T5541] Call Trace:
[  165.237985][ T5541]  <TASK>
[  165.240981][ T5541]  __dump_stack+0x26/0x30
[  165.245441][ T5541]  dump_stack_lvl+0x50/0x1c0
[  165.250154][ T5541]  ? dump_stack+0x12/0x25
[  165.254608][ T5541]  dump_stack+0x1e/0x25
[  165.258890][ T5541]  vpanic+0x7b4/0x1430
[  165.263112][ T5541]  panic+0x15d/0x160
[  165.267167][ T5541]  kmsan_report+0x31a/0x320
[  165.271821][ T5541]  ? kmsan_get_metadata+0xf1/0x160
[  165.277079][ T5541]  ? kmsan_internal_check_memory+0x1e8/0x240
[  165.283196][ T5541]  ? kmsan_copy_to_user+0xef/0x190
[  165.288479][ T5541]  ? irqentry_exit+0x48b/0xa00
[  165.293475][ T5541]  ? exc_page_fault+0x7e/0xb0
[  165.298321][ T5541]  ? asm_exc_page_fault+0x2b/0x30
[  165.303549][ T5541]  ? handle_mm_fault+0x2eb0/0x6ee0
[  165.308890][ T5541]  ? kmsan_get_metadata+0xf1/0x160
[  165.314259][ T5541]  ? kmsan_get_metadata+0xf1/0x160
[  165.319542][ T5541]  ? kmsan_internal_set_shadow_origin+0x7a/0x110
[  165.326079][ T5541]  kmsan_internal_check_memory+0x1e8/0x240
[  165.332062][ T5541]  kmsan_copy_to_user+0xef/0x190
[  165.337166][ T5541]  irqentry_exit+0x48b/0xa00
[  165.341926][ T5541]  exc_page_fault+0x7e/0xb0
[  165.346568][ T5541]  asm_exc_page_fault+0x2b/0x30
[  165.351550][ T5541] RIP: 0033:0x7f28b9ea49d0
[  165.356072][ T5541] Code: 88 fe ff 48 85 c0 74 0a 48 83 c4 08 c3 0f 1f 44 00 00 48 8b 15 19 54 0c 00 64 83 3a 22 75 e9 e8 f6 f3 ff ff 66 0f 1f 44 00 00 <55> 48 89 fd 53 89 f3 48 83 ec 08 e8 90 35 f3 ff 8b 45 40 85 c0 75
[  165.375798][ T5541] RSP: 002b:00007ffc4ee0f798 EFLAGS: 00010202
[  165.381986][ T5541] RAX: 000055ccc4168910 RBX: 000055ccc417de80 RCX: 000055c998dbcc00
[  165.390134][ T5541] RDX: 00007f28ba03a460 RSI: 0000000000000001 RDI: 00007ffc4ee10090
[  165.398211][ T5541] RBP: 0000000000000000 R08: 0000000000000020 R09: 0000000000000000
[  165.406264][ T5541] R10: 00007f28b9f10fe0 R11: 00007f28b9f118e0 R12: 000055ccc4168910
[  165.414325][ T5541] R13: 000055ccc4168c30 R14: 0000000000000002 R15: 0000000000000000
[  165.422438][ T5541]  </TASK>
[  165.425815][ T5541] Kernel Offset: disabled
[  165.430219][ T5541] Rebooting in 86400 seconds..