last executing test programs:

kernel console output (not intermixed with test programs):

 137.398965][ T5223] Bytes 1-3 of 4 are uninitialized
[  137.404102][ T5223] Memory access of size 4 starts at ffff88811c15be78
[  137.410814][ T5223] Data copied to user address 00007fac1a222680
[  137.417002][ T5223] 
[  137.419385][ T5223] CPU: 1 UID: 0 PID: 5223 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT(lazy) 
[  137.428487][ T5223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  137.438683][ T5223] =====================================================
[  137.445655][ T5223] Disabling lock debugging due to kernel taint
[  137.451860][ T5223] Kernel panic - not syncing: kmsan.panic set ...
[  137.460204][ T5223] CPU: 1 UID: 0 PID: 5223 Comm: dhcpcd Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  137.471233][ T5223] Tainted: [B]=BAD_PAGE
[  137.475431][ T5223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  137.485596][ T5223] Call Trace:
[  137.488919][ T5223]  <TASK>
[  137.491923][ T5223]  __dump_stack+0x26/0x30
[  137.496349][ T5223]  dump_stack_lvl+0x50/0x1c0
[  137.501013][ T5223]  ? dump_stack+0x12/0x25
[  137.505421][ T5223]  dump_stack+0x1e/0x25
[  137.509697][ T5223]  vpanic+0x7b8/0x1430
[  137.513906][ T5223]  panic+0x15d/0x160
[  137.518013][ T5223]  kmsan_report+0x31a/0x320
[  137.522665][ T5223]  ? kmsan_internal_check_memory+0x1e4/0x240
[  137.528793][ T5223]  ? kmsan_copy_to_user+0xef/0x190
[  137.533987][ T5223]  ? irqentry_exit+0x4a6/0xa40
[  137.538845][ T5223]  ? exc_page_fault+0x7e/0xb0
[  137.543895][ T5223]  ? asm_exc_page_fault+0x2b/0x30
[  137.549098][ T5223]  ? kmsan_get_shadow_origin_ptr+0x4a/0xb0
[  137.555071][ T5223]  ? handle_mm_fault+0x2e79/0x6e60
[  137.560397][ T5223]  ? kmsan_report+0x2f0/0x320
[  137.565228][ T5223]  ? kmsan_get_metadata+0xf1/0x160
[  137.570474][ T5223]  kmsan_internal_check_memory+0x1e4/0x240
[  137.576483][ T5223]  kmsan_copy_to_user+0xef/0x190
[  137.581552][ T5223]  irqentry_exit+0x4a6/0xa40
[  137.586302][ T5223]  ? kmsan_internal_set_shadow_origin+0x31/0x110
[  137.592836][ T5223]  exc_page_fault+0x7e/0xb0
[  137.597495][ T5223]  asm_exc_page_fault+0x2b/0x30
[  137.602482][ T5223] RIP: 0033:0x563614cd7400
[  137.607002][ T5223] Code: 67 ff ff ff 66 0f 1f 44 00 00 55 53 48 89 fb 48 83 ec 08 48 8b 07 48 8b 6f 10 48 8b 57 08 48 85 c0 74 7f 48 89 50 08 8b 73 38 <48> 89 02 83 fe ff 74 14 48 8b bd c0 02 00 00 e8 bc 24 fd ff 8b 7b
[  137.626924][ T5223] RSP: 002b:00007ffccfae0410 EFLAGS: 00010202
[  137.633304][ T5223] RAX: 000056363f40aa80 RBX: 000056363f409560 RCX: 00007fac1a2f2de8
[  137.641395][ T5223] RDX: 000056363f409ad0 RSI: 0000000000000011 RDI: 000056363f409560
[  137.649672][ T5223] RBP: 00007ffccfae0530 R08: 0000000000000000 R09: 0000000000000000
[  137.657756][ T5223] R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffccfae0444
[  137.665827][ T5223] R13: 0000563614ce2534 R14: 000056363f409560 R15: 000000000000158e
[  137.673955][ T5223]  </TASK>
[  137.677239][ T5223] Kernel Offset: disabled
[  137.681613][ T5223] Rebooting in 86400 seconds..