last executing test programs:

kernel console output (not intermixed with test programs):

[ T5531] Bytes 0-3 of 4 are uninitialized
[  165.508430][ T5531] Memory access of size 4 starts at ffff88812a53fe80
[  165.515200][ T5531] Data copied to user address 00007fee0a2a5ad4
[  165.521444][ T5531] 
[  165.523883][ T5531] CPU: 1 UID: 0 PID: 5531 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(lazy) 
[  165.533774][ T5531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  165.543989][ T5531] =====================================================
[  165.551101][ T5531] Disabling lock debugging due to kernel taint
[  165.557325][ T5531] Kernel panic - not syncing: kmsan.panic set ...
[  165.563867][ T5531] CPU: 1 UID: 0 PID: 5531 Comm: dhcpcd-run-hook Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  165.575344][ T5531] Tainted: [B]=BAD_PAGE
[  165.579557][ T5531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  165.589723][ T5531] Call Trace:
[  165.593080][ T5531]  <TASK>
[  165.596083][ T5531]  __dump_stack+0x26/0x30
[  165.600557][ T5531]  dump_stack_lvl+0x50/0x1c0
[  165.605271][ T5531]  ? dump_stack+0x12/0x25
[  165.609720][ T5531]  dump_stack+0x1e/0x25
[  165.613999][ T5531]  vpanic+0x7b8/0x1430
[  165.618285][ T5531]  panic+0x15d/0x160
[  165.622341][ T5531]  kmsan_report+0x31a/0x320
[  165.626966][ T5531]  ? kmsan_internal_check_memory+0x1e4/0x240
[  165.633103][ T5531]  ? kmsan_copy_to_user+0xef/0x190
[  165.638508][ T5531]  ? irqentry_exit+0x4f2/0xa40
[  165.643412][ T5531]  ? exc_page_fault+0x7e/0xb0
[  165.648240][ T5531]  ? asm_exc_page_fault+0x2b/0x30
[  165.653494][ T5531]  ? finish_task_switch+0x589/0xbc0
[  165.658840][ T5531]  ? __schedule+0x298a/0x8660
[  165.663685][ T5531]  ? kmsan_report+0x300/0x320
[  165.668572][ T5531]  ? kmsan_get_metadata+0xf1/0x160
[  165.673910][ T5531]  kmsan_internal_check_memory+0x1e4/0x240
[  165.679987][ T5531]  kmsan_copy_to_user+0xef/0x190
[  165.685323][ T5531]  irqentry_exit+0x4f2/0xa40
[  165.690076][ T5531]  exc_page_fault+0x7e/0xb0
[  165.694730][ T5531]  asm_exc_page_fault+0x2b/0x30
[  165.699709][ T5531] RIP: 0033:0x7fee0a396190
[  165.704285][ T5531] Code: 68 04 00 00 00 e9 90 fe ff ff ff 25 d2 8a 1a 00 68 27 00 00 00 e9 80 fe ff ff ff 25 ca 8a 1a 00 68 26 00 00 00 e9 70 fe ff ff <ff> 25 c2 8a 1a 00 68 25 00 00 00 e9 60 fe ff ff ff 25 ba 8a 1a 00
[  165.724175][ T5531] RSP: 002b:00007ffe3b063908 EFLAGS: 00010202
[  165.730366][ T5531] RAX: 00007ffe3b063ef0 RBX: 00007ffe3b063e10 RCX: 0000000000000000
[  165.738445][ T5531] RDX: 00007ffe3b063ed0 RSI: 0000000000000025 RDI: 00007fee0a5ee86a
[  165.746530][ T5531] RBP: 00007ffe3b063fc0 R08: 0000565010c7fea2 R09: 0000000000000001
[  165.754629][ T5531] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000201
[  165.762692][ T5531] R13: 00007ffe3b063ed0 R14: 0000000000000001 R15: 00007fee0a5ee86a
[  165.770791][ T5531]  </TASK>
[  165.774101][ T5531] Kernel Offset: disabled
[  165.778522][ T5531] Rebooting in 86400 seconds..