last executing test programs:

kernel console output (not intermixed with test programs):

537] Bytes 0-3 of 4 are uninitialized
[  135.497847][ T5537] Memory access of size 4 starts at ffff888128d43e88
[  135.504553][ T5537] Data copied to user address 00007f7fd4aa5ac0
[  135.510732][ T5537] 
[  135.513113][ T5537] CPU: 1 UID: 0 PID: 5537 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(lazy) 
[  135.522907][ T5537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  135.533039][ T5537] =====================================================
[  135.540003][ T5537] Disabling lock debugging due to kernel taint
[  135.546185][ T5537] Kernel panic - not syncing: kmsan.panic set ...
[  135.552653][ T5537] CPU: 1 UID: 0 PID: 5537 Comm: dhcpcd-run-hook Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  135.564018][ T5537] Tainted: [B]=BAD_PAGE
[  135.568194][ T5537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  135.578315][ T5537] Call Trace:
[  135.581634][ T5537]  <TASK>
[  135.584621][ T5537]  __dump_stack+0x26/0x30
[  135.589029][ T5537]  dump_stack_lvl+0x50/0x1c0
[  135.593691][ T5537]  ? dump_stack+0x12/0x25
[  135.598109][ T5537]  dump_stack+0x1e/0x25
[  135.602349][ T5537]  vpanic+0x7b4/0x1430
[  135.606550][ T5537]  panic+0x15d/0x160
[  135.610551][ T5537]  kmsan_report+0x31a/0x320
[  135.615153][ T5537]  ? kmsan_get_metadata+0xf1/0x160
[  135.620357][ T5537]  ? kmsan_internal_check_memory+0x1e8/0x240
[  135.626429][ T5537]  ? kmsan_copy_to_user+0xef/0x190
[  135.631640][ T5537]  ? irqentry_exit+0x48b/0xa00
[  135.636515][ T5537]  ? exc_page_fault+0x7e/0xb0
[  135.641290][ T5537]  ? asm_exc_page_fault+0x2b/0x30
[  135.646419][ T5537]  ? handle_mm_fault+0x2eb0/0x6ee0
[  135.651670][ T5537]  ? kmsan_get_metadata+0xf1/0x160
[  135.656897][ T5537]  ? kmsan_get_metadata+0xf1/0x160
[  135.662099][ T5537]  ? kmsan_internal_set_shadow_origin+0x7a/0x110
[  135.668522][ T5537]  kmsan_internal_check_memory+0x1e8/0x240
[  135.674433][ T5537]  kmsan_copy_to_user+0xef/0x190
[  135.679463][ T5537]  irqentry_exit+0x48b/0xa00
[  135.684166][ T5537]  exc_page_fault+0x7e/0xb0
[  135.688777][ T5537]  asm_exc_page_fault+0x2b/0x30
[  135.693701][ T5537] RIP: 0033:0x7f7fd4d9b66d
[  135.698172][ T5537] Code: 05 18 3e 07 00 48 8b 00 ff 40 40 6a 01 5e 48 8b 7c 24 08 e8 be 58 ff ff 48 93 c6 43 10 02 4c 89 7b 08 e8 95 5c ff ff 8a 43 10 <c6> 43 11 00 88 45 00 48 8b 43 08 48 89 45 08 48 8b 84 24 e8 00 00
[  135.717854][ T5537] RSP: 002b:00007ffd14617f60 EFLAGS: 00010246
[  135.723991][ T5537] RAX: 0000000000000002 RBX: 0000557147c2cf00 RCX: 0000000000000000
[  135.732185][ T5537] RDX: 00007ffd1461be02 RSI: 0000557147c2e0d0 RDI: 0000557147c2cf12
[  135.740214][ T5537] RBP: 00007ffd14618118 R08: 0000000000000001 R09: 0000000000000000
[  135.748229][ T5537] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000010
[  135.756246][ T5537] R13: 0000000000000000 R14: 0000000000000001 R15: 00007f7fd4e0c240
[  135.764287][ T5537]  </TASK>
[  135.767523][ T5537] Kernel Offset: disabled
[  135.771888][ T5537] Rebooting in 86400 seconds..