last executing test programs:

kernel console output (not intermixed with test programs):

5551] Bytes 0-3 of 4 are uninitialized
[  159.936638][ T5551] Memory access of size 4 starts at ffff888107f7fe88
[  159.943371][ T5551] Data copied to user address 00007f38ec8b1ac0
[  159.949572][ T5551] 
[  159.951983][ T5551] CPU: 0 UID: 0 PID: 5551 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(lazy) 
[  159.961801][ T5551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  159.971928][ T5551] =====================================================
[  159.978912][ T5551] Disabling lock debugging due to kernel taint
[  159.985119][ T5551] Kernel panic - not syncing: kmsan.panic set ...
[  159.991603][ T5551] CPU: 0 UID: 0 PID: 5551 Comm: dhcpcd-run-hook Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  160.002989][ T5551] Tainted: [B]=BAD_PAGE
[  160.007195][ T5551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  160.017335][ T5551] Call Trace:
[  160.020690][ T5551]  <TASK>
[  160.023680][ T5551]  __dump_stack+0x26/0x30
[  160.028120][ T5551]  dump_stack_lvl+0x50/0x1c0
[  160.032795][ T5551]  ? dump_stack+0x12/0x25
[  160.037231][ T5551]  dump_stack+0x1e/0x25
[  160.041479][ T5551]  vpanic+0x7b4/0x1430
[  160.045676][ T5551]  panic+0x15d/0x160
[  160.049717][ T5551]  kmsan_report+0x31a/0x320
[  160.054375][ T5551]  ? kmsan_get_metadata+0xf1/0x160
[  160.059616][ T5551]  ? kmsan_internal_check_memory+0x1e8/0x240
[  160.065726][ T5551]  ? kmsan_copy_to_user+0xef/0x190
[  160.070940][ T5551]  ? irqentry_exit+0x48b/0xa00
[  160.075866][ T5551]  ? exc_page_fault+0x7e/0xb0
[  160.080661][ T5551]  ? asm_exc_page_fault+0x2b/0x30
[  160.085805][ T5551]  ? handle_mm_fault+0x2eb0/0x6ee0
[  160.091108][ T5551]  ? kmsan_get_metadata+0xf1/0x160
[  160.096367][ T5551]  ? kmsan_get_metadata+0xf1/0x160
[  160.101604][ T5551]  ? kmsan_internal_set_shadow_origin+0x7a/0x110
[  160.108054][ T5551]  kmsan_internal_check_memory+0x1e8/0x240
[  160.114059][ T5551]  kmsan_copy_to_user+0xef/0x190
[  160.119134][ T5551]  irqentry_exit+0x48b/0xa00
[  160.123892][ T5551]  exc_page_fault+0x7e/0xb0
[  160.128541][ T5551]  asm_exc_page_fault+0x2b/0x30
[  160.133494][ T5551] RIP: 0033:0x7f38eca859d0
[  160.138028][ T5551] 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
[  160.157738][ T5551] RSP: 002b:00007ffcd51c1bc8 EFLAGS: 00010202
[  160.163983][ T5551] RAX: 000055d3011ac910 RBX: 000055d3011c1e80 RCX: 000055d65c2bdc00
[  160.172053][ T5551] RDX: 00007f38ecc1b460 RSI: 0000000000000001 RDI: 00007ffcd51c24c0
[  160.180107][ T5551] RBP: 0000000000000000 R08: 0000000000000020 R09: 0000000000000000
[  160.188161][ T5551] R10: 00007f38ecaf1fe0 R11: 00007f38ecaf28e0 R12: 000055d3011ac910
[  160.196229][ T5551] R13: 000055d3011acc30 R14: 0000000000000002 R15: 0000000000000000
[  160.204307][ T5551]  </TASK>
[  160.208039][ T5551] Kernel Offset: disabled
[  160.212437][ T5551] Rebooting in 86400 seconds..