CPU: 1 UID: 0 PID: 5223 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 ===================================================== Disabling lock debugging due to kernel taint Kernel panic - not syncing: kmsan.panic set ... CPU: 1 UID: 0 PID: 5223 Comm: dhcpcd Tainted: G B syzkaller #0 PREEMPT(lazy) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Call Trace: __dump_stack+0x26/0x30 lib/dump_stack.c:94 dump_stack_lvl+0x50/0x1c0 lib/dump_stack.c:120 dump_stack+0x1e/0x25 lib/dump_stack.c:129 vpanic+0x7b8/0x1430 kernel/panic.c:651 panic+0x15d/0x160 kernel/panic.c:788 kmsan_report+0x31a/0x320 mm/kmsan/report.c:218 kmsan_internal_check_memory+0x1e4/0x240 mm/kmsan/core.c:324 kmsan_copy_to_user+0xef/0x190 mm/kmsan/hooks.c:271 rseq_set_ids_get_csaddr include/linux/rseq_entry.h:502 [inline] rseq_update_usr include/linux/rseq_entry.h:536 [inline] rseq_exit_user_update include/linux/rseq_entry.h:645 [inline] __rseq_exit_to_user_mode_restart include/linux/rseq_entry.h:674 [inline] rseq_exit_to_user_mode_restart include/linux/rseq_entry.h:703 [inline] exit_to_user_mode_loop kernel/entry/common.c:103 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:244 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:315 [inline] irqentry_exit+0x4a6/0xa40 kernel/entry/common.c:165 exc_page_fault+0x7e/0xb0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x563614cd7400 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 RSP: 002b:00007ffccfae0410 EFLAGS: 00010202 RAX: 000056363f40aa80 RBX: 000056363f409560 RCX: 00007fac1a2f2de8 RDX: 000056363f409ad0 RSI: 0000000000000011 RDI: 000056363f409560 RBP: 00007ffccfae0530 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffccfae0444 R13: 0000563614ce2534 R14: 000056363f409560 R15: 000000000000158e Kernel Offset: disabled Rebooting in 86400 seconds..