Kernel panic - not syncing: kmsan.panic set ... CPU: 1 UID: 0 PID: 28005 Comm: syz.5.8166 Tainted: G B W syzkaller #0 PREEMPT(none) Tainted: [B]=BAD_PAGE, [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x26/0x30 lib/dump_stack.c:94 dump_stack_lvl+0x53/0x270 lib/dump_stack.c:120 dump_stack+0x1e/0x25 lib/dump_stack.c:129 vpanic+0x435/0xd30 kernel/panic.c:489 panic+0x15d/0x160 kernel/panic.c:626 kmsan_report+0x31c/0x320 mm/kmsan/report.c:218 __msan_warning+0x1b/0x30 mm/kmsan/instrumentation.c:315 xfrm_state_find+0x2424/0xa940 net/xfrm/xfrm_state.c:1421 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2522 [inline] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:2573 [inline] xfrm_resolve_and_create_bundle+0xabc/0x58a0 net/xfrm/xfrm_policy.c:2871 xfrm_lookup_with_ifid+0x48c/0x3ac0 net/xfrm/xfrm_policy.c:3205 xfrm_lookup net/xfrm/xfrm_policy.c:3336 [inline] xfrm_lookup_route+0x63/0x2b0 net/xfrm/xfrm_policy.c:3347 ip6_dst_lookup_flow net/ipv6/ip6_output.c:1278 [inline] ip6_sk_dst_lookup_flow+0xd71/0x1200 net/ipv6/ip6_output.c:1310 udpv6_sendmsg+0x360a/0x3fa0 net/ipv6/udp.c:1707 inet6_sendmsg+0x1ef/0x2a0 net/ipv6/af_inet6.c:659 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x145/0x3d0 net/socket.c:742 ____sys_sendmsg+0x893/0xd80 net/socket.c:2630 ___sys_sendmsg+0x271/0x3b0 net/socket.c:2684 __sys_sendmmsg+0x3bf/0x7c0 net/socket.c:2766 __compat_sys_sendmmsg net/compat.c:360 [inline] __do_compat_sys_sendmmsg net/compat.c:367 [inline] __se_compat_sys_sendmmsg net/compat.c:364 [inline] __ia32_compat_sys_sendmmsg+0xd2/0x160 net/compat.c:364 ia32_sys_call+0x39e0/0x4310 arch/x86/include/generated/asm/syscalls_32.h:346 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0xb0/0x150 arch/x86/entry/syscall_32.c:306 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7f01539 Code: 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f53f655c EFLAGS: 00000206 ORIG_RAX: 0000000000000159 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000300 RDX: 0000000000000001 RSI: 00000000040040d4 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds.. ---------------- Code disassembly (best guess): 0: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 4: 10 07 adc %al,(%rdi) 6: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi a: 10 08 adc %cl,(%rax) c: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 ret 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 90 nop 33: 90 nop 34: 90 nop 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop