name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 10852 Comm: syz-executor2 Not tainted 4.19.0+ #82 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: ================================================================== BUG: KMSAN: uninit-value in show_trace_log_lvl+0x53f/0x11e0 arch/x86/kernel/dumpstack.c:212 CPU: 0 PID: 10852 Comm: syz-executor2 Not tainted 4.19.0+ #82 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x419/0x480 lib/dump_stack.c:113 kmsan_report+0x19f/0x300 mm/kmsan/kmsan.c:911 __msan_warning+0x76/0xd0 mm/kmsan/kmsan_instr.c:415 show_trace_log_lvl+0x53f/0x11e0 arch/x86/kernel/dumpstack.c:212 show_stack+0x12e/0x170 arch/x86/kernel/dumpstack.c:293 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x32d/0x480 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x11e5/0x13c0 lib/fault-inject.c:149 __should_failslab+0x278/0x2a0 mm/failslab.c:32 should_failslab+0x29/0x70 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc_node mm/slub.c:2653 [inline] slab_alloc mm/slub.c:2735 [inline] kmem_cache_alloc+0x146/0xe20 mm/slub.c:2740 xfrm_state_alloc+0xd1/0x700 net/xfrm/xfrm_state.c:567 xfrm_state_find+0x2a46/0x4c30 net/xfrm/xfrm_state.c:1005 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:1413 [inline] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:1458 [inline] xfrm_resolve_and_create_bundle+0x9c7/0x47a0 net/xfrm/xfrm_policy.c:1753 xfrm_lookup_with_ifid+0x997/0x3d30 net/xfrm/xfrm_policy.c:2076 xfrm_lookup net/xfrm/xfrm_policy.c:2200 [inline] xfrm_lookup_route+0x104/0x370 net/xfrm/xfrm_policy.c:2211 ip6_dst_lookup_flow+0x227/0x290 net/ipv6/ip6_output.c:1083 ip6_datagram_dst_update+0x9b4/0xfb0 net/ipv6/datagram.c:91 __ip6_datagram_connect+0x15a5/0x1ad0 net/ipv6/datagram.c:250 ip6_datagram_connect net/ipv6/datagram.c:273 [inline] ip6_datagram_connect_v6_only+0x102/0x180 net/ipv6/datagram.c:285 inet_dgram_connect+0x3e5/0x720 net/ipv4/af_inet.c:571 __sys_connect+0x745/0x860 net/socket.c:1664 __do_sys_connect net/socket.c:1675 [inline] __se_sys_connect+0x8d/0xb0 net/socket.c:1672 __x64_sys_connect+0x4a/0x70 net/socket.c:1672 do_syscall_64+0xcf/0x110 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f2a8d748c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f2a8d748c90 RCX: 0000000000457569 RDX: 000000000000001c RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2a8d7496d4 R13: 00000000004bda50 R14: 00000000004cc880 R15: 0000000000000005 Local variable description: ----state@show_trace_log_lvl Variable was created at: show_trace_log_lvl+0xb3/0x11e0 arch/x86/kernel/dumpstack.c:164 show_stack+0x12e/0x170 arch/x86/kernel/dumpstack.c:293 ==================================================================