syz0 __vmalloc_area_node mm/vmalloc.c:1718 [inline] __vmalloc_node_range+0xeab/0x1140 mm/vmalloc.c:1759 mems_allowed=0 __vmalloc_node mm/vmalloc.c:1804 [inline] __vmalloc_node_flags_caller+0x102/0x120 mm/vmalloc.c:1826 ================================================================== BUG: KMSAN: uninit-value in update_stack_state+0x673/0xa40 arch/x86/kernel/unwind_frame.c:222 CPU: 1 PID: 6173 Comm: syz-executor0 Not tainted 4.16.0+ #84 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x14a/0x1d0 lib/dump_stack.c:53 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:676 update_stack_state+0x673/0xa40 arch/x86/kernel/unwind_frame.c:222 unwind_next_frame+0x618/0xe50 arch/x86/kernel/unwind_frame.c:329 show_trace_log_lvl+0xb49/0x1030 arch/x86/kernel/dumpstack.c:212 show_stack+0xfc/0x150 arch/x86/kernel/dumpstack.c:236 __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:53 warn_alloc+0x3fc/0x660 mm/page_alloc.c:3319 __vmalloc_area_node mm/vmalloc.c:1718 [inline] __vmalloc_node_range+0xeab/0x1140 mm/vmalloc.c:1759 __vmalloc_node mm/vmalloc.c:1804 [inline] __vmalloc_node_flags_caller+0x102/0x120 mm/vmalloc.c:1826 kvmalloc_node+0x2a6/0x2e0 mm/util.c:428 kvmalloc include/linux/mm.h:541 [inline] xt_alloc_table_info+0x6d/0x130 net/netfilter/x_tables.c:1040 do_replace net/ipv6/netfilter/ip6_tables.c:1153 [inline] do_ip6t_set_ctl+0x409/0x930 net/ipv6/netfilter/ip6_tables.c:1690 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x476/0x4d0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0x1e2/0x340 net/ipv6/ipv6_sockglue.c:927 udpv6_setsockopt+0x110/0x1c0 net/ipv6/udp.c:1422 sock_common_setsockopt+0x136/0x170 net/core/sock.c:2975 SYSC_setsockopt+0x4b8/0x570 net/socket.c:1849 SyS_setsockopt+0x76/0xa0 net/socket.c:1828 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 RIP: 0033:0x455329 RSP: 002b:00007faee0ea3c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007faee0ea46d4 RCX: 0000000000455329 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000003 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000516 R14: 00000000006faab0 R15: 0000000000000000 Local variable description: ----wait.i@lock_sock_nested Variable was created at: lock_sock_nested+0x3f/0x2a0 net/core/sock.c:2767 lock_sock include/net/sock.h:1464 [inline] do_ipv6_setsockopt+0x550/0x6340 net/ipv6/ipv6_sockglue.c:167 ==================================================================