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+0x185/0x1d0 lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail+0x87b/0xab0 lib/fault-inject.c:149
==================================================================
BUG: KMSAN: uninit-value in core_kernel_text kernel/extable.c:77 [inline]
BUG: KMSAN: uninit-value in kernel_text_address+0x248/0x3a0 kernel/extable.c:127
CPU: 1 PID: 5639 Comm: syz-executor5 Not tainted 4.16.0+ #81
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
 core_kernel_text kernel/extable.c:77 [inline]
 kernel_text_address+0x248/0x3a0 kernel/extable.c:127
 __kernel_text_address+0x34/0xe0 kernel/extable.c:107
 show_trace_log_lvl+0x954/0x1030 arch/x86/kernel/dumpstack.c:175
 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
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail+0x87b/0xab0 lib/fault-inject.c:149
 should_failslab+0x279/0x2a0 mm/failslab.c:32
 slab_pre_alloc_hook mm/slab.h:422 [inline]
 slab_alloc_node mm/slub.c:2663 [inline]
 __kmalloc_node+0x22e/0x1190 mm/slub.c:3832
 kmalloc_node include/linux/slab.h:554 [inline]
 kzalloc_node include/linux/slab.h:712 [inline]
 __get_vm_area_node+0x28e/0x810 mm/vmalloc.c:1402
 __vmalloc_node_range+0x2ad/0x1140 mm/vmalloc.c:1754
 __vmalloc_node mm/vmalloc.c:1804 [inline]
 __vmalloc+0xe2/0x100 mm/vmalloc.c:1810
 bpf_prog_alloc+0xb0/0x4b0 kernel/bpf/core.c:84
 __get_filter+0x1c4/0x7d0 net/core/filter.c:1289
 sk_attach_filter+0x72/0x2e0 net/core/filter.c:1324
 sock_setsockopt+0x344f/0x4830 net/core/sock.c:928
 SYSC_setsockopt+0x344/0x570 net/socket.c:1845
 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: 0033:0x455259
RSP: 002b:00007f26562f4c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f26562f56d4 RCX: 0000000000455259
RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000
R10: 0000000020004ff0 R11: 0000000000000246 R12: 0000000000000015
R13: 000000000000052a R14: 00000000006fac90 R15: 0000000000000000

Local variable description: ----wq@lookup_slow
Variable was created at:
 lookup_slow+0x74/0x760 fs/namei.c:1607
 walk_component+0x2d6/0xb20 fs/namei.c:1763
==================================================================