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
 should_failslab+0x279/0x2a0 mm/failslab.c:32
==================================================================
BUG: KMSAN: uninit-value in on_stack arch/x86/include/asm/stacktrace.h:44 [inline]
BUG: KMSAN: uninit-value in update_stack_state+0x4ec/0xa40 arch/x86/kernel/unwind_frame.c:238
CPU: 0 PID: 6428 Comm: syz-executor2 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
 on_stack arch/x86/include/asm/stacktrace.h:44 [inline]
 update_stack_state+0x4ec/0xa40 arch/x86/kernel/unwind_frame.c:238
 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
 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]
 kvmalloc_node+0x1a1/0x2e0 mm/util.c:419
 kvmalloc include/linux/mm.h:541 [inline]
 seq_buf_alloc fs/seq_file.c:29 [inline]
 traverse+0x1b7/0xe60 fs/seq_file.c:102
 seq_read+0x3dc/0x2260 fs/seq_file.c:192
 proc_reg_read+0x1de/0x2f0 fs/proc/inode.c:218
 __vfs_read+0x19f/0x8e0 fs/read_write.c:411
 vfs_read+0x36c/0x6c0 fs/read_write.c:447
 SYSC_pread64+0x275/0x310 fs/read_write.c:611
 SyS_pread64+0x65/0x90 fs/read_write.c:598
 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x455329
RSP: 002b:00007f919d807c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000011
RAX: ffffffffffffffda RBX: 00007f919d8086d4 RCX: 0000000000455329
RDX: 0000000000000008 RSI: 0000000020000040 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000001ffff R11: 0000000000000246 R12: 0000000000000014
R13: 000000000000046e R14: 00000000006f9af0 R15: 0000000000000000

Local variable description: ----args@sprintf
netlink: 20 bytes leftover after parsing attributes in process `syz-executor1'.
Variable was created at:
 sprintf+0xdd/0x200 lib/vsprintf.c:2479
 proc_self_get_link+0x1eb/0x330 fs/proc/self.c:25
==================================================================