RDX: 0000000000000002 RSI: 0000000020005240 RDI: 0000000000000014
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000015
R13: 000000000000057a R14: 00000000006fc410 R15: 0000000000000000
==================================================================
BUG: KMSAN: uninit-value in syslog_print kernel/printk/printk.c:1341 [inline]
BUG: KMSAN: uninit-value in do_syslog+0x3a01/0x3c20 kernel/printk/printk.c:1467
CPU: 0 PID: 4349 Comm: rsyslogd Not tainted 4.17.0-rc5+ #98
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+0x185/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x149/0x260 mm/kmsan/kmsan.c:1084
 __msan_warning_32+0x6e/0xc0 mm/kmsan/kmsan_instr.c:683
 syslog_print kernel/printk/printk.c:1341 [inline]
 do_syslog+0x3a01/0x3c20 kernel/printk/printk.c:1467
 kmsg_read+0x142/0x1a0 fs/proc/kmsg.c:40
 proc_reg_read+0x1de/0x2f0 fs/proc/inode.c:230
 __vfs_read+0x1a5/0x9b0 fs/read_write.c:416
 vfs_read+0x36c/0x6c0 fs/read_write.c:452
 ksys_read fs/read_write.c:578 [inline]
 __do_sys_read fs/read_write.c:588 [inline]
 __se_sys_read fs/read_write.c:586 [inline]
 __x64_sys_read+0x1bf/0x3e0 fs/read_write.c:586
 do_syscall_64+0x154/0x220 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7ff89bb161fd
RSP: 002b:00007ff8990b5e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000771ce0 RCX: 00007ff89bb161fd
RDX: 0000000000000fff RSI: 00007ff89a8ea5a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 000000000075d260 R09: 0000000000000000
R10: 0000000000000011 R11: 0000000000000293 R12: 000000000065e420
R13: 00007ff8990b69c0 R14: 00007ff89c15b040 R15: 0000000000000003

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:294 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:685
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:528
 log_store+0x13e5/0x1490 kernel/printk/printk.c:641
 log_output kernel/printk/printk.c:1832 [inline]
 vprintk_emit+0xc44/0xff0 kernel/printk/printk.c:1897
 vprintk_default+0x90/0xa0 kernel/printk/printk.c:1955
 vprintk_func+0x517/0x700 kernel/printk/printk_safe.c:379
 printk+0x1b6/0x1f0 kernel/printk/printk.c:1991
 printk_stack_address arch/x86/kernel/dumpstack.c:69 [inline]
 show_trace_log_lvl+0xb5c/0x10a0 arch/x86/kernel/dumpstack.c:205
 show_stack+0xfc/0x150 arch/x86/kernel/dumpstack.c:241
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:113
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail+0x87b/0xab0 lib/fault-inject.c:149
 __should_failslab+0x278/0x2a0 mm/failslab.c:32
 should_failslab+0x29/0x70 mm/slab_common.c:1522
 slab_pre_alloc_hook mm/slab.h:423 [inline]
 slab_alloc_node mm/slub.c:2679 [inline]
 slab_alloc mm/slub.c:2761 [inline]
 kmem_cache_alloc+0x12e/0xb90 mm/slub.c:2766
 kmem_cache_zalloc include/linux/slab.h:691 [inline]
 taskstats_tgid_alloc kernel/taskstats.c:573 [inline]
 taskstats_exit+0x17a/0x17e0 kernel/taskstats.c:606
 do_exit+0xbfc/0x38d0 kernel/exit.c:852
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 get_signal+0x1320/0x1f20 kernel/signal.c:2482
 do_signal+0xb8/0x1c80 arch/x86/kernel/signal.c:810
 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline]
 prepare_exit_to_usermode+0x271/0x3a0 arch/x86/entry/common.c:196
 syscall_return_slowpath+0xe9/0x700 arch/x86/entry/common.c:265
 do_syscall_64+0x1a6/0x220 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
Local variable description: ----name@__fsnotify_parent
Variable was created at:
 __fsnotify_parent+0x75/0x560 fs/notify/fsnotify.c:147
 fsnotify_parent include/linux/fsnotify.h:26 [inline]
 fsnotify_modify include/linux/fsnotify.h:206 [inline]
 vfs_write+0x5fd/0x8d0 fs/read_write.c:551
==================================================================