RDX: 0000000020000100 RSI: 00000000c0bc5351 RDI: 0000000000000013
RBP: 000000000072bff0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014
R13: 00000000004c55f0 R14: 00000000004ccfd8 R15: 0000000000000000
==================================================================
BUG: KMSAN: uninit-value in syslog_print kernel/printk/printk.c:1341 [inline]
BUG: KMSAN: uninit-value in do_syslog+0x3a2d/0x3c20 kernel/printk/printk.c:1467
CPU: 0 PID: 4355 Comm: rsyslogd Not tainted 4.17.0+ #9
: renamed from ifb0
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+0x188/0x2a0 mm/kmsan/kmsan.c:1125
 __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
 syslog_print kernel/printk/printk.c:1341 [inline]
 do_syslog+0x3a2d/0x3c20 kernel/printk/printk.c:1467
: renamed from ifb0
 kmsg_read+0x142/0x1a0 fs/proc/kmsg.c:40
 proc_reg_read+0x1e3/0x2f0 fs/proc/inode.c:230
 __vfs_read+0x1b2/0x9d0 fs/read_write.c:416
 vfs_read+0x36c/0x6b0 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+0x15b/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7efc8907f1fd
RSP: 002b:00007efc8661ee30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00000000011e5170 RCX: 00007efc8907f1fd
RDX: 0000000000000fff RSI: 00007efc87e535a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 00000000011d0260 R09: 0000000004000001
R10: 0000000000000001 R11: 0000000000000293 R12: 000000000065e420
R13: 00007efc8661f9c0 R14: 00007efc896c4040 R15: 0000000000000003

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:282 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:297 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:689
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464
 log_store+0x13fc/0x14b0 kernel/printk/printk.c:641
 log_output kernel/printk/printk.c:1832 [inline]
 vprintk_emit+0xca5/0x1060 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+0x1e4/0x210 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:207
 show_stack+0xfc/0x150 arch/x86/kernel/dumpstack.c:245
 __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_fail_futex kernel/futex.c:306 [inline]
 get_futex_key+0x355/0x1ce0 kernel/futex.c:519
 futex_wake+0x189/0xba0 kernel/futex.c:1526
 do_futex+0xaa8/0x6c20 kernel/futex.c:3531
 mm_release+0x297/0x600 kernel/fork.c:1203
 exit_mm+0xcb/0x7a0 kernel/exit.c:500
 do_exit+0xc12/0x3930 kernel/exit.c:854
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 get_signal+0x1405/0x1ec0 kernel/signal.c:2482
 do_signal+0xb8/0x1d20 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+0xe9/0x710 arch/x86/entry/common.c:265
 do_syscall_64+0x1ad/0x230 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_perm include/linux/fsnotify.h:52 [inline]
 security_file_open+0x281/0x3c0 security/security.c:981
==================================================================