=====================================================
BUG: KMSAN: uninit-value in check_pointer lib/vsprintf.c:705 [inline]
BUG: KMSAN: uninit-value in string+0x3d2/0x700 lib/vsprintf.c:717
 check_pointer lib/vsprintf.c:705 [inline]
 string+0x3d2/0x700 lib/vsprintf.c:717
 vsnprintf+0x224f/0x36a0 lib/vsprintf.c:2805
 vscnprintf lib/vsprintf.c:2908 [inline]
 scnprintf+0x23c/0x340 lib/vsprintf.c:2962
 info_print_ext_header kernel/printk/printk.c:567 [inline]
 devkmsg_read+0x6d1/0x1170 kernel/printk/printk.c:749
 vfs_read+0x6c8/0x1980 fs/read_write.c:479
 ksys_read+0x28c/0x520 fs/read_write.c:619
 __do_sys_read fs/read_write.c:629 [inline]
 __se_sys_read fs/read_write.c:627 [inline]
 __x64_sys_read+0xdb/0x120 fs/read_write.c:627
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Local variable name created at:
 __fsnotify_parent+0x23c/0x1010 fs/notify/fsnotify.c:191
 fsnotify_parent include/linux/fsnotify.h:77 [inline]
 fsnotify_file include/linux/fsnotify.h:99 [inline]
 fsnotify_perm+0x702/0xa80 include/linux/fsnotify.h:124

CPU: 1 PID: 2836 Comm: systemd-journal Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================