=====================================================
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:2797
 vscnprintf lib/vsprintf.c:2900 [inline]
 scnprintf+0x23c/0x340 lib/vsprintf.c:2954
 info_print_ext_header kernel/printk/printk.c:567 [inline]
 devkmsg_read+0x6d1/0x1160 kernel/printk/printk.c:749
 vfs_read+0x6c8/0x1980 fs/read_write.c:483
 ksys_read+0x28c/0x520 fs/read_write.c:623
 __do_sys_read fs/read_write.c:633 [inline]
 __se_sys_read fs/read_write.c:631 [inline]
 __x64_sys_read+0xdb/0x120 fs/read_write.c:631
 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@__fsnotify_parent created at:
 __fsnotify_parent+0x235/0xfc0 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
=====================================================
Kernel panic - not syncing: panic_on_kmsan set ...
CPU: 1 PID: 2822 Comm: systemd-journal Tainted: G    B             5.15.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1ff/0x28e lib/dump_stack.c:106
 dump_stack+0x25/0x28 lib/dump_stack.c:113
 panic+0x44f/0xdeb kernel/panic.c:232
 kmsan_report+0x2ee/0x300 mm/kmsan/report.c:186
 __msan_warning+0xd7/0x150 mm/kmsan/instrumentation.c:208
 check_pointer lib/vsprintf.c:705 [inline]
 string+0x3d2/0x700 lib/vsprintf.c:717
 vsnprintf+0x224f/0x36a0 lib/vsprintf.c:2797
 vscnprintf lib/vsprintf.c:2900 [inline]
 scnprintf+0x23c/0x340 lib/vsprintf.c:2954
 info_print_ext_header kernel/printk/printk.c:567 [inline]
 devkmsg_read+0x6d1/0x1160 kernel/printk/printk.c:749
 vfs_read+0x6c8/0x1980 fs/read_write.c:483
 ksys_read+0x28c/0x520 fs/read_write.c:623
 __do_sys_read fs/read_write.c:633 [inline]
 __se_sys_read fs/read_write.c:631 [inline]
 __x64_sys_read+0xdb/0x120 fs/read_write.c:631
 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
RIP: 0033:0x7fc61306a210
Code: 73 01 c3 48 8b 0d 98 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d b9 c1 20 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 4e fc ff ff 48 89 04 24
RSP: 002b:00007fff77f45a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fff77f48490 RCX: 00007fc61306a210
RDX: 0000000000002000 RSI: 00007fff77f46290 RDI: 0000000000000009
RBP: 0000000000000000 R08: 0000000000000008 R09: 000055bb6f92f7b8
R10: 000055bb6f92f780 R11: 0000000000000246 R12: 00007fff77f46290
R13: 00007fff77f483e8 R14: 000055bb6ed2f958 R15: 0005cd1c79380258
Kernel Offset: disabled
Rebooting in 86400 seconds..