===================================================== BUG: KMSAN: uninit-value in number+0xd27/0x24c0 lib/vsprintf.c:490 number+0xd27/0x24c0 lib/vsprintf.c:490 vsnprintf+0x1f3a/0x36a0 lib/vsprintf.c:2863 snprintf+0x244/0x290 lib/vsprintf.c:2930 tomoyo_print_header security/tomoyo/audit.c:165 [inline] tomoyo_init_log+0xd39/0x3b50 security/tomoyo/audit.c:255 tomoyo_supervisor+0x8bd/0x2820 security/tomoyo/common.c:2097 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline] tomoyo_path_permission security/tomoyo/file.c:587 [inline] tomoyo_path_perm+0x96c/0xc70 security/tomoyo/file.c:838 tomoyo_inode_getattr+0x54/0x60 security/tomoyo/tomoyo.c:122 security_inode_getattr+0x1bf/0x2a0 security/security.c:1333 vfs_getattr fs/stat.c:157 [inline] vfs_statx+0x288/0x880 fs/stat.c:225 vfs_fstatat fs/stat.c:243 [inline] vfs_lstat include/linux/fs.h:3356 [inline] __do_sys_newlstat fs/stat.c:398 [inline] __se_sys_newlstat+0xcd/0x930 fs/stat.c:392 __x64_sys_newlstat+0x92/0xc0 fs/stat.c:392 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 flags created at: release_pages+0xad/0x2260 __pagevec_lru_add+0x621/0x680 mm/swap.c:1056 ===================================================== Kernel panic - not syncing: panic_on_kmsan set ... CPU: 0 PID: 2804 Comm: mount Tainted: G B 5.15.0-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+0x2e9/0x2f0 mm/kmsan/report.c:200 __msan_warning+0xb4/0x100 mm/kmsan/instrumentation.c:224 number+0xd27/0x24c0 lib/vsprintf.c:490 vsnprintf+0x1f3a/0x36a0 lib/vsprintf.c:2863 snprintf+0x244/0x290 lib/vsprintf.c:2930 tomoyo_print_header security/tomoyo/audit.c:165 [inline] tomoyo_init_log+0xd39/0x3b50 security/tomoyo/audit.c:255 tomoyo_supervisor+0x8bd/0x2820 security/tomoyo/common.c:2097 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline] tomoyo_path_permission security/tomoyo/file.c:587 [inline] tomoyo_path_perm+0x96c/0xc70 security/tomoyo/file.c:838 tomoyo_inode_getattr+0x54/0x60 security/tomoyo/tomoyo.c:122 security_inode_getattr+0x1bf/0x2a0 security/security.c:1333 vfs_getattr fs/stat.c:157 [inline] vfs_statx+0x288/0x880 fs/stat.c:225 vfs_fstatat fs/stat.c:243 [inline] vfs_lstat include/linux/fs.h:3356 [inline] __do_sys_newlstat fs/stat.c:398 [inline] __se_sys_newlstat+0xcd/0x930 fs/stat.c:392 __x64_sys_newlstat+0x92/0xc0 fs/stat.c:392 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: 0033:0x7f6da4336335 Code: 69 db 2b 00 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 83 ff 01 48 89 f0 77 30 48 89 c7 48 89 d6 b8 06 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 03 f3 c3 90 48 8b 15 31 db 2b 00 f7 d8 64 89 RSP: 002b:00007ffdf759c2d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 000055cb4cfc5320 RCX: 00007f6da4336335 RDX: 00007ffdf759c310 RSI: 00007ffdf759c310 RDI: 000055cb4cfc4320 RBP: 00007ffdf759c3d0 R08: 0000000000000003 R09: 0000000000001010 R10: 00000000000004bb R11: 0000000000000246 R12: 000055cb4cfc4320 R13: 000055cb4cfc432e R14: 000055cb4cfc4285 R15: 000055cb4cfc428e Kernel Offset: disabled Rebooting in 86400 seconds..