===================================================== 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_path_symlink+0xfc/0x190 security/tomoyo/tomoyo.c:199 security_path_symlink+0x222/0x310 security/security.c:1164 do_symlinkat+0x212/0xb50 fs/namei.c:4274 __do_sys_symlink fs/namei.c:4301 [inline] __se_sys_symlink fs/namei.c:4299 [inline] __x64_sys_symlink+0x12b/0x170 fs/namei.c:4299 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 ----waiter.i@__mutex_lock created at: __mutex_lock_common kernel/locking/mutex.c:566 [inline] __mutex_lock+0x6c/0x1a70 kernel/locking/mutex.c:729 __mutex_lock_interruptible_slowpath+0x2b/0x30 kernel/locking/mutex.c:991 ===================================================== Kernel panic - not syncing: panic_on_kmsan set ... CPU: 1 PID: 8607 Comm: syz-executor.2 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:168 __msan_warning+0xb4/0x100 mm/kmsan/instrumentation.c:199 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_path_symlink+0xfc/0x190 security/tomoyo/tomoyo.c:199 security_path_symlink+0x222/0x310 security/security.c:1164 do_symlinkat+0x212/0xb50 fs/namei.c:4274 __do_sys_symlink fs/namei.c:4301 [inline] __se_sys_symlink fs/namei.c:4299 [inline] __x64_sys_symlink+0x12b/0x170 fs/namei.c:4299 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: 0033:0x7ff135d6a347 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 58 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff1363a1d78 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff135d6a347 RDX: 00007ff1363a1e53 RSI: 00007ff135dc4f46 RDI: 00007ff1363a1e40 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ff1363a1c10 R10: 00007ff1363a1ac7 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ff1363a1e40 Kernel Offset: disabled Rebooting in 86400 seconds..