UBSAN: use the kernel panic message markers

Use the same splat markers as panic does for easier matching by external
tools scanning kernel dmesg for splats.

Link: https://lkml.kernel.org/r/20231218135339.23209-1-bp@alien8.de
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/lib/ubsan.c b/lib/ubsan.c
index 3f90810f9f42b94ca97d489e32f99ae256eb6971..df4f8d1354bbf412c8975491adc3f73a49c330ff 100644 (file)
--- a/lib/ubsan.c
+++ b/lib/ubsan.c
@@ -204,8 +204,8 @@ static void ubsan_prologue(struct source_location *loc, const char *reason)
 {
        current->in_ubsan++;
 
-       pr_err("========================================"
-               "========================================\n");
+       pr_warn(CUT_HERE);
+
        pr_err("UBSAN: %s in %s:%d:%d\n", reason, loc->file_name,
                loc->line & LINE_MASK, loc->column & COLUMN_MASK);
 
@@ -215,8 +215,7 @@ static void ubsan_prologue(struct source_location *loc, const char *reason)
 static void ubsan_epilogue(void)
 {
        dump_stack();
-       pr_err("========================================"
-               "========================================\n");
+       pr_warn("---[ end trace ]---\n");
 
        current->in_ubsan--;