From: Josh Poimboeuf <[email protected]>
commit a0f81bf26888048100bf017fadf438a5bdffa8d8 upstream.
If the ORC entry type is unknown, nothing else can be done other than
reporting an error. Exit the function instead of breaking out of the
switch statement.
Fixes: ee9f8fce9964 ("x86/unwind: Add the ORC unwinder")
Reviewed-by: Miroslav Benes <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Dave Jones <[email protected]>
Cc: Jann Horn <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vince Weaver <[email protected]>
Link:
https://lore.kernel.org/r/a7fa668ca6eabbe81ab18b2424f15adbbfdc810a.1587808742.git.jpoim...@redhat.com
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/kernel/unwind_orc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -531,7 +531,7 @@ bool unwind_next_frame(struct unwind_sta
default:
orc_warn("unknown .orc_unwind entry type %d for ip %pB\n",
orc->type, (void *)orig_ip);
- break;
+ goto err;
}
/* Find BP: */
