git: ea3fbe0707f9 - main - KASAN: Disable checking before triggering a panic
Mark Johnston
markj at FreeBSD.org
Fri Jul 23 14:50:03 UTC 2021
The branch main has been updated by markj:
URL: https://cgit.FreeBSD.org/src/commit/?id=ea3fbe0707f9a02a29875966668b6f15284f335a
commit ea3fbe0707f9a02a29875966668b6f15284f335a
Author: Mark Johnston <markj at FreeBSD.org>
AuthorDate: 2021-07-23 14:41:00 +0000
Commit: Mark Johnston <markj at FreeBSD.org>
CommitDate: 2021-07-23 14:47:14 +0000
KASAN: Disable checking before triggering a panic
KASAN hooks will not generate reports if panicstr != NULL, but then
there is a window after the initial panic() call where another report
may be raised. This can happen if a false positive occurs; to simplify
debugging of such problems, avoid recursing.
Sponsored by: The FreeBSD Foundation
---
sys/kern/subr_asan.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sys/kern/subr_asan.c b/sys/kern/subr_asan.c
index 07f7b44d08d7..825d7d4228c0 100644
--- a/sys/kern/subr_asan.c
+++ b/sys/kern/subr_asan.c
@@ -174,6 +174,7 @@ kasan_code_name(uint8_t code)
#define REPORT(f, ...) do { \
if (panic_on_violation) { \
+ kasan_enabled = false; \
panic(f, __VA_ARGS__); \
} else { \
struct stack st; \
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