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openwrt-packages/utils/irqbalance/patches/0002-post-190-fix-check-saveptr-NULL.patch
Hannu Nyman a47793efde irqbalance: upstream patch to fix segfault
Apply post-1.9.0 patch from upstream to fix a segfault.
savedptr can be NULL, so guard for that.

Fixes #18741

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
(cherry picked from commit ab7a23102e)
2022-06-12 20:33:53 +03:00

24 lines
732 B
Diff

From 522883505d3b02e3294f045f49007b61c00e2c31 Mon Sep 17 00:00:00 2001
From: Chao Liu <liuchao173@huawei.com>
Date: Wed, 8 Jun 2022 10:04:02 +0800
Subject: [PATCH] check whether savedptr is NULL before invoking strlen
savedptr can be null in musl libc, so the strlen(NULL) will segfault
Signed-off-by: Chao Liu <liuchao173@huawei.com>
---
procinterrupts.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/procinterrupts.c
+++ b/procinterrupts.c
@@ -178,7 +178,7 @@ void init_irq_class_and_type(char *saved
}
#ifdef AARCH64
- if (strlen(savedptr) > 0) {
+ if (savedptr && strlen(savedptr) > 0) {
snprintf(irq_fullname, PATH_MAX, "%s %s", last_token, savedptr);
tmp = strchr(irq_fullname, '\n');
if (tmp)