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55 lines
1.4 KiB
55 lines
1.4 KiB
8 months ago
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From 8fd0c565b09ba449418d7d604ceba66313246152 Mon Sep 17 00:00:00 2001
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From: Guanqin Miao <miaoguanqin@huawei.com>
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Date: Mon, 24 Apr 2023 16:06:35 +0800
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Subject: [PATCH 136/165] Fix memory leak in file Kill
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When we test mdadm with asan, we found some memory leaks in Kill.c
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We fix these memory leaks based on code logic.
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Signed-off-by: Guanqin Miao <miaoguanqin@huawei.com>
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Signed-off-by: Li Xiao Keng <lixiaokeng@huawei.com>
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Acked-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
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Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
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---
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Kill.c | 9 ++++++++-
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1 file changed, 8 insertions(+), 1 deletion(-)
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diff --git a/Kill.c b/Kill.c
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index bfd0efdc..43c9abed 100644
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--- a/Kill.c
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+++ b/Kill.c
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@@ -41,6 +41,7 @@ int Kill(char *dev, struct supertype *st, int force, int verbose, int noexcl)
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* 4 - failed to find a superblock.
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*/
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+ bool free_super = false;
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int fd, rv = 0;
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if (force)
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@@ -52,8 +53,10 @@ int Kill(char *dev, struct supertype *st, int force, int verbose, int noexcl)
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dev);
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return 2;
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}
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- if (st == NULL)
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+ if (st == NULL) {
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st = guess_super(fd);
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+ free_super = true;
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+ }
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if (st == NULL || st->ss->init_super == NULL) {
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if (verbose >= 0)
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pr_err("Unrecognised md component device - %s\n", dev);
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@@ -77,6 +80,10 @@ int Kill(char *dev, struct supertype *st, int force, int verbose, int noexcl)
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rv = 0;
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}
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}
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+ if (free_super && st) {
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+ st->ss->free_super(st);
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+ free(st);
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+ }
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close(fd);
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return rv;
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}
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--
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2.40.1
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