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| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2020-01-30 22:13:51 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-14 16:29:55 -0500 |
| commit | 09937b5744ef814a9153bd3d8de54b188a699775 (patch) | |
| tree | 0b852ed6f2805d26aa5beb4f5c64e033a31a8445 | |
| parent | 4daec55c62aee308bf265a557369d7fcdad60b77 (diff) | |
| download | linux-stable-09937b5744ef814a9153bd3d8de54b188a699775.tar.gz linux-stable-09937b5744ef814a9153bd3d8de54b188a699775.tar.bz2 linux-stable-09937b5744ef814a9153bd3d8de54b188a699775.zip | |
lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more()
commit 3e21d9a501bf99aee2e5835d7f34d8c823f115b5 upstream.
In case memory resources for _ptr2_ were allocated, release them before
return.
Notice that in case _ptr1_ happens to be NULL, krealloc() behaves
exactly like kmalloc().
Addresses-Coverity-ID: 1490594 ("Resource leak")
Link: http://lkml.kernel.org/r/20200123160115.GA4202@embeddedor
Fixes: 3f15801cdc23 ("lib: add kasan test module")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | lib/test_kasan.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/test_kasan.c b/lib/test_kasan.c index c32f3b0048dc..275ff0b5162e 100644 --- a/lib/test_kasan.c +++ b/lib/test_kasan.c @@ -93,6 +93,7 @@ static noinline void __init kmalloc_oob_krealloc_more(void) if (!ptr1 || !ptr2) { pr_err("Allocation failed\n"); kfree(ptr1); + kfree(ptr2); return; } |