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| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2020-02-02 21:19:22 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-05 16:42:19 +0100 |
| commit | 07a8e34251a22755c0a3f9ea8a173b5d30440811 (patch) | |
| tree | ec7eb8473340b0ac2af4d26767166db349b9d7d9 /arch/mips | |
| parent | 6263a83d39faf3571853508a5b7846183498513c (diff) | |
| download | linux-stable-07a8e34251a22755c0a3f9ea8a173b5d30440811.tar.gz linux-stable-07a8e34251a22755c0a3f9ea8a173b5d30440811.tar.bz2 linux-stable-07a8e34251a22755c0a3f9ea8a173b5d30440811.zip | |
MIPS: VPE: Fix a double free and a memory leak in 'release_vpe()'
commit bef8e2dfceed6daeb6ca3e8d33f9c9d43b926580 upstream.
Pointer on the memory allocated by 'alloc_progmem()' is stored in
'v->load_addr'. So this is this memory that should be freed by
'release_progmem()'.
'release_progmem()' is only a call to 'kfree()'.
With the current code, there is both a double free and a memory leak.
Fix it by passing the correct pointer to 'release_progmem()'.
Fixes: e01402b115ccc ("More AP / SP bits for the 34K, the Malta bits and things. Still wants")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: ralf@linux-mips.org
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/kernel/vpe.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 0bef238d2c0c..0d5f9c8f5bda 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -134,7 +134,7 @@ void release_vpe(struct vpe *v) { list_del(&v->list); if (v->load_addr) - release_progmem(v); + release_progmem(v->load_addr); kfree(v); } |