From: Gaosheng Cui <cuigaosheng1@huawei.com> mainline inclusion from mainline-v6.13-rc1 commit 0f514068fbc5d4d189c817adc7c4e32cffdc2e47 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBEAMP CVE: CVE-2024-56572 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... -------------------------------- The buffer in the loop should be released under the exception path, otherwise there may be a memory leak here. To mitigate this, free the buffer when allegro_alloc_buffer fails. Fixes: f20387dfd065 ("media: allegro: add Allegro DVT video IP core driver") Cc: <stable@vger.kernel.org> Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Qi Xi <xiqi2@huawei.com> --- drivers/media/platform/allegro-dvt/allegro-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/allegro-dvt/allegro-core.c b/drivers/media/platform/allegro-dvt/allegro-core.c index da61f9beb6b4..7dffea2ad88a 100644 --- a/drivers/media/platform/allegro-dvt/allegro-core.c +++ b/drivers/media/platform/allegro-dvt/allegro-core.c @@ -1509,8 +1509,10 @@ static int allocate_buffers_internal(struct allegro_channel *channel, INIT_LIST_HEAD(&buffer->head); err = allegro_alloc_buffer(dev, buffer, size); - if (err) + if (err) { + kfree(buffer); goto err; + } list_add(&buffer->head, list); } -- 2.33.0