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| author | liuyuntao <liuyuntao10@huawei.com> | 2021-08-28 13:43:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-18 21:16:23 +0300 |
| commit | 255c569eeb468224c907a12438cc849bb124ef30 (patch) | |
| tree | 81aaa58f3465dab40c3c04996b52a4ad296a212b /kernel | |
| parent | a496b70908816206af54ba8dfbec01feb3f5716c (diff) | |
| download | linux-255c569eeb468224c907a12438cc849bb124ef30.tar.xz | |
virtio-gpu: fix possible memory allocation failure
[ Upstream commit 5bd4f20de8acad37dbb3154feb34dbc36d506c02 ]
When kmem_cache_zalloc in virtio_gpu_get_vbuf fails, it will return
an error code. But none of its callers checks this error code, and
a core dump will take place.
Considering many of its callers can't handle such error, I add
a __GFP_NOFAIL flag when calling kmem_cache_zalloc to make sure
it won't fail, and delete those unused error handlings.
Fixes: dc5698e80cf724 ("Add virtio gpu driver.")
Signed-off-by: Yuntao Liu <liuyuntao10@huawei.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20210828104321.3410312-1-liuyuntao10@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions