Bug 4346 - hv_netvsc: Add check for kvmalloc_array
Summary: hv_netvsc: Add check for kvmalloc_array
Status: RESOLVED FIXED
Alias: None
Product: ANCK 4.19 Dev
Classification: ANCK
Component: drivers (show other bugs) drivers
Version: 4.19-023.x
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: GuixinLiu
QA Contact: shuming
URL:
Whiteboard:
Keywords: CVE
Depends on:
Blocks:
 
Reported: 2023-03-04 11:28 UTC by zhangqiangwe
Modified: 2023-07-05 15:38 UTC (History)
2 users (show)

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Description zhangqiangwe 2023-03-04 11:28:12 UTC 
Description of problem:

As the potential failure of the kvmalloc_array(),
it should be better to check and restore the 'data'
if fails in order to avoid the dereference of the
NULL pointer.

Additional info:

See upstream:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=886e44c9298a6b428ae046e2fa092ca52e822e6a
Comment 1 maqiao alibaba_cloud_group 2023-07-05 15:38:49 UTC 
merged: https://gitee.com/anolis/cloud-kernel/pulls/1354