CVE-2021-47028: mt76: mt7915: fix txrate reporting
In the Linux kernel, the following vulnerability has been resolved:
mt76: mt7915: fix txrate reporting
Properly check rateinfo to fix unexpected reporting.
[ 1215.161863] Call trace: [ 1215.164307] cfg80211calculatebitrate+0x124/0x200 [cfg80211] [ 1215.170139] ieee80211supdatemetric+0x80/0xc0 [mac80211] [ 1215.175624] ieee80211txstatusext+0x508/0x838 [mac80211] [ 1215.181190] mt7915mcugetrxrate+0x28c/0x8d0 [mt7915e] [ 1215.186580] mt7915mactxfree+0x324/0x7c0 [mt7915e] [ 1215.191623] mt7915queuerxskb+0xa8/0xd0 [mt7915e] [ 1215.196582] mt76dmacleanup+0x7b0/0x11d0 [mt76] [ 1215.201276] napipoll+0x38/0xf8 [ 1215.204668] napiworkfn+0x40/0x80 [ 1215.208062] processonework+0x1fc/0x390 [ 1215.212062] workerthread+0x48/0x4d0 [ 1215.215715] kthread+0x120/0x128 [ 1215.218935] retfromfork+0x10/0x1c
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-47028?
CVE-2021-47028 is classified as a low-severity vulnerability in the Linux kernel.
How do I fix CVE-2021-47028?
To fix CVE-2021-47028, upgrade your Linux kernel to a version higher than 5.12.4 or ensure you're on the patch released for versions 5.8 to 5.11.21.
What versions of the Linux kernel are affected by CVE-2021-47028?
CVE-2021-47028 affects Linux kernel versions between 5.8 and 5.11.21, as well as 5.12 up to 5.12.4.
What component of the Linux kernel is impacted by CVE-2021-47028?
CVE-2021-47028 impacts the mt76 driver component responsible for rate information reporting.
Is there an exploit available for CVE-2021-47028?
There is no known public exploit for CVE-2021-47028 as it is categorized with low severity.