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vulnrichmentLinuxVULNRICHMENT:CVE-2024-42313
HistoryAug 17, 2024 - 9:09 a.m.

CVE-2024-42313 media: venus: fix use after free in vdec_close

2024-08-1709:09:17
Linux
github.com
1
linux kernel
vulnerability
use after free
vdec_close
firmware
hfi callbacks
decoder device
userspace
fixed
cancelling work

AI Score

7.2

Confidence

High

SSVC

Exploitation

none

Automatable

no

Technical Impact

partial

In the Linux kernel, the following vulnerability has been resolved:

media: venus: fix use after free in vdec_close

There appears to be a possible use after free with vdec_close().
The firmware will add buffer release work to the work queue through
HFI callbacks as a normal part of decoding. Randomly closing the
decoder device from userspace during normal decoding can incur
a read after free for inst.

Fix it by cancelling the work in vdec_close.

AI Score

7.2

Confidence

High

SSVC

Exploitation

none

Automatable

no

Technical Impact

partial