CVE-2024-50287: media: v4l2-tpg: prevent the risk of a division by zero
In the Linux kernel, the following vulnerability has been resolved:
media: v4l2-tpg: prevent the risk of a division by zero
As reported by Coverity, the logic at tpgprecalculateline() blindly rescales the buffer even when scaledwitdh is equal to zero. If this ever happens, this will cause a division by zero.
Instead, add a WARNONONCE() to trigger such cases and return without doing any precalculation.
Other sources
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— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1 - Upgrade
Upgrade
debian/linux-6.1to a version that resolves this vulnerability.Fixed in 6.1.129-1~deb11u1 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 5.15.173.1-1 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.64.2-1
Event History
Frequently Asked Questions
What does CVE-2024-50287 involve?
CVE-2024-50287 addresses a division by zero vulnerability in the Linux kernel's video for Linux 2 (v4l2-tpg) related to the logic in tpg_precalculate_line().
What is the severity of CVE-2024-50287?
The severity of CVE-2024-50287 is generally considered to be moderate, as it could potentially allow for denial of service conditions.
How do I fix CVE-2024-50287?
To fix CVE-2024-50287, update to a patched version of the Linux kernel that addresses this vulnerability.
Which versions of the Linux kernel are affected by CVE-2024-50287?
CVE-2024-50287 affects multiple versions of the Linux kernel from 3.18 up to and including 6.12-rc6.
Is CVE-2024-50287 exploitable remotely?
CVE-2024-50287 is not directly exploitable remotely as it pertains to local kernel operations but could lead to local denial of service.