Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: davinci: vpif: fix use-after-free on driver unbind The driver allocates and registers two platform device structures during probe, but the devices were never deregistered on driver unbind. This results in a use-after-free on driver unbind as the device structures were allocated using devres and would be freed by driver core when remove() returns. Fix this by adding the missing deregistration calls to the remove() callback and failing probe on registration errors. Note that the platform device structures must be freed using a proper release callback to avoid leaking associated resources like device names.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.13, < 5.15.54 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/43acb728bbc40169d2e2425e84a80068270974bePatch
- https://git.kernel.org/stable/c/6512c3c39cb6b573b791ce45365818a38b76afbePatch
- https://git.kernel.org/stable/c/9ffc602e14d7b9f7e7cb2f67e18dfef9ef8af676Patch
- https://git.kernel.org/stable/c/b5a3bb7f6f164eb6ee74ef4898dcd019b2063448Patch
FAQ
What is CVE-2021-47653?
CVE-2021-47653 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: media: davinci: vpif: fix use-after-free on driver unbind The driver allocates and registers two platform device structures during...
How severe is CVE-2021-47653?
CVE-2021-47653 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47653?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.