Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: at76c50x: fix use after free access in at76_disconnect The memory pointed to by priv is freed at the end of at76_delete_device function (using ieee80211_free_hw). But the code then accesses the udev field of the freed object to put the USB device. This may also lead to a memory leak of the usb device. Fix this by using udev from interface.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.17.1, < 5.4.293 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/152721cbae42713ecfbca6847e0f102ee6b19546Patch
- https://git.kernel.org/stable/c/27c7e63b3cb1a20bb78ed4a36c561ea4579fd7daPatch
- https://git.kernel.org/stable/c/3c619aec1f538333b56746d2f796aab1bca5c9a5Patch
- https://git.kernel.org/stable/c/5e7df74745700f059dc117a620e566964a2e8f2cPatch
- https://git.kernel.org/stable/c/6e4ab3e574c2a335b40fa1f70d1c54fcb58ab33fPatch
- https://git.kernel.org/stable/c/7ca513631fa6ad3011b8b9197cdde0f351103704Patch
- https://git.kernel.org/stable/c/a9682bfef2cf3802515a902e964d774e137be1b9Patch
- https://git.kernel.org/stable/c/c731cdfddcf1be1590d5ba8c9b508f98e3a2b3d6Patch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
FAQ
What is CVE-2025-37796?
CVE-2025-37796 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: wifi: at76c50x: fix use after free access in at76_disconnect The memory pointed to by priv is freed at the end of at76_delete_devi...
How severe is CVE-2025-37796?
CVE-2025-37796 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-2025-37796?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.