Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: esp: fix skb leak with espintcp and async crypto When the TX queue for espintcp is full, esp_output_tail_tcp will return an error and not free the skb, because with synchronous crypto, the common xfrm output code will drop the packet for us. With async crypto (esp_output_done), we need to drop the skb when esp_output_tail_tcp returns an error.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.6, < 5.10.253 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0c0eef8ccd2413b0a10eb6bbd3442333b1e64dd2Patch
- https://git.kernel.org/stable/c/41aafca57de4a4c026701622bd4648f112a9edcdPatch
- https://git.kernel.org/stable/c/4820847e036ff1035b01b69ad68dfc17e7028fe9Patch
- https://git.kernel.org/stable/c/6a3ec6efbc4f90e0ccb2e71574f07351f19996f4Patch
- https://git.kernel.org/stable/c/6aa9841d917532d0f2d932d1ff2f3a94305aaf47Patch
- https://git.kernel.org/stable/c/88d386243ed374ac969dabd3bbc1409a31d81818Patch
- https://git.kernel.org/stable/c/aca3ad0c262f54a5b5c95dda80a48365997d1224Patch
- https://git.kernel.org/stable/c/df6f995358dc1f3c42484f5cfe241d7bd3e1cd15Patch
FAQ
What is CVE-2026-31518?
CVE-2026-31518 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: esp: fix skb leak with espintcp and async crypto When the TX queue for espintcp is full, esp_output_tail_tcp will return an error ...
How severe is CVE-2026-31518?
CVE-2026-31518 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-31518?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.