Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix overrun check in netfs_extract_user_iter() Fix netfs_extract_user_iter() so that if iov_iter_extract_pages() overfills pages[], then those pages don't get included in the iterator constructed at the end of the function. If there was an overfill, memory corruption has already happened.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.3, < 6.6.142 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/00efe58bbdcc93272d579ca24bfc912563f4a204Patch
- https://git.kernel.org/stable/c/0ef37eef83fad3542ee06db2940433ae1a92b39dPatch
- https://git.kernel.org/stable/c/96cc3beb2390ba9f9c128c5733c0ccfe450dd4f9Patch
- https://git.kernel.org/stable/c/afeb32d9bf9aaeea51d0f723a19f14afb73bd94dPatch
- https://git.kernel.org/stable/c/f48b9157f0f611fa436c360648603d5ded719b12Patch
FAQ
What is CVE-2026-64217?
CVE-2026-64217 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: netfs: Fix overrun check in netfs_extract_user_iter() Fix netfs_extract_user_iter() so that if iov_iter_extract_pages() overfills ...
How severe is CVE-2026-64217?
CVE-2026-64217 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-2026-64217?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.