CVE-2026-64217high

netfs: Fix overrun check in netfs_extract_user_iter()

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.8epss 0.1%

exploitation probability

0.1%top 97% of all CVEs

observed exploitation

nono source reports it

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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/00efe58bbdcc93272d579ca24bfc912563f4a204 https://git.kernel.org/stable/c/0ef37eef83fad3542ee06db2940433ae1a92b39d https://git.kernel.org/stable/c/96cc3beb2390ba9f9c128c5733c0ccfe450dd4f9 https://git.kernel.org/stable/c/afeb32d9bf9aaeea51d0f723a19f14afb73bd94d https://git.kernel.org/stable/c/f48b9157f0f611fa436c360648603d5ded719b12