CVE-2025-71120

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf A zero length gss_token results in pages == 0 and in_token->pages[0] is NULL. The code unconditionally evaluates page_address(in_token->pages[0]) for the initial memcpy, which can dereference NULL even when the copy length is 0. Guard the first memcpy so it only runs when length > 0.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-25)

CWE

CWE-476

Published

2026-01-14

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/1c8bb965e9b0559ff0f5690615a527c30f651dd8
• https://git.kernel.org/stable/c/4dedb6a11243a5c9eb9dbb97bca3c98bd725e83d
• https://git.kernel.org/stable/c/7452d53f293379e2c38cfa8ad0694aa46fc4788b
• https://git.kernel.org/stable/c/a2c6f25ab98b423f99ccd94874d655b8bcb01a19
• https://git.kernel.org/stable/c/a8f1e445ce3545c90d69c9e8ff8f7821825fe810

Check your stackJSON