CVE-2025-71120
SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jan 14, 2026 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
5866efa8cbfbadf3905072798e96652faf02dbe8 < a8f1e445ce3545c90d69c9e8ff8f7821825fe810 5866efa8cbfbadf3905072798e96652faf02dbe8 < 4dedb6a11243a5c9eb9dbb97bca3c98bd725e83d 5866efa8cbfbadf3905072798e96652faf02dbe8 < f9e53f69ac3bc4ef568b08d3542edac02e83fefd 5866efa8cbfbadf3905072798e96652faf02dbe8 < 7452d53f293379e2c38cfa8ad0694aa46fc4788b 5866efa8cbfbadf3905072798e96652faf02dbe8 < a2c6f25ab98b423f99ccd94874d655b8bcb01a19 5866efa8cbfbadf3905072798e96652faf02dbe8 < 1c8bb965e9b0559ff0f5690615a527c30f651dd8 5866efa8cbfbadf3905072798e96652faf02dbe8 < d4b69a6186b215d2dc1ebcab965ed88e8d41768d 66ed7b413d31c6ff23901ac4443b1cc1af2f6113 7be8c165dc81564705e8e0b72d398ef708f67eaa
Linux / Linux
5.5
References
git.kernel.org: https://git.kernel.org/stable/c/a8f1e445ce3545c90d69c9e8ff8f7821825fe810 git.kernel.org: https://git.kernel.org/stable/c/4dedb6a11243a5c9eb9dbb97bca3c98bd725e83d git.kernel.org: https://git.kernel.org/stable/c/f9e53f69ac3bc4ef568b08d3542edac02e83fefd git.kernel.org: https://git.kernel.org/stable/c/7452d53f293379e2c38cfa8ad0694aa46fc4788b git.kernel.org: https://git.kernel.org/stable/c/a2c6f25ab98b423f99ccd94874d655b8bcb01a19 git.kernel.org: https://git.kernel.org/stable/c/1c8bb965e9b0559ff0f5690615a527c30f651dd8 git.kernel.org: https://git.kernel.org/stable/c/d4b69a6186b215d2dc1ebcab965ed88e8d41768d