{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-71120","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:30:19.654Z","datePublished":"2026-01-14T15:06:07.194Z","dateUpdated":"2026-05-11T21:55:15.291Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:55:15.291Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nSUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf\n\nA zero length gss_token results in pages == 0 and in_token->pages[0]\nis NULL. The code unconditionally evaluates\npage_address(in_token->pages[0]) for the initial memcpy, which can\ndereference NULL even when the copy length is 0. Guard the first\nmemcpy so it only runs when length > 0."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/sunrpc/auth_gss/svcauth_gss.c"],"versions":[{"version":"5866efa8cbfbadf3905072798e96652faf02dbe8","lessThan":"a8f1e445ce3545c90d69c9e8ff8f7821825fe810","status":"affected","versionType":"git"},{"version":"5866efa8cbfbadf3905072798e96652faf02dbe8","lessThan":"4dedb6a11243a5c9eb9dbb97bca3c98bd725e83d","status":"affected","versionType":"git"},{"version":"5866efa8cbfbadf3905072798e96652faf02dbe8","lessThan":"f9e53f69ac3bc4ef568b08d3542edac02e83fefd","status":"affected","versionType":"git"},{"version":"5866efa8cbfbadf3905072798e96652faf02dbe8","lessThan":"7452d53f293379e2c38cfa8ad0694aa46fc4788b","status":"affected","versionType":"git"},{"version":"5866efa8cbfbadf3905072798e96652faf02dbe8","lessThan":"a2c6f25ab98b423f99ccd94874d655b8bcb01a19","status":"affected","versionType":"git"},{"version":"5866efa8cbfbadf3905072798e96652faf02dbe8","lessThan":"1c8bb965e9b0559ff0f5690615a527c30f651dd8","status":"affected","versionType":"git"},{"version":"5866efa8cbfbadf3905072798e96652faf02dbe8","lessThan":"d4b69a6186b215d2dc1ebcab965ed88e8d41768d","status":"affected","versionType":"git"},{"version":"66ed7b413d31c6ff23901ac4443b1cc1af2f6113","status":"affected","versionType":"git"},{"version":"7be8c165dc81564705e8e0b72d398ef708f67eaa","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/sunrpc/auth_gss/svcauth_gss.c"],"versions":[{"version":"5.5","status":"affected"},{"version":"0","lessThan":"5.5","status":"unaffected","versionType":"semver"},{"version":"5.10.248","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.198","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.160","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.120","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.64","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.3","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.248"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.15.198"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.1.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.6.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.12.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.18.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.99"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.15"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a8f1e445ce3545c90d69c9e8ff8f7821825fe810"},{"url":"https://git.kernel.org/stable/c/4dedb6a11243a5c9eb9dbb97bca3c98bd725e83d"},{"url":"https://git.kernel.org/stable/c/f9e53f69ac3bc4ef568b08d3542edac02e83fefd"},{"url":"https://git.kernel.org/stable/c/7452d53f293379e2c38cfa8ad0694aa46fc4788b"},{"url":"https://git.kernel.org/stable/c/a2c6f25ab98b423f99ccd94874d655b8bcb01a19"},{"url":"https://git.kernel.org/stable/c/1c8bb965e9b0559ff0f5690615a527c30f651dd8"},{"url":"https://git.kernel.org/stable/c/d4b69a6186b215d2dc1ebcab965ed88e8d41768d"}],"title":"SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf","x_generator":{"engine":"bippy-1.2.0"}}}}