{"id":"CVE-2026-72374","title":"afs: Fix callback service message parsers to pass through -EAGAIN","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix callback service message parsers to pass through -EAGAIN\n\nThe AFS filesystem client uses an rxrpc server to listen for callback\nnotifications.  Each callback c…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 26b737b3769e92493fe94c34620399d93ca231ae","Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 09c67a7ded481482155b836c8c7f078a3075f8de","Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 239cd337c9d047e7097f5b2ebbb41ddfb8180bc6","Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 5a39b145a8fb49f316e7ec1f29ba51d68095c7e4","Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 772850871a2e772e26f9d93f1e9ddd413b3eeaa4","Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 0acbc09d2aca0432af45cec114f20d55ceafaec4","Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < f14dd036fad3d359f26f1282199cec06b3a9362b","Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 0f36469d7ce98b362934113c550d08bb0c784231","Linux 4.9"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T18:48:10.468561Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:55:20.697Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72374","references":[{"url":"https://git.kernel.org/stable/c/26b737b3769e92493fe94c34620399d93ca231ae"},{"url":"https://git.kernel.org/stable/c/09c67a7ded481482155b836c8c7f078a3075f8de"},{"url":"https://git.kernel.org/stable/c/239cd337c9d047e7097f5b2ebbb41ddfb8180bc6"},{"url":"https://git.kernel.org/stable/c/5a39b145a8fb49f316e7ec1f29ba51d68095c7e4"},{"url":"https://git.kernel.org/stable/c/772850871a2e772e26f9d93f1e9ddd413b3eeaa4"},{"url":"https://git.kernel.org/stable/c/0acbc09d2aca0432af45cec114f20d55ceafaec4"},{"url":"https://git.kernel.org/stable/c/f14dd036fad3d359f26f1282199cec06b3a9362b"},{"url":"https://git.kernel.org/stable/c/0f36469d7ce98b362934113c550d08bb0c784231"}],"tags":["cve.org"],"epss":0.00716,"epssPercentile":0.5284,"ingestedAt":"2026-10-16T19:46:24.403Z","slug":"CVE-2026-72374","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix callback service message parsers to pass through -EAGAIN\n\nThe AFS filesystem client uses an rxrpc server to listen for callback\nnotifications.  Each callback call type handler has a delivery function\nthat parses the incoming request stream, and this should return -EAGAIN the\nlast packet hasn't yet been seen, but all currently queued received data is\nconsumed.  afs_extract_data() does this, but the -EAGAIN return is switched\nto 0 inadvertantly\n\nFix callback service message parsers to pass through -EAGAIN\n\n## Affected\n\n- `Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 26b737b3769e92493fe94c34620399d93ca231ae`\n- `Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 09c67a7ded481482155b836c8c7f078a3075f8de`\n- `Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 239cd337c9d047e7097f5b2ebbb41ddfb8180bc6`\n- `Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 5a39b145a8fb49f316e7ec1f29ba51d68095c7e4`\n- `Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 772850871a2e772e26f9d93f1e9ddd413b3eeaa4`\n- `Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 0acbc09d2aca0432af45cec114f20d55ceafaec4`\n- `Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < f14dd036fad3d359f26f1282199cec06b3a9362b`\n- `Linux >= d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 < 0f36469d7ce98b362934113c550d08bb0c784231`\n- `Linux 4.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}