{"id":"CVE-2026-72374","title":"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","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","cwe":["CWE-393"],"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 9"],"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:17:25.753","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72374","references":[{"url":"https://git.kernel.org/stable/c/09c67a7ded481482155b836c8c7f078a3075f8de","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0acbc09d2aca0432af45cec114f20d55ceafaec4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0f36469d7ce98b362934113c550d08bb0c784231","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/239cd337c9d047e7097f5b2ebbb41ddfb8180bc6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/26b737b3769e92493fe94c34620399d93ca231ae","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5a39b145a8fb49f316e7ec1f29ba51d68095c7e4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/772850871a2e772e26f9d93f1e9ddd413b3eeaa4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f14dd036fad3d359f26f1282199cec06b3a9362b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72374.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-72374"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2516650"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72374"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72374"},{"url":"https://lore.kernel.org/linux-cve-announce/2026081516-CVE-2026-72374-ab30@gregkh/T"}],"tags":["nvd","csaf","vex","red-hat","cve.org","score-dispute"],"epss":0.00716,"epssPercentile":0.53584,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T18:48:10.468561Z"},"scores":{"nvd":7.5,"vendor":5.5,"cna":7.5},"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## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72374.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":230301,"id":"CVE-2026-72374","ts":1793130916091,"field":"cvss","old":"5.5","new":"7.5"},{"seq":230300,"id":"CVE-2026-72374","ts":1793130916091,"field":"severity","old":"medium","new":"high"},{"seq":223639,"id":"CVE-2026-72374","ts":1792238344110,"field":"cvss","old":"7.5","new":"5.5"},{"seq":223638,"id":"CVE-2026-72374","ts":1792238344110,"field":"severity","old":"high","new":"medium"}]}