{"api_version":"1","generated_at":"2026-08-15T07:38:21+00:00","cve":"CVE-2026-74425","urls":{"html":"https://cve.report/CVE-2026-74425","api":"https://cve.report/api/cve/CVE-2026-74425.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74425","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74425"},"summary":{"title":"afs: handle CB.InitCallBackState3 requests without a server record","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nafs: handle CB.InitCallBackState3 requests without a server record\n\nThe cache manager callback path now attaches the server record to an\nincoming call through the rxrpc peer's app data.  That association is\nnot guaranteed to exist for every callback request, and most callback\nhandlers already tolerate that case.\n\nMake CB.InitCallBackState3 follow the same pattern by checking whether a\nserver record was attached before using it.  If the peer is not mapped\nto a server record, trace the request and ignore it, matching the\nexisting behaviour for other unmatched callback requests.\n\nThis keeps the callback handler consistent with the rest of the cache\nmanager service and avoids depending on peer state that may not be\navailable for a given request.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:44","updated_at":"2026-08-15 06:22:44"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f3cf725cd284b7912d5522babb44721bf38c8887","name":"https://git.kernel.org/stable/c/f3cf725cd284b7912d5522babb44721bf38c8887","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cc848a080f7a6848dfeef441722419fdcbfe9b8d","name":"https://git.kernel.org/stable/c/cc848a080f7a6848dfeef441722419fdcbfe9b8d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/42e3917cdbdc3d35e191c525687a6d5427f237fd","name":"https://git.kernel.org/stable/c/42e3917cdbdc3d35e191c525687a6d5427f237fd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0bd5f2786a878148190b4c7c259d01313d5f2357","name":"https://git.kernel.org/stable/c/0bd5f2786a878148190b4c7c259d01313d5f2357","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74425","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74425","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 39ba6af83a7f9dee3e6a7916f41a48bcbda54eba 42e3917cdbdc3d35e191c525687a6d5427f237fd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 40e8b52fe8c8ab6920ea5f59c5469b6918cce624 cc848a080f7a6848dfeef441722419fdcbfe9b8d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 40e8b52fe8c8ab6920ea5f59c5469b6918cce624 0bd5f2786a878148190b4c7c259d01313d5f2357 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 40e8b52fe8c8ab6920ea5f59c5469b6918cce624 f3cf725cd284b7912d5522babb44721bf38c8887 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/afs/cmservice.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"42e3917cdbdc3d35e191c525687a6d5427f237fd","status":"affected","version":"39ba6af83a7f9dee3e6a7916f41a48bcbda54eba","versionType":"git"},{"lessThan":"cc848a080f7a6848dfeef441722419fdcbfe9b8d","status":"affected","version":"40e8b52fe8c8ab6920ea5f59c5469b6918cce624","versionType":"git"},{"lessThan":"0bd5f2786a878148190b4c7c259d01313d5f2357","status":"affected","version":"40e8b52fe8c8ab6920ea5f59c5469b6918cce624","versionType":"git"},{"lessThan":"f3cf725cd284b7912d5522babb44721bf38c8887","status":"affected","version":"40e8b52fe8c8ab6920ea5f59c5469b6918cce624","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/afs/cmservice.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc2","versionStartIncluding":"6.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nafs: handle CB.InitCallBackState3 requests without a server record\n\nThe cache manager callback path now attaches the server record to an\nincoming call through the rxrpc peer's app data.  That association is\nnot guaranteed to exist for every callback request, and most callback\nhandlers already tolerate that case.\n\nMake CB.InitCallBackState3 follow the same pattern by checking whether a\nserver record was attached before using it.  If the peer is not mapped\nto a server record, trace the request and ignore it, matching the\nexisting behaviour for other unmatched callback requests.\n\nThis keeps the callback handler consistent with the rest of the cache\nmanager service and avoids depending on peer state that may not be\navailable for a given request."}],"providerMetadata":{"dateUpdated":"2026-08-15T05:59:27.806Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/42e3917cdbdc3d35e191c525687a6d5427f237fd"},{"url":"https://git.kernel.org/stable/c/cc848a080f7a6848dfeef441722419fdcbfe9b8d"},{"url":"https://git.kernel.org/stable/c/0bd5f2786a878148190b4c7c259d01313d5f2357"},{"url":"https://git.kernel.org/stable/c/f3cf725cd284b7912d5522babb44721bf38c8887"}],"title":"afs: handle CB.InitCallBackState3 requests without a server record","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74425","datePublished":"2026-08-15T05:59:27.806Z","dateReserved":"2026-08-15T05:44:03.894Z","dateUpdated":"2026-08-15T05:59:27.806Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:44","lastModifiedDate":"2026-08-15 06:22:44","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74425","Ordinal":"1","Title":"afs: handle CB.InitCallBackState3 requests without a server reco","CVE":"CVE-2026-74425","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74425","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nafs: handle CB.InitCallBackState3 requests without a server record\n\nThe cache manager callback path now attaches the server record to an\nincoming call through the rxrpc peer's app data.  That association is\nnot guaranteed to exist for every callback request, and most callback\nhandlers already tolerate that case.\n\nMake CB.InitCallBackState3 follow the same pattern by checking whether a\nserver record was attached before using it.  If the peer is not mapped\nto a server record, trace the request and ignore it, matching the\nexisting behaviour for other unmatched callback requests.\n\nThis keeps the callback handler consistent with the rest of the cache\nmanager service and avoids depending on peer state that may not be\navailable for a given request.","Type":"Description","Title":"afs: handle CB.InitCallBackState3 requests without a server reco"}]}}}