{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74435", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.896Z", "datePublished": "2026-08-15T05:59:34.073Z", "dateUpdated": "2026-08-15T05:59:34.073Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:59:34.073Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: rxrpc_verify_data ensure rx_dec_buffer alloc\n\nrxrpc_recvmsg_data() calls rxrpc_verify_data() whenever the\nrxrpc_call.rx_dec_buffer is unallocated and assumes that upon\nsuccessful return that rx_dec_buffer must be allocated.\nHowever, rxrpc_verify_data() does not request an allocation if\nthe rxrpc_skb_priv.len is zero.\n\nIn addition, failure to allocate rx_dec_buffer will result in a\ncall to skb_copy_bits() with a NULL destination which can\ntrigger a NULL pointer dereference.\n\nTo prevent these issues rxrpc_verify_data() is modified to\nalways attempt to allocate the rxrpc_call.rx_dec_buffer if it\nis NULL.\n\nThis issue was identified with assistance of a private\nsashiko instance."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/rxrpc/recvmsg.c"], "versions": [{"version": "a05bf6d9e621fa71e89ccebe3047ba45218d7b38", "lessThan": "8bbede0afced346b24e4fbde0c68cf12980ba948", "status": "affected", "versionType": "git"}, {"version": "b94a6ccbaf1104dd980150a65fdeb2f69d17d2f5", "lessThan": "6563b4eb38c35d75892445bcf8aacdc29914821c", "status": "affected", "versionType": "git"}, {"version": "46cb765e2e5ad52303ea157e10d370bb6b7acbbf", "lessThan": "d3b642cf95d48234590cc91450d8705a9bf6b540", "status": "affected", "versionType": "git"}, {"version": "d2bc90cf6c75cb96d2ce549be6c35efa3099d25b", "lessThan": "a962bc8508592c4d51092edac68579bd8b18fe44", "status": "affected", "versionType": "git"}, {"version": "d2bc90cf6c75cb96d2ce549be6c35efa3099d25b", "lessThan": "16c8ae9735c5bd7e54dd7478d6348e0fc860842d", "status": "affected", "versionType": "git"}, {"version": "c580087743712112778a06d65a4074053072d7bf", "status": "affected", "versionType": "git"}, {"version": "6.6.143", "lessThan": "6.6.145", "status": "affected", "versionType": "semver"}, {"version": "6.12.93", "lessThan": "6.12.97", "status": "affected", "versionType": "semver"}, {"version": "6.18.35", "lessThan": "6.18.40", "status": "affected", "versionType": "semver"}, {"version": "7.0.11", "lessThan": "7.1", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/rxrpc/recvmsg.c"], "versions": 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"versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18.35", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.2-rc1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8bbede0afced346b24e4fbde0c68cf12980ba948"}, {"url": "https://git.kernel.org/stable/c/6563b4eb38c35d75892445bcf8aacdc29914821c"}, {"url": "https://git.kernel.org/stable/c/d3b642cf95d48234590cc91450d8705a9bf6b540"}, {"url": "https://git.kernel.org/stable/c/a962bc8508592c4d51092edac68579bd8b18fe44"}, {"url": "https://git.kernel.org/stable/c/16c8ae9735c5bd7e54dd7478d6348e0fc860842d"}], "title": "rxrpc: rxrpc_verify_data ensure rx_dec_buffer alloc", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/rxrpc/recvmsg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "8bbede0afced346b24e4fbde0c68cf12980ba948", "status": "affected", "version": "a05bf6d9e621fa71e89ccebe3047ba45218d7b38", "versionType": "git"}, {"lessThan": "6563b4eb38c35d75892445bcf8aacdc29914821c", "status": "affected", "version": "b94a6ccbaf1104dd980150a65fdeb2f69d17d2f5", "versionType": "git"}, {"lessThan": "d3b642cf95d48234590cc91450d8705a9bf6b540", "status": "affected", "version": "46cb765e2e5ad52303ea157e10d370bb6b7acbbf", "versionType": "git"}, {"lessThan": "a962bc8508592c4d51092edac68579bd8b18fe44", "status": "affected", "version": "d2bc90cf6c75cb96d2ce549be6c35efa3099d25b", "versionType": "git"}, {"lessThan": "16c8ae9735c5bd7e54dd7478d6348e0fc860842d", "status": "affected", "version": "d2bc90cf6c75cb96d2ce549be6c35efa3099d25b", "versionType": "git"}, {"status": "affected", "version": "c580087743712112778a06d65a4074053072d7bf", "versionType": "git"}, {"lessThan": "6.6.145", "status": "affected", "version": "6.6.143", "versionType": "semver"}, {"lessThan": "6.12.97", "status": "affected", "version": "6.12.93", "versionType": "semver"}, {"lessThan": "6.18.40", "status": "affected", "version": "6.18.35", "versionType": "semver"}, {"lessThan": "7.1", "status": "affected", "version": "7.0.11", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/rxrpc/recvmsg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.1"}, {"lessThan": "7.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "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-rc1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: rxrpc_verify_data ensure rx_dec_buffer alloc\n\nrxrpc_recvmsg_data() calls rxrpc_verify_data() whenever the\nrxrpc_call.rx_dec_buffer is unallocated and assumes that upon\nsuccessful return that rx_dec_buffer must be allocated.\nHowever, rxrpc_verify_data() does not request an allocation if\nthe rxrpc_skb_priv.len is zero.\n\nIn addition, failure to allocate rx_dec_buffer will result in a\ncall to skb_copy_bits() with a NULL destination which can\ntrigger a NULL pointer dereference.\n\nTo prevent these issues rxrpc_verify_data() is modified to\nalways attempt to allocate the rxrpc_call.rx_dec_buffer if it\nis NULL.\n\nThis issue was identified with assistance of a private\nsashiko instance."}], "id": "CVE-2026-74435", "lastModified": "2026-08-15T06:22:45.607", "metrics": {}, "published": "2026-08-15T06:22:45.607", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/16c8ae9735c5bd7e54dd7478d6348e0fc860842d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6563b4eb38c35d75892445bcf8aacdc29914821c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8bbede0afced346b24e4fbde0c68cf12980ba948"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a962bc8508592c4d51092edac68579bd8b18fe44"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d3b642cf95d48234590cc91450d8705a9bf6b540"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}