{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64025", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.027Z", "datePublished": "2026-07-19T15:39:17.178Z", "dateUpdated": "2026-07-19T15:39:17.178Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T15:39:17.178Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, skmsg: fix verdict sk_data_ready racing with ktls rx\n\nsk_psock_strp_data_ready() already checks tls_sw_has_ctx_rx() and\ndefers to psock->saved_data_ready when a TLS RX context is present,\navoiding a conflict with the TLS strparser's ownership of the receive\nqueue (commit e91de6afa81c, \"bpf: Fix running sk_skb program types\nwith ktls\").\n\nsk_psock_verdict_data_ready() has no equivalent guard. When a socket\nis inserted into a sockmap (BPF_SK_SKB_VERDICT) before TLS RX is\nconfigured, tls_sw_strparser_arm() saves sk_psock_verdict_data_ready\nas rx_ctx->saved_data_ready. On data arrival:\n\n tls_data_ready -> tls_strp_data_ready -> tls_rx_msg_ready\n -> saved_data_ready() = sk_psock_verdict_data_ready()\n -> tcp_read_skb() drains sk_receive_queue via __skb_unlink()\n without calling tcp_eat_skb(), so copied_seq is not advanced.\n\ntls_strp_msg_load() then finds tcp_inq() >= full_len (stale), calls\ntcp_recv_skb() on the now-empty queue, hits WARN_ON_ONCE(!first), and\nreturns with rx_ctx->strp.anchor.frag_list pointing at a psock-owned\n(potentially freed) skb. tls_decrypt_sg() subsequently walks that\nfrag_list: use-after-free.\n\nApply the same fix as sk_psock_strp_data_ready(): if a TLS RX context\nis present, call psock->saved_data_ready (sock_def_readable) to wake\nrecv() waiters and return immediately, leaving the receive queue\nuntouched. TLS retains sole ownership of the queue and decrypts the\nrecord normally through tls_sw_recvmsg()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/core/skmsg.c"], "versions": [{"version": "ef5659280eb13e8ac31c296f58cfdfa1684ac06b", "lessThan": "c9ea01768903ae47f210cd457af1dead6de7a9c3", "status": "affected", "versionType": "git"}, {"version": "ef5659280eb13e8ac31c296f58cfdfa1684ac06b", "lessThan": "7c8cf21bc4efb4af18d6096db3f8bd06d622251c", "status": "affected", "versionType": "git"}, {"version": "ef5659280eb13e8ac31c296f58cfdfa1684ac06b", "lessThan": "1861d369efd62d67796563bf3e01fc22e5626f8b", "status": "affected", "versionType": "git"}, {"version": "ef5659280eb13e8ac31c296f58cfdfa1684ac06b", "lessThan": "8a52139560f833c3975032e1f5762611e3a36d71", "status": "affected", "versionType": "git"}, {"version": "ef5659280eb13e8ac31c296f58cfdfa1684ac06b", "lessThan": "ddf8029623a1af20e984c040e89ff918158397ab", "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/core/skmsg.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.142", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.92", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.34", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "5.10", "versionEndExcluding": "6.6.142"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.12.92"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.18.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c9ea01768903ae47f210cd457af1dead6de7a9c3"}, {"url": "https://git.kernel.org/stable/c/7c8cf21bc4efb4af18d6096db3f8bd06d622251c"}, {"url": "https://git.kernel.org/stable/c/1861d369efd62d67796563bf3e01fc22e5626f8b"}, {"url": "https://git.kernel.org/stable/c/8a52139560f833c3975032e1f5762611e3a36d71"}, {"url": "https://git.kernel.org/stable/c/ddf8029623a1af20e984c040e89ff918158397ab"}], "title": "bpf, skmsg: fix verdict sk_data_ready racing with ktls rx", "x_generator": {"engine": "bippy-1.2.0"}}}}

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