{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-46102", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.097Z", "datePublished": "2026-05-27T12:59:09.526Z", "dateUpdated": "2026-08-05T12:29:38.661Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:29:38.661Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: strparser: fix skb_head leak in strp_abort_strp()\n\nWhen the stream parser is aborted, for example after a message assembly timeout,\nit can still hold a reference to a partially assembled message in\nstrp->skb_head.\n\nThat skb is not released in strp_abort_strp(), which leaks the partially\nassembled message and can be triggered repeatedly to exhaust memory.\n\nFix this by freeing strp->skb_head and resetting the parser state in the\nabort path. Leave strp_stop() unchanged so final cleanup still happens in\nstrp_done() after the work and timer have been synchronized." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:N - The strparser parses data received from a remote TCP peer (espintcp ESP-in-TCP framing, sockmap framed protocols); the leak is driven by a remote peer sending a partial length-prefixed frame that never completes.\nAC:L - The attacker reliably sends an incomplete framed message and simply lets the message-assembly timer expire; this trigger is fully under the attacker's control.\nPR:N - The framing parse (length-prefix read) occurs at the stream layer before any authentication of the payload, so a remote peer needs no privileges on the target to send partial frames and trigger the leak.\nUI:N - No victim interaction is required; the leak is triggered solely by the attacker's network data and the timeout firing.\nS:U - The leaked skb is kernel memory within the same security authority; no security boundary is crossed.\nC:N - The leaked partial-message skb is orphaned, not exposed to the attacker; the bug discloses no information.\nI:N - Nothing is overwritten or modified; the parser is stopped and the dangling pointer is never reused, so there is no integrity impact.\nA:H - Each abort leaks a partial message (up to sk_rcvbuf) and the commit notes it can be triggered repeatedly to exhaust memory, leading to kernel-wide memory exhaustion / OOM denial of service." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/strparser/strparser.c" ], "versions": [ { "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a", "lessThan": "d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3", "status": "affected", "versionType": "git" }, { "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a", "lessThan": "a470ed71c906cc8cbad0d74c9942216698911f8b", "status": "affected", "versionType": "git" }, { "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a", "lessThan": "c2e57695ec9ff9d42f23de70f3805199153d007b", "status": "affected", "versionType": "git" }, { "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a", "lessThan": "e9ae00490d474757c0f9c65073de83e6bb1e5a00", "status": "affected", "versionType": "git" }, { "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a", "lessThan": "5327dad2ffe9c1b49881dd6d51ff3c6893847568", "status": "affected", "versionType": "git" }, { "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a", "lessThan": "19ca9475f18f991735f98a22e735c43e95e6298d", "status": "affected", "versionType": "git" }, { "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a", "lessThan": "56082f442023db9be1a5a29d4ee361de4017c0b7", "status": "affected", "versionType": "git" }, { "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a", "lessThan": "fe72340daaf1af588be88056faf98965f39e6032", "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/strparser/strparser.c" ], "versions": [ { "version": "4.9", "status": "affected" }, { "version": "0", "lessThan": "4.9", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.258", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.86", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.27", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.4", "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": "4.9", "versionEndExcluding": "5.10.258" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "5.15.209" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "6.1.175" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "6.6.140" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "6.12.86" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "6.18.27" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "7.0.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "7.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3" }, { "url": "https://git.kernel.org/stable/c/a470ed71c906cc8cbad0d74c9942216698911f8b" }, { "url": "https://git.kernel.org/stable/c/c2e57695ec9ff9d42f23de70f3805199153d007b" }, { "url": "https://git.kernel.org/stable/c/e9ae00490d474757c0f9c65073de83e6bb1e5a00" }, { "url": "https://git.kernel.org/stable/c/5327dad2ffe9c1b49881dd6d51ff3c6893847568" }, { "url": "https://git.kernel.org/stable/c/19ca9475f18f991735f98a22e735c43e95e6298d" }, { "url": "https://git.kernel.org/stable/c/56082f442023db9be1a5a29d4ee361de4017c0b7" }, { "url": "https://git.kernel.org/stable/c/fe72340daaf1af588be88056faf98965f39e6032" } ], "title": "net: strparser: fix skb_head leak in strp_abort_strp()", "x_generator": { "engine": "bippy-1.2.0" } } } }