{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-06T06:16:48.095","vulnerabilities":[{"cve":{"id":"CVE-2024-26826","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-04-17T10:15:09.183","lastModified":"2025-03-27T20:57:04.587","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix data re-injection from stale subflow\n\nWhen the MPTCP PM detects that a subflow is stale, all the packet\nscheduler must re-inject all the mptcp-level unacked data. To avoid\nacquiring unneeded locks, it first try to check if any unacked data\nis present at all in the RTX queue, but such check is currently\nbroken, as it uses TCP-specific helper on an MPTCP socket.\n\nFunnily enough fuzzers and static checkers are happy, as the accessed\nmemory still belongs to the mptcp_sock struct, and even from a\nfunctional perspective the recovery completed successfully, as\nthe short-cut test always failed.\n\nA recent unrelated TCP change - commit d5fed5addb2b (\"tcp: reorganize\ntcp_sock fast path variables\") - exposed the issue, as the tcp field\nreorganization makes the mptcp code always skip the re-inection.\n\nFix the issue dropping the bogus call: we are on a slow path, the early\noptimization proved once again to be evil."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mptcp: corrige la reinyección de datos desde un subflujo obsoleto Cuando MPTCP PM detecta que un subflujo está obsoleto, todo el programador de paquetes debe reinyectar todos los datos no codificados del nivel mptcp. Para evitar adquirir bloqueos innecesarios, primero intenta verificar si hay datos no bloqueados presentes en la cola RTX, pero dicha verificación actualmente no funciona, ya que utiliza un asistente específico de TCP en un socket MPTCP. Curiosamente, los fuzzers y los comprobadores estáticos están contentos, ya que la memoria a la que se accede todavía pertenece a la estructura mptcp_sock, e incluso desde una perspectiva funcional la recuperación se completó con éxito, ya que la prueba de acceso directo siempre fallaba. Un cambio reciente de TCP no relacionado (commit d5fed5addb2b (\"tcp: reorganizar las variables de ruta rápida de tcp_sock\")) expuso el problema, ya que la reorganización del campo tcp hace que el código mptcp siempre omita la reinección. Solucione el problema eliminando la llamada falsa: estamos en un camino lento, la optimización inicial demostró una vez más ser mala."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.149","matchCriteriaId":"5DAC8D7B-7B93-476C-86C0-E4A247061C4E"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.79","matchCriteriaId":"656E2F29-1779-4EFC-AA64-8F984E2885B1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.18","matchCriteriaId":"BD961E49-FEDA-47CF-BF23-4D2BD942B4E0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.7.6","matchCriteriaId":"C6D6A5C8-7308-42A9-8A72-ABF3DEA4BB82"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*","matchCriteriaId":"B9F4EA73-0894-400F-A490-3A397AB7A517"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*","matchCriteriaId":"056BD938-0A27-4569-B391-30578B309EE3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/624902eab7abcb8731b333ec73f206d38d839cd8","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/6673d9f1c2cd984390550dbdf7d5ae07b20abbf8","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/6f95120f898b40d13fd441225ef511307853c9c2","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b609c783c535493aa3fca22c7e40a120370b1ca5","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b6c620dc43ccb4e802894e54b651cf81495e9598","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/624902eab7abcb8731b333ec73f206d38d839cd8","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/6673d9f1c2cd984390550dbdf7d5ae07b20abbf8","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/6f95120f898b40d13fd441225ef511307853c9c2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b609c783c535493aa3fca22c7e40a120370b1ca5","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b6c620dc43ccb4e802894e54b651cf81495e9598","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}