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{"descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: ensure snd_una is properly initialized on connect\n\nThis is strictly related to commit fb7a0d334894 (\"mptcp: ensure snd_nxt\nis properly initialized on connect\"). It turns out that syzkaller can\ntrigger the retransmit after fallback and before processing any other\nincoming packet - so that snd_una is still left uninitialized.\n\nAddress the issue explicitly initializing snd_una together with snd_nxt\nand write_seq."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mptcp: aseg\u00farese de que snd_una se inicialice correctamente al conectarse. Esto est\u00e1 estrictamente relacionado con el commit fb7a0d334894 (\"mptcp: aseg\u00farese de que snd_nxt se inicialice correctamente al conectarse\"). Resulta que syzkaller puede activar la retransmisi\u00f3n despu\u00e9s del respaldo y antes de procesar cualquier otro paquete entrante, de modo que snd_una a\u00fan permanece sin inicializar. Solucione el problema al inicializar expl\u00edcitamente snd_una junto con snd_nxt y write_seq."}], "id": "CVE-2024-40931", "lastModified": "2024-11-21T09:31:53.693", "metrics": {}, "published": "2024-07-12T13:15:15.750", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/208cd22ef5e57f82d38ec11c1a1703f9401d6dde"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7b9c7fc8600b64a86e4b47b2d190bba380267726"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8031b58c3a9b1db3ef68b3bd749fbee2e1e1aaa3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ef473bf1dd7e8dd08bcc04b9e2d1bfed69a0a7ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f03c46eabb3a67bd2993e237ab5517f00a5f1813"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f1f0a46f8bb8890b90ab7194f0a0c8fe2a3fb57f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/208cd22ef5e57f82d38ec11c1a1703f9401d6dde"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/7b9c7fc8600b64a86e4b47b2d190bba380267726"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/8031b58c3a9b1db3ef68b3bd749fbee2e1e1aaa3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/ef473bf1dd7e8dd08bcc04b9e2d1bfed69a0a7ce"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/f03c46eabb3a67bd2993e237ab5517f00a5f1813"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/f1f0a46f8bb8890b90ab7194f0a0c8fe2a3fb57f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

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