{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-23T07:49:59.604","vulnerabilities":[{"cve":{"id":"CVE-2024-46858","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-09-27T13:15:17.353","lastModified":"2025-12-24T14:15:46.227","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: Fix uaf in __timer_delete_sync\n\nThere are two paths to access mptcp_pm_del_add_timer, result in a race\ncondition:\n\n     CPU1\t\t\t\tCPU2\n     ====                               ====\n     net_rx_action\n     napi_poll                          netlink_sendmsg\n     __napi_poll                        netlink_unicast\n     process_backlog                    netlink_unicast_kernel\n     __netif_receive_skb                genl_rcv\n     __netif_receive_skb_one_core       netlink_rcv_skb\n     NF_HOOK                            genl_rcv_msg\n     ip_local_deliver_finish            genl_family_rcv_msg\n     ip_protocol_deliver_rcu            genl_family_rcv_msg_doit\n     tcp_v4_rcv                         mptcp_pm_nl_flush_addrs_doit\n     tcp_v4_do_rcv                      mptcp_nl_remove_addrs_list\n     tcp_rcv_established                mptcp_pm_remove_addrs_and_subflows\n     tcp_data_queue                     remove_anno_list_by_saddr\n     mptcp_incoming_options             mptcp_pm_del_add_timer\n     mptcp_pm_del_add_timer             kfree(entry)\n\nIn remove_anno_list_by_saddr(running on CPU2), after leaving the critical\nzone protected by \"pm.lock\", the entry will be released, which leads to the\noccurrence of uaf in the mptcp_pm_del_add_timer(running on CPU1).\n\nKeeping a reference to add_timer inside the lock, and calling\nsk_stop_timer_sync() with this reference, instead of \"entry->add_timer\".\n\nMove list_del(&entry->list) to mptcp_pm_del_add_timer and inside the pm lock,\ndo not directly access any members of the entry outside the pm lock, which\ncan avoid similar \"entry->x\" uaf."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mptcp:pm: Se corrige uaf en __timer_delete_sync Hay dos rutas para acceder a mptcp_pm_del_add_timer, lo que genera una condición de carrera: CPU1 CPU2 ==== ==== net_rx_action napi_poll netlink_sendmsg __napi_poll netlink_unicast process_backlog netlink_unicast_kernel __netif_receive_skb genl_rcv __netif_receive_skb_one_core netlink_rcv_skb NF_HOOK genl_rcv_msg ip_local_deliver_finish genl_family_rcv_msg ip_protocol_deliver_rcu genl_family_rcv_msg_doit tcp_v4_rcv mptcp_pm_nl_flush_addrs_doit tcp_v4_do_rcv mptcp_nl_remove_addrs_list tcp_rcv_established mptcp_pm_remove_addrs_and_subflows tcp_data_queue remove_anno_list_by_saddr mptcp_incoming_options mptcp_pm_del_add_timer mptcp_pm_del_add_timer kfree(entrada) En remove_anno_list_by_saddr(que se ejecuta en la CPU2), después de salir de la zona crítica protegida por \"pm.lock\", se liberará la entrada, lo que lleva a la aparición de uaf en mptcp_pm_del_add_timer(que se ejecuta en la CPU1). Mantener una referencia a add_timer dentro del bloqueo y llamar a sk_stop_timer_sync() con esta referencia, en lugar de \"entrada->add_timer\". Mueva list_del(&entry->list) a mptcp_pm_del_add_timer y dentro del bloqueo pm, no acceda directamente a ningún miembro de la entrada fuera del bloqueo pm, lo que puede evitar un uaf \"entry->x\" similar."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.0,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.0,"impactScore":5.9}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-416"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.1.111","matchCriteriaId":"2B62FC78-DC08-42C4-9B1A-D1F4632DBBE5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.52","matchCriteriaId":"02ADDA94-95BB-484D-8E95-63C0428A28E3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.10.11","matchCriteriaId":"F5DB5367-F1F5-4200-B3B3-FDF8AFC3D255"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*","matchCriteriaId":"8B3CE743-2126-47A3-8B7C-822B502CF119"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*","matchCriteriaId":"4DEB27E7-30AA-45CC-8934-B89263EF3551"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*","matchCriteriaId":"E0005AEF-856E-47EB-BFE4-90C46899394D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*","matchCriteriaId":"39889A68-6D34-47A6-82FC-CD0BF23D6754"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*","matchCriteriaId":"B8383ABF-1457-401F-9B61-EE50F4C61F4F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*","matchCriteriaId":"B77A9280-37E6-49AD-B559-5B23A3B1DC3D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc7:*:*:*:*:*:*","matchCriteriaId":"DE5298B3-04B4-4F3E-B186-01A58B5C75A6"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0e7814b028cd50b3ff79659d23dfa9da6a1e75e1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/12134a652b0a10064844ea235173e70246eba6dc","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/3554482f4691571fc4b5490c17ae26896e62171c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6452b162549c7f9ef54655d3fb9977b9192e6e5b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/67409b358500c71632116356a0b065f112d7b707","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b4cd80b0338945a94972ac3ed54f8338d2da2076","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}