CVE-2024-46858 (GCVE-0-2024-46858)

Vulnerability from cvelistv5 – Published: 2024-09-27 12:42 – Updated: 2026-05-11 20:37
VLAI
Title
mptcp: pm: Fix uaf in __timer_delete_sync
Summary
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: Fix uaf in __timer_delete_sync There are two paths to access mptcp_pm_del_add_timer, result in a race condition: 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(entry) In remove_anno_list_by_saddr(running on CPU2), after leaving the critical zone protected by "pm.lock", the entry will be released, which leads to the occurrence of uaf in the mptcp_pm_del_add_timer(running on CPU1). Keeping a reference to add_timer inside the lock, and calling sk_stop_timer_sync() with this reference, instead of "entry->add_timer". Move list_del(&entry->list) to mptcp_pm_del_add_timer and inside the pm lock, do not directly access any members of the entry outside the pm lock, which can avoid similar "entry->x" uaf.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < 0e7814b028cd50b3ff79659d23dfa9da6a1e75e1 (git)
Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < 3554482f4691571fc4b5490c17ae26896e62171c (git)
Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < 67409b358500c71632116356a0b065f112d7b707 (git)
Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < 6452b162549c7f9ef54655d3fb9977b9192e6e5b (git)
Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < 12134a652b0a10064844ea235173e70246eba6dc (git)
Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < b4cd80b0338945a94972ac3ed54f8338d2da2076 (git)
Create a notification for this product.
Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.227 , ≤ 5.10.* (semver)
Unaffected: 5.15.168 , ≤ 5.15.* (semver)
Unaffected: 6.1.111 , ≤ 6.1.* (semver)
Unaffected: 6.6.52 , ≤ 6.6.* (semver)
Unaffected: 6.10.11 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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Mantener una referencia a add_timer dentro del bloqueo y llamar a sk_stop_timer_sync() con esta referencia, en lugar de \\\"entrada-\u0026gt;add_timer\\\". Mueva list_del(\u0026amp;entry-\u0026gt;list) a mptcp_pm_del_add_timer y dentro del bloqueo pm, no acceda directamente a ning\u00fan miembro de la entrada fuera del bloqueo pm, lo que puede evitar un uaf \\\"entry-\u0026gt;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\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T22:19:44.734Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-46858\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-29T13:57:46.692938Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-29T13:57:48.385Z\"}}], \"cna\": {\"title\": \"mptcp: pm: Fix uaf in __timer_delete_sync\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"00cfd77b9063dcdf3628a7087faba60de85a9cc8\", \"lessThan\": \"0e7814b028cd50b3ff79659d23dfa9da6a1e75e1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"00cfd77b9063dcdf3628a7087faba60de85a9cc8\", \"lessThan\": \"3554482f4691571fc4b5490c17ae26896e62171c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"00cfd77b9063dcdf3628a7087faba60de85a9cc8\", \"lessThan\": \"67409b358500c71632116356a0b065f112d7b707\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"00cfd77b9063dcdf3628a7087faba60de85a9cc8\", \"lessThan\": \"6452b162549c7f9ef54655d3fb9977b9192e6e5b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"00cfd77b9063dcdf3628a7087faba60de85a9cc8\", \"lessThan\": \"12134a652b0a10064844ea235173e70246eba6dc\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"00cfd77b9063dcdf3628a7087faba60de85a9cc8\", \"lessThan\": \"b4cd80b0338945a94972ac3ed54f8338d2da2076\", \"versionType\": \"git\"}], \"programFiles\": [\"net/mptcp/pm_netlink.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.10\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.10\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.227\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.168\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.111\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.52\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/mptcp/pm_netlink.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/0e7814b028cd50b3ff79659d23dfa9da6a1e75e1\"}, {\"url\": \"https://git.kernel.org/stable/c/3554482f4691571fc4b5490c17ae26896e62171c\"}, {\"url\": \"https://git.kernel.org/stable/c/67409b358500c71632116356a0b065f112d7b707\"}, {\"url\": \"https://git.kernel.org/stable/c/6452b162549c7f9ef54655d3fb9977b9192e6e5b\"}, {\"url\": \"https://git.kernel.org/stable/c/12134a652b0a10064844ea235173e70246eba6dc\"}, {\"url\": \"https://git.kernel.org/stable/c/b4cd80b0338945a94972ac3ed54f8338d2da2076\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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-\u003eadd_timer\\\".\\n\\nMove list_del(\u0026entry-\u003elist) 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-\u003ex\\\" uaf.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.227\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.168\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.111\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.52\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.11\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11\", \"versionStartIncluding\": \"5.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-12-24T13:21:35.775Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-46858\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-24T13:21:35.775Z\", \"dateReserved\": \"2024-09-11T15:12:18.291Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-09-27T12:42:49.167Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.