cve-2024-47724
Vulnerability from cvelistv5
Published
2024-10-21 12:13
Modified
2024-12-19 09:26
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: use work queue to process beacon tx event Commit 3a415daa3e8b ("wifi: ath11k: add P2P IE in beacon template") from Feb 28, 2024 (linux-next), leads to the following Smatch static checker warning: drivers/net/wireless/ath/ath11k/wmi.c:1742 ath11k_wmi_p2p_go_bcn_ie() warn: sleeping in atomic context The reason is that ath11k_bcn_tx_status_event() will directly call might sleep function ath11k_wmi_cmd_send() during RCU read-side critical sections. The call trace is like: ath11k_bcn_tx_status_event() -> rcu_read_lock() -> ath11k_mac_bcn_tx_event() -> ath11k_mac_setup_bcn_tmpl() …… -> ath11k_wmi_bcn_tmpl() -> ath11k_wmi_cmd_send() -> rcu_read_unlock() Commit 886433a98425 ("ath11k: add support for BSS color change") added the ath11k_mac_bcn_tx_event(), commit 01e782c89108 ("ath11k: fix warning of RCU usage for ath11k_mac_get_arvif_by_vdev_id()") added the RCU lock to avoid warning but also introduced this BUG. Use work queue to avoid directly calling ath11k_mac_bcn_tx_event() during RCU critical sections. No need to worry about the deletion of vif because cancel_work_sync() will drop the work if it doesn't start or block vif deletion until the running work is done. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/177b49dbf9c1d8f9f25a22ffafa416fc2c8aa6a3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6db232905e094e64abff1f18249905d068285e09Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dbd51da69dda1137723b8f66460bf99a9dac8dd2Patch
Impacted products
Vendor Product Version
Linux Linux Version: 3a415daa3e8ba65f1cc976c172a5ab69bdc17e69
Version: 3a415daa3e8ba65f1cc976c172a5ab69bdc17e69
Version: 3a415daa3e8ba65f1cc976c172a5ab69bdc17e69
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   Linux Linux Version: 6.10
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{
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                        id: "CVE-2024-47724",
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         affected: [
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               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "drivers/net/wireless/ath/ath11k/core.h",
                  "drivers/net/wireless/ath/ath11k/mac.c",
                  "drivers/net/wireless/ath/ath11k/wmi.c",
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               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: use work queue to process beacon tx event\n\nCommit 3a415daa3e8b (\"wifi: ath11k: add P2P IE in beacon template\")\nfrom Feb 28, 2024 (linux-next), leads to the following Smatch static\nchecker warning:\n\ndrivers/net/wireless/ath/ath11k/wmi.c:1742 ath11k_wmi_p2p_go_bcn_ie()\nwarn: sleeping in atomic context\n\nThe reason is that ath11k_bcn_tx_status_event() will directly call might\nsleep function ath11k_wmi_cmd_send() during RCU read-side critical\nsections. The call trace is like:\n\nath11k_bcn_tx_status_event()\n-> rcu_read_lock()\n-> ath11k_mac_bcn_tx_event()\n\t-> ath11k_mac_setup_bcn_tmpl()\n\t……\n\t\t-> ath11k_wmi_bcn_tmpl()\n\t\t\t-> ath11k_wmi_cmd_send()\n-> rcu_read_unlock()\n\nCommit 886433a98425 (\"ath11k: add support for BSS color change\") added the\nath11k_mac_bcn_tx_event(), commit 01e782c89108 (\"ath11k: fix warning\nof RCU usage for ath11k_mac_get_arvif_by_vdev_id()\") added the RCU lock\nto avoid warning but also introduced this BUG.\n\nUse work queue to avoid directly calling ath11k_mac_bcn_tx_event()\nduring RCU critical sections. No need to worry about the deletion of vif\nbecause cancel_work_sync() will drop the work if it doesn't start or\nblock vif deletion until the running work is done.\n\nTested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30",
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               url: "https://git.kernel.org/stable/c/177b49dbf9c1d8f9f25a22ffafa416fc2c8aa6a3",
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         title: "wifi: ath11k: use work queue to process beacon tx event",
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   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-47724",
      datePublished: "2024-10-21T12:13:58.267Z",
      dateReserved: "2024-09-30T16:00:12.956Z",
      dateUpdated: "2024-12-19T09:26:50.491Z",
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The call trace is like:\\n\\nath11k_bcn_tx_status_event()\\n-> rcu_read_lock()\\n-> ath11k_mac_bcn_tx_event()\\n\\t-> ath11k_mac_setup_bcn_tmpl()\\n\\t……\\n\\t\\t-> ath11k_wmi_bcn_tmpl()\\n\\t\\t\\t-> ath11k_wmi_cmd_send()\\n-> rcu_read_unlock()\\n\\nCommit 886433a98425 (\\\"ath11k: add support for BSS color change\\\") added the\\nath11k_mac_bcn_tx_event(), commit 01e782c89108 (\\\"ath11k: fix warning\\nof RCU usage for ath11k_mac_get_arvif_by_vdev_id()\\\") added the RCU lock\\nto avoid warning but also introduced this BUG.\\n\\nUse work queue to avoid directly calling ath11k_mac_bcn_tx_event()\\nduring RCU critical sections. No need to worry about the deletion of vif\\nbecause cancel_work_sync() will drop the work if it doesn't start or\\nblock vif deletion until the running work is done.\\n\\nTested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: ath11k: usar cola de trabajo para procesar evento beacon tx el commit 3a415daa3e8b (\\\"wifi: ath11k: agregar P2P IE en plantilla beacon\\\") del 28 de febrero de 2024 (linux-next) genera la siguiente advertencia del verificador estático de Smatch: drivers/net/wireless/ath/ath11k/wmi.c:1742 ath11k_wmi_p2p_go_bcn_ie() warn: durmiendo en contexto atómico La razón es que ath11k_bcn_tx_status_event() llamará directamente a la función de suspensión ath11k_wmi_cmd_send() durante las secciones críticas del lado de lectura de RCU. El seguimiento de la llamada es así: ath11k_bcn_tx_status_event() -> rcu_read_lock() -> ath11k_mac_bcn_tx_event() -> ath11k_mac_setup_bcn_tmpl() …… -> ath11k_wmi_bcn_tmpl() -> ath11k_wmi_cmd_send() -> rcu_read_unlock() el commit 886433a98425 (\\\"ath11k: agregar soporte para cambio de color BSS\\\") agregó ath11k_mac_bcn_tx_event(), el commit 01e782c89108 (\\\"ath11k: corregir advertencia de uso de RCU para ath11k_mac_get_arvif_by_vdev_id()\\\") agregó el bloqueo de RCU para evitar advertencias pero también introdujo este ERROR. Utilice la cola de trabajo para evitar llamar directamente a ath11k_mac_bcn_tx_event() durante las secciones críticas de RCU. No es necesario preocuparse por la eliminación de vif porque cancel_work_sync() descartará el trabajo si no comienza o bloqueará la eliminación de vif hasta que finalice el trabajo en ejecución. Probado en: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30\"}],\"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\":\"6.10\",\"versionEndExcluding\":\"6.10.13\",\"matchCriteriaId\":\"767D4D2D-C6E7-4B7D-9446-CFC8F8FF2FBB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.11\",\"versionEndExcluding\":\"6.11.2\",\"matchCriteriaId\":\"AB755D26-97F4-43B6-8604-CD076811E181\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/177b49dbf9c1d8f9f25a22ffafa416fc2c8aa6a3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6db232905e094e64abff1f18249905d068285e09\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dbd51da69dda1137723b8f66460bf99a9dac8dd2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
      vulnrichment: {
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