CVE-2024-26897 (GCVE-0-2024-26897)

Vulnerability from cvelistv5 – Published: 2024-04-17 10:27 – Updated: 2026-05-23 15:39
VLAI
Title
wifi: ath9k: delay all of ath9k_wmi_event_tasklet() until init is complete
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: delay all of ath9k_wmi_event_tasklet() until init is complete The ath9k_wmi_event_tasklet() used in ath9k_htc assumes that all the data structures have been fully initialised by the time it runs. However, because of the order in which things are initialised, this is not guaranteed to be the case, because the device is exposed to the USB subsystem before the ath9k driver initialisation is completed. We already committed a partial fix for this in commit: 8b3046abc99e ("ath9k_htc: fix NULL pointer dereference at ath9k_htc_tx_get_packet()") However, that commit only aborted the WMI_TXSTATUS_EVENTID command in the event tasklet, pairing it with an "initialisation complete" bit in the TX struct. It seems syzbot managed to trigger the race for one of the other commands as well, so let's just move the existing synchronisation bit to cover the whole tasklet (setting it at the end of ath9k_htc_probe_device() instead of inside ath9k_tx_init()).
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 78c8397132dd4735ac6a7b5a651302f0b9f264ad , < 1bc5461a21c56a36e2a7d81e152b90ce019a3905 (git)
Affected: 735aefae7b68025cd04c482a940c0f6fc6797a63 , < f8ff4b4df71e87f609be0cc37d92e918107f9b90 (git)
Affected: 8b3046abc99eefe11438090bcc4ec3a3994b55d0 , < 74d0639261dd795dce958d1b14815bdcbb48a715 (git)
Affected: 8b3046abc99eefe11438090bcc4ec3a3994b55d0 , < a015fbf698c8957aa5fbeefc5c59dd2cf3107298 (git)
Affected: 8b3046abc99eefe11438090bcc4ec3a3994b55d0 , < ac90e22e735bac44f74b5161fb096fbeb0ff8bc2 (git)
Affected: 8b3046abc99eefe11438090bcc4ec3a3994b55d0 , < 4afa0246656d5680c8a4c3fb37ba6570c4ab819b (git)
Affected: 8b3046abc99eefe11438090bcc4ec3a3994b55d0 , < 24355fcb0d4cbcb6ddda262596558e8cfba70f11 (git)
Affected: 7bbc1a50a7963f14048f0e54b0b73159f86d4ea3 (git)
Affected: 5.10.136 , < 5.10.214 (semver)
Affected: 5.15.17 , < 5.15.153 (semver)
Affected: 5.16.3 , < 5.17 (semver)
Create a notification for this product.
Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 5.10.214 , ≤ 5.10.* (semver)
Unaffected: 5.15.153 , ≤ 5.15.* (semver)
Unaffected: 6.1.83 , ≤ 6.1.* (semver)
Unaffected: 6.6.23 , ≤ 6.6.* (semver)
Unaffected: 6.7.11 , ≤ 6.7.* (semver)
Unaffected: 6.8.2 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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However, because of\\nthe order in which things are initialised, this is not guaranteed to be the\\ncase, because the device is exposed to the USB subsystem before the ath9k driver\\ninitialisation is completed.\\n\\nWe already committed a partial fix for this in commit:\\n8b3046abc99e (\\\"ath9k_htc: fix NULL pointer dereference at ath9k_htc_tx_get_packet()\\\")\\n\\nHowever, that commit only aborted the WMI_TXSTATUS_EVENTID command in the event\\ntasklet, pairing it with an \\\"initialisation complete\\\" bit in the TX struct. It\\nseems syzbot managed to trigger the race for one of the other commands as well,\\nso let\u0027s just move the existing synchronisation bit to cover the whole\\ntasklet (setting it at the end of ath9k_htc_probe_device() instead of inside\\nath9k_tx_init()).\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: ath9k: retrasa todo ath9k_wmi_event_tasklet() hasta que se complete el inicio. El ath9k_wmi_event_tasklet() usado en ath9k_htc supone que todas las estructuras de datos se han inicializado por completo en el momento de su ejecuci\u00f3n. Sin embargo, debido al orden en que se inicializan las cosas, no se garantiza que este sea el caso, porque el dispositivo queda expuesto al subsistema USB antes de que se complete la inicializaci\u00f3n del controlador ath9k. Ya cometimos una soluci\u00f3n parcial para esto en la confirmaci\u00f3n: 8b3046abc99e (\\\"ath9k_htc: corrige la desreferencia del puntero NULL en ath9k_htc_tx_get_packet()\\\") Sin embargo, esa confirmaci\u00f3n solo abort\u00f3 el comando WMI_TXSTATUS_EVENTID en el tasklet de eventos, emparej\u00e1ndolo con un bit de \\\"inicializaci\u00f3n completa\\\" en la estructura TX. Parece que syzbot tambi\u00e9n logr\u00f3 activar la carrera para uno de los otros comandos, as\u00ed que simplemente movamos el bit de sincronizaci\u00f3n existente para cubrir todo el tasklet (configur\u00e1ndolo al final de ath9k_htc_probe_device() en lugar de dentro de ath9k_tx_init()).\"}],\"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:N/I:N/A:H\",\"baseScore\":4.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-362\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10.136\",\"versionEndExcluding\":\"5.10.214\",\"matchCriteriaId\":\"59121F1D-CA08-4212-B214-47B41D7AB7A7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.15.17\",\"versionEndExcluding\":\"5.15.153\",\"matchCriteriaId\":\"E772F3D3-702E-4DA2-BB02-D6F27D3D52F8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16.3\",\"versionEndExcluding\":\"6.1.83\",\"matchCriteriaId\":\"EE68E09F-FB66-457D-BEB5-88B4A495EB30\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.23\",\"matchCriteriaId\":\"E00814DC-0BA7-431A-9926-80FEB4A96C68\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.7.11\",\"matchCriteriaId\":\"9B95D3A6-E162-47D5-ABFC-F3FA74FA7CFD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.8\",\"versionEndExcluding\":\"6.8.2\",\"matchCriteriaId\":\"543A75FF-25B8-4046-A514-1EA8EDD87AB1\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1bc5461a21c56a36e2a7d81e152b90ce019a3905\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/24355fcb0d4cbcb6ddda262596558e8cfba70f11\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4afa0246656d5680c8a4c3fb37ba6570c4ab819b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/74d0639261dd795dce958d1b14815bdcbb48a715\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a015fbf698c8957aa5fbeefc5c59dd2cf3107298\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ac90e22e735bac44f74b5161fb096fbeb0ff8bc2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f8ff4b4df71e87f609be0cc37d92e918107f9b90\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1bc5461a21c56a36e2a7d81e152b90ce019a3905\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/24355fcb0d4cbcb6ddda262596558e8cfba70f11\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4afa0246656d5680c8a4c3fb37ba6570c4ab819b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/74d0639261dd795dce958d1b14815bdcbb48a715\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a015fbf698c8957aa5fbeefc5c59dd2cf3107298\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ac90e22e735bac44f74b5161fb096fbeb0ff8bc2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f8ff4b4df71e87f609be0cc37d92e918107f9b90\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third 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{\"status\": \"affected\", \"version\": \"5.15.17\", \"lessThan\": \"5.15.153\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.16.3\", \"lessThan\": \"5.17\", \"versionType\": \"semver\"}], \"programFiles\": [\"drivers/net/wireless/ath/ath9k/htc.h\", \"drivers/net/wireless/ath/ath9k/htc_drv_init.c\", \"drivers/net/wireless/ath/ath9k/htc_drv_txrx.c\", \"drivers/net/wireless/ath/ath9k/wmi.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.17\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.17\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.214\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.153\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.83\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.23\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/wireless/ath/ath9k/htc.h\", \"drivers/net/wireless/ath/ath9k/htc_drv_init.c\", \"drivers/net/wireless/ath/ath9k/htc_drv_txrx.c\", \"drivers/net/wireless/ath/ath9k/wmi.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/1bc5461a21c56a36e2a7d81e152b90ce019a3905\"}, {\"url\": 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However, because of\\nthe order in which things are initialised, this is not guaranteed to be the\\ncase, because the device is exposed to the USB subsystem before the ath9k driver\\ninitialisation is completed.\\n\\nWe already committed a partial fix for this in commit:\\n8b3046abc99e (\\\"ath9k_htc: fix NULL pointer dereference at ath9k_htc_tx_get_packet()\\\")\\n\\nHowever, that commit only aborted the WMI_TXSTATUS_EVENTID command in the event\\ntasklet, pairing it with an \\\"initialisation complete\\\" bit in the TX struct. It\\nseems syzbot managed to trigger the race for one of the other commands as well,\\nso let\u0027s just move the existing synchronisation bit to cover the whole\\ntasklet (setting it at the end of ath9k_htc_probe_device() instead of inside\\nath9k_tx_init()).\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.214\", \"versionStartIncluding\": \"5.10.136\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.153\", \"versionStartIncluding\": \"5.15.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.83\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.23\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.11\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.2\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.16.3\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T15:39:47.828Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26897\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-23T15:39:47.828Z\", \"dateReserved\": \"2024-02-19T14:20:24.186Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-17T10:27:47.842Z\", \"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.