CVE-2022-50179 (GCVE-0-2022-50179)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:03 – Updated: 2026-05-11 19:14
VLAI?
Title
ath9k: fix use-after-free in ath9k_hif_usb_rx_cb
Summary
In the Linux kernel, the following vulnerability has been resolved: ath9k: fix use-after-free in ath9k_hif_usb_rx_cb Syzbot reported use-after-free Read in ath9k_hif_usb_rx_cb() [0]. The problem was in incorrect htc_handle->drv_priv initialization. Probable call trace which can trigger use-after-free: ath9k_htc_probe_device() /* htc_handle->drv_priv = priv; */ ath9k_htc_wait_for_target() <--- Failed ieee80211_free_hw() <--- priv pointer is freed <IRQ> ... ath9k_hif_usb_rx_cb() ath9k_hif_usb_rx_stream() RX_STAT_INC() <--- htc_handle->drv_priv access In order to not add fancy protection for drv_priv we can move htc_handle->drv_priv initialization at the end of the ath9k_htc_probe_device() and add helper macro to make all *_STAT_* macros NULL safe, since syzbot has reported related NULL deref in that macros [1]
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 62bc1ea5c7401d77eaf73d0c6a15f3d2e742856e (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < ab7a0ddf5f1cdec63cb21840369873806fc36d80 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < e9e21206b8ea62220b486310c61277e7ebfe7cec (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < eccd7c3e2596b574241a7670b5b53f5322f470e5 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 03ca957c5f7b55660957eda20b5db4110319ac7a (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 6b14ab47937ba441e75e8dbb9fbfc9c55efa41c6 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < b66ebac40f64336ae2d053883bee85261060bd27 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 0ac4827f78c7ffe8eef074bc010e7e34bc22f533 (git)
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Linux Linux Affected: 2.6.35
Unaffected: 0 , < 2.6.35 (semver)
Unaffected: 4.14.291 , ≤ 4.14.* (semver)
Unaffected: 4.19.256 , ≤ 4.19.* (semver)
Unaffected: 5.4.211 , ≤ 5.4.* (semver)
Unaffected: 5.10.137 , ≤ 5.10.* (semver)
Unaffected: 5.15.61 , ≤ 5.15.* (semver)
Unaffected: 5.18.18 , ≤ 5.18.* (semver)
Unaffected: 5.19.2 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nath9k: fix use-after-free in ath9k_hif_usb_rx_cb\n\nSyzbot reported use-after-free Read in ath9k_hif_usb_rx_cb() [0]. The\nproblem was in incorrect htc_handle-\u003edrv_priv initialization.\n\nProbable call trace which can trigger use-after-free:\n\nath9k_htc_probe_device()\n  /* htc_handle-\u003edrv_priv = priv; */\n  ath9k_htc_wait_for_target()      \u003c--- Failed\n  ieee80211_free_hw()\t\t   \u003c--- priv pointer is freed\n\n\u003cIRQ\u003e\n...\nath9k_hif_usb_rx_cb()\n  ath9k_hif_usb_rx_stream()\n   RX_STAT_INC()\t\t\u003c--- htc_handle-\u003edrv_priv access\n\nIn order to not add fancy protection for drv_priv we can move\nhtc_handle-\u003edrv_priv initialization at the end of the\nath9k_htc_probe_device() and add helper macro to make\nall *_STAT_* macros NULL safe, since syzbot has reported related NULL\nderef in that macros [1]"
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      "title": "ath9k: fix use-after-free in ath9k_hif_usb_rx_cb",
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    "dateUpdated": "2026-05-11T19:14:20.518Z",
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The\\nproblem was in incorrect htc_handle-\u003edrv_priv initialization.\\n\\nProbable call trace which can trigger use-after-free:\\n\\nath9k_htc_probe_device()\\n  /* htc_handle-\u003edrv_priv = priv; */\\n  ath9k_htc_wait_for_target()      \u003c--- Failed\\n  ieee80211_free_hw()\\t\\t   \u003c--- priv pointer is freed\\n\\n\u003cIRQ\u003e\\n...\\nath9k_hif_usb_rx_cb()\\n  ath9k_hif_usb_rx_stream()\\n   RX_STAT_INC()\\t\\t\u003c--- htc_handle-\u003edrv_priv access\\n\\nIn order to not add fancy protection for drv_priv we can move\\nhtc_handle-\u003edrv_priv initialization at the end of the\\nath9k_htc_probe_device() and add helper macro to make\\nall *_STAT_* macros NULL safe, since syzbot has reported related NULL\\nderef in that macros [1]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ath9k: correcci\u00f3n del Use-After-Free en ath9k_hif_usb_rx_cb. Syzbot report\u00f3 una lectura de Use-After-Free en ath9k_hif_usb_rx_cb() [0]. El problema resid\u00eda en una inicializaci\u00f3n incorrecta de htc_handle-\u0026gt;drv_priv. Posible rastreo de llamadas que puede activar el Use-After-Free: ath9k_htc_probe_device() /* htc_handle-\u0026gt;drv_priv = priv; */ ath9k_htc_wait_for_target() \u0026lt;--- Error en ieee80211_free_hw() \u0026lt;--- el puntero privado se liber\u00f3  ... ath9k_hif_usb_rx_cb() ath9k_hif_usb_rx_stream() RX_STAT_INC() \u0026lt;--- acceso a htc_handle-\u0026gt;drv_priv Para no agregar protecci\u00f3n sofisticada para drv_priv, podemos mover la inicializaci\u00f3n de htc_handle-\u0026gt;drv_priv al final de ath9k_htc_probe_device() y agregar una macro auxiliar para hacer que todas las macros *_STAT_* sean seguras para NULL, ya que syzbot inform\u00f3 una desreferencia NULL relacionada en esas macros [1]\"}],\"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:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"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\":\"2.6.35\",\"versionEndExcluding\":\"4.14.291\",\"matchCriteriaId\":\"8232B530-0C81-478C-AAE9-219DDA579A48\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.256\",\"matchCriteriaId\":\"6C47CDE3-B039-4AE5-B8E4-1DC820E473FF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.211\",\"matchCriteriaId\":\"B1C63D19-C08C-4308-A848-B2523C9275BD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.137\",\"matchCriteriaId\":\"C2BF720F-C5EE-4DE2-9BDF-CE4CFBC767F4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.61\",\"matchCriteriaId\":\"51861563-7F40-460F-82CD-2D3FBDAD6618\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.18.18\",\"matchCriteriaId\":\"5B42E453-8837-49D0-A5EF-03F818A6DC11\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.19\",\"versionEndExcluding\":\"5.19.2\",\"matchCriteriaId\":\"A1A2A5A5-4598-4D7E-BA07-4660398D6C8F\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/03ca957c5f7b55660957eda20b5db4110319ac7a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0ac4827f78c7ffe8eef074bc010e7e34bc22f533\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/62bc1ea5c7401d77eaf73d0c6a15f3d2e742856e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6b14ab47937ba441e75e8dbb9fbfc9c55efa41c6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ab7a0ddf5f1cdec63cb21840369873806fc36d80\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b66ebac40f64336ae2d053883bee85261060bd27\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e9e21206b8ea62220b486310c61277e7ebfe7cec\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/eccd7c3e2596b574241a7670b5b53f5322f470e5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
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}


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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

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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.