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CVE-2022-49312 (GCVE-0-2022-49312)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:10 – Updated: 2026-05-11 18:57
VLAI
Title
staging: rtl8712: fix a potential memory leak in r871xu_drv_init()
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix a potential memory leak in r871xu_drv_init() In r871xu_drv_init(), if r8712_init_drv_sw() fails, then the memory allocated by r8712_alloc_io_queue() in r8712_usb_dvobj_init() is not properly released as there is no action will be performed by r8712_usb_dvobj_deinit(). To properly release it, we should call r8712_free_io_queue() in r8712_usb_dvobj_deinit(). Besides, in r871xu_dev_remove(), r8712_usb_dvobj_deinit() will be called by r871x_dev_unload() under condition `padapter->bup` and r8712_free_io_queue() is called by r8712_free_drv_sw(). However, r8712_usb_dvobj_deinit() does not rely on `padapter->bup` and calling r8712_free_io_queue() in r8712_free_drv_sw() is negative for better understading the code. So I move r8712_usb_dvobj_deinit() into r871xu_dev_remove(), and remove r8712_free_io_queue() from r8712_free_drv_sw().
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:44 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 5a89a92efc342dd7c44b6056da87debc598f9c73 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 8eb42d6d10f8fe509117859defddf9e72b4fa4d0 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 205e039fead72e87ad2838f5e649a4c4834f648b (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < a2882b8baad068d21c99fb2ab5a85a2bdbd5b834 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 7288ff561de650d4139fab80e9cb0da9b5b32434 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.37
Unaffected: 0 , < 2.6.37 (semver)
Unaffected: 5.10.122 , ≤ 5.10.* (semver)
Unaffected: 5.15.47 , ≤ 5.15.* (semver)
Unaffected: 5.17.15 , ≤ 5.17.* (semver)
Unaffected: 5.18.4 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49312\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:01:07.997\",\"lastModified\":\"2026-06-17T05:17:40.907\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nstaging: rtl8712: fix a potential memory leak in r871xu_drv_init()\\n\\nIn r871xu_drv_init(), if r8712_init_drv_sw() fails, then the memory\\nallocated by r8712_alloc_io_queue() in r8712_usb_dvobj_init() is not\\nproperly released as there is no action will be performed by\\nr8712_usb_dvobj_deinit().\\nTo properly release it, we should call r8712_free_io_queue() in\\nr8712_usb_dvobj_deinit().\\n\\nBesides, in r871xu_dev_remove(), r8712_usb_dvobj_deinit() will be called\\nby r871x_dev_unload() under condition `padapter-\u003ebup` and\\nr8712_free_io_queue() is called by r8712_free_drv_sw().\\nHowever, r8712_usb_dvobj_deinit() does not rely on `padapter-\u003ebup` and\\ncalling r8712_free_io_queue() in r8712_free_drv_sw() is negative for\\nbetter understading the code.\\nSo I move r8712_usb_dvobj_deinit() into r871xu_dev_remove(), and remove\\nr8712_free_io_queue() from r8712_free_drv_sw().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: staging: rtl8712: corrige una posible p\u00e9rdida de memoria en r871xu_drv_init() En r871xu_drv_init(), si r8712_init_drv_sw() falla, entonces la memoria asignada por r8712_alloc_io_queue() en r8712_usb_dvobj_init() no se libera correctamente ya que r8712_usb_dvobj_deinit() no realizar\u00e1 ninguna acci\u00f3n. Para liberarla correctamente, debemos llamar a r8712_free_io_queue() en r8712_usb_dvobj_deinit(). Adem\u00e1s, en r871xu_dev_remove(), r8712_usb_dvobj_deinit() ser\u00e1 llamado por r871x_dev_unload() bajo la condici\u00f3n `padapter-\u0026gt;bup` y r8712_free_io_queue() ser\u00e1 llamado por r8712_free_drv_sw(). Sin embargo, r8712_usb_dvobj_deinit() no depende de `padapter-\u0026gt;bup` y llamar a r8712_free_io_queue() en r8712_free_drv_sw() es negativo para una mejor comprensi\u00f3n del c\u00f3digo. Entonces muevo r8712_usb_dvobj_deinit() a r871xu_dev_remove() y elimino r8712_free_io_queue() de 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    "redhat_vex": {
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      "title": "SUSE CVE CVE-2022-49312",
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    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49312\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:44:14.240096Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-401\", \"description\": \"CWE-401 Missing Release of Memory after Effective Lifetime\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T16:14:15.914Z\"}}], \"cna\": {\"title\": \"staging: rtl8712: fix a potential memory leak in r871xu_drv_init()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"5a89a92efc342dd7c44b6056da87debc598f9c73\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"8eb42d6d10f8fe509117859defddf9e72b4fa4d0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"205e039fead72e87ad2838f5e649a4c4834f648b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"a2882b8baad068d21c99fb2ab5a85a2bdbd5b834\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"7288ff561de650d4139fab80e9cb0da9b5b32434\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/staging/rtl8712/os_intfs.c\", \"drivers/staging/rtl8712/usb_intf.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.37\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.37\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.122\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.47\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.15\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.18.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/staging/rtl8712/os_intfs.c\", \"drivers/staging/rtl8712/usb_intf.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5a89a92efc342dd7c44b6056da87debc598f9c73\"}, {\"url\": \"https://git.kernel.org/stable/c/8eb42d6d10f8fe509117859defddf9e72b4fa4d0\"}, {\"url\": \"https://git.kernel.org/stable/c/205e039fead72e87ad2838f5e649a4c4834f648b\"}, {\"url\": \"https://git.kernel.org/stable/c/a2882b8baad068d21c99fb2ab5a85a2bdbd5b834\"}, {\"url\": \"https://git.kernel.org/stable/c/7288ff561de650d4139fab80e9cb0da9b5b32434\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nstaging: rtl8712: fix a potential memory leak in r871xu_drv_init()\\n\\nIn r871xu_drv_init(), if r8712_init_drv_sw() fails, then the memory\\nallocated by r8712_alloc_io_queue() in r8712_usb_dvobj_init() is not\\nproperly released as there is no action will be performed by\\nr8712_usb_dvobj_deinit().\\nTo properly release it, we should call r8712_free_io_queue() in\\nr8712_usb_dvobj_deinit().\\n\\nBesides, in r871xu_dev_remove(), r8712_usb_dvobj_deinit() will be called\\nby r871x_dev_unload() under condition `padapter-\u003ebup` and\\nr8712_free_io_queue() is called by r8712_free_drv_sw().\\nHowever, r8712_usb_dvobj_deinit() does not rely on `padapter-\u003ebup` and\\ncalling r8712_free_io_queue() in r8712_free_drv_sw() is negative for\\nbetter understading the code.\\nSo I move r8712_usb_dvobj_deinit() into r871xu_dev_remove(), and remove\\nr8712_free_io_queue() from r8712_free_drv_sw().\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.122\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.47\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.15\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18.4\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19\", \"versionStartIncluding\": \"2.6.37\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T18:57:15.332Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49312\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T18:57:15.332Z\", \"dateReserved\": \"2025-02-26T02:08:31.536Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T02:10:41.627Z\", \"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.