CVE-2026-68231 (GCVE-0-2026-68231)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:00 – Updated: 2026-08-19 16:32
VLAI
Title
media: airspy: Return queued buffers on start_streaming() failure
Summary
In the Linux kernel, the following vulnerability has been resolved: media: airspy: Return queued buffers on start_streaming() failure The vb2 framework hands buffers to the driver via buf_queue() before calling start_streaming(). If start_streaming() returns an error without first returning those buffers via vb2_buffer_done(), vb2_start_streaming() fires WARN_ON(owned_by_drv_count) and the queued buffers leak. airspy_start_streaming() returned -ENODEV early when the USB device had been disconnected (s->udev == NULL) without returning any buffers that buf_queue() had already accepted. Take v4l2_lock first and jump to the existing err_clear_bit label, which already drains s->queued_bufs via vb2_buffer_done(..., VB2_BUF_STATE_QUEUED) before unlocking. This mirrors the uvcvideo fix in commit 4cf3b6fd54eb ("media: uvcvideo: Return queued buffers on start_streaming() failure").
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 634fe5033951b80ef4b98d8f047cb1083d29170d , < badceeb82a9d8d8e98d07859f3c89130ae1998b9 (git)
Affected: 634fe5033951b80ef4b98d8f047cb1083d29170d , < 122ce0c0af629a8765ddf1adf6fb85c6db3d47cb (git)
Affected: 634fe5033951b80ef4b98d8f047cb1083d29170d , < bcdf261c4c29077fc3da6449f7eda77357046205 (git)
Affected: 634fe5033951b80ef4b98d8f047cb1083d29170d , < 877686a74ecdc93dcaee09dbac566e819059c9e7 (git)
Affected: 634fe5033951b80ef4b98d8f047cb1083d29170d , < cd42623d698b59f1fe5768f78a4101c28d5feb2e (git)
Affected: 634fe5033951b80ef4b98d8f047cb1083d29170d , < 73bd2779865372b1017d4f555b45270aa2d0d710 (git)
Affected: 634fe5033951b80ef4b98d8f047cb1083d29170d , < 170fcc945bc094b1c956bf555c070692826a3eff (git)
Affected: 634fe5033951b80ef4b98d8f047cb1083d29170d , < 04344d0b4929caa94c0df72f767752aa0935ef5d (git)
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Linux Linux Affected: 3.17
Unaffected: 0 , < 3.17 (semver)
Unaffected: 5.10.265 , ≤ 5.10.* (semver)
Unaffected: 5.15.216 , ≤ 5.15.* (semver)
Unaffected: 6.1.183 , ≤ 6.1.* (semver)
Unaffected: 6.6.148 , ≤ 6.6.* (semver)
Unaffected: 6.12.101 , ≤ 6.12.* (semver)
Unaffected: 6.18.42 , ≤ 6.18.* (semver)
Unaffected: 7.1.6 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: airspy: Return queued buffers on start_streaming() failure\n\nThe vb2 framework hands buffers to the driver via buf_queue() before\ncalling start_streaming().  If start_streaming() returns an error\nwithout first returning those buffers via vb2_buffer_done(),\nvb2_start_streaming() fires WARN_ON(owned_by_drv_count) and the queued\nbuffers leak.\n\nairspy_start_streaming() returned -ENODEV early when the USB device had\nbeen disconnected (s-\u003eudev == NULL) without returning any buffers that\nbuf_queue() had already accepted.  Take v4l2_lock first and jump to the\nexisting err_clear_bit label, which already drains s-\u003equeued_bufs via\nvb2_buffer_done(..., VB2_BUF_STATE_QUEUED) before unlocking.\n\nThis mirrors the uvcvideo fix in commit 4cf3b6fd54eb (\"media: uvcvideo:\nReturn queued buffers on start_streaming() failure\")."
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    "datePublished": "2026-08-10T12:00:54.801Z",
    "dateReserved": "2026-07-30T09:28:09.376Z",
    "dateUpdated": "2026-08-19T16:32:04.017Z",
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    "redhat_vex": {
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      "current_release_date": "2026-08-31T11:19:22+00:00",
      "cve": "CVE-2026-68231",
      "id": "CVE-2026-68231",
      "initial_release_date": "2026-08-10T00:00:00+00:00",
      "product_status:known_affected": "1",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: media: airspy: Return queued buffers on start_streaming() failure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68231.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-18T00:33:45Z",
      "cve": "CVE-2026-68231",
      "id": "CVE-2026-68231",
      "initial_release_date": "2026-08-21T00:44:43Z",
      "product_status:known_affected": "671",
      "product_status:known_not_affected": "72",
      "product_status:recommended": "107",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-68231",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-68231.json",
      "version": "9"
    }
  }
}



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