Vulnerability-Lookup

GHSA-GMR7-W89V-RR2Q

Vulnerability from github – Published: 2026-02-14 18:30 – Updated: 2026-02-16 09:30

Details

In the Linux kernel, the following vulnerability has been resolved:

ALSA: usb-audio: Prevent excessive number of frames

In this case, the user constructed the parameters with maxpacksize 40 for rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer size for each data URB is maxpacksize * packets, which in this example is 40 * 6 = 240; When the user performs a write operation to send audio data into the ALSA PCM playback stream, the calculated number of frames is packsize[0] * packets = 264, which exceeds the allocated URB buffer size, triggering the out-of-bounds (OOB) issue reported by syzbot [1].

Added a check for the number of single data URB frames when calculating the number of frames to prevent [1].

[1] BUG: KASAN: slab-out-of-bounds in copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487 Write of size 264 at addr ffff88804337e800 by task syz.0.17/5506 Call Trace: copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487 prepare_playback_urb+0x953/0x13d0 sound/usb/pcm.c:1611 prepare_outbound_urb+0x377/0xc50 sound/usb/endpoint.c:333

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23208"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-14T17:15:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Prevent excessive number of frames\n\nIn this case, the user constructed the parameters with maxpacksize 40\nfor rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer\nsize for each data URB is maxpacksize * packets, which in this example\nis 40 * 6 = 240; When the user performs a write operation to send audio\ndata into the ALSA PCM playback stream, the calculated number of frames\nis packsize[0] * packets = 264, which exceeds the allocated URB buffer\nsize, triggering the out-of-bounds (OOB) issue reported by syzbot [1].\n\nAdded a check for the number of single data URB frames when calculating\nthe number of frames to prevent [1].\n\n[1]\nBUG: KASAN: slab-out-of-bounds in copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\nWrite of size 264 at addr ffff88804337e800 by task syz.0.17/5506\nCall Trace:\n copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\n prepare_playback_urb+0x953/0x13d0 sound/usb/pcm.c:1611\n prepare_outbound_urb+0x377/0xc50 sound/usb/endpoint.c:333",
  "id": "GHSA-gmr7-w89v-rr2q",
  "modified": "2026-02-16T09:30:30Z",
  "published": "2026-02-14T18:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23208"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/282aba56713bbc58155716b55ca7222b2d9cf3c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/480a1490c595a242f27493a4544b3efb21b29f6a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/62932d9ed639a9fa71b4ac1a56766a4b43abb7e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab0b5e92fc36ee82c1bd01fe896d0f775ed5de41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c4dc012b027c9eb101583011089dea14d744e314"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d67dde02049e632ba58d3c44a164a74b6a737154"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0ed5a36fb3ab9e7b9ee45cd17f09f6d5f594360"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef5749ef8b307bf8717945701b1b79d036af0a15"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-23208 (GCVE-0-2026-23208)

Vulnerability from cvelistv5 – Published: 2026-02-14 16:27 – Updated: 2026-02-16 08:58

Title

ALSA: usb-audio: Prevent excessive number of frames

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Prevent excessive number of frames In this case, the user constructed the parameters with maxpacksize 40 for rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer size for each data URB is maxpacksize * packets, which in this example is 40 * 6 = 240; When the user performs a write operation to send audio data into the ALSA PCM playback stream, the calculated number of frames is packsize[0] * packets = 264, which exceeds the allocated URB buffer size, triggering the out-of-bounds (OOB) issue reported by syzbot [1]. Added a check for the number of single data URB frames when calculating the number of frames to prevent [1]. [1] BUG: KASAN: slab-out-of-bounds in copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487 Write of size 264 at addr ffff88804337e800 by task syz.0.17/5506 Call Trace: copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487 prepare_playback_urb+0x953/0x13d0 sound/usb/pcm.c:1611 prepare_outbound_urb+0x377/0xc50 sound/usb/endpoint.c:333

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/480a1490c595a242f…
	https://git.kernel.org/stable/c/ab0b5e92fc36ee82c…
	https://git.kernel.org/stable/c/282aba56713bbc581…
	https://git.kernel.org/stable/c/c4dc012b027c9eb10…
	https://git.kernel.org/stable/c/e0ed5a36fb3ab9e7b…
	https://git.kernel.org/stable/c/d67dde02049e632ba…
	https://git.kernel.org/stable/c/62932d9ed639a9fa7…
	https://git.kernel.org/stable/c/ef5749ef8b307bf87…

Impacted products

Vendor

Product

Version

Linux

Affected: 02c56650f3c118d3752122996d96173d26bb13aa , < 480a1490c595a242f27493a4544b3efb21b29f6a (git)
Affected: 5ef30e443e6d3654cccecec99cf481a69a0a6d3b , < ab0b5e92fc36ee82c1bd01fe896d0f775ed5de41 (git)
Affected: 99703c921864a318e3e8aae74fde071b1ff35bea , < 282aba56713bbc58155716b55ca7222b2d9cf3c8 (git)
Affected: 2d50acd7dbd0682a56968ad9551341d7fc5b6eaf , < c4dc012b027c9eb101583011089dea14d744e314 (git)
Affected: aba41867dd66939d336fdf604e4d73b805d8039f , < e0ed5a36fb3ab9e7b9ee45cd17f09f6d5f594360 (git)
Affected: d288dc74f8cf95cb7ae0aaf245b7128627a49bf3 , < d67dde02049e632ba58d3c44a164a74b6a737154 (git)
Affected: f0bd62b64016508938df9babe47f65c2c727d25c , < 62932d9ed639a9fa71b4ac1a56766a4b43abb7e4 (git)
Affected: f0bd62b64016508938df9babe47f65c2c727d25c , < ef5749ef8b307bf8717945701b1b79d036af0a15 (git)

Linux

Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 4.4.230 , ≤ 4.4.* (semver)
Unaffected: 4.9.230 , ≤ 4.9.* (semver)
Unaffected: 4.14.188 , ≤ 4.14.* (semver)
Unaffected: 4.19.132 , ≤ 4.19.* (semver)
Unaffected: 5.4.51 , ≤ 5.4.* (semver)
Unaffected: 5.7.8 , ≤ 5.7.* (semver)
Unaffected: 6.18.10 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/pcm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "versionType": "git"
            },
            {
              "lessThan": "c4dc012b027c9eb101583011089dea14d744e314",
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              "versionType": "git"
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            {
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            },
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.8"
            },
            {
              "lessThan": "5.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.4.*",
              "status": "unaffected",
              "version": "4.4.230",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.230",
              "versionType": "semver"
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              "status": "unaffected",
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              "versionType": "semver"
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              "versionType": "semver"
            },
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              "status": "unaffected",
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              "versionType": "semver"
            },
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              "lessThanOrEqual": "5.7.*",
              "status": "unaffected",
              "version": "5.7.8",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
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            {
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "4.4.229",
                  "vulnerable": true
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                {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Prevent excessive number of frames\n\nIn this case, the user constructed the parameters with maxpacksize 40\nfor rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer\nsize for each data URB is maxpacksize * packets, which in this example\nis 40 * 6 = 240; When the user performs a write operation to send audio\ndata into the ALSA PCM playback stream, the calculated number of frames\nis packsize[0] * packets = 264, which exceeds the allocated URB buffer\nsize, triggering the out-of-bounds (OOB) issue reported by syzbot [1].\n\nAdded a check for the number of single data URB frames when calculating\nthe number of frames to prevent [1].\n\n[1]\nBUG: KASAN: slab-out-of-bounds in copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\nWrite of size 264 at addr ffff88804337e800 by task syz.0.17/5506\nCall Trace:\n copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\n prepare_playback_urb+0x953/0x13d0 sound/usb/pcm.c:1611\n prepare_outbound_urb+0x377/0xc50 sound/usb/endpoint.c:333"
        }
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      "providerMetadata": {
        "dateUpdated": "2026-02-16T08:58:58.667Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/c4dc012b027c9eb101583011089dea14d744e314"
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          "url": "https://git.kernel.org/stable/c/62932d9ed639a9fa71b4ac1a56766a4b43abb7e4"
        },
        {
          "url": "https://git.kernel.org/stable/c/ef5749ef8b307bf8717945701b1b79d036af0a15"
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      "title": "ALSA: usb-audio: Prevent excessive number of frames",
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    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23208",
    "datePublished": "2026-02-14T16:27:30.441Z",
    "dateReserved": "2026-01-13T15:37:45.986Z",
    "dateUpdated": "2026-02-16T08:58:58.667Z",
    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-GMR7-W89V-RR2Q

CVE-2026-23208 (GCVE-0-2026-23208)

Tags

Sightings

Nomenclature