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can: usb_8dev: usb_8dev_read_bulk_callback(): fix URB memory leak

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: can: usb_8dev: usb_8dev_read_bulk_callback(): fix URB memory leak Fix similar memory leak as in commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"). In usb_8dev_open() -> usb_8dev_start(), the URBs for USB-in transfers are allocated, added to the priv->rx_submitted anchor and submitted. In the complete callback usb_8dev_read_bulk_callback(), the URBs are processed and resubmitted. In usb_8dev_close() -> unlink_all_urbs() the URBs are freed by calling usb_kill_anchored_urbs(&priv->rx_submitted). However, this does not take into account that the USB framework unanchors the URB before the complete function is called. This means that once an in-URB has been completed, it is no longer anchored and is ultimately not released in usb_kill_anchored_urbs(). Fix the memory leak by anchoring the URB in the usb_8dev_read_bulk_callback() to the priv->rx_submitted anchor.

Announced Source revision 1
Original source ↗

CVE-2026-23108

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-23108

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "0024d8ad1639e32d717445c69ca813fd19c2a91c",
        "lessThan": "feb8243eaea7efd5279b19667d7189fd8654c87a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0024d8ad1639e32d717445c69ca813fd19c2a91c",
        "lessThan": "ef6e608e5ee71eca0cd3475c737e684cef24f240",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0024d8ad1639e32d717445c69ca813fd19c2a91c",
        "lessThan": "60719661b4cbd7ffbed1a0e0fa3bbc82d8bd2be9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0024d8ad1639e32d717445c69ca813fd19c2a91c",
        "lessThan": "59ff56992bba28051ad67cd8cc7b0edfe7280796",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0024d8ad1639e32d717445c69ca813fd19c2a91c",
        "lessThan": "ea4a98e924164586066b39f29bfcc7cc9da108cd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0024d8ad1639e32d717445c69ca813fd19c2a91c",
        "lessThan": "07e9373739c6388af9d99797cdb2e79dbbcbe92b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0024d8ad1639e32d717445c69ca813fd19c2a91c",
        "lessThan": "f7a980b3b8f80fe367f679da376cf76e800f9480",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/can/usb/usb_8dev.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.9"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.9",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.249",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.199",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.162",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.122",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.68",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.8",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "6.19",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/can/usb/usb_8dev.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-23108

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#39755 · Revision 1
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Publisher date
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