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media: zoran: Avoid freeing a registered video_device twice

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: media: zoran: Avoid freeing a registered video_device twice zoran_init_video_device() installs zoran_vdev_release() as the video_device release callback through zoran_template. After video_register_device() succeeds, video_unregister_device() drops the registered video_device reference and the V4L2 core eventually invokes that release callback, which kfree()s the video_device. zoran_exit_video_devices() called video_unregister_device() and then kfree(zr->video_dev), so device teardown could free the same video_device twice. Remove the direct kfree() and clear the cached pointer after unregistering. The pre-registration failure path keeps its manual free because the video_device was not registered there. This issue was found by a static analysis checker and confirmed by manual source review.

Announced Source revision 1
Original source ↗

CVE-2026-89870

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-2026-89870

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": "82e3a496eb56da0b9f29fdc5b63cedb3289e91de",
        "lessThan": "3ad6cf27505017a6794f5f96c31218c2291e951b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "82e3a496eb56da0b9f29fdc5b63cedb3289e91de",
        "lessThan": "c4acac8cdc005b2d14b6cef5e215d264212857f3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "82e3a496eb56da0b9f29fdc5b63cedb3289e91de",
        "lessThan": "4d99d8d0d895489064783601a516bd45812fa992",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "82e3a496eb56da0b9f29fdc5b63cedb3289e91de",
        "lessThan": "f1c4f3885df1f09bcab5296d86834d104f865e86",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "82e3a496eb56da0b9f29fdc5b63cedb3289e91de",
        "lessThan": "672dbccf4351370dad002d3c78dbb29ca1588f22",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "82e3a496eb56da0b9f29fdc5b63cedb3289e91de",
        "lessThan": "0735e0b5a96761a9ce277a238e834008ad92a0a5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bd01629315ffd5b63da91d0bd529a77d30e55028",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ff3357bffd9fb78f59762d8955afc7382a279079",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1ba65100a359fe28cfe37e09e10c99f247cbf1e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1e501ec38796f43e995731d1bcd4173cb1ccfce0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5.10.110",
        "lessThan": "5.11",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.15.33",
        "lessThan": "5.16",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.16.19",
        "lessThan": "5.17",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.17.2",
        "lessThan": "5.18",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "drivers/media/pci/zoran/zoran_card.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.18"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.18",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.51",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.5",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/media/pci/zoran/zoran_card.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-89870

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#36321 · Revision 1
Added to Heist Feed
Publisher date
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