CVE-2026-68223 (GCVE-0-2026-68223)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:00 – Updated: 2026-08-19 16:31
VLAI
Title
media: meson: vdec: Fix memory leak in error path of vdec_open
Summary
In the Linux kernel, the following vulnerability has been resolved: media: meson: vdec: Fix memory leak in error path of vdec_open The vdec_open() function previously jumped directly to err_m2m_release when vdec_init_ctrls() failed, skipping release of the m2m context. This caused a resource leak. Fix it by introducing a proper err_m2m_ctx_release label that calls v4l2_m2m_ctx_release(sess->m2m_ctx) before releasing the m2m device. This was identified via kmemleak: unreferenced object 0xffff0000205d6878 (size 8): comm "v4l_id", pid 5289, jiffies 4294938580 hex dump (first 8 bytes): 40 d2 49 18 00 00 ff ff @.I..... backtrace (crc d3204599): kmemleak_alloc+0xc8/0xf0 __kvmalloc_node_noprof+0x60c/0x850 v4l2_ctrl_handler_init_class+0x1b4/0x2e8 [videodev] vdec_open+0x1f4/0x788 [meson_vdec] v4l2_open+0x144/0x460 [videodev] chrdev_open+0x1ac/0x500 do_dentry_open+0x3f0/0xfe8 vfs_open+0x68/0x320 do_open+0x2d8/0x9a8 path_openat+0x1d0/0x4f0 do_filp_open+0x190/0x380 do_sys_openat2+0xf8/0x1b0 __arm64_sys_openat+0x13c/0x1e8 invoke_syscall+0xdc/0x268 el0_svc_common.constprop.0+0x178/0x258 do_el0_svc+0x4c/0x70
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3e7f51bd96077acad6acd7b45668f65b44233c4e , < 5f97120d1a50c9efffe54425fac42bb7ef13ac86 (git)
Affected: 3e7f51bd96077acad6acd7b45668f65b44233c4e , < fb77d6f4580f316c9148b942af0028ee489d121e (git)
Affected: 3e7f51bd96077acad6acd7b45668f65b44233c4e , < d9058a19731036c03a779bfe8c3ca0d9aa198599 (git)
Affected: 3e7f51bd96077acad6acd7b45668f65b44233c4e , < c6cd08a71a630f19b10c318e76e3c56e1dd10e00 (git)
Affected: 3e7f51bd96077acad6acd7b45668f65b44233c4e , < 2cf0171ad594860e31723c671e37824ce12c01ea (git)
Affected: 3e7f51bd96077acad6acd7b45668f65b44233c4e , < 1391b75bf0119b5d37f1c1c3078d452a01967f9b (git)
Affected: 3e7f51bd96077acad6acd7b45668f65b44233c4e , < 99f3527bd1a27ff798d59177ed045b0dd87deaef (git)
Affected: 3e7f51bd96077acad6acd7b45668f65b44233c4e , < 940f161f734b25f175a95d2684c2021f6323693a (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.3
Unaffected: 0 , < 5.3 (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)
guessed Create a notification for this product.
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: meson: vdec: Fix memory leak in error path of vdec_open\n\nThe vdec_open() function previously jumped directly to\nerr_m2m_release when vdec_init_ctrls() failed, skipping\nrelease of the m2m context. This caused a resource leak.\n\nFix it by introducing a proper err_m2m_ctx_release label\nthat calls v4l2_m2m_ctx_release(sess-\u003em2m_ctx) before\nreleasing the m2m device.\n\nThis was identified via kmemleak:\nunreferenced object 0xffff0000205d6878 (size 8):\n  comm \"v4l_id\", pid 5289, jiffies 4294938580\n  hex dump (first 8 bytes):\n    40 d2 49 18 00 00 ff ff                          @.I.....\n  backtrace (crc d3204599):\n    kmemleak_alloc+0xc8/0xf0\n    __kvmalloc_node_noprof+0x60c/0x850\n    v4l2_ctrl_handler_init_class+0x1b4/0x2e8 [videodev]\n    vdec_open+0x1f4/0x788 [meson_vdec]\n    v4l2_open+0x144/0x460 [videodev]\n    chrdev_open+0x1ac/0x500\n    do_dentry_open+0x3f0/0xfe8\n    vfs_open+0x68/0x320\n    do_open+0x2d8/0x9a8\n    path_openat+0x1d0/0x4f0\n    do_filp_open+0x190/0x380\n    do_sys_openat2+0xf8/0x1b0\n    __arm64_sys_openat+0x13c/0x1e8\n    invoke_syscall+0xdc/0x268\n    el0_svc_common.constprop.0+0x178/0x258\n    do_el0_svc+0x4c/0x70"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T16:31:54.081Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/5f97120d1a50c9efffe54425fac42bb7ef13ac86"
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          "url": "https://git.kernel.org/stable/c/d9058a19731036c03a779bfe8c3ca0d9aa198599"
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        },
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          "url": "https://git.kernel.org/stable/c/99f3527bd1a27ff798d59177ed045b0dd87deaef"
        },
        {
          "url": "https://git.kernel.org/stable/c/940f161f734b25f175a95d2684c2021f6323693a"
        }
      ],
      "title": "media: meson: vdec: Fix memory leak in error path of vdec_open",
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    "datePublished": "2026-08-10T12:00:44.123Z",
    "dateReserved": "2026-07-30T09:28:09.375Z",
    "dateUpdated": "2026-08-19T16:31:54.081Z",
    "state": "PUBLISHED"
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This caused a resource leak.\\n\\nFix it by introducing a proper err_m2m_ctx_release label\\nthat calls v4l2_m2m_ctx_release(sess-\u003em2m_ctx) before\\nreleasing the m2m device.\\n\\nThis was identified via kmemleak:\\nunreferenced object 0xffff0000205d6878 (size 8):\\n  comm \\\"v4l_id\\\", pid 5289, jiffies 4294938580\\n  hex dump (first 8 bytes):\\n    40 d2 49 18 00 00 ff ff                          @.I.....\\n  backtrace (crc d3204599):\\n    kmemleak_alloc+0xc8/0xf0\\n    __kvmalloc_node_noprof+0x60c/0x850\\n    v4l2_ctrl_handler_init_class+0x1b4/0x2e8 [videodev]\\n    vdec_open+0x1f4/0x788 [meson_vdec]\\n    v4l2_open+0x144/0x460 [videodev]\\n    chrdev_open+0x1ac/0x500\\n    do_dentry_open+0x3f0/0xfe8\\n    vfs_open+0x68/0x320\\n    do_open+0x2d8/0x9a8\\n    path_openat+0x1d0/0x4f0\\n    do_filp_open+0x190/0x380\\n    do_sys_openat2+0xf8/0x1b0\\n    __arm64_sys_openat+0x13c/0x1e8\\n    invoke_syscall+0xdc/0x268\\n    el0_svc_common.constprop.0+0x178/0x258\\n    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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-08-11T11:52:21+00:00",
      "cve": "CVE-2026-68223",
      "id": "CVE-2026-68223",
      "initial_release_date": "2026-08-10T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: media: meson: vdec: Fix memory leak in error path of vdec_open",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68223.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-08-18T16:55:53Z",
      "cve": "CVE-2026-68223",
      "id": "CVE-2026-68223",
      "initial_release_date": "2026-08-18T16:55:53Z",
      "product_status:known_affected": "144",
      "product_status:known_not_affected": "152",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-68223",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-68223.json",
      "version": "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

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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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