CVE-2026-93071 (GCVE-0-2026-93071)
Vulnerability from cvelistv5
Published
2026-09-17 16:10
Modified
2026-10-19 09:05
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: media: bcm2835-unicam: Fix asc leaked in error/remove path v4l2_async_nf_add_fwnode_remote() allocates the asc, which is freed when v4l2_async_nf_cleanup() is called. Call v4l2_async_nf_cleanup() properly in the driver paths. Discovered with kmemleak after rmmod: unreferenced object 0xffff000084526b80 (size 64): comm "modprobe", pid 185, jiffies 4295013512 hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 e8 0d ff bf 00 00 ff ff ................ 40 83 bc 84 00 00 ff ff 60 83 bc 84 00 00 ff ff @.......`....... backtrace (crc ac584083): [<00000000ffb081a7>] kmemleak_alloc+0x38/0x44 [<00000000d2fd9301>] __kmalloc+0x1b0/0x250 [<000000004dd5354d>] __v4l2_async_nf_add_fwnode+0x28/0x9c [<0000000067587657>] __v4l2_async_nf_add_fwnode_remote+0x3c/0x64
References
Impacted products
Vendor Product Version
Linux Linux Version: 392cd78d495f36c201eb5cc425b01017d493e094
Version: 392cd78d495f36c201eb5cc425b01017d493e094
Version: 392cd78d495f36c201eb5cc425b01017d493e094
Version: 392cd78d495f36c201eb5cc425b01017d493e094
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/broadcom/bcm2835-unicam.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5479372db364c80bb6bd59f640f5c31de3984bab",
              "status": "affected",
              "version": "392cd78d495f36c201eb5cc425b01017d493e094",
              "versionType": "git"
            },
            {
              "lessThan": "2c29cd408ef86e695acb2a5d4e00fa2f5695368d",
              "status": "affected",
              "version": "392cd78d495f36c201eb5cc425b01017d493e094",
              "versionType": "git"
            },
            {
              "lessThan": "de9be39cefda1ecd762e6a913665c01f7bb18100",
              "status": "affected",
              "version": "392cd78d495f36c201eb5cc425b01017d493e094",
              "versionType": "git"
            },
            {
              "lessThan": "253c9659e25131b0169f718e7d094ac1aa0d9279",
              "status": "affected",
              "version": "392cd78d495f36c201eb5cc425b01017d493e094",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/broadcom/bcm2835-unicam.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: bcm2835-unicam: Fix asc leaked in error/remove path\n\nv4l2_async_nf_add_fwnode_remote() allocates the asc, which is freed when\nv4l2_async_nf_cleanup() is called.\n\nCall v4l2_async_nf_cleanup() properly in the driver paths.\n\nDiscovered with kmemleak after rmmod:\n\nunreferenced object 0xffff000084526b80 (size 64):\n  comm \"modprobe\", pid 185, jiffies 4295013512\n  hex dump (first 32 bytes):\n    01 00 00 00 00 00 00 00 e8 0d ff bf 00 00 ff ff  ................\n    40 83 bc 84 00 00 ff ff 60 83 bc 84 00 00 ff ff  @.......`.......\n  backtrace (crc ac584083):\n    [\u003c00000000ffb081a7\u003e] kmemleak_alloc+0x38/0x44\n    [\u003c00000000d2fd9301\u003e] __kmalloc+0x1b0/0x250\n    [\u003c000000004dd5354d\u003e] __v4l2_async_nf_add_fwnode+0x28/0x9c\n    [\u003c0000000067587657\u003e] __v4l2_async_nf_add_fwnode_remote+0x3c/0x64"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:05:07.078Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5479372db364c80bb6bd59f640f5c31de3984bab"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c29cd408ef86e695acb2a5d4e00fa2f5695368d"
        },
        {
          "url": "https://git.kernel.org/stable/c/de9be39cefda1ecd762e6a913665c01f7bb18100"
        },
        {
          "url": "https://git.kernel.org/stable/c/253c9659e25131b0169f718e7d094ac1aa0d9279"
        }
      ],
      "title": "media: bcm2835-unicam: Fix asc leaked in error/remove path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93071",
    "datePublished": "2026-09-17T16:10:55.092Z",
    "dateReserved": "2026-09-17T15:57:05.661Z",
    "dateUpdated": "2026-10-19T09:05:07.078Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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