CVE-2026-46046 (GCVE-0-2026-46046)
Vulnerability from cvelistv5
Published
2026-05-27 12:57
Modified
2026-06-14 17:50
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() The commit c8e008b60492 ("ext4: ignore xattrs past end") introduced a refcount leak in when block_csum is false. ext4_xattr_inode_dec_ref_all() calls ext4_get_inode_loc() to get iloc.bh, but never releases it with brelse().
Impacted products
Vendor Product Version
Linux Linux Version: 76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3
Version: f737418b6de31c962c7192777ee4018906975383
Version: cf9291a3449b04688b81e32621e88de8f4314b54
Version: 362a90cecd36e8a5c415966d0b75b04a0270e4dd
Version: eb59cc31b6ea076021d14b04e7faab1636b87d0e
Version: c8e008b60492cf6fd31ef127aea6d02fd3d314cd
Version: c8e008b60492cf6fd31ef127aea6d02fd3d314cd
Version: c8e008b60492cf6fd31ef127aea6d02fd3d314cd
Version: 6aff941cb0f7d0c897c3698ad2e30672709135e3
Version: 3bc6317033f365ce578eb6039445fb66162722fd
Version: 836e625b03a666cf93ff5be328c8cb30336db872
Version: 5.10.237   
Version: 5.15.181   
Version: 6.1.135   
Version: 6.6.88   
Version: 6.12.24   
Version: 5.4.293   
Version: 6.13.12   
Version: 6.14.3   
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{
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              "versionType": "original_commit_for_fix"
            }
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      ],
      "cpeApplicability": [
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              "negate": false,
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()\n\nThe commit c8e008b60492 (\"ext4: ignore xattrs past end\")\nintroduced a refcount leak in when block_csum is false.\n\next4_xattr_inode_dec_ref_all() calls ext4_get_inode_loc() to\nget iloc.bh, but never releases it with brelse()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:50:25.177Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/dd98a5603a212ea9c96c6982ccdbcc748fdb9a56"
        },
        {
          "url": "https://git.kernel.org/stable/c/153ab2c52355fbebcae622db8e7b506492c73a29"
        },
        {
          "url": "https://git.kernel.org/stable/c/b706d00206a9e82362a9633efbd8b5775650169b"
        },
        {
          "url": "https://git.kernel.org/stable/c/1bc1107a3a403a6d440673ed6666f7b07ef868a8"
        },
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          "url": "https://git.kernel.org/stable/c/097227f1ffe1a85bc3c359f81c71e3d40e06e920"
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          "url": "https://git.kernel.org/stable/c/1e6b0a69bf2c9c819255c7566e4355536d81d9cf"
        },
        {
          "url": "https://git.kernel.org/stable/c/f072906688933bf47fabbaf63560be03357c8298"
        },
        {
          "url": "https://git.kernel.org/stable/c/77d059519382bd66283e6a4e83ee186e87e7708f"
        }
      ],
      "title": "ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46046",
    "datePublished": "2026-05-27T12:57:02.610Z",
    "dateReserved": "2026-05-13T15:03:33.094Z",
    "dateUpdated": "2026-06-14T17:50:25.177Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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