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btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()

Type: advisorySource: OSV1 source record

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots() If we have an unexpected reloc_root for our root, we jump to the out label but never drop the reference we obtained for root, resulting in a leak. Add a missing btrfs_put_root() call.

Announced Source revision 1
Original source ↗

CVE-2026-68422

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: osv:CVE-2026-68422

Kernel

Source reference: /affected/1/package/name

Affected versions
Not stated in this record
Fixed versions
5.15.216

Source reference: /affected/1/ranges

6.1.183

Source reference: /affected/1/ranges

6.6.148

Source reference: /affected/1/ranges

6.12.101

Source reference: /affected/1/ranges

6.18.42

Source reference: /affected/1/ranges

7.1.6

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
        "type": "GIT",
        "events": [
          {
            "introduced": "24213fa46c7080c31d79aa2e3e2f0d9480cab700"
          },
          {
            "fixed": "f89df93e8aefa4c1c813f835559f2ac727f79766"
          },
          {
            "fixed": "3f586b4c92e4272fcd01bf0db0590b63acf3e85b"
          },
          {
            "fixed": "b3d39b03799600c76c33486e2d29b73a771023db"
          },
          {
            "fixed": "72f673d1c1deb819554d3e7e154f6d84301eb735"
          },
          {
            "fixed": "60a23d4ea169e27403f3bb023bb98036797c0206"
          },
          {
            "fixed": "7591d1727067d6063247901ad25c4bdc4e5695c4"
          },
          {
            "fixed": "ce6050bafb4e33377dc17fcc357736bfc351180c"
          }
        ]
      }
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68422.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "5.13.0"
          },
          {
            "fixed": "5.15.216"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "5.16.0"
          },
          {
            "fixed": "6.1.183"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "6.2.0"
          },
          {
            "fixed": "6.6.148"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "6.7.0"
          },
          {
            "fixed": "6.12.101"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "6.13.0"
          },
          {
            "fixed": "6.18.42"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "6.19.0"
          },
          {
            "fixed": "7.1.6"
          }
        ]
      }
    ],
    "package": {
      "name": "Kernel",
      "ecosystem": "Linux"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68422.json"
    }
  }
]
Related CVEs
CVE-2026-68422

Source reference: /id

Publisher severity

No explicit severity was provided.

Event
#50692 · Revision 1
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Publisher date
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