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xfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair

Type: advisorySource: OSV1 source record

In the Linux kernel, the following vulnerability has been resolved: xfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair LOLLM noticed a longstanding bug where xrep_iunlink_walk_ondisk_bucket tries to walk ragi->sc->sa.agi_bp to rebuild the unlinked inode lists. Unfortunately, it's possible for agi_bp to be null if the buffer verifier fails, so we have to use ragi->agi_bp (which skips verifier checks) instead.

Announced Source revision 1
Original source ↗

CVE-2026-80533

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-2026-80533

Kernel

Source reference: /affected/1/package/name

Affected versions
Not stated in this record
Fixed versions
6.12.105

Source reference: /affected/1/ranges

6.18.46

Source reference: /affected/1/ranges

7.1.10

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": "ab97f4b1c030750f2475bf4da8a9554d02206640"
          },
          {
            "fixed": "43b4ecbc948a2e441804c9d7b772deb6b2e44e3d"
          },
          {
            "fixed": "c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03"
          },
          {
            "fixed": "a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081"
          },
          {
            "fixed": "1e96a00e0d3a00be6e4f368b2f18e2d345f813ce"
          }
        ]
      }
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80533.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "6.10.0"
          },
          {
            "fixed": "6.12.105"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "6.13.0"
          },
          {
            "fixed": "6.18.46"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "6.19.0"
          },
          {
            "fixed": "7.1.10"
          }
        ]
      }
    ],
    "package": {
      "name": "Kernel",
      "ecosystem": "Linux"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80533.json"
    }
  }
]
Related CVEs
CVE-2026-80533

Source reference: /id

Publisher severity

No explicit severity was provided.

Event
#50811 · Revision 1
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Publisher date
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