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CVE-2026-80805 (GCVE-0-2026-80805)

Vulnerability from cvelistv5 – Published: 2026-09-04 15:13 – Updated: 2026-09-04 15:13
VLAI
Title
xfs: validate attr entry pointer before field access
Summary
In the Linux kernel, the following vulnerability has been resolved: xfs: validate attr entry pointer before field access xfs_attr3_leaf_verify_entry() accesses lentry/rentry fields (namelen, valuelen) before checking if the entry pointer itself is within bounds. If nameidx is crafted to point near the end of the buffer, these field accesses can read out-of-bounds before the bounds check at name_end > buf_end is performed. Add explicit bounds checks for entry pointers before accessing their fields. Use offsetof() to check that the start of the flexible array member (nameval/name) is within bounds, which ensures all preceding fields are safe to access.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c84760659dcf237902d4cc997cd5f55cb3b2807f , < 0f82586741e39926542f621bafa424e237a04fa4 (git)
Affected: c84760659dcf237902d4cc997cd5f55cb3b2807f , < 134d82a2b5e3eba3ebf58753a1387b22f26ca1de (git)
Affected: c84760659dcf237902d4cc997cd5f55cb3b2807f , < 03a12253dd2a036545bdb0110a4e0b8dc70f8e7c (git)
Affected: c84760659dcf237902d4cc997cd5f55cb3b2807f , < e99120b5944a16d0bc27e52b33de78bcdaaabf5c (git)
Affected: c84760659dcf237902d4cc997cd5f55cb3b2807f , < 98a42bb9d60d42898c3494de351a1bf508348cde (git)
Affected: c84760659dcf237902d4cc997cd5f55cb3b2807f , < 184c1a80421a5b5ddcd262e47980ce2e67fee211 (git)
Affected: c84760659dcf237902d4cc997cd5f55cb3b2807f , < 9f92e749fc08b7ff3d9da190c4d1b2273745b282 (git)
Affected: c84760659dcf237902d4cc997cd5f55cb3b2807f , < c35da2bac6f7cb9a9be73f188b4fcc324615c327 (git)
Affected: c84760659dcf237902d4cc997cd5f55cb3b2807f , < b7eea80be25f3334f131d52982b3131aba77b97d (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.5
Unaffected: 0 , < 5.5 (semver)
Unaffected: 5.10.267 , ≤ 5.10.* (semver)
Unaffected: 5.15.218 , ≤ 5.15.* (semver)
Unaffected: 6.1.185 , ≤ 6.1.* (semver)
Unaffected: 6.6.154 , ≤ 6.6.* (semver)
Unaffected: 6.12.106 , ≤ 6.12.* (semver)
Unaffected: 6.18.47 , ≤ 6.18.* (semver)
Unaffected: 7.1.11 , ≤ 7.1.* (semver)
Unaffected: 7.2.1 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "dateReserved": "2026-08-26T14:34:25.794Z",
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    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-10T01:51:19Z",
      "cve": "CVE-2026-80805",
      "id": "CVE-2026-80805",
      "initial_release_date": "2026-09-05T00:27:02Z",
      "product_status:known_affected": "248",
      "product_status:known_not_affected": "93",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-80805",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80805.json",
      "version": "4"
    }
  }
}



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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

Author Source Type Date Other

Nomenclature

  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.