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In the Linux kernel, the following vulnerability has been resolved: xfs: validate attr entry pointer before field access… (CVE-2026-80805)

0
Unknown
Published: 09/04/2026 (09/04/2026, 18:31:26 UTC)
Source: GCVE Database

Description

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.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-m3h7-xg69-2hcv
Osv Schema Version
1.4.0
Aliases
["CVE-2026-80805"]
Ecosystems
[]
Database Specific Severity
null
Cvss Version
null

Threat ID: 6a9c2656acd9273b49fca402

Added to database: 09/05/2026, 14:25:26 UTC

Last updated: 09/05/2026, 14:25:26 UTC

Views: 1

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