CVE-2026-80805: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-80805DEBIAN-CVE-2026-80805
Published 04-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-80805 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.7% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.19%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 10
MGASA-2026-0506OPENSUSE-SU-2026:11773-1OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23881-1SUSE-SU-2026:23887-1SUSE-SU-2026:23897-1

Timeline

  1. 04-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

0.00 pp

From 0.19% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.19%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu157 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.187-1 | < 6.12.107-1 | < 7.1.12-1
  • linux-6.12< 6.12.107-1~deb12u1
Linux1 product
  • linux≥ c84760659dcf237902d4cc997cd5f55cb3b2807f, < 0f82586741e39926542f621bafa424e237a04fa4 | ≥ c84760659dcf237902d4cc997cd5f55cb3b2807f, < 134d82a2b5e3eba3ebf58753a1387b22f26ca1de | ≥ c84760659dcf237902d4cc997cd5f55cb3b2807f, < 03a12253dd2a036545bdb0110a4e0b8dc70f8e7c | ≥ c84760659dcf237902d4cc997cd5f55cb3b2807f, < e99120b5944a16d0bc27e52b33de78bcdaaabf5c | ≥ c84760659dcf237902d4cc997cd5f55cb3b2807f, < 98a42bb9d60d42898c3494de351a1bf508348cde | ≥ c84760659dcf237902d4cc997cd5f55cb3b2807f, < 184c1a80421a5b5ddcd262e47980ce2e67fee211 | ≥ c84760659dcf237902d4cc997cd5f55cb3b2807f, < 9f92e749fc08b7ff3d9da190c4d1b2273745b282 | ≥ c84760659dcf237902d4cc997cd5f55cb3b2807f, < c35da2bac6f7cb9a9be73f188b4fcc324615c327 | ≥ c84760659dcf237902d4cc997cd5f55cb3b2807f, < b7eea80be25f3334f131d52982b3131aba77b97d | 5.5

3 vendors · 160 products

References

14 links
Show all 14 references