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  4. CVE 2024 44985 ipv6 prevent possible uaf in ip6xmit
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Back to active CVEs
Critical · CVSS 9.8CVE-2024-44985

ipv6: prevent possible UAF in ip6_xmit()CVE-2024-44985

Answer in brief

CVE-2024-44985 records a Critical severity (CVSS 9.8) vulnerability in ipv6: prevent possible UAF in ip6_xmit(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 4, 2024Updated Aug 5, 2026Source checked Nov 4, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 4, 2026
References
8 linked sources
Open source record

Key facts

Risk
Critical · CVSS 9.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=81d626b00bdba16504eeae9cc891b18e83a9471a <b3a3d5333c13a1be57499581eab4a8fc94d57f36 || >=ee6b1db17f8287b615448488fc37f42bcfe9ece6 <c47e022011719fc5727bca661d662303180535ba || >=0c9f227bee11910a49e1d159abe102d06e3745d5 <975f764e96f71616b530e300c1bb2ac0ce0c2596 || >=0c9f227bee11910a49e1d159abe102d06e3745d5 <38a21c026ed2cc7232414cb166efc1923f34af17 || >=0c9f227bee11910a49e1d159abe102d06e3745d5 <124b428fe28064c809e4237b0b38e97200a8a4a8 || >=0c9f227bee11910a49e1d159abe102d06e3745d5 <fc88d6c1f2895a5775795d82ec581afdff7661d1 || >=0c9f227bee11910a49e1d159abe102d06e3745d5 <2d5ff7e339d04622d8282661df36151906d0e1c7b3a3d5333c13a1be57499581eab4a8fc94d57f36, c47e022011719fc5727bca661d662303180535ba, 975f764e96f71616b530e300c1bb2ac0ce0c2596, 38a21c026ed2cc7232414cb166efc1923f34af17, 124b428fe28064c809e4237b0b38e97200a8a4a8, fc88d6c1f2895a5775795d82ec581afdff7661d1, 2d5ff7e339d04622d8282661df36151906d0e1c7
Linux/Linuxgeneric5.15Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to b3a3d5333c13a1be57499581eab4a8fc94d57f36 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 4, 2024

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 5, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencelists.debian.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible UAF in ip6_xmit() If skb_expand_head() returns NULL, skb has been freed and the associated dst/idev could also have been freed. We must use rcu_read_lock() to prevent a possible UAF.

Quoted source text, attributed separately from HOL analysis.