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Back to active CVEs
Critical · CVSS 9.8CVE-2024-50283

ksmbd: fix slab-use-after-free in smb3_preauth_hash_rspCVE-2024-50283

Answer in brief

CVE-2024-50283 records a Critical severity (CVSS 9.8) vulnerability in ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp. 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 Nov 19, 2024Updated Aug 5, 2026Source checked Nov 4, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026
Upstream Advisory

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>=0626e6641f6b467447c81dd7678a69c66f7746cf <cb645064e0811053c94e86677f2e58ed29359d62 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <f7557bbca40d4ca8bb1c6c940ac6c95078bd0827 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <c6cdc08c25a868a08068dfc319fa9fce982b8e7f || >=0626e6641f6b467447c81dd7678a69c66f7746cf <1b6ad475d4ed577d34e0157eb507be00c588bf5c || >=0626e6641f6b467447c81dd7678a69c66f7746cf <b8fc56fbca7482c1e5c0e3351c6ae78982e25adacb645064e0811053c94e86677f2e58ed29359d62, f7557bbca40d4ca8bb1c6c940ac6c95078bd0827, c6cdc08c25a868a08068dfc319fa9fce982b8e7f, 1b6ad475d4ed577d34e0157eb507be00c588bf5c, b8fc56fbca7482c1e5c0e3351c6ae78982e25ada
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 cb645064e0811053c94e86677f2e58ed29359d62 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 19, 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 referencelists.debian.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp ksmbd_user_session_put should be called under smb3_preauth_hash_rsp(). It will avoid freeing session before calling smb3_preauth_hash_rsp().

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Memory Corruption
EPSS
Not reported
CWE IDs
CWE-416
Source
CVE List V5
Source checked
Nov 4, 2026
References
6 linked sources
Open source record