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Back to active CVEs
High · CVSS 7.5CVE-2024-50285

ksmbd: check outstanding simultaneous SMB operationsCVE-2024-50285

Answer in brief

CVE-2024-50285 records a High severity (CVSS 7.5) vulnerability in ksmbd: check outstanding simultaneous SMB operations. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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 Oct 30, 2026Source checked Nov 4, 2026First seen by HOL Aug 5, 2026Material review Oct 30, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
10 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.5. 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=0626e6641f6b467447c81dd7678a69c66f7746cf <1f993777275cbd8f74765c4f9d9285cb907c9be5 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <e257ac6fe138623cf59fca8898abdf659dbc8356 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <0a77d947f599b1f39065015bec99390d0c0022ee1f993777275cbd8f74765c4f9d9285cb907c9be5, e257ac6fe138623cf59fca8898abdf659dbc8356, 0a77d947f599b1f39065015bec99390d0c0022ee
Linux/Linuxgeneric5.15Not reported
Linux/Linuxgeneric>=0626e6641f6b467447c81dd7678a69c66f7746cf <d2e2830c19824c221b6f5e17bf272438cc0e601c || >=0626e6641f6b467447c81dd7678a69c66f7746cf <1f993777275cbd8f74765c4f9d9285cb907c9be5 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <e257ac6fe138623cf59fca8898abdf659dbc8356 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <0a77d947f599b1f39065015bec99390d0c0022eed2e2830c19824c221b6f5e17bf272438cc0e601c, 1f993777275cbd8f74765c4f9d9285cb907c9be5, e257ac6fe138623cf59fca8898abdf659dbc8356, 0a77d947f599b1f39065015bec99390d0c0022ee

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 1f993777275cbd8f74765c4f9d9285cb907c9be5; Linux/Linux to d2e2830c19824c221b6f5e17bf272438cc0e601c 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

    Oct 30, 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
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: check outstanding simultaneous SMB operations If Client send simultaneous SMB operations to ksmbd, It exhausts too much memory through the "ksmbd_work_cache”. It will cause OOM issue. ksmbd has a credit mechanism but it can't handle this problem. This patch add the check if it exceeds max credits to prevent this problem by assuming that one smb request consumes at least one credit.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache ZooKeeper: Denial of service through unbounded memory allocation in multiRead request handlingAlso CWE-770
  • Apache ZooKeeper: Unbounded recursion in snapshot serialization allows a client to render the server unrecoverableAlso CWE-770

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-770
Source
CVE List V5
Source checked
Nov 4, 2026
References
4 linked sources
Open source record