smb: client: fix potential UAF in is_valid_oplock_break() (CVE-2024-35863) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2024-35863

smb: client: fix potential UAF in is_valid_oplock_break()

Answer in brief

CVE-2024-35863 records a Unknown severity vulnerability in smb: client: fix potential UAF in is_valid_oplock_break(). 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 May 19, 2024Updated Aug 5, 2026Source checked Aug 7, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=7f48558e6489d032b1584b0cc9ac4bb11072c034 <494c91e1e9413b407d12166a61b84200d4d54fac \|\| >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <0a15ba88a32fa7a516aff7ffd27befed5334dff2 \|\| >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <16d58c6a7db5050b9638669084b63fc05f951825 \|\| >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <69ccf040acddf33a3a85ec0f6b45ef84b0f7ec29 \|\| a67172a013953664b1dad03c648200c70b90506c \|\| >=3.12.48 <3.13	494c91e1e9413b407d12166a61b84200d4d54fac, 0a15ba88a32fa7a516aff7ffd27befed5334dff2, 16d58c6a7db5050b9638669084b63fc05f951825, 69ccf040acddf33a3a85ec0f6b45ef84b0f7ec29, 3.13
Linux/Linuxgeneric	3.13	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 494c91e1e9413b407d12166a61b84200d4d54fac if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
May 19, 2024
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 5, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in is_valid_oplock_break() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.

Quoted source text, attributed separately from HOL analysis.

Back to active CVEs

Unknown severity · Source severity not reportedCVE-2024-35863

smb: client: fix potential UAF in is_valid_oplock_break()

Answer in brief

Analysis pending evidence review

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

Published May 19, 2024Updated Aug 5, 2026Source checked Aug 7, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=7f48558e6489d032b1584b0cc9ac4bb11072c034 <494c91e1e9413b407d12166a61b84200d4d54fac \|\| >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <0a15ba88a32fa7a516aff7ffd27befed5334dff2 \|\| >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <16d58c6a7db5050b9638669084b63fc05f951825 \|\| >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <69ccf040acddf33a3a85ec0f6b45ef84b0f7ec29 \|\| a67172a013953664b1dad03c648200c70b90506c \|\| >=3.12.48 <3.13	494c91e1e9413b407d12166a61b84200d4d54fac, 0a15ba88a32fa7a516aff7ffd27befed5334dff2, 16d58c6a7db5050b9638669084b63fc05f951825, 69ccf040acddf33a3a85ec0f6b45ef84b0f7ec29, 3.13
Linux/Linuxgeneric	3.13	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 494c91e1e9413b407d12166a61b84200d4d54fac if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
May 19, 2024
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 5, 2026

Sources and claim methodology

Upstream source description

Quoted source text, attributed separately from HOL analysis.

smb: client: fix potential UAF in is_valid_oplock_break()

Key facts

Why this deserves its current priority

Affected scope and exposure questions

Recommended response

Evidence timeline and material changes

Sources and claim methodology

Related CVEs

smb: client: fix potential UAF in is_valid_oplock_break()

Key facts

Why this deserves its current priority

Affected scope and exposure questions

Recommended response

Evidence timeline and material changes

Sources and claim methodology

Related CVEs