Answer in brief
CVE-2023-54076 records a Critical severity (CVSS 9.8) vulnerability in smb: client: fix missed ses refcounting. 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.
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.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=8e3554150d6c80a84b3cb046615d1a0e943811dc <eb382196e6f6e05cfafdab797840e5a96c6e7bf0 || >=8e3554150d6c80a84b3cb046615d1a0e943811dc <bf99f6be2d20146942bce6f9e90a0ceef12cbc1e || f30d226bcc9f0e2d97b4a6e94c43a28148fbeab6 || c082c3be0f96e759ff2e361d929832fda0b93851 || >=6.2.15 <6.3 || >=6.3.2 <6.4 | eb382196e6f6e05cfafdab797840e5a96c6e7bf0, bf99f6be2d20146942bce6f9e90a0ceef12cbc1e, 6.3, 6.4 |
| Linux/Linuxgeneric | 6.4 | Not reported |
Published upstream
Dec 24, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix missed ses refcounting Use new cifs_smb_ses_inc_refcount() helper to get an active reference of @ses and @ses->dfs_root_ses (if set). This will prevent @ses->dfs_root_ses of being put in the next call to cifs_put_smb_ses() and thus potentially causing an use-after-free bug.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2023-54076 records a Critical severity (CVSS 9.8) vulnerability in smb: client: fix missed ses refcounting. 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.
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.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=8e3554150d6c80a84b3cb046615d1a0e943811dc <eb382196e6f6e05cfafdab797840e5a96c6e7bf0 || >=8e3554150d6c80a84b3cb046615d1a0e943811dc <bf99f6be2d20146942bce6f9e90a0ceef12cbc1e || f30d226bcc9f0e2d97b4a6e94c43a28148fbeab6 || c082c3be0f96e759ff2e361d929832fda0b93851 || >=6.2.15 <6.3 || >=6.3.2 <6.4 | eb382196e6f6e05cfafdab797840e5a96c6e7bf0, bf99f6be2d20146942bce6f9e90a0ceef12cbc1e, 6.3, 6.4 |
| Linux/Linuxgeneric | 6.4 | Not reported |
Published upstream
Dec 24, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix missed ses refcounting Use new cifs_smb_ses_inc_refcount() helper to get an active reference of @ses and @ses->dfs_root_ses (if set). This will prevent @ses->dfs_root_ses of being put in the next call to cifs_put_smb_ses() and thus potentially causing an use-after-free bug.
Quoted source text, attributed separately from HOL analysis.