Vulnerability details
CVE-2023-54076
Linux Linux
smb: client: fix missed ses refcounting
CVSS 3.1
9.8Critical
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.4 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | c082c3be0f96e759ff2e361d929832fda0b93851 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f30d226bcc9f0e2d97b4a6e94c43a28148fbeab6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 6.2.15 ≤ v < 6.3 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 6.3.2 ≤ v < 6.4 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 8e3554150d6c80a84b3cb046615d1a0e943811dc ≤ v < eb382196e6f6e05cfafdab797840e5a96c6e7bf0 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 8e3554150d6c80a84b3cb046615d1a0e943811dc ≤ v < bf99f6be2d20146942bce6f9e90a0ceef12cbc1e | CVEProject cvelistV5 (CNA) |
References and advisories
2
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2025-12-24
- Last updated
- 2026-08-05
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.45%
Probability of exploitation in 30 days
39.6%
Percentile (among all CVEs)
Weaknesses (CWE)
- —