Answer in brief
CVE-2023-53794 records a Critical severity (CVSS 9.8) vulnerability in cifs: fix session state check in reconnect to avoid use-after-free issue. 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 | >=4fcd1813e6404dd4420c7d12fb483f9320f0bf93 <7e4f5c3f01fb0e51ca438e43262d858daf9a0a76 || >=4fcd1813e6404dd4420c7d12fb483f9320f0bf93 <759ffc164d95a32c09528766d74d9b4fb054e8f4 || >=4fcd1813e6404dd4420c7d12fb483f9320f0bf93 <99f280700b4cc02d5f141b8d15f8e9fad0418f65 || 655e0c067f0e02ece03fd0591dabe3db2ae27552 || 875cc09c0767a4ac06b57af383709657f98b3ea1 || 599fe1409085059ba12a2c3897c853be9fa9e7cf || 2e4378ee60049b752c9dce16f62ce6fbd11b379a || 59b520454b323ec43b2ae757217332cea33091e0 || e20c888e2b3576e5f498c167729d274ef60b86f8 || 4ce7aa4e44d88ce64ea8ae2337b8910f3670b0ba || 419fad68e4c4135ff9859e9214dd6cf954413ca1 || >=3.10.103 <3.11 || >=3.12.63 <3.13 || >=3.14.74 <3.15 || >=3.16.37 <3.17 || >=3.18.37 <3.19 || >=4.1.28 <4.2 || >=4.4.16 <4.5 || >=4.6.5 <4.7 | 7e4f5c3f01fb0e51ca438e43262d858daf9a0a76, 759ffc164d95a32c09528766d74d9b4fb054e8f4, 99f280700b4cc02d5f141b8d15f8e9fad0418f65, 3.11, 3.13, 3.15, 3.17, 3.19, 4.2, 4.5, 4.7 |
| Linux/Linuxgeneric | 4.7 | Not reported |
Published upstream
Dec 9, 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: cifs: fix session state check in reconnect to avoid use-after-free issue Don't collect exiting session in smb2_reconnect_server(), because it will be released soon. Note that the exiting session will stay in server->smb_ses_list until it complete the cifs_free_ipc() and logoff() and then delete itself from the list.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2023-53794 records a Critical severity (CVSS 9.8) vulnerability in cifs: fix session state check in reconnect to avoid use-after-free issue. 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 | >=4fcd1813e6404dd4420c7d12fb483f9320f0bf93 <7e4f5c3f01fb0e51ca438e43262d858daf9a0a76 || >=4fcd1813e6404dd4420c7d12fb483f9320f0bf93 <759ffc164d95a32c09528766d74d9b4fb054e8f4 || >=4fcd1813e6404dd4420c7d12fb483f9320f0bf93 <99f280700b4cc02d5f141b8d15f8e9fad0418f65 || 655e0c067f0e02ece03fd0591dabe3db2ae27552 || 875cc09c0767a4ac06b57af383709657f98b3ea1 || 599fe1409085059ba12a2c3897c853be9fa9e7cf || 2e4378ee60049b752c9dce16f62ce6fbd11b379a || 59b520454b323ec43b2ae757217332cea33091e0 || e20c888e2b3576e5f498c167729d274ef60b86f8 || 4ce7aa4e44d88ce64ea8ae2337b8910f3670b0ba || 419fad68e4c4135ff9859e9214dd6cf954413ca1 || >=3.10.103 <3.11 || >=3.12.63 <3.13 || >=3.14.74 <3.15 || >=3.16.37 <3.17 || >=3.18.37 <3.19 || >=4.1.28 <4.2 || >=4.4.16 <4.5 || >=4.6.5 <4.7 | 7e4f5c3f01fb0e51ca438e43262d858daf9a0a76, 759ffc164d95a32c09528766d74d9b4fb054e8f4, 99f280700b4cc02d5f141b8d15f8e9fad0418f65, 3.11, 3.13, 3.15, 3.17, 3.19, 4.2, 4.5, 4.7 |
| Linux/Linuxgeneric | 4.7 | Not reported |
Published upstream
Dec 9, 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: cifs: fix session state check in reconnect to avoid use-after-free issue Don't collect exiting session in smb2_reconnect_server(), because it will be released soon. Note that the exiting session will stay in server->smb_ses_list until it complete the cifs_free_ipc() and logoff() and then delete itself from the list.
Quoted source text, attributed separately from HOL analysis.