Answer in brief
CVE-2026-72243 records a Unknown severity vulnerability in selinux: check connect-related permissions on TCP Fast Open. The current sources do not mark it as known exploited. The current feed maps 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.
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.
The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <11406d0d7e11b4e525bb2ace2c70107031d058da || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e507633bf76bccf1a6af27771fb0d6e2862b7eac || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fc633a598206d4f23af782db7c0b5f3a82751d2c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <646ebbc5f2ff9147d084e1213143f091026a611c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <44c74d27d1b9aaa99fa8a83640c1223575262b80 || >=0 <6.1.178 || >=0 <6.6.145 || >=0 <6.12.97 || >=0 <6.18.40 || >=0 <7.1.5 | 11406d0d7e11b4e525bb2ace2c70107031d058da, e507633bf76bccf1a6af27771fb0d6e2862b7eac, d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3, fc633a598206d4f23af782db7c0b5f3a82751d2c, 646ebbc5f2ff9147d084e1213143f091026a611c, 44c74d27d1b9aaa99fa8a83640c1223575262b80, 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5 |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update its socket_sendmsg() hook to call selinux_socket_connect() when MSG_FASTOPEN is passed.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-72243 records a Unknown severity vulnerability in selinux: check connect-related permissions on TCP Fast Open. The current sources do not mark it as known exploited. The current feed maps 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.
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.
The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <11406d0d7e11b4e525bb2ace2c70107031d058da || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e507633bf76bccf1a6af27771fb0d6e2862b7eac || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fc633a598206d4f23af782db7c0b5f3a82751d2c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <646ebbc5f2ff9147d084e1213143f091026a611c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <44c74d27d1b9aaa99fa8a83640c1223575262b80 || >=0 <6.1.178 || >=0 <6.6.145 || >=0 <6.12.97 || >=0 <6.18.40 || >=0 <7.1.5 | 11406d0d7e11b4e525bb2ace2c70107031d058da, e507633bf76bccf1a6af27771fb0d6e2862b7eac, d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3, fc633a598206d4f23af782db7c0b5f3a82751d2c, 646ebbc5f2ff9147d084e1213143f091026a611c, 44c74d27d1b9aaa99fa8a83640c1223575262b80, 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5 |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update its socket_sendmsg() hook to call selinux_socket_connect() when MSG_FASTOPEN is passed.
Quoted source text, attributed separately from HOL analysis.