Answer in brief
CVE-2026-23302 records a Unknown severity vulnerability in net: annotate data-races around sk->sk_{data_ready,write_space}. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (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), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=604326b41a6fb9b4a78b6179335decee0365cd8c <279f2b67d1c44ee139bd3fdb221850daa9358449 || >=604326b41a6fb9b4a78b6179335decee0365cd8c <7ad01905831c815520f1b0486336a03bb7420465 || >=604326b41a6fb9b4a78b6179335decee0365cd8c <c494448bb522bbbb63096540eb2319101a0480ab || >=604326b41a6fb9b4a78b6179335decee0365cd8c <f17c1c4acbe2bd702abce73a847a04a196fab2c5 || >=604326b41a6fb9b4a78b6179335decee0365cd8c <27fccdbcbbfc4651b6f66756e6fa3f52e051ec23 || >=604326b41a6fb9b4a78b6179335decee0365cd8c <2ef2b20cf4e04ac8a6ba68493f8780776ff84300 | 279f2b67d1c44ee139bd3fdb221850daa9358449, 7ad01905831c815520f1b0486336a03bb7420465, c494448bb522bbbb63096540eb2319101a0480ab, f17c1c4acbe2bd702abce73a847a04a196fab2c5, 27fccdbcbbfc4651b6f66756e6fa3f52e051ec23, 2ef2b20cf4e04ac8a6ba68493f8780776ff84300 |
| Linux/Linuxgeneric | 4.20 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
Mar 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
In the Linux kernel, the following vulnerability has been resolved: net: annotate data-races around sk->sk_{data_ready,write_space} skmsg (and probably other layers) are changing these pointers while other cpus might read them concurrently. Add corresponding READ_ONCE()/WRITE_ONCE() annotations for UDP, TCP and AF_UNIX.
Quoted source text, attributed separately from HOL analysis.