Answer in brief
CVE-2026-98323 records a Unknown severity vulnerability in RDMA/siw: Bound fragmented header copies by the remaining length. 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.
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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e3917c85f41ef1df64e27dc0e46ab0d803c5e73e <2c6fbcf4bfac0b2b186acc8d91154c0fa24468a7 || >=308cd50f174c95a507527037f4de1a0396aa4325 <af9f5b474a260ad23ffb9793d716a5e3bbce3b48 || >=754209850df8367c954ac1de7671c7430b1f342c <262dcd809723723ed8a4e05437ec7e9c21a8f17e || >=754209850df8367c954ac1de7671c7430b1f342c <eb4d7a946970469b3ab0c762432bf161d5b0836c || >=754209850df8367c954ac1de7671c7430b1f342c <8628f8ebf41669302513fb3f0bf0eba38b226742 || >=754209850df8367c954ac1de7671c7430b1f342c <b72dcfb9bf1f0f0147cda03dc59e4002a315067f || >=754209850df8367c954ac1de7671c7430b1f342c <e6bdfdf3bcb02d0d626a45e8c98b7e63d2fddf9d || >=754209850df8367c954ac1de7671c7430b1f342c <9ff797e516dbc1ecb73701ec4c24055712d44411 || e09caa38e10bcf027100cc22b0e3cc745a39ef0a || 0c14f795a9eab9344230f9933798b8ee496f497d || 7fada7c6962219b6fc4ff4e62e46a936af110dd9 || >=5.10.150 <5.10.271 || >=5.15.75 <5.15.222 || >=5.4.220 <5.5 || >=5.19.17 <5.20 || >=6.0.3 <6.1 | 2c6fbcf4bfac0b2b186acc8d91154c0fa24468a7, af9f5b474a260ad23ffb9793d716a5e3bbce3b48, 262dcd809723723ed8a4e05437ec7e9c21a8f17e, eb4d7a946970469b3ab0c762432bf161d5b0836c, 8628f8ebf41669302513fb3f0bf0eba38b226742, b72dcfb9bf1f0f0147cda03dc59e4002a315067f, e6bdfdf3bcb02d0d626a45e8c98b7e63d2fddf9d, 9ff797e516dbc1ecb73701ec4c24055712d44411, 5.10.271, 5.15.222, 5.5, 5.20, 6.1 |
| Linux/Linuxgeneric | 6.1 | Not reported |
Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 6, 2026
In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Bound fragmented header copies by the remaining length siw_get_hdr() can receive an extended DDP/RDMAP header across more than one TCP callback. The first callback may receive most of the header, while the next one still limits the copy to hdrlen - MIN_DDP_HDR instead of the number of missing bytes. This makes the destination move past the end of the header and overwrite the receive state, including fpdu_part_rcvd. A later callback can then use a negative fpdu_part_rcvd value as a copy offset, which creates an OOB write. Use the number of header bytes already received when calculating the next copy length.
Quoted source text, attributed separately from HOL analysis.