Answer in brief
CVE-2025-38090 records a High severity (CVSS 7.8) vulnerability in drivers/rapidio/rio_cm.c: prevent possible heap overwrite. 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 7.8. 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 | >=b6e8d4aa1110306378af0f3472a6b85a1f039a16 <a8b5ea2e302aa5cd00fc7addd8df53c9bde7b5f6 || >=b6e8d4aa1110306378af0f3472a6b85a1f039a16 <c03ddc183249f03fc7e057e02cae6f89144d0123 || >=b6e8d4aa1110306378af0f3472a6b85a1f039a16 <58f664614f8c3d6142ab81ae551e466dc6e092e8 || >=b6e8d4aa1110306378af0f3472a6b85a1f039a16 <ecf5ee280b702270afb02f61b299d3dfe3ec7730 || >=b6e8d4aa1110306378af0f3472a6b85a1f039a16 <1921781ec4a8824bd0c520bf9363e28a880d14ec || >=b6e8d4aa1110306378af0f3472a6b85a1f039a16 <1cce6ac47f4a2ac1766b8a188dc8c8f6d8df2a53 || >=b6e8d4aa1110306378af0f3472a6b85a1f039a16 <6d5c6711a55c35ce09b90705546050408d9d4b61 || >=b6e8d4aa1110306378af0f3472a6b85a1f039a16 <50695153d7ddde3b1696dbf0085be0033bf3ddb3 | a8b5ea2e302aa5cd00fc7addd8df53c9bde7b5f6, c03ddc183249f03fc7e057e02cae6f89144d0123, 58f664614f8c3d6142ab81ae551e466dc6e092e8, ecf5ee280b702270afb02f61b299d3dfe3ec7730, 1921781ec4a8824bd0c520bf9363e28a880d14ec, 1cce6ac47f4a2ac1766b8a188dc8c8f6d8df2a53, 6d5c6711a55c35ce09b90705546050408d9d4b61, 50695153d7ddde3b1696dbf0085be0033bf3ddb3 |
| Linux/Linuxgeneric | 4.8 | Not reported |
Published upstream
Jun 30, 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 5, 2026
In the Linux kernel, the following vulnerability has been resolved: drivers/rapidio/rio_cm.c: prevent possible heap overwrite In riocm_cdev_ioctl(RIO_CM_CHAN_SEND) -> cm_chan_msg_send() -> riocm_ch_send() cm_chan_msg_send() checks that userspace didn't send too much data but riocm_ch_send() failed to check that userspace sent sufficient data. The result is that riocm_ch_send() can write to fields in the rio_ch_chan_hdr which were outside the bounds of the space which cm_chan_msg_send() allocated. Address this by teaching riocm_ch_send() to check that the entire rio_ch_chan_hdr was copied in from userspace.
Quoted source text, attributed separately from HOL analysis.