drivers/rapidio/rio_cm.c: prevent possible heap overwrite
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.239, 5.15.186, 5.4.295, 6.1.142, 6.12.35, 6.15.4, 6.6.95
- CVEs
- CVE-2025-38090
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 14:49 UTC · Revision 1
Source evidence
drivers/rapidio/rio_cm.c: prevent possible heap overwrite
core-osv · Original sourcePublished 30 Jun 2025, 07:29 UTC
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.
osv:CVE-2025-38090
Kernel
Fixed versions: 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4
Complete source record
{
"id": "6589ab860f4a71fd89b94a9308e87ec1fe1547c7880133c0c0e0063d65a45e72",
"url": "https://osv.dev/vulnerability/CVE-2025-38090",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "drivers/rapidio/rio_cm.c: prevent possible heap overwrite",
"summary": "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.",
"evidence": "osv:CVE-2025-38090",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.4.295",
"evidence": "/affected/1/ranges"
},
{
"value": "5.10.239",
"evidence": "/affected/1/ranges"
},
{
"value": "5.15.186",
"evidence": "/affected/1/ranges"
},
{
"value": "6.1.142",
"evidence": "/affected/1/ranges"
},
{
"value": "6.6.95",
"evidence": "/affected/1/ranges"
},
{
"value": "6.12.35",
"evidence": "/affected/1/ranges"
},
{
"value": "6.15.4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "CVE-2025-38090",
"aliases": [
"CVE-2025-38090"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "b6e8d4aa1110306378af0f3472a6b85a1f039a16"
},
{
"fixed": "a8b5ea2e302aa5cd00fc7addd8df53c9bde7b5f6"
},
{
"fixed": "c03ddc183249f03fc7e057e02cae6f89144d0123"
},
{
"fixed": "58f664614f8c3d6142ab81ae551e466dc6e092e8"
},
{
"fixed": "ecf5ee280b702270afb02f61b299d3dfe3ec7730"
},
{
"fixed": "1921781ec4a8824bd0c520bf9363e28a880d14ec"
},
{
"fixed": "1cce6ac47f4a2ac1766b8a188dc8c8f6d8df2a53"
},
{
"fixed": "6d5c6711a55c35ce09b90705546050408d9d4b61"
},
{
"fixed": "50695153d7ddde3b1696dbf0085be0033bf3ddb3"
}
]
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38090.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "4.8.0"
},
{
"fixed": "5.4.295"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.5.0"
},
{
"fixed": "5.10.239"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.11.0"
},
{
"fixed": "5.15.186"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.16.0"
},
{
"fixed": "6.1.142"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.6.95"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
},
{
"fixed": "6.12.35"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
},
{
"fixed": "6.15.4"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38090.json"
}
}
],
"modified": "2026-10-28T02:30:29.935317595Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/1921781ec4a8824bd0c520bf9363e28a880d14ec",
"https://git.kernel.org/stable/c/1cce6ac47f4a2ac1766b8a188dc8c8f6d8df2a53",
"https://git.kernel.org/stable/c/50695153d7ddde3b1696dbf0085be0033bf3ddb3",
"https://git.kernel.org/stable/c/58f664614f8c3d6142ab81ae551e466dc6e092e8",
"https://git.kernel.org/stable/c/6d5c6711a55c35ce09b90705546050408d9d4b61",
"https://git.kernel.org/stable/c/a8b5ea2e302aa5cd00fc7addd8df53c9bde7b5f6",
"https://git.kernel.org/stable/c/c03ddc183249f03fc7e057e02cae6f89144d0123",
"https://git.kernel.org/stable/c/ecf5ee280b702270afb02f61b299d3dfe3ec7730",
"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html",
"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38090.json",
"https://nvd.nist.gov/vuln/detail/CVE-2025-38090",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38090.json"
}
},
"related_cves": [
{
"value": "CVE-2025-38090",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 496472,
"published_at": "2025-06-30T07:29:45.565+00:00"
}