nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()
In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu() nvme_tcp_recv_pdu() doesn't check the validity of the header length. When header digests are enabled, a target might send a packet with an invalid header length (e.g. 255), causing nvme_tcp_verify_hdgst() to access memory outside the allocated area and cause memory corruptions by overwriting it with the calculated digest. Fix this by rejecting packets with an unexpected header length.
CVE-2025-21927
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2025-21927
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3f2304f8c6d6ed97849057bd16fee99e434ca796",
"lessThan": "9d22cf5cc94cd7dee84773ec41db78a46107dfa3",
"versionType": "git"
},
{
"status": "affected",
"version": "3f2304f8c6d6ed97849057bd16fee99e434ca796",
"lessThan": "9fbc953d6b38bc824392e01850f0aeee3b348722",
"versionType": "git"
},
{
"status": "affected",
"version": "3f2304f8c6d6ed97849057bd16fee99e434ca796",
"lessThan": "22b06c89aa6b2d1ecb8aea72edfb9d53af8d5126",
"versionType": "git"
},
{
"status": "affected",
"version": "3f2304f8c6d6ed97849057bd16fee99e434ca796",
"lessThan": "ad95bab0cd28ed77c2c0d0b6e76e03e031391064",
"versionType": "git"
}
],
"programFiles": [
"drivers/nvme/host/tcp.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.19",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.7",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/nvme/host/tcp.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-21927
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #45953 · Revision 1
- Added to Heist Feed
- Publisher date