net: ftgmac100: fix ring allocation unwind on open failure
In the Linux kernel, the following vulnerability has been resolved: net: ftgmac100: fix ring allocation unwind on open failure ftgmac100_alloc_rings() allocates rx_skbs, tx_skbs, rxdes, txdes, and rx_scratch in stages. On intermediate failures it returned -ENOMEM directly, leaking resources allocated earlier in the function. Rework the failure path to use staged local unwind labels and free allocated resources in reverse order before returning -ENOMEM. This matches common netdev allocation cleanup style.
CVE-2026-31737
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-2026-31737
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": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
"lessThan": "184b3a500d60ea48d1b176103cff1706c456edf3",
"versionType": "git"
},
{
"status": "affected",
"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
"lessThan": "78da43320d9d6ed788147fb085184e4fc801f057",
"versionType": "git"
},
{
"status": "affected",
"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
"lessThan": "a7e1bf392acf11dc4209820fef75758f6e42bd65",
"versionType": "git"
},
{
"status": "affected",
"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
"lessThan": "8a71911fc7eeea930153322bc1efc065db8cd97e",
"versionType": "git"
},
{
"status": "affected",
"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
"lessThan": "d45230081f19c280096241353c26b0de457de795",
"versionType": "git"
},
{
"status": "affected",
"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
"lessThan": "8351d18989c8642fc53e2e12d94e42314a39b078",
"versionType": "git"
},
{
"status": "affected",
"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
"lessThan": "82f86111f0704ab2ded11a2033bc6cf0be3e09ea",
"versionType": "git"
},
{
"status": "affected",
"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
"lessThan": "c0fd0fe745f5e8c568d898cd1513d0083e46204a",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/faraday/ftgmac100.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.253",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.203",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.168",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.134",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.81",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.22",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.12",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/faraday/ftgmac100.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-31737
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #28319 · Revision 1
- Added to Heist Feed
- Publisher date