net: openvswitch: fix possible kfree_skb of ERR_PTR
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix possible kfree_skb of ERR_PTR After the patch in the "Fixes" tag, the allocation of the "reply" skb can happen either before or after locking the ovs_mutex. However, error cleanups still follow the classical reversed order, assuming "reply" is allocated before locking: it is freed after unlocking. If "reply" allocation happens after locking the mutex and it fails, "reply" is left with an ERR_PTR, and execution jumps to the correspondent cleanup stage which will try to free an invalid pointer. Fix this by setting the pointer to NULL after having saved its error value.
CVE-2026-53227
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-2026-53227
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": "893f139b9a6c00c097b9082a90f3041cfb3a0d20",
"lessThan": "e248fb2e680deb2bd37bac551b72638fe4938a76",
"versionType": "git"
},
{
"status": "affected",
"version": "893f139b9a6c00c097b9082a90f3041cfb3a0d20",
"lessThan": "0bb5b2dc1b90aa7dd1473fc8c4d813a29255ff8d",
"versionType": "git"
},
{
"status": "affected",
"version": "893f139b9a6c00c097b9082a90f3041cfb3a0d20",
"lessThan": "971b1b37774f13acc5add0a2843f8598446b8598",
"versionType": "git"
},
{
"status": "affected",
"version": "893f139b9a6c00c097b9082a90f3041cfb3a0d20",
"lessThan": "25fdf53698535fe8790237f5a8a9626791429785",
"versionType": "git"
},
{
"status": "affected",
"version": "893f139b9a6c00c097b9082a90f3041cfb3a0d20",
"lessThan": "e3d509a1b71396e1452060dbf84a805fd1c3c549",
"versionType": "git"
},
{
"status": "affected",
"version": "893f139b9a6c00c097b9082a90f3041cfb3a0d20",
"lessThan": "ecc55aad3390129a87106841f4b68bf3d70c9264",
"versionType": "git"
},
{
"status": "affected",
"version": "893f139b9a6c00c097b9082a90f3041cfb3a0d20",
"lessThan": "895d1dd9057cde1687fa0f4286d47ceed0b82997",
"versionType": "git"
},
{
"status": "affected",
"version": "893f139b9a6c00c097b9082a90f3041cfb3a0d20",
"lessThan": "ee30dd2909d8b98619f4341c70ec8dc8e155ab02",
"versionType": "git"
}
],
"programFiles": [
"net/openvswitch/datapath.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.259",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.210",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.176",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.143",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.94",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.36",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.13",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/openvswitch/datapath.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-53227
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #28439 · Revision 1
- Added to Heist Feed
- Publisher date