CVE-2026-74464 (GCVE-0-2026-74464)
Vulnerability from cvelistv5
Published
2026-08-15 12:27
Modified
2026-08-19 16:37
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: openvswitch: fix skb leak on flow key update failure during ct
ovs_ct_execute() always steals or frees the skb on failure while
ovs_flow_key_update() does not. So, if it fails and we return right
away, the skb ends up leaked.
Fix that by breaking instead and letting the common error handling
code at the bottom of the loop to free the skb properly.
This is a very unlikely scenario as it requires the packet to become
unparseable by applying a set of actions on a previously parseable skb,
but should be fixed nevertheless.
Reported by Sashiko.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ec0d043d05e6e3c0c2fac5de922c800c027c6386 Version: ec0d043d05e6e3c0c2fac5de922c800c027c6386 Version: ec0d043d05e6e3c0c2fac5de922c800c027c6386 Version: ec0d043d05e6e3c0c2fac5de922c800c027c6386 Version: ec0d043d05e6e3c0c2fac5de922c800c027c6386 Version: ec0d043d05e6e3c0c2fac5de922c800c027c6386 Version: ec0d043d05e6e3c0c2fac5de922c800c027c6386 Version: ec0d043d05e6e3c0c2fac5de922c800c027c6386 |
||
{
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"status": "unaffected",
"version": "0",
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{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.265",
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{
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"version": "5.15.216",
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},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.183",
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},
{
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"status": "unaffected",
"version": "6.6.151",
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},
{
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"status": "unaffected",
"version": "6.12.103",
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{
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}
],
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix skb leak on flow key update failure during ct\n\novs_ct_execute() always steals or frees the skb on failure while\novs_flow_key_update() does not. So, if it fails and we return right\naway, the skb ends up leaked.\n\nFix that by breaking instead and letting the common error handling\ncode at the bottom of the loop to free the skb properly.\n\nThis is a very unlikely scenario as it requires the packet to become\nunparseable by applying a set of actions on a previously parseable skb,\nbut should be fixed nevertheless.\n\nReported by Sashiko."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T16:37:05.367Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/b77126b2915900f69f9fcf5d624a77c8e6d50c31"
},
{
"url": "https://git.kernel.org/stable/c/6cc523eaee72c4e91894136cff64946ae9de2cda"
},
{
"url": "https://git.kernel.org/stable/c/22e0ca88090d89c128078062186b03bb5fdc4f98"
},
{
"url": "https://git.kernel.org/stable/c/736e972f3f8a304158345223ac6e816166a467ce"
},
{
"url": "https://git.kernel.org/stable/c/e84dfaac50aab45ad8c670da43e3aa1f97bd2a41"
},
{
"url": "https://git.kernel.org/stable/c/e0ba8eaef2a0d02a7a485e6a7157e47272b65cea"
},
{
"url": "https://git.kernel.org/stable/c/393f3c72600ab6721d732a0ab245bc896c5b28fc"
},
{
"url": "https://git.kernel.org/stable/c/bc62e843bc48f933da765ce47079fd992e535794"
}
],
"title": "net: openvswitch: fix skb leak on flow key update failure during ct",
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},
"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-74464",
"datePublished": "2026-08-15T12:27:03.786Z",
"dateReserved": "2026-08-15T05:44:03.901Z",
"dateUpdated": "2026-08-19T16:37:05.367Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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