ipvs: do not keep dest_dst if dev is going down
In the Linux kernel, the following vulnerability has been resolved: ipvs: do not keep dest_dst if dev is going down There is race between the netdev notifier ip_vs_dst_event() and the code that caches dst with dev that is going down. As the FIB can be notified for the closed device after our handler finishes, it is possible valid route to be returned and cached resuling in a leaked dev reference until the dest is not removed. To prevent new dest_dst to be attached to dest just after the handler dropped the old one, add a netif_running() check to make sure the notifier handler is not currently running for device that is closing.
CVE-2026-45917
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-2026-45917
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": "7a4f0761fce32ff4918a7c23b08db564ad33092d",
"lessThan": "11d35b11013442576f35fd9e8a8fc16155101906",
"versionType": "git"
},
{
"status": "affected",
"version": "7a4f0761fce32ff4918a7c23b08db564ad33092d",
"lessThan": "64af43033503458c46023e56d6ae7bb0f824b55f",
"versionType": "git"
},
{
"status": "affected",
"version": "7a4f0761fce32ff4918a7c23b08db564ad33092d",
"lessThan": "bae53b3baf2ff2f45f9205c438818fc055601a54",
"versionType": "git"
},
{
"status": "affected",
"version": "7a4f0761fce32ff4918a7c23b08db564ad33092d",
"lessThan": "024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e",
"versionType": "git"
},
{
"status": "affected",
"version": "7a4f0761fce32ff4918a7c23b08db564ad33092d",
"lessThan": "8fde939b0206afc1d5846217a01a16b9bc8c7896",
"versionType": "git"
}
],
"programFiles": [
"net/netfilter/ipvs/ip_vs_xmit.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.39"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.39",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.75",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.14",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.4",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/netfilter/ipvs/ip_vs_xmit.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-45917
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46308 · Revision 1
- Added to Heist Feed
- Publisher date