net: qrtr: ns: Limit the maximum number of lookups
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Limit the maximum number of lookups Current code does no bound checking on the number of lookups a client can perform. Though the code restricts the lookups to local clients, there is still a possibility of a malicious local client sending a flood of NEW_LOOKUP messages over the same socket. Fix this issue by limiting the maximum number of lookups to 64 globally. Since the nameserver allows only atmost one local observer, this global lookup count will ensure that the lookups stay within the limit. Note that, limit of 64 is chosen based on the current platform requirements. If requirement changes in the future, this limit can be increased.
CVE-2026-46026
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-2026-46026
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": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
"lessThan": "bd69e0e8a7643ba5385f19f479e8e3da71f8d495",
"versionType": "git"
},
{
"status": "affected",
"version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
"lessThan": "91cb30b6bb1880ba0748ca059bef50b8ac13793d",
"versionType": "git"
},
{
"status": "affected",
"version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
"lessThan": "6e3675251fcea06caecc61eb76462467558adfa6",
"versionType": "git"
},
{
"status": "affected",
"version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
"lessThan": "0dbec101a7076e9b1e4bd1876f7cf07c56ff4ce3",
"versionType": "git"
},
{
"status": "affected",
"version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
"lessThan": "76adf8f69b0bb3ab20be7c58f5d555027332d113",
"versionType": "git"
},
{
"status": "affected",
"version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
"lessThan": "20855cef7e659ef84ac73251256fa530819b2346",
"versionType": "git"
},
{
"status": "affected",
"version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
"lessThan": "2b930bc77e00cb27e1d6e1d497b3b596283465ef",
"versionType": "git"
},
{
"status": "affected",
"version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
"lessThan": "5640227d9a21c6a8be249a10677b832e7f40dc55",
"versionType": "git"
}
],
"programFiles": [
"net/qrtr/ns.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.7",
"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": "6.6.140",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.86",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.27",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.4",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/qrtr/ns.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-46026
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #28375 · Revision 1
- Added to Heist Feed
- Publisher date