CVE-2026-43491
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net: qrtr: ns: Limit the maximum server registration per node
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Limit the maximum server registration per node Current code does no bound checking on the number of servers added per node. A malicious client can flood NEW_SERVER messages and exhaust memory. Fix this issue by limiting the maximum number of server registrations to 256 per node. If the NEW_SERVER message is received for an old port, then don't restrict it as it will get replaced. While at it, also rate limit the error messages in the failure path of qrtr_ns_worker(). Note that the limit of 256 is chosen based on the current platform requirements. If requirement changes in the future, this limit can be increased.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0c2204a4ad710d95d348ea006f14ba926e842ffd | affected | git | b48fc702b20233b809f01053232c3cd5083c97b4 | Unavailable | None listed |
| 0c2204a4ad710d95d348ea006f14ba926e842ffd | affected | git | 991c431077b19176d3fe3bb54054c063776a8cdc | Unavailable | None listed |
| 0c2204a4ad710d95d348ea006f14ba926e842ffd | affected | git | 94914731ca0b99899dceadd80d2df00584a688ca | Unavailable | None listed |
| 0c2204a4ad710d95d348ea006f14ba926e842ffd | affected | git | e6f6cd501fb54060940a6eb3f4103eeb5e426ae7 | Unavailable | None listed |
| 0c2204a4ad710d95d348ea006f14ba926e842ffd | affected | git | 3efaad55cad1ded429e3a873bfece389058a526b | Unavailable | None listed |
| 0c2204a4ad710d95d348ea006f14ba926e842ffd | affected | git | 35fb4a0c077c5d1049c2628b769e0a1b1e65df0d | Unavailable | None listed |
| 0c2204a4ad710d95d348ea006f14ba926e842ffd | affected | git | 868202aa2adae427060a42d5bd663b4d782ec02c | Unavailable | None listed |
| 0c2204a4ad710d95d348ea006f14ba926e842ffd | affected | git | d5ee2ff98322337951c56398e79d51815acbf955 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.7 | Unavailable | None listed |
| 5.10.265 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.216 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.140 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.86 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.27 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.4 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |