CVE-2026-43491None▾ SunlitIn 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…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
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.
Linux >= 0c2204a4ad710d95d348ea006f14ba926e842ffd < b48fc702b20233b809f01053232c3cd5083c97b4Linux >= 0c2204a4ad710d95d348ea006f14ba926e842ffd < 991c431077b19176d3fe3bb54054c063776a8cdcLinux >= 0c2204a4ad710d95d348ea006f14ba926e842ffd < 94914731ca0b99899dceadd80d2df00584a688caLinux >= 0c2204a4ad710d95d348ea006f14ba926e842ffd < e6f6cd501fb54060940a6eb3f4103eeb5e426ae7Linux >= 0c2204a4ad710d95d348ea006f14ba926e842ffd < 3efaad55cad1ded429e3a873bfece389058a526bLinux >= 0c2204a4ad710d95d348ea006f14ba926e842ffd < 35fb4a0c077c5d1049c2628b769e0a1b1e65df0dLinux >= 0c2204a4ad710d95d348ea006f14ba926e842ffd < 868202aa2adae427060a42d5bd663b4d782ec02cLinux >= 0c2204a4ad710d95d348ea006f14ba926e842ffd < d5ee2ff98322337951c56398e79d51815acbf955Linux 5.7Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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