CVE-2026-89539Medium· 5.9▾ SunlitA flaw was found in the SUNRPC subsystem of the Linux kernel. The `gssx_dec_option_array()` function, responsible for decoding options, does not correctly handle replies containing duplicate `CREDS_VALUE` entries. This oversight causes the…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 32.5 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
Last analysed / modified upstream
— → 5.9
none → medium
0.2% → 0.2%
A flaw was found in the SUNRPC subsystem of the Linux kernel. The gssx_dec_option_array() function, responsible for decoding options, does not correctly handle replies containing duplicate CREDS_VALUE entries. This oversight causes the system to allocate memory for credentials multiple times without releasing previous allocations, leading to a memory leak. A remote attacker could exploit this to consume system resources.
kernel: Linux kernel: SUNRPC memory leak due to duplicate CREDS_VALUE options — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-16.
Affected:
No fix planned:
Fix deferred
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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