CVE-2026-89498Medium· 5.5▾ SunlitA flaw was found in OrangeFS within the Linux kernel. A local client, by sending a specially crafted readdir downcall with a declared trailer_size exceeding the actual supplied bytes, can trigger a double-free vulnerability. This memory co…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · 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%
— → 4.1
none → medium
— → 4.1
none → medium
0.2% → 0.2%
— → 4.1
none → medium
Last analysed / modified upstream
4.1 → 5.5
A flaw was found in OrangeFS within the Linux kernel. A local client, by sending a specially crafted readdir downcall with a declared trailer_size exceeding the actual supplied bytes, can trigger a double-free vulnerability. This memory corruption issue can lead to a system crash, resulting in a denial of service.
kernel: orangefs: fix double-free of trailer_buf on readdir copy failure — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-16.
Not affected:
Refer to the advisory for fix availability.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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