CVE-2026-89532High· 7.0▾ TwilightA flaw was found in the Linux kernel's svcrdma component. A remote attacker could send a specially crafted network packet that causes an integer underflow in the `pcl_for_each_segment` function when processing a chunk with zero segments. T…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38.5 · likelihood 0.1 · 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%
— → 5.9
none → medium
— → 5.9
none → medium
— → 9.1
none → critical
9.1 → 5.9
critical → medium
5.9 → 9.1
medium → critical
0.2% → 0.5%
9.1 → 7
critical → high
Last analysed / modified upstream
A flaw was found in the Linux kernel's svcrdma component. A remote attacker could send a specially crafted network packet that causes an integer underflow in the pcl_for_each_segment function when processing a chunk with zero segments. This vulnerability leads to an out-of-bounds read, resulting in a general protection fault and a denial of service.
kernel: svcrdma: Fix pcl_for_each_segment for empty chunks — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-16.
Affected:
No fix planned:
Not affected:
Affected
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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