CVE-2026-89533 Linux Kernel - Integer Overflow

Linux kernel contains an integer underflow and arithmetic defect in svcrdma's svc_rdma_read_chunk_range function, caused by incorrect offset handling in segment length calculation, letting attackers trigger excessive memory allocation, exploit requires crafted RDMA read chunks.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
EPSS
0.50% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Integer Overflow
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
11 September 2026
Updated
15 October 2026

References

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