CVE-2026-89528 Linux Kernel svcrdma - Denial of Service

Linux kernel svcrdma contains a null pointer dereference caused by improper validation of cumulative Read segment lengths exceeding the page budget in svc_rdma_build_read_segment, letting remote attackers cause denial of service, exploit requires crafted request.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.66% chance of exploitation in 30 days
View the NVD record ↗

Details

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

Vendor fix

Update to the latest Linux kernel version with the svcrdma patch.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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