CVE-2026-89511 Linux Kernel qede - Denial of Service

Linux kernel qede driver contains a null pointer dereference caused by uninitialized tpa_info->buffer.data in TPA fragment processing, letting attackers cause kernel panic under memory pressure, exploit requires memory pressure conditions.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.71% 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 Linux kernel version containing the fix for commit 8a8633978b84 or later.

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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