CVE-2026-89799

In the Linux kernel, the following vulnerability has been resolved: bpf: Disable preemption in bpf_get_stackid The get_perf_callchain call needs disabled preemption plus we need it disabled as long as we access its returned trace entries buffer. Note the bpf_get_stackid_pe function is executed already with preemption disabled.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/15f1bd8574662f1b7b26aaa2e23ebf4066f0117d
https://git.kernel.org/stable/c/c4efdc1d4cb3e9183e41a1b2a5e0901dbbb31cdf
https://git.kernel.org/stable/c/ccf481d73bce6e851cec364fe831c86fe66877cf

Configurations

No configuration.

History

16 Sep 2026, 15:18

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8

Information

Published : 2026-09-16 11:16

Updated : 2026-09-16 15:18

NVD link : CVE-2026-89799

Mitre link : CVE-2026-89799

CVE.ORG link : CVE-2026-89799

JSON object : View

Products Affected

No product.

CWE

No CWE.

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