CVE-2026-43010
kernel: bpf: Reject sleepable kprobe_multi programs at attach time
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 1, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel. A local user could attach a sleepable BPF kprobe_multi program, which allows sleepable helper functions, such as bpf_copy_from_user(), to be invoked from a non-sleepable context. This incorrect handling can lead to a system crash, resulting in a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-663 · Use of a Non-reentrant Function in a Concurrent Context