vulnerability

Red Hat: CVE-2022-50096: kernel: x86/kprobes: Update kcb status flag after singlestepping (Multiple Advisories)

Name: Red Hat: CVE-2022-50096: kernel: x86/kprobes: Update kcb status flag after singlestepping (Multiple Advisories)
Creator: Red Hat
Published: 2025-06-18T00:00:00.000Z
Keywords: CVE, Red Hat, 2022, 50096, kernel, redhat-upgrade-kernel, redhat-upgrade-kernel-rt, Severity 4

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Severity

CVSS

(AV:L/AC:M/Au:M/C:N/I:N/A:C)

Published

Jun 18, 2025

Added

Jul 9, 2025

Modified

Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

x86/kprobes: Update kcb status flag after singlestepping

Fix kprobes to update kcb (kprobes control block) status flag to
KPROBE_HIT_SSDONE even if the kp->post_handler is not set.

This bug may cause a kernel panic if another INT3 user runs right
after kprobes because kprobe_int3_handler() misunderstands the
INT3 is kprobe's single stepping INT3.

Solutions

redhat-upgrade-kernelredhat-upgrade-kernel-rt

References

EUVD-EUVD-2022-55362
NVD-CVE-2022-50096
REDHAT-RHSA-2024:9315
https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-55362

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