5.5

CVE-2022-50096: x86/kprobes: Update kcb status flag after singlestepping

Analyzed
AliasesUBUNTU-CVE-2022-50096DEBIAN-CVE-2022-50096
Published 18-06-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50096 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
RHSA-2024:9315

Timeline

  1. 18-06-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.24% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu94 products
  • linux< 5.15.0-53.59
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1023.27
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ ba7d1dae9fe866abe74bb1e849fb85983b7c4c37, < edc2ac7c7265b33660fa0190898966b49966b855 | ≥ 6256e668b7af9d81472e03c6a171630c08f8858a, < 1cbf3882cb372bbe752efd7c3045ca1c9ab40ac6 | ≥ 6256e668b7af9d81472e03c6a171630c08f8858a, < b9c3401f7cac6ae291a16784dadcd1bf116218fe | ≥ 6256e668b7af9d81472e03c6a171630c08f8858a, < 663cdda2716b70751df9c7e60b81bd0850fdfe3c | ≥ 6256e668b7af9d81472e03c6a171630c08f8858a, < dec8784c9088b131a1523f582c2194cfc8107dc0 | 5.13
  • linux_kernel≥ 5.13, < 5.15.61 | ≥ 5.16, < 5.18.18 | ≥ 5.19, < 5.19.2
Debian1 product
  • linux< 6.0.2-1

3 vendors · 97 products

References

8 links