5.5

CVE-2022-48804: vt_ioctl: fix array_index_nospec in vt_setactivate

Modified
AliasesUBUNTU-CVE-2022-48804DEBIAN-CVE-2022-48804
Published 16-07-2024Last modified 23-05-2026

Vulnerability summary

CVE-2022-48804 is a medium (CVSS 5.5) Integer Underflow (Wrap or Wraparound) vulnerability in linux. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 23.7% 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
0.31%
0%100%
Low · 0.00 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 12 · Related 8
RHSA-2024:10771RHSA-2024:7000RHSA-2024:7001RHSA-2024:9315SUSE-SU-2024:2892-1SUSE-SU-2024:2894-1

Timeline

  1. 16-07-2024
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: vt_ioctl: fix array_index_nospec in vt_setactivate array_index_nospec ensures that an out-of-bounds value is set to zero on the transient path. Decreasing the value by one afterwards causes a transient integer underflow. vsa.console should be decreased first and then sanitized with array_index_nospec. Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU Amsterdam.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

24%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.31% 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

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
  • linuxAll versions (No fix recorded) | < 4.15.0-177.186 | < 5.4.0-110.124
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1128.137 | < 5.4.0-1073.78
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 0ec459ec174031fad02a55e622cf2fc0d2e75a25, < 830c5aa302ec16b4ee641aec769462c37f802c90 | ≥ 4334a6ae867aa12f01c1755368fd0de4c926ac75, < 2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0 | ≥ e97267cb4d1ee01ca0929638ec0fcbb0904f903d, < 170325aba4608bde3e7d21c9c19b7bc266ac0885 | ≥ e97267cb4d1ee01ca0929638ec0fcbb0904f903d, < ae3d57411562260ee3f4fd5e875f410002341104 | ≥ e97267cb4d1ee01ca0929638ec0fcbb0904f903d, < 778302ca09498b448620edd372dc908bebf80bdf | ≥ e97267cb4d1ee01ca0929638ec0fcbb0904f903d, < ffe54289b02e9c732d6f04c8ebbe3b2d90d32118 | ≥ e97267cb4d1ee01ca0929638ec0fcbb0904f903d, < 6550bdf52846f85a2a3726a5aa0c7c4399f2fc02 | ≥ e97267cb4d1ee01ca0929638ec0fcbb0904f903d, < 61cc70d9e8ef5b042d4ed87994d20100ec8896d9 | 458697ab18b512445ac273ce68a9f8fd623fc0a3 | 1aa698b65186c13ed775896ed1dfec7c26c73d60 | 52ef74c21c277e50de771fc722d814a830b3036b | ≥ 4.9.130, < 4.9.302 | ≥ 4.14.73, < 4.14.267 | ≥ 3.16.62, < 3.17 | ≥ 4.4.159, < 4.5 | ≥ 4.18.11, < 4.19 | 4.19
  • linux_kernel< 4.9.302 | ≥ 4.10, < 4.14.267 | ≥ 4.15, < 4.19.320 | ≥ 4.20, < 5.4.180 | ≥ 5.5, < 5.10.101 | ≥ 5.11, < 5.15.24 | ≥ 5.16, < 5.16.10 | 5.17:rc1 | 5.17:rc2 | 5.17:rc3
Debian1 product
  • linux< 5.16.10-1

3 vendors · 97 products

References

12 links
Show all 12 references