CVE-2026-31483

MEDIUM EPSS 2.4%
Published Apr 22, 20262mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: s390/syscalls: Add spectre boundary for syscall dispatch table The s390 syscall number is directly controlled by userspace, but does not have an array_index_nospec() boundary to prevent access past the syscall function pointer tables.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 14

VendorProductVersionRange
linuxlinux_kernel*≥5.12.1  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.168
linuxlinux_kernel*≥6.2  –  <6.6.131
linuxlinux_kernel*≥6.7  –  <6.12.80
linuxlinux_kernel*≥6.13  –  <6.18.21
linuxlinux_kernel*≥6.19  –  <6.19.11
linuxlinux_kernel5.12any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/1cb9c7bc9025c637564fabc7fcc3c9343949e310
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3c3b97064764899c39a0abbd35a6caa031e70333
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/48b8814e25d073dd84daf990a879a820bad2bcbd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4d05dd18d867d58c6952a3bc260d244899da7256
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7a5260fbc6e79a1595328ec5c6aa3f937504a1f0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/87776f02449e3bded95b2ccbd6b012e9ae64e6f3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f8c444b918d639e1f9a621ee20fe481c1d10dfc4
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1cb9c7bc9025c637564fabc7fcc3c9343949e310
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3c3b97064764899c39a0abbd35a6caa031e70333
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/48b8814e25d073dd84daf990a879a820bad2bcbd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4d05dd18d867d58c6952a3bc260d244899da7256
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7a5260fbc6e79a1595328ec5c6aa3f937504a1f0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/87776f02449e3bded95b2ccbd6b012e9ae64e6f3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f8c444b918d639e1f9a621ee20fe481c1d10dfc4
    Patch