CVE-2026-31483

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.12:-::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc4::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc5::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc6::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc7::::::

History

No history.

Information

Published : 2026-04-22 14:16

Updated : 2026-06-17 10:33

NVD link : CVE-2026-31483

Mitre link : CVE-2026-31483

CVE.ORG link : CVE-2026-31483

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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