CVE-2026-23156

In the Linux kernel, the following vulnerability has been resolved: efivarfs: fix error propagation in efivar_entry_get() efivar_entry_get() always returns success even if the underlying __efivar_entry_get() fails, masking errors. This may result in uninitialized heap memory being copied to userspace in the efivarfs_file_read() path. Fix it by returning the error from __efivar_entry_get().

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/3960f1754664661a970dc9ebbab44ff93a0b4c42	Patch
https://git.kernel.org/stable/c/4b22ec1685ce1fc0d862dcda3225d852fb107995	Patch
https://git.kernel.org/stable/c/510a16f1c5c1690b33504052bc13fbc2772c23f8	Patch
https://git.kernel.org/stable/c/89b8ca709eeeabcc11ebba64806677873a2787a8	Patch
https://git.kernel.org/stable/c/e4e15a0a4403c96d9898d8398f0640421df9cb16	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:6.19:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc6::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc7::::::

History

No history.

Information

Published : 2026-02-14 16:15

Updated : 2026-06-17 10:21

NVD link : CVE-2026-23156

Mitre link : CVE-2026-23156

CVE.ORG link : CVE-2026-23156

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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