CVE-2025-37778

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix dangling pointer in krb_authenticate krb_authenticate frees sess->user and does not set the pointer to NULL. It calls ksmbd_krb5_authenticate to reinitialise sess->user but that function may return without doing so. If that happens then smb2_sess_setup, which calls krb_authenticate, will be accessing free'd memory when it later uses sess->user.

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/1db2451de23e98bc864c6a6e52aa0d82c91cb325	Patch
https://git.kernel.org/stable/c/1e440d5b25b7efccb3defe542a73c51005799a5f	Patch
https://git.kernel.org/stable/c/6e30c0e10210c714f3d4453dc258d4abcc70364e	Patch
https://git.kernel.org/stable/c/d5b554bc8d554ed6ddf443d3db2fad9f665cec10	Patch
https://git.kernel.org/stable/c/e83e39a5f6a01a81411a4558a59a10f87aa88dd6	Patch
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html	Third Party Advisory Mailing List

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:6.15:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.15:rc2::::::

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-05-01 14:15

Updated : 2026-03-17 14:49

NVD link : CVE-2025-37778

Mitre link : CVE-2025-37778

CVE.ORG link : CVE-2025-37778

JSON object : View

Products Affected

linux

linux_kernel

debian

debian_linux

CWE

CWE-416

Use After Free

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