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Message-ID: <2025041818-CVE-2025-38575-2d0f@gregkh>
Date: Fri, 18 Apr 2025 09:02:23 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-38575: ksmbd: use aead_request_free to match aead_request_alloc
From: Greg Kroah-Hartman <gregkh@...nel.org>
Description
===========
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: use aead_request_free to match aead_request_alloc
Use aead_request_free() instead of kfree() to properly free memory
allocated by aead_request_alloc(). This ensures sensitive crypto data
is zeroed before being freed.
The Linux kernel CVE team has assigned CVE-2025-38575 to this issue.
Affected and fixed versions
===========================
Issue introduced in 5.15 with commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 and fixed in 5.15.180 with commit 571b342d4688801fc1f6a1934389dac09425dc93
Issue introduced in 5.15 with commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 and fixed in 6.1.134 with commit a6b594868268c3a7bfaeced912525cd2c445529a
Issue introduced in 5.15 with commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 and fixed in 6.6.87 with commit 1de7fec4d3012672e31eeb6679ea60f7ca010ef9
Issue introduced in 5.15 with commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 and fixed in 6.12.23 with commit 3e341dbd5f5a6e5a558e67da80731dc38a7f758c
Issue introduced in 5.15 with commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 and fixed in 6.13.11 with commit aef10ccd74512c52e30c5ee19d0031850973e78d
Issue introduced in 5.15 with commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 and fixed in 6.14.2 with commit 46caeae23035192b9cc41872c827f30d0233f16e
Issue introduced in 5.15 with commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 and fixed in 6.15-rc1 with commit 6171063e9d046ffa46f51579b2ca4a43caef581a
Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.
Unaffected versions might change over time as fixes are backported to
older supported kernel versions. The official CVE entry at
https://cve.org/CVERecord/?id=CVE-2025-38575
will be updated if fixes are backported, please check that for the most
up to date information about this issue.
Affected files
==============
The file(s) affected by this issue are:
fs/smb/server/auth.c
Mitigation
==========
The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes. Individual
changes are never tested alone, but rather are part of a larger kernel
release. Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all. If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
https://git.kernel.org/stable/c/571b342d4688801fc1f6a1934389dac09425dc93
https://git.kernel.org/stable/c/a6b594868268c3a7bfaeced912525cd2c445529a
https://git.kernel.org/stable/c/1de7fec4d3012672e31eeb6679ea60f7ca010ef9
https://git.kernel.org/stable/c/3e341dbd5f5a6e5a558e67da80731dc38a7f758c
https://git.kernel.org/stable/c/aef10ccd74512c52e30c5ee19d0031850973e78d
https://git.kernel.org/stable/c/46caeae23035192b9cc41872c827f30d0233f16e
https://git.kernel.org/stable/c/6171063e9d046ffa46f51579b2ca4a43caef581a
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