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Message-ID: <2024111906-CVE-2024-53086-af24@gregkh>
Date: Tue, 19 Nov 2024 18:45:06 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-53086: drm/xe: Drop VM dma-resv lock on xe_sync_in_fence_get failure in exec IOCTL

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

drm/xe: Drop VM dma-resv lock on xe_sync_in_fence_get failure in exec IOCTL

Upon failure all locks need to be dropped before returning to the user.

(cherry picked from commit 7d1a4258e602ffdce529f56686925034c1b3b095)

The Linux kernel CVE team has assigned CVE-2024-53086 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 6.10 with commit 58480c1c912f and fixed in 6.11.8 with commit 96397b1e25dd
	Issue introduced in 6.10 with commit 58480c1c912f and fixed in 6.12 with commit 64a2b6ed4bfd
	Issue introduced in 6.8.2 with commit 43c8a525cbc5

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-2024-53086
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:
	drivers/gpu/drm/xe/xe_exec.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/96397b1e25dda8389dea63ec914038a170bf953d
	https://git.kernel.org/stable/c/64a2b6ed4bfd890a0e91955dd8ef8422a3944ed9

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