Unrated severityNVD Advisory· Published May 20, 2024· Updated May 4, 2025

drm/ast: Fix soft lockup

CVE-2024-35952

Description

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

There is a while-loop in ast_dp_set_on_off() that could lead to infinite-loop. This is because the register, VGACRI-Dx, checked in this API is a scratch register actually controlled by a MCU, named DPMCU, in BMC.

These scratch registers are protected by scu-lock. If suc-lock is not off, DPMCU can not update these registers and then host will have soft lockup due to never updated status.

DPMCU is used to control DP and relative registers to handshake with host's VGA driver. Even the most time-consuming task, DP's link training, is less than 100ms. 200ms should be enough.

Affected products

osv-coords96 versions
pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-livepatch-MICRO-6-0-RT_Update_5&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-livepatch-MICRO-6-0-RT_Update_5&distro=SUSE%20Linux%20Micro%206.1 pkg:rpm/suse/kernel-livepatch-SLE15-SP5-RT_Update_16&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_15&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.1 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.1 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6
< 5.14.21-150500.55.68.1+ 95 more
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.1
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.33.57.1
- (no CPE)range: < 6.4.0-150600.8.5.4
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.55.68.1.150500.6.31.1
- (no CPE)range: < 6.4.0-150600.23.7.3.150600.12.2.7
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.4
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.1
- (no CPE)range: < 5.14.21-150500.13.58.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.13.58.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.33.57.1
- (no CPE)range: < 6.4.0-150600.8.5.4
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.2
- (no CPE)range: < 5.14.21-150500.13.58.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.33.57.1
- (no CPE)range: < 6.4.0-150600.8.5.1
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.1
- (no CPE)range: < 5.14.21-150500.13.58.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.33.57.1
- (no CPE)range: < 6.4.0-150600.8.5.4
- (no CPE)range: < 5.14.21-150500.55.68.1.150500.6.31.1
- (no CPE)range: < 5.14.21-150500.55.68.1.150500.6.31.1
- (no CPE)range: < 6.4.0-150600.23.7.3.150600.12.2.7
- (no CPE)range: < 6.4.0-17.1.1.51
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 6.4.0-18.1
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.4
- (no CPE)range: < 6.4.0-18.1
- (no CPE)range: < 1-1.1
- (no CPE)range: < 1-1.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 1-150600.1.5.1
- (no CPE)range: < 1-150600.13.3.7
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
- (no CPE)range: < 5.14.21-150500.13.58.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.13.58.1
- (no CPE)range: < 6.4.0-9.1
- (no CPE)range: < 6.4.0-25.1
- (no CPE)range: < 5.14.21-150500.13.58.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.33.57.1
- (no CPE)range: < 6.4.0-150600.8.5.4
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.2
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.2
- (no CPE)range: < 6.4.0-18.1
- (no CPE)range: < 5.14.21-150500.13.58.1
- (no CPE)range: < 6.4.0-9.1
- (no CPE)range: < 6.4.0-25.1
- (no CPE)range: < 5.14.21-150500.13.58.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.33.57.1
- (no CPE)range: < 6.4.0-150600.8.5.1
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.1
- (no CPE)range: < 5.14.21-150500.13.58.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.55.68.1
- (no CPE)range: < 6.4.0-150600.23.7.3
Linux/Linuxcpe-rescue
Range: 5.19

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000