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CVE-2024-57876— drm/dp_mst: Fix resetting msg rx state after topology removal

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于drm/dp_mst模块在移除MST拓扑时，可能导致消息接收状态重置与消息解析竞争，导致内存损坏。

AI Predicted 4.4 Difficulty: Moderate EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 17

VendorProduct Version RangeStatus
Linux Linux b30fcedeba643ca16eaa6212c1245598b7cd830d< 94b33b2d7640e807869451384eb88321dd0ffbd4 affected
1d082618bbf3b6755b8cc68c0a8122af2842d593< d834d20d2e86c52ed5cab41763fa61e6071680ef affected
1d082618bbf3b6755b8cc68c0a8122af2842d593< be826b4451fd187a7c0b04be4f8243d5df6e0450 affected
1d082618bbf3b6755b8cc68c0a8122af2842d593< a6fa67d26de385c3c7a23c1e109a0e23bfda4ec7 affected
ee4a4282d78d96e07e714c28ca54679713fa2157 affected
db35e49413a4d03ea0c003598803e49956f59324 affected
a579ed4613b5a64074963988ad481e43cf3b917b affected
6.1.18< 6.1.120 affected
… +9 more rows
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I. Basic Information for CVE-2024-57876

Vulnerability Information
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Vulnerability Title
drm/dp_mst: Fix resetting msg rx state after topology removal
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/dp_mst: Fix resetting msg rx state after topology removal If the MST topology is removed during the reception of an MST down reply or MST up request sideband message, the drm_dp_mst_topology_mgr::up_req_recv/down_rep_recv states could be reset from one thread via drm_dp_mst_topology_mgr_set_mst(false), racing with the reading/parsing of the message from another thread via drm_dp_mst_handle_down_rep() or drm_dp_mst_handle_up_req(). The race is possible since the reader/parser doesn't hold any lock while accessing the reception state. This in turn can lead to a memory corruption in the reader/parser as described by commit bd2fccac61b4 ("drm/dp_mst: Fix MST sideband message body length check"). Fix the above by resetting the message reception state if needed before reading/parsing a message. Another solution would be to hold the drm_dp_mst_topology_mgr::lock for the whole duration of the message reception/parsing in drm_dp_mst_handle_down_rep() and drm_dp_mst_handle_up_req(), however this would require a bigger change. Since the fix is also needed for stable, opting for the simpler solution in this patch.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于drm/dp_mst模块在移除MST拓扑时，可能导致消息接收状态重置与消息解析竞争，导致内存损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux b30fcedeba643ca16eaa6212c1245598b7cd830d ~ 94b33b2d7640e807869451384eb88321dd0ffbd4 -
Linux Linux 6.3 -

II. Public POCs for CVE-2024-57876

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III. Intelligence Information for CVE-2024-57876

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Patches & Fixes for CVE-2024-57876 (4)

Same Patch Batch · Linux · 2025-01-11 · 67 CVEs total

CVE-2024-57843 9.8 CRITICAL virtio-net: fix overflow inside virtnet_rq_alloc
CVE-2024-47408 9.8 CRITICAL net/smc: check smcd_v2_ext_offset when receiving proposal msg
CVE-2024-49568 9.8 CRITICAL net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg
CVE-2024-57793 9.3 CRITICAL virt: tdx-guest: Just leak decrypted memory on unrecoverable errors
CVE-2024-49571 9.1 CRITICAL net/smc: check iparea_offset and ipv6_prefixes_cnt when receiving proposal msg
CVE-2024-55639 8.4 HIGH net: renesas: rswitch: avoid use-after-put for a device tree node
CVE-2024-41149 7.8 HIGH block: avoid to reuse `hctx` not removed from cpuhp callback list
CVE-2024-52319 7.8 HIGH mm: use aligned address in clear_gigantic_page()
CVE-2024-57849 7.8 HIGH s390/cpum_sf: Handle CPU hotplug remove during sampling
CVE-2024-57850 7.8 HIGH jffs2: Prevent rtime decompress memory corruption
CVE-2024-51729 7.8 HIGH mm: use aligned address in copy_user_gigantic_page()
CVE-2024-57875 7.8 HIGH block: RCU protect disk->conv_zones_bitmap
CVE-2024-47794 7.8 HIGH bpf: Prevent tailcall infinite loop caused by freplace
CVE-2024-49569 7.5 HIGH nvme-rdma: unquiesce admin_q before destroy it
CVE-2024-57791 7.5 HIGH net/smc: check return value of sock_recvmsg when draining clc data
CVE-2024-56788 7.5 HIGH net: ethernet: oa_tc6: fix tx skb race condition between reference pointers
CVE-2024-57792 7.3 HIGH power: supply: gpio-charger: Fix set charge current limits
CVE-2024-57804 7.3 HIGH scsi: mpi3mr: Fix corrupt config pages PHY state is switched in sysfs
CVE-2024-56368 7.1 HIGH ring-buffer: Fix overflow in __rb_map_vma
CVE-2024-49573 7.0 HIGH sched/fair: Fix NEXT_BUDDY

Showing top 20 of 67 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-57876

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