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CVE-2024-42121— drm/amd/display: Check index msg_id before read or write

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/amd/display模块中在使用msg_id作为数组索引时，没有检查其有效性。

AI Predicted 5.5 Difficulty: Hard EPSS 0.26% · P17

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c< b5b8837d066cc182ff69fb5629ad32ade5484567 affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c< fbb0701af9734cff13917a4b98b5ee9da2fde48d affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c< ae91ffbc8b8d942e3e7f188728cad557b7ed5ee4 affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c< 9933eca6ada0cd612e19522e7a319bcef464c0eb affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c< a31ea49dc8064a557565725cf045944307476a6e affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c< 59d99deb330af206a4541db0c4da8f73880fba03 affected
4.15 affected
< 4.15 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-42121

Vulnerability Information
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Vulnerability Title
drm/amd/display: Check index msg_id before read or write
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check index msg_id before read or write [WHAT] msg_id is used as an array index and it cannot be a negative value, and therefore cannot be equal to MOD_HDCP_MESSAGE_ID_INVALID (-1). [HOW] Check whether msg_id is valid before reading and setting. This fixes 4 OVERRUN issues reported by Coverity.
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/amd/display模块中在使用msg_id作为数组索引时，没有检查其有效性。
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 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c ~ b5b8837d066cc182ff69fb5629ad32ade5484567 -
Linux Linux 4.15 -

II. Public POCs for CVE-2024-42121

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III. Intelligence Information for CVE-2024-42121

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Other References for CVE-2024-42121 (6)

Same Patch Batch · Linux · 2024-07-30 · 70 CVEs total

CVE-2024-42108 9.8 CRITICAL net: rswitch: Avoid use-after-free in rswitch_poll()
CVE-2024-42225 8.3 HIGH wifi: mt76: replace skb_put with skb_put_zero
CVE-2024-42120 7.8 HIGH drm/amd/display: Check pipe offset before setting vblank
CVE-2024-42115 7.8 HIGH jffs2: Fix potential illegal address access in jffs2_free_inode
CVE-2024-42112 7.8 HIGH net: txgbe: free isb resources at the right time
CVE-2024-42111 7.8 HIGH btrfs: always do the basic checks for btrfs_qgroup_inherit structure
CVE-2024-42117 7.8 HIGH drm/amd/display: ASSERT when failing to find index by plane/stream id
CVE-2024-42109 7.8 HIGH netfilter: nf_tables: unconditionally flush pending work before notifier
CVE-2024-42162 7.8 HIGH gve: Account for stopped queues when reading NIC stats
CVE-2024-42105 7.8 HIGH nilfs2: fix inode number range checks
CVE-2024-42104 7.8 HIGH nilfs2: add missing check for inode numbers on directory entries
CVE-2024-42103 7.8 HIGH btrfs: fix adding block group to a reclaim list and the unused list during reclaim
CVE-2024-42099 7.8 HIGH s390/dasd: Fix invalid dereferencing of indirect CCW data pointer
CVE-2024-42132 7.6 HIGH bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX
CVE-2024-42133 7.6 HIGH Bluetooth: Ignore too large handle values in BIG
CVE-2024-42152 7.5 HIGH nvmet: fix a possible leak when destroy a ctrl during qp establishment
CVE-2024-42110 7.5 HIGH net: ntb_netdev: Move ntb_netdev_rx_handler() to call netif_rx() from __netif_rx()
CVE-2024-42145 7.5 HIGH IB/core: Implement a limit on UMAD receive List
CVE-2024-42123 7.0 HIGH drm/amdgpu: fix double free err_addr pointer warnings
CVE-2024-42224 7.0 HIGH net: dsa: mv88e6xxx: Correct check for empty list

Showing top 20 of 70 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-42121

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