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CVE-2024-26662— drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'

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dcn21_set_backlight_level（）中的panel_cntl可能为空。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 474ac4a875ca6fea3fc5183d3ad22ef7523dca53< 2e150ccea13129eb048679114808eb9770443e4d affected
474ac4a875ca6fea3fc5183d3ad22ef7523dca53< 0c863cab0e9173f8b6c7bc328bee3b8625f131b5 affected
474ac4a875ca6fea3fc5183d3ad22ef7523dca53< e96fddb32931d007db12b1fce9b5e8e4c080401b affected
5.9 affected
< 5.9 unaffected
6.6.17≤ 6.6.* unaffected
6.7.5≤ 6.7.* unaffected
6.8≤ * unaffected
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I. Basic Information for CVE-2024-26662

Vulnerability Information
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Vulnerability Title
drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()' 'panel_cntl' structure used to control the display panel could be null, dereferencing it could lead to a null pointer access. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn21/dcn21_hwseq.c:269 dcn21_set_backlight_level() error: we previously assumed 'panel_cntl' could be null (see line 250)
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dcn21_set_backlight_level（）中的panel_cntl可能为空。
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 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 ~ 2e150ccea13129eb048679114808eb9770443e4d -
Linux Linux 5.9 -

II. Public POCs for CVE-2024-26662

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III. Intelligence Information for CVE-2024-26662

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Other References for CVE-2024-26662 (3)

Same Patch Batch · Linux · 2024-04-02 · 35 CVEs total

CVE-2024-26665 9.1 CRITICAL tunnels: fix out of bounds access when building IPv6 PMTU error
CVE-2023-52636 8.2 HIGH libceph: just wait for more data to be available on the socket
CVE-2024-26659 7.8 HIGH xhci: handle isoc Babble and Buffer Overrun events properly
CVE-2024-26656 7.8 HIGH drm/amdgpu: fix use-after-free bug
CVE-2024-26663 7.8 HIGH tipc: Check the bearer type before calling tipc_udp_nl_bearer_add()
CVE-2024-26664 7.8 HIGH hwmon: (coretemp) Fix out-of-bounds memory access
CVE-2024-26666 7.1 HIGH wifi: mac80211: fix RCU use in TDLS fast-xmit
CVE-2024-26660 7.0 HIGH drm/amd/display: Implement bounds check for stream encoder creation in DCN301
CVE-2024-26673 netfilter: nft_ct: sanitize layer 3 and 4 protocol number in custom expectations
CVE-2023-52634 drm/amd/display: Fix disable_otg_wa logic
CVE-2024-26674 x86/lib: Revert to _ASM_EXTABLE_UA() for {get,put}_user() fixups
CVE-2024-26675 ppp_async: limit MRU to 64K
CVE-2024-26676 af_unix: Call kfree_skb() for dead unix_(sk)->oob_skb in GC.
CVE-2024-26677 rxrpc: Fix delayed ACKs to not set the reference serial number
CVE-2024-26678 x86/efistub: Use 1:1 file:memory mapping for PE/COFF .compat section
CVE-2024-26679 inet: read sk->sk_family once in inet_recv_error()
CVE-2024-26680 net: atlantic: Fix DMA mapping for PTP hwts ring
CVE-2024-26681 netdevsim: avoid potential loop in nsim_dev_trap_report_work()
CVE-2024-26682 wifi: mac80211: improve CSA/ECSA connection refusal
CVE-2024-26683 wifi: cfg80211: detect stuck ECSA element in probe resp

Showing top 20 of 35 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26662

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