Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-80542— drm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank()

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.

在 Linux 内核中，以下漏洞已修复： drm/amd/display：修复 amdgpu_dm_crtc_set_vblank() 中的空指针解引用 在流（stream）尚未附加到 CRTC 之前，就解引用了 ，这发生在通过 启用或查询垂直同步（vblank）时。 缺陷详情： 类型：内核空指针解引用，地址：0x0000000000000008 指令指针（RIP）： 调用栈（Call Trace）： 复现方式： 在启用 WSI 测试的 RADV 上运行 VKCTS 可复现此问题。 修复方法： 对启用路径增加 非空

AI Predicted 5.5 Difficulty: Moderate EPSS 0.17% · P6

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 34d66bc7ff10e146a4cec76cf286979740a10954< 5045fb4c70bfde36a05e0f41cf35ddfb6d85d3af affected
34d66bc7ff10e146a4cec76cf286979740a10954< 4a6bc92fac30070511d66bcce4ed9b7dac983180 affected
34d66bc7ff10e146a4cec76cf286979740a10954< f2a1c4c6fe0a6fcde02e59dde546dba28d283635 affected
6.18 affected
< 6.18 unaffected
6.18.46≤ 6.18.* unaffected
7.1.10≤ 7.1.* unaffected
7.2≤ * unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-80542

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
drm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank() amdgpu_dm_crtc_set_vblank() dereferences acrtc_state->stream when vblank is enabled/queried from DRM_IOCTL_MODE_CRTC_GET_SEQUENCE before a stream is attached to it. BUG: kernel NULL pointer dereference, address: 0000000000000008 RIP: amdgpu_dm_crtc_set_vblank+0x6b/0x4d0 [amdgpu] Call Trace: drm_vblank_enable drm_vblank_get drm_crtc_get_sequence_ioctl drm_ioctl_kernel drm_ioctl Reproduced by running VKCTS with WSI tests enabled on RADV. Guard the enable path on acrtc_state->stream being non-NULL, matching the existing checks in this function. (cherry picked from commit 7b1b31bf6942e6f43509b48da23f8e27269aac39)
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 34d66bc7ff10e146a4cec76cf286979740a10954 ~ 5045fb4c70bfde36a05e0f41cf35ddfb6d85d3af -
Linux Linux 6.18 -

II. Public POCs for CVE-2026-80542

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-80542

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-80542 (3)

Same Patch Batch · Linux · 2026-08-26 · 92 CVEs total

CVE-2026-80557 9.8 CRITICAL libceph: fix OOB read in decode_watchers() via missing bounds check
CVE-2026-80589 9.8 CRITICAL block: stop the timeout timer when releasing a never added disk
CVE-2026-74737 9.8 CRITICAL net: ethernet: ti: am65-cpsw-nuss: Fix port_id extraction from SRC TAG
CVE-2026-80558 9.8 CRITICAL libceph: Avoid using invalid osd indices from primary_temp
CVE-2026-80587 9.8 CRITICAL mptcp: avoid combining some incoming suboptions
CVE-2026-80528 9.8 CRITICAL ceph: avoid fs reclaim while using current->journal_info
CVE-2026-80561 9.8 CRITICAL libceph: fix multiple unsafe decodes in decode_locker()
CVE-2026-74743 9.8 CRITICAL macvlan: inherit needed_headroom and needed_tailroom from lowerdev
CVE-2026-74744 9.8 CRITICAL ipvlan: inherit needed_headroom and needed_tailroom from phy_dev
CVE-2026-80519 9.8 CRITICAL ovpn: finish crypto callback cleanup before peer release
CVE-2026-74746 9.8 CRITICAL netfilter: flowtable: publish GC-visible tuple last
CVE-2026-80586 9.8 CRITICAL mptcp: options: reset DSS fields in case of unexpected size
CVE-2026-74752 9.8 CRITICAL sctp: validate cookie AUTH state before use
CVE-2026-80585 9.4 CRITICAL mptcp: fastopen: only mark MPTFO subflows with SYN data
CVE-2026-74751 9.4 CRITICAL riscv: lib: Fix ZBB strnlen reading past count boundary
CVE-2026-80551 9.3 CRITICAL s390/vfio_ccw: Ensure first IDAW remains constant
CVE-2026-80554 9.3 CRITICAL s390/vfio_ccw: Limit the number of channel program segments
CVE-2026-80552 8.8 HIGH s390/vfio_ccw: Ensure index for read/write regions are within range
CVE-2026-80548 8.8 HIGH s390/vfio_ccw: Selectively expand io_mutex
CVE-2026-80547 8.8 HIGH s390/vfio_ccw: Implement a crw lock

Showing top 20 of 92 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-80542

No comments yet

Leave a comment