CVE-2024-26874 — NULL Pointer Dereference in Linux
Severity
4.7MEDIUMNVD
OSV7.0OSV6.5OSV5.5
EPSS
0.0%
top 98.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedApr 17
Latest updateJul 26
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/mediatek: Fix a null pointer crash in mtk_drm_crtc_finish_page_flip
It's possible that mtk_crtc->event is NULL in
mtk_drm_crtc_finish_page_flip().
pending_needs_vblank value is set by mtk_crtc->event, but in
mtk_drm_crtc_atomic_flush(), it's is not guarded by the same
lock in mtk_drm_finish_page_flip(), thus a race condition happens.
Consider the following case:
CPU1 CPU2
step 1:
mtk_drm_crtc_atomic_begin()
mtk_crtc->ev…
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.0 | Impact: 3.6
Affected Packages5 packages
▶CVEListV5linux/linux119f5173628aa7a0c3cf9db83460d40709e8241d — accdac6b71d5a2b84040c3d2234f53a60edc398e+9
Also affects: Debian Linux 10.0
Patches
🔴Vulnerability Details
22📋Vendor Advisories
22💬Community
1Bugzilla▶
CVE-2024-26874 kernel: drm/mediatek: Fix a null pointer crash in mtk_drm_crtc_finish_page_flip↗2024-04-17