CVE-2026-43294: Linux kernel · drm: renesas: rz-du: mipi_dsi: fix kernel panic when rebooting for some panels
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 8 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde@7.0.0-1008.8?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 25.10linuxpkg:deb/ubuntu/linux?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available that corrects the power-down sequence in the driver by moving the stop function to a later callback. Users should update to a patched kernel version that includes this fix to prevent kernel panics on reboot with affected panels.
Description
A vulnerability in the Linux kernel's drm renesas rz-du mipi_dsi driver caused a kernel panic during system reboot for certain display panels. The issue occurred because the MIPI-DSI interface was stopped prematurely, leading to a panic when panels sent commands in their unprepare() callback. The fix involved adjusting the power-down sequence by moving the stop function to a later callback, preventing the panic.
References
- ubuntu.com/security/CVE-2026-43294 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-43294 (opens in a new tab)
- git.kernel.org/linus/64aa8b3a60a825134f7d866adf05c024bbe0c24c (opens in a new tab)
- git.kernel.org/stable/c/41cda667ffc5074c56279c632b0c20024da6ecdd (opens in a new tab)
- git.kernel.org/stable/c/64aa8b3a60a825134f7d866adf05c024bbe0c24c (opens in a new tab)
- git.kernel.org/stable/c/79f42487ed60d0d5ffce97c3bb98f80c3d17735a (opens in a new tab)