AZL-86187
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-86187.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-86187
- Upstream
- Published
- 2026-05-08T14:16:36Z
- Modified
- 2026-08-28T17:47:36.780820749Z
- Summary
- CVE-2026-43294 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm: renesas: rz-du: mipi_dsi: fix kernel panic when rebooting for some panels
Since commit 56de5e305d4b ("clk: renesas: r9a07g044: Add MSTOP for RZ/G2L") we may get the following kernel panic, for some panels, when rebooting:
systemd-shutdown[1]: Rebooting. Call trace: ... doserror+0x28/0x68 el1h64errorhandler+0x34/0x50 el1h64error+0x6c/0x70 rzg2lmipidsihosttransfer+0x114/0x458 (P) mipidsidevicetransfer+0x44/0x58 mipidsidcssetdisplayoffmulti+0x9c/0xc4 ili9881cunprepare+0x38/0x88 drmpanelunprepare+0xbc/0x108
This happens for panels that need to send MIPI-DSI commands in their unprepare() callback. Since the MIPI-DSI interface is stopped at that point, rzg2lmipidsihosttransfer() triggers the kernel panic.
Fix by moving rzg2lmipidsistop() to new callback function rzg2lmipidsiatomicpostdisable().
With this change we now have the correct power-down/stop sequence:
systemd-shutdown[1]: Rebooting. rzg2l-mipi-dsi 10850000.dsi: rzg2lmipidsiatomicdisable(): entry ili9881c-dsi 10850000.dsi.0: ili9881cunprepare(): entry rzg2l-mipi-dsi 10850000.dsi: rzg2lmipidsiatomicpostdisable(): entry reboot: Restarting system
- References