9 Months Later, Microsoft Finally Fixes Linux Dual-Booting Bug (itsfoss.com)
(Monday May 19, 2025 @03:16AM (EditorDavid)
from the plays-well-with-others dept.)
Last August a Microsoft security update broke dual-booting Windows 11 and Linux systems, [1]remembers the blog Neowin . Distros like Debian, Ubuntu, Linux Mint, Zorin OS, and Puppy Linux were all affected, and "a couple of days later, Microsoft provided a [2]slightly lengthy workaround that involved tweaking around with policies and the Registry in order to fix the problem."
The update "was meant to [3]address a GRUB bootloader vulnerability that allowed malicious actors to bypass Secure Boot's safety mechanisms," [4]notes the It's FOSS blog . "Luckily, there's now a proper fix for this, as Microsoft has [5]quietly released a new patch on May 13, 2025, addressing the issue nine months after it was first reported... Meanwhile, many dual-boot users were left with borked setups, having to use workarounds or disable Secure Boot altogether."
[1] https://www.neowin.net/news/linux-windows-11-dual-boot-to-finally-play-well-as-microsoft-fixes-nine-month-old-bug/
[2] https://www.neowin.net/news/microsoft-shares-more-info-on-fixing-broken-dual-boot-after-august-patch-tuesday-updates/
[3] https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2022-2601
[4] https://news.itsfoss.com/microsoft-fixes-linux-dual-boot/
[5] https://learn.microsoft.com/en-us/windows/release-health/status-windows-server-2022
The update "was meant to [3]address a GRUB bootloader vulnerability that allowed malicious actors to bypass Secure Boot's safety mechanisms," [4]notes the It's FOSS blog . "Luckily, there's now a proper fix for this, as Microsoft has [5]quietly released a new patch on May 13, 2025, addressing the issue nine months after it was first reported... Meanwhile, many dual-boot users were left with borked setups, having to use workarounds or disable Secure Boot altogether."
[1] https://www.neowin.net/news/linux-windows-11-dual-boot-to-finally-play-well-as-microsoft-fixes-nine-month-old-bug/
[2] https://www.neowin.net/news/microsoft-shares-more-info-on-fixing-broken-dual-boot-after-august-patch-tuesday-updates/
[3] https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2022-2601
[4] https://news.itsfoss.com/microsoft-fixes-linux-dual-boot/
[5] https://learn.microsoft.com/en-us/windows/release-health/status-windows-server-2022