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IOMMU AND SMB3 SECURITY FIXES LAND IN RC2 AS DRM RACE CONDITION PATCHED
By RepoJournal · Filed · About Linux
Critical security fixes for AMD-Vi and SMB3 hit the kernel overnight while DRM's handle-change ioctl finally gets its use-after-free sealed.
The IOMMU subsystem [1] pulled in a high-priority security fix for AMD's SEV-SNP enabled systems alongside a cache-flushing bug that was breaking non-x86 platforms — both land in RC2 and both need to ship before 7.1 final. The SMB client stack [2] got hammered with fixes: two ACL validation holes, out-of-bounds reads in symlink handling, and a critical Kerberos-AES-256 path that was failing silently in production environments. On the graphics side, Dave Airlie's DRM pull [4] is dominated by a nasty race condition in the handle-change ioctl [3] where concurrent gem_close operations could trigger use-after-free — the fix mirrors gem_close's own safety dance. SPI drivers also took their lumps: Microchip QSPI and Freescale i.MX had production-grade issues that are now closed [5]. Over in the omarchy desktop layer, packaged Dell XPS haptic support [6] went out of tree, reminders got a speed boost [7], and VAAPI GL crashes on some Chromium builds are finally gone [8].
Action items
- → Test AMD-Vi and SMB3 fixes immediately if running SEV-SNP or Kerberos-AES-256 [ref:1][ref:2] torvalds/linux [immediate]
- → Backport DRM handle-change race fix to 7.0 LTS before next point release [ref:3] torvalds/linux [immediate]
- → Verify SPI device stability on Microchip QSPI and i.MX systems [ref:5] torvalds/linux [plan]
- → Update Dell XPS systems to new packaged haptics and remove legacy in-repo service [ref:6] basecamp/omarchy [plan]
References
- [1] Merge tag 'iommu-fixes-v7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux torvalds/linux
- [2] Merge tag 'v7.1-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 torvalds/linux
- [3] drm: Set old handle to NULL before prime swap in change_handle torvalds/linux
- [4] Merge tag 'drm-fixes-2026-05-08-1' of https://gitlab.freedesktop.org/drm/kernel torvalds/linux
- [5] Merge tag 'spi-fix-v7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi torvalds/linux
- [6] Use packaged Dell XPS touchpad haptics ↗ basecamp/omarchy
- [7] Reminders ↗ basecamp/omarchy
- [8] Remove VAAPI GL video feature flags from Chromium-based browser configs to prevent crashing on some machines basecamp/omarchy
FAQ
- What changed in Linux on May 9, 2026?
- Critical security fixes for AMD-Vi and SMB3 hit the kernel overnight while DRM's handle-change ioctl finally gets its use-after-free sealed.
- What should Linux teams do about it?
- Test AMD-Vi and SMB3 fixes immediately if running SEV-SNP or Kerberos-AES-256 [ref:1][ref:2] • Backport DRM handle-change race fix to 7.0 LTS before next point release [ref:3] • Verify SPI device stability on Microchip QSPI and i.MX systems [ref:5]
- Which Linux repositories shipped on May 9, 2026?
- torvalds/linux, basecamp/omarchy