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x86 fixes stabilize AMD topology; Omarchy 4.0.3 ships security work
By RepoJournal · Filed · About Linux
Linux 7.3-rc3 pulls x86 fixes for AMD hardware issues, while Omarchy releases v4.0.3 with Hermes and Openclaw integration plus security hardening.
Linux 7.3-rc3 merges x86 urgent fixes addressing older AMD device topology and machine check issues that are "affecting real users" [1]. The pull includes a fix for a potential NULL pointer dereference in amd_smn_read/write() when amd_smn_init() fails, leaving amd_roots NULL and __amd_smn_rw() accessing uninitialized memory [2]. Another patch corrects inverted interrupt enablement in mce_amd_handle_storm() which was enabling thresholding interrupts during a storm when it should disable them [3]. Note the pull arrived later than usual due to a "late breaking issue with one of the patches which is now temporarily kicked out" [1].
Omarchy v4.0.3 ships, bringing "amazing out-of-the-box integration for both Hermes and Openclaw" plus additional security fixes validated by the Omarchy Security team [4]. This release follows the 4.0.2 security work that removed Omarchy's unrestricted sudo grant; the latest version adds a follow-up fix for passwordless sudo persistence, with reporter credit now recorded [5]. An earlier commit credits Chainfire for privately reporting the passwordless asdcontrol watchdog reboot and notes the fix landing in 4.0.2 [6]. Upgrading via Update > Omarchy is recommended.
Omarchy also adds a virtual camera relay for the Elgato Cam Link 4K. The fix hides the raw capture node and re-exposes it through v4l2-relayd as a 1280x720 virtual camera, solving the stretched output when web meeting apps request a standard-definition 640x480 stream [7][8].
Action items
- → Upgrade Omarchy to v4.0.3 using Update > Omarchy omacom/omarchy [immediate]
- → Review AMD node code for NULL dereference fix availability in your kernel torvalds/linux [monitor]
References
- [1] Merge tag 'x86_urgent_for_7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip ↗ torvalds/linux
- [2] x86/amd_node: Fix potential NULL pointer dereference ↗ torvalds/linux
- [3] x86/MCE/AMD: Fix inverted interrupt enablement during storm handling ↗ torvalds/linux
- [4] v4.0.3 ↗ basecamp/omarchy
- [5] Credit _SiCk // afflicted.sh for sudo expiry validation ↗ basecamp/omarchy
- [6] Credit @Chainfire for the asdcontrol security report ↗ basecamp/omarchy
- [7] Relay the Elgato Cam Link 4K as a 16:9 virtual camera (#10809) ↗ basecamp/omarchy
- [8] Relay the Elgato Cam Link 4K as a 16:9 virtual camera ↗ basecamp/omarchy