Hotfix CVE-2026-31431 - #27
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April 30, 2026 08:56
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I'm hotfixing this in surface-control because the kernel builds haven't been working for weeks. This hotfixes an escalation-to-root kernel vulnerability. Apparently Fedora has it built into the kernel, so this modprobe hotfix won't work. A GRUB `initcall_blacklist=algif_aead_init` is needed. Fixes: linux-surface/linux-surface#2090
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I need help for the Fedora version. https://www.reddit.com/r/sysadmin/comments/1szajkx/copy_fail_cve202631431_is_a_trivially_exploitable/oj0m0bi/ says it's built into the kernel and we should use initcall_blacklist=algif_aead_init in GRUB. But I don't know whether Fedora has a drop-in file for GRUB. |
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Superseded. See parent issue |
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I'm hotfixing this in surface-control because the kernel builds haven't been working for weeks.
This hotfixes an escalation-to-root kernel vulnerability.
Apparently Fedora has it built into the kernel, so this modprobe hotfix won't work. A GRUB initcall_blacklist=algif_aead_init is needed.
Fixes: linux-surface/linux-surface#2090