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CVE-2024-35800

efi: fix panic in kdump kernel

EPSS 0.2%
In the Linux kernel, the following vulnerability has been resolved: efi: fix panic in kdump kernel Check if get_next_variable() is actually valid pointer before calling it. In kdump kernel this method is set to NULL that causes panic during the kexec-ed kernel boot. Tested with QEMU and OVMF firmware.
Affected products
Linux · Linux

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References
https://git.kernel.org/stable/c/090d2b4515ade379cd592fbc8931344945978210https://git.kernel.org/stable/c/62b71cd73d41ddac6b1760402bbe8c4932e23531https://git.kernel.org/stable/c/7784135f134c13af17d9ffb39a57db8500bc60ffhttps://git.kernel.org/stable/c/9114ba9987506bcfbb454f6e68558d68cb1abbdehttps://git.kernel.org/stable/c/b9d103aca85f082a343b222493f3cab1219aaaf4