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Change History

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.

kernel.org https://git.kernel.org/stable/c/090d2b4515ade379cd592fbc8931344945978210 [No types assigned]

kernel.org https://git.kernel.org/stable/c/62b71cd73d41ddac6b1760402bbe8c4932e23531 [No types assigned]

kernel.org https://git.kernel.org/stable/c/7784135f134c13af17d9ffb39a57db8500bc60ff [No types assigned]

kernel.org https://git.kernel.org/stable/c/9114ba9987506bcfbb454f6e68558d68cb1abbde [No types assigned]

kernel.org https://git.kernel.org/stable/c/b9d103aca85f082a343b222493f3cab1219aaaf4 [No types assigned]