Bug 2311711 (CVE-2024-45014)

Summary: CVE-2024-45014 kernel: s390/boot: Avoid possible physmem_info segment corruption
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Bug Depends On: 2311744    
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Description OSIDB Bzimport 2024-09-11 16:20:52 UTC 
In the Linux kernel, the following vulnerability has been resolved:

s390/boot: Avoid possible physmem_info segment corruption

When physical memory for the kernel image is allocated it does not
consider extra memory required for offsetting the image start to
match it with the lower 20 bits of KASLR virtual base address. That
might lead to kernel access beyond its memory range.
Comment 1 Michal Findra 2024-09-11 17:00:21 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024091107-CVE-2024-45014-2925@gregkh/T