References to Advisories, Solutions, and Tools

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Change History

https://git.kernel.org/stable/c/5fcb6fce74ffa614d964667110cf1a516c48c6d9

https://git.kernel.org/stable/c/6d67b2a73b8e3a079c355bab3c1aef7d85a044b8

https://git.kernel.org/stable/c/a4aeaa06d45e90f9b279f0b09de84bd00006e733

In the Linux kernel, the following vulnerability has been resolved:

mm: khugepaged: skip huge page collapse for special files

The read-only THP for filesystems will collapse THP for files opened
readonly and mapped with VM_EXEC.  The intended usecase is to avoid TLB
misses for large text segments.  But it doesn't restrict the file types
so a THP could be collapsed for a non-regular file, for example, block
device, if it is opened readonly and mapped with EXEC permission.  This
may cause bugs, 

kernel.org https://git.kernel.org/stable/c/5fcb6fce74ffa614d964667110cf1a516c48c6d9 [No types assigned]

kernel.org https://git.kernel.org/stable/c/6d67b2a73b8e3a079c355bab3c1aef7d85a044b8 [No types assigned]

kernel.org https://git.kernel.org/stable/c/a4aeaa06d45e90f9b279f0b09de84bd00006e733 [No types assigned]