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cve/2021/CVE-2021-47567.md
0xMarcio cb00e1339f Update CVE list 2025-09-29 21:09
2025-09-29 21:09:30 +02:00

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CVE-2021-47567

Description

In the Linux kernel, the following vulnerability has been resolved:powerpc/32: Fix hardlockup on vmap stack overflowSince the commit c118c7303ad5 ("powerpc/32: Fix vmap stack - Do notactivate MMU before reading task struct") a vmap stack overflowresults in a hard lockup. This is because emergency_ctx is stilladdressed with its virtual address allthough data MMU is not activeanymore at that time.Fix it by using a physical address instead.

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