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An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call aka CID-246c320a8cfe.

🗓️ 03 Dec 2020 08:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

A race in Linux kernel mm/mmap.c before 5.7.11 lets expand_downwards race with frees during munmap.

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03 Dec 2020 08:00Current
8.3High risk
Vulners AI Score8.3
CVSS 26.9
CVSS 3.17
EPSS0.00079
2