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In the Linux kernel 4.19 through 5.6.7 on the s390 platform code execution may occur because of a race condition as demonstrated by code in enable_sacf_uaccess in arch/s390/lib/uaccess.c that fails to protect against a concurrent page table upgrade aka CID-3f777e19d171. A crash could also occur.

🗓️ 10 Nov 2020 08:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

Linux kernel 4.19–5.6.7 on s390 has a race in enable_sacf_uaccess that may enable code execution or crash during a concurrent page table upgrade (CID-3f777e19d171).

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10 Nov 2020 08:00Current
8.4High risk
Vulners AI Score8.4
CVSS 26.9
CVSS 3.17
EPSS0.00397
2