In the Linux kernel 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. CREATE(Triage):(User=admin) [CVE-2020-11884|https://nvd.nist.gov/vuln/detail/CVE-2020-11884]
