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Test your applicationsUpgrade RHEL:7
kernel-rt-debug
to version 0:3.10.0-957.rt56.910.el7 or higher.
This issue was patched in RHSA-2018:3096
.
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug
package and not the kernel-rt-debug
package as distributed by RHEL
.
See How to fix?
for RHEL:7
relevant fixed versions and status.
Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.