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Test your applicationsUpgrade RHEL:7
kernel-rt-debug-devel
to version 0:3.10.0-693.rt56.617.el7 or higher.
This issue was patched in RHSA-2017:2077
.
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-devel
package and not the kernel-rt-debug-devel
package as distributed by RHEL
.
See How to fix?
for RHEL:7
relevant fixed versions and status.
Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated.