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Red Hat OpenShift: CVE-2019-19768: kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c

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Red Hat OpenShift: CVE-2019-19768: kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
12/12/2019
Created
12/30/2020
Added
12/29/2020
Modified
12/29/2020

Description

In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).

Solution(s)

  • linuxrpm-upgrade-redhat-coreos

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