Resolves: bz1892558
Upstream: Fedora
Conflict: None
commit 18131894b6
Author: Pingfan Liu <piliu@redhat.com>
Date: Thu Feb 4 09:45:36 2021 +0800
kdump-lib.sh: introduce functions to return recommened mem size
There is requirement to decide the recommended memory size for the current
system. And the algorithm is based on /proc/iomem, so it can align with the
algorithm used by reserve_crashkernel() in kernel.
Signed-off-by: Pingfan Liu <piliu@redhat.com>
Acked-by: Kairui Song <kasong@redhat.com>
Signed-off-by: Pingfan Liu <piliu@redhat.com>
Related: rhbz#1938165
Upstream: fedora
Conflict: none
commit 00785873ef
Author: Tao Liu <ltao@redhat.com>
Date: Fri Mar 19 18:07:51 2021 +0800
Fix incorrect vmcore permissions when dumped through ssh
Previously when dumping vmcore to a remote machine through ssh,
the files are created remotely and file permissions are taken
from the default umask value, which making the files accessible to
anyone on the remote machine.
This patch fixed the security issue by setting a customized umask value
before the file creation on the remote machine.
Signed-off-by: Tao Liu <ltao@redhat.com>
Acked-by: Kairui Song <kasong@redhat.com>
Signed-off-by: Tao Liu <ltao@redhat.com>
Resolves: rhbz#1938165
Upstream: fedora
Conflict: none
commit 91c802ff52
Author: Tao Liu <ltao@redhat.com>
Date: Thu Mar 18 16:52:46 2021 +0800
Fix incorrect permissions on kdump dmesg file
Also known as CVE-2021-20269. The kdump dmesg log files(kexec-dmesg.log,
vmcore-dmesg.txt) are generated by shell redirection, which take the
default umask value, making the files readable for group and others.
This patch chmod these files, making them only accessible to owner.
Signed-off-by: Tao Liu <ltao@redhat.com>
Acked-by: Kairui Song <kasong@redhat.com>
Signed-off-by: Tao Liu <ltao@redhat.com>
