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Powerpc null pointer check to scom_debug_init_one()

Mamatha Inamdar requested to merge mainamdar/centos-stream-9:RHEL-37052 into main

Description: Powerpc null pointer check to scom_debug_init_one()

JIRA: https://issues.redhat.com/browse/RHEL-37052

CVE: CVE-2023-52690

Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=61390494

Tested: Verified Brew build test kernel RPMs

Signed-off-by: Mamatha Inamdar minamdar@redhat.com

commit 9a260f2dd827bbc82cc60eb4f4d8c22707d80742 Author: Kunwu Chan chentao@kylinos.cn Date: Fri Dec 8 16:59:37 2023 +0800

powerpc/powernv: Add a null pointer check to scom_debug_init_one()

kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.
Add a null pointer check, and release 'ent' to avoid memory leaks.

Fixes: bfd2f0d49aef ("powerpc/powernv: Get rid of old scom_controller abstraction")
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231208085937.107210-1-chentao@kylinos.cn

Signed-off-by: Mamatha Inamdar minamdar@redhat.com

Edited by Mamatha Inamdar

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