linux-kernel - [PATCH] [kexec]: arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20211208170910.85364-1-nramas@linux.microsoft.com>
Date:   Wed,  8 Dec 2021 09:09:10 -0800
From:   Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>
To:     dan.carpenter@...cle.com, robh@...nel.org
Cc:     kbuild@...ts.01.org, lkp@...el.com, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, bauerman@...ux.ibm.com
Subject: [PATCH] [kexec]: arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'

Return code is not set to an error code in load_other_segments() when
of_kexec_alloc_and_setup_fdt() call returns a NULL dtb. This results
in status success (return code set to 0) being returned from
load_other_segments().

Set return code to -ENOMEM if of_kexec_alloc_and_setup_fdt() returns
NULL dtb.

Signed-off-by: Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>
Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
---
Patch created in dt/next branch in git repo
https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git

 arch/arm64/kernel/machine_kexec_file.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kernel/machine_kexec_file.c b/arch/arm64/kernel/machine_kexec_file.c
index 63634b4d72c1..04d072885e64 100644
--- a/arch/arm64/kernel/machine_kexec_file.c
+++ b/arch/arm64/kernel/machine_kexec_file.c
@@ -149,6 +149,7 @@ int load_other_segments(struct kimage *image,
 					   initrd_len, cmdline, 0);
 	if (!dtb) {
 		pr_err("Preparing for new dtb failed\n");
+		ret = -ENOMEM;
 		goto out_err;
 	}
 
-- 
2.25.1