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authorYunfeng Ye <yeyunfeng@huawei.com>2020-05-07 12:23:36 +0300
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2020-05-07 21:18:27 +0300
commit8842604446d1f005abcbf8c63c12eabdb5695094 (patch)
tree90c8adbc1fa5d018bf2a99aebb4ad941856c22d8 /tools/bootconfig/main.c
parent192b7993b3ff92b62b687e940e5e88fa0218d764 (diff)
downloadlinux-8842604446d1f005abcbf8c63c12eabdb5695094.tar.xz
tools/bootconfig: Fix resource leak in apply_xbc()
Fix the @data and @fd allocations that are leaked in the error path of apply_xbc(). Link: http://lkml.kernel.org/r/583a49c9-c27a-931d-e6c2-6f63a4b18bea@huawei.com Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools/bootconfig/main.c')
-rw-r--r--tools/bootconfig/main.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/tools/bootconfig/main.c b/tools/bootconfig/main.c
index 16b9a420e6fd..001076c51712 100644
--- a/tools/bootconfig/main.c
+++ b/tools/bootconfig/main.c
@@ -314,6 +314,7 @@ int apply_xbc(const char *path, const char *xbc_path)
ret = delete_xbc(path);
if (ret < 0) {
pr_err("Failed to delete previous boot config: %d\n", ret);
+ free(data);
return ret;
}
@@ -321,24 +322,26 @@ int apply_xbc(const char *path, const char *xbc_path)
fd = open(path, O_RDWR | O_APPEND);
if (fd < 0) {
pr_err("Failed to open %s: %d\n", path, fd);
+ free(data);
return fd;
}
/* TODO: Ensure the @path is initramfs/initrd image */
ret = write(fd, data, size + 8);
if (ret < 0) {
pr_err("Failed to apply a boot config: %d\n", ret);
- return ret;
+ goto out;
}
/* Write a magic word of the bootconfig */
ret = write(fd, BOOTCONFIG_MAGIC, BOOTCONFIG_MAGIC_LEN);
if (ret < 0) {
pr_err("Failed to apply a boot config magic: %d\n", ret);
- return ret;
+ goto out;
}
+out:
close(fd);
free(data);
- return 0;
+ return ret;
}
int usage(void)