Unverified Commit af25a5ba authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!8019 pstore/zone: Add a null pointer check to the psz_kmsg_read 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zeng Heng <zengheng4@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/4TXUX25QEN5LXWTPSJSUQOCWZPYSPWG4/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9QGKD 
 
Link:https://gitee.com/openeuler/kernel/pulls/8019

 

Reviewed-by: default avatarWei Li <liwei391@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents 03fe15a0 d058315c

fs/pstore/zone.c

+2 −0
Original line number Diff line number Diff line
@@ -973,6 +973,8 @@ static ssize_t psz_kmsg_read(struct pstore_zone *zone, 
		char *buf = kasprintf(GFP_KERNEL, "%s: Total %d times\n",

				      kmsg_dump_reason_str(record->reason),

				      record->count);

		if (!buf)

			return -ENOMEM;

		hlen = strlen(buf);

		record->buf = krealloc(buf, hlen + size, GFP_KERNEL);

		if (!record->buf) {