Unverified Commit c739f976 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!9453 jffs2: prevent xattr node from overflowing the eraseblock 

Merge Pull Request from: @ci-robot 
 
PR sync from: Wang Zhaolong <wangzhaolong1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/W2XFIUKICCZ4TCM5RH2I7HCWNPSISXQQ/ 
 
https://gitee.com/src-openeuler/kernel/issues/IA6SEU 
 
Link:https://gitee.com/openeuler/kernel/pulls/9453

 

Reviewed-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents d8358467 fe8a574b

fs/jffs2/xattr.c

+3 −0
Original line number Diff line number Diff line
@@ -1151,6 +1151,9 @@ int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname, 
		return rc;



	request = PAD(sizeof(struct jffs2_raw_xattr) + strlen(xname) + 1 + size);

	if (request > c->sector_size - c->cleanmarker_size)

		return -ERANGE;



	rc = jffs2_reserve_space(c, request, &length,

				 ALLOC_NORMAL, JFFS2_SUMMARY_XATTR_SIZE);

	if (rc) {