Unverified Commit 5d20825c authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!13411 udf: fix uninit-value use in udf_get_fileshortad 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zicheng Qu <quzicheng@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/RNPRDRY72KQS4M3R4TC6QOOLIN5AJWLF/ 
 
https://gitee.com/src-openeuler/kernel/issues/IB2SWN 
 
Link:https://gitee.com/openeuler/kernel/pulls/13411

 

Reviewed-by: default avatarLi Nan <linan122@huawei.com>
Signed-off-by: default avatarLi Nan <linan122@huawei.com>
parents 5562ee0b 0df6d21c

fs/udf/inode.c

+6 −3
Original line number Diff line number Diff line
@@ -2184,12 +2184,15 @@ int8_t udf_current_aext(struct inode *inode, struct extent_position *epos, 
		alen = udf_file_entry_alloc_offset(inode) +

							iinfo->i_lenAlloc;

	} else {

		struct allocExtDesc *header =

			(struct allocExtDesc *)epos->bh->b_data;



		if (!epos->offset)

			epos->offset = sizeof(struct allocExtDesc);

		ptr = epos->bh->b_data + epos->offset;

		alen = sizeof(struct allocExtDesc) +

			le32_to_cpu(((struct allocExtDesc *)epos->bh->b_data)->

							lengthAllocDescs);

		if (check_add_overflow((int)sizeof(struct allocExtDesc),

				(int)le32_to_cpu(header->lengthAllocDescs), &alen))

			return -1;

	}



	switch (iinfo->i_alloc_type) {