Unverified Commit 3cb1031f authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!13225 fs/ntfs3: Check if more than chunk-size bytes are written 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zizhi Wo <wozizhi@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/BFTMYHI2RSBQFFT2DYSCOGQM2JSTVZEI/ 
 
https://gitee.com/src-openeuler/kernel/issues/IB379U 
 
Link:https://gitee.com/openeuler/kernel/pulls/13225

 

Reviewed-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents cdfa4d0c addd9084

fs/ntfs3/lznt.c

+3 −0
Original line number Diff line number Diff line
@@ -236,6 +236,9 @@ static inline ssize_t decompress_chunk(u8 *unc, u8 *unc_end, const u8 *cmpr, 


	/* Do decompression until pointers are inside range. */

	while (up < unc_end && cmpr < cmpr_end) {

		// return err if more than LZNT_CHUNK_SIZE bytes are written

		if (up - unc > LZNT_CHUNK_SIZE)

			return -EINVAL;

		/* Correct index */

		while (unc + s_max_off[index] < up)

			index += 1;