Unverified Commit 9757cd71 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!7889 vt: fix unicode buffer corruption when deleting characters 

Merge Pull Request from: @ci-robot 
 
PR sync from: Xiang Yang <xiangyang3@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/PUUCHAWUYXB5QOUFPO5REXQYB3HWFBLN/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9Q994 
 
Link:https://gitee.com/openeuler/kernel/pulls/7889

 

Reviewed-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents 7f5fed5d 52553ef9

drivers/tty/vt/vt.c

+1 −1
Original line number Diff line number Diff line
@@ -398,7 +398,7 @@ static void vc_uniscr_delete(struct vc_data *vc, unsigned int nr) 
		char32_t *ln = uniscr->lines[vc->state.y];

		unsigned int x = vc->state.x, cols = vc->vc_cols;



		memcpy(&ln[x], &ln[x + nr], (cols - x - nr) * sizeof(*ln));

		memmove(&ln[x], &ln[x + nr], (cols - x - nr) * sizeof(*ln));

		memset32(&ln[cols - nr], ' ', nr);

	}

}