Unverified Commit 8cfcf54d authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!10141 vt_ioctl: fix array_index_nospec in vt_setactivate 

Merge Pull Request from: @ci-robot 
 
PR sync from: Cai Xinchen <caixinchen1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/SBR6PGM7XKBSGGQJBFC4EQS3E3Q4OKX7/ 
 
https://gitee.com/src-openeuler/kernel/issues/IADG0Z 
 
Link:https://gitee.com/openeuler/kernel/pulls/10141
parents 9441eee4 a5dac4d4

drivers/tty/vt/vt_ioctl.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -673,9 +673,9 @@ int vt_ioctl(struct tty_struct *tty, 
		if (vsa.console == 0 || vsa.console > MAX_NR_CONSOLES)

		if (vsa.console == 0 || vsa.console > MAX_NR_CONSOLES)

			ret = -ENXIO;

			ret = -ENXIO;

		else {

		else {

			vsa.console = array_index_nospec(vsa.console,

							 MAX_NR_CONSOLES + 1);

			vsa.console--;

			vsa.console--;

			vsa.console = array_index_nospec(vsa.console,

							 MAX_NR_CONSOLES);

			console_lock();

			console_lock();

			ret = vc_allocate(vsa.console);

			ret = vc_allocate(vsa.console);

			if (ret == 0) {

			if (ret == 0) {