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tools/power/x86/intel-speed-select: Fix off by one check

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[ Upstream commit d9f74d98bbec978edbf860f729b531281ba0d8ff ]

Change > MAX_DIE_PER_PACKAGE to >= MAX_DIE_PER_PACKAGE to prevent
accessing one element beyond the end of the array.

Fixes: 7fd786dfbd2c ("tools/power/x86/intel-speed-select: OOB daemon mode")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2022-07-18 16:17:17 +03:00 committed by Greg Kroah-Hartman
parent a2bcf77490
commit 385de404e2
1 changed files with 1 additions and 1 deletions
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tools/power/x86/intel-speed-select/isst-daemon.c
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@ -41,7 +41,7 @@ void process_level_change(int cpu)
time_t tm;
int ret;
if (pkg_id >= MAX_PACKAGE_COUNT || die_id > MAX_DIE_PER_PACKAGE) {
if (pkg_id >= MAX_PACKAGE_COUNT || die_id >= MAX_DIE_PER_PACKAGE) {
debug_printf("Invalid package/die info for cpu:%d\n", cpu);
return;
}