> > +------------------------------------------+------------+------------+ > | | dfd001e50c | 286b15db78 | > +------------------------------------------+------------+------------+ > | boot_successes | 14 | 0 | > | boot_failures | 0 | 16 | > | BUG:KASAN:wild-memory-access_in_t | 0 | 16 | > | general_protection_fault:#[##] | 0 | 16 | > | RIP:try_module_get | 0 | 16 | > | Kernel_panic-not_syncing:Fatal_exception | 0 | 16 | > +------------------------------------------+------------+------------+ > > > If you fix the issue, kindly add following tag > Reported-by: kernel test robot <rong.a.chen(a)intel.com&gt; > > > [ 2.801166] BUG: KASAN: wild-memory-access in try_module_get+0x78/0x1bf > [ 2.803334] Read of size 4 at addr 6b6b6b6b6b6b6b6b by task swapper/0

> Try to pump up module after checking it is valid only if .owner = THIS_MODULE does not help in the case of hpet.

Hillf --- kernel/time/tick-common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c index 529143b..1b33215 100644 --- a/kernel/time/tick-common.c +++ b/kernel/time/tick-common.c @@ -311,7 +311,7 @@ void tick_check_new_device(struct clock_event_device *newdev) if (!tick_check_preferred(curdev, newdev)) goto out_bc; - if (!try_module_get(newdev->owner)) + if (newdev->owner && !try_module_get(newdev->owner))