In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: Fix missing pointer check in hdacomponentmanagerinit function The _componentmatchadd function may assign the 'matchptr' pointer the value ERRPTR(-ENOMEM), which will subsequently be dereferenced. The call stack leading to the error looks like this: hdacomponentmanagerinit |-> componentmatchadd |-> componentmatchaddrelease |-> _componentmatchadd ( ... ,**matchptr, ... ) |-> *matchptr = ERRPTR(-ENOMEM); // assign |-> componentmasteraddwithmatch( ... match) |-> componentmatchrealloc(match, match->num); // dereference Add ISERR() check to prevent the crash. Found by Linux Verification Center (linuxtesting.org) with SVACE.