CVE-2022-49376

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> scsi: sd: Fix potential NULL pointer dereference<br /> <br /> If sd_probe() sees an early error before sdkp-&gt;device is initialized,<br /> sd_zbc_release_disk() is called. This causes a NULL pointer dereference<br /> when sd_is_zoned() is called inside that function. Avoid this by removing<br /> the call to sd_zbc_release_disk() in sd_probe() error path.<br /> <br /> This change is safe and does not result in zone information memory leakage<br /> because the zone information for a zoned disk is allocated only when<br /> sd_revalidate_disk() is called, at which point sdkp-&gt;disk_dev is fully set,<br /> resulting in sd_disk_release() being called when needed to cleanup a disk<br /> zone information using sd_zbc_release_disk().