CVE-2019-19965: Canonical Ubuntu Linux

Medium severity, CVSS 4.7. EPSS: 0.7% chance of exploitation in the next 30 days.

In the Linux kernel through 5.4.6, there is a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 19.10 only
• Debian Debian Linux: version 8.0 only
• Linux Linux Kernel: up to and including 5.4.6
• Netapp 8300 Firmware: affected versions not specified
• Netapp 8700 Firmware: affected versions not specified
• Netapp a400 Firmware: affected versions not specified
• Netapp a700s Firmware: affected versions not specified
• Netapp Active Iq Unified Manager: affected versions not specified
• Netapp Cloud Backup: affected versions not specified
• Netapp Data Availability Services: affected versions not specified
• Netapp E-Series Santricity OS Controller: from 11.0.0, up to and including 11.70.1
• Netapp h610s Firmware: affected versions not specified
• Netapp Hci Management Node: affected versions not specified
• Netapp Solidfire: affected versions not specified
• Netapp Steelstore Cloud Integrated Storage: affected versions not specified
• Opensuse Leap: version 15.1 only

Published 2019-12-25. Last modified 2026-10-08.