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Vulnerability record · CVE-2019-19965 · published 25 December 2019

CVE-2019-19965: Linux kernel null pointer dereference vulnerability

Linux · Linux Kernel

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.

4.7 CVSS 3.1 Medium EPSS 0.65% · top 50.4% CWE-476 · NULL pointer dereference
4.7CVSS 3.1 base score, v2 1.9
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
16Affected product versions listed by NVD
22References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

16 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html Mailing ListThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f70267f379b5e5e11bdc5d72a56bf17e5feed01f ExploitPatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20200204-0002/ Third Party Advisory
https://usn.ubuntu.com/4284-1/ Third Party Advisory
https://usn.ubuntu.com/4285-1/ Third Party Advisory
https://usn.ubuntu.com/4286-1/ Third Party Advisory
https://usn.ubuntu.com/4286-2/ Third Party Advisory
https://usn.ubuntu.com/4287-1/ Third Party Advisory
https://usn.ubuntu.com/4287-2/ Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html Mailing ListThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f70267f379b5e5e11bdc5d72a56bf17e5feed01f ExploitPatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20200204-0002/ Third Party Advisory
https://usn.ubuntu.com/4284-1/ Third Party Advisory
https://usn.ubuntu.com/4285-1/ Third Party Advisory
https://usn.ubuntu.com/4286-1/ Third Party Advisory
https://usn.ubuntu.com/4286-2/ Third Party Advisory
https://usn.ubuntu.com/4287-1/ Third Party Advisory
https://usn.ubuntu.com/4287-2/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-19965), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.