CVE-2019-16233 — drivers/scsi/qla2xxx/qla_os

drivers/scsi/qla2xxx/qla_os.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference.

01What is this vulnerability?

drivers/scsi/qla2xxx/qla_os.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-09-11T15:30:01.000Z
• Last modified: 2024-08-05T01:10:41.666Z

09References

• lkml.org — https://lkml.org/lkml/2019/9/9/487
• security.netapp.com — https://security.netapp.com/advisory/ntap-20191004-0001/
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00035.html
• usn.ubuntu.com — https://usn.ubuntu.com/4227-1/
• usn.ubuntu.com — https://usn.ubuntu.com/4226-1/
• usn.ubuntu.com — https://usn.ubuntu.com/4227-2/
• usn.ubuntu.com — https://usn.ubuntu.com/4346-1/