An issue was discovered in the Linux kernel before 5.0.7. A NULL pointer dereference can occur when megasas_create_frame_pool() fails in megasas_alloc_cmds() in drivers/scsi/megaraid/megaraid_sas_base.c. This causes a Denial of Service, related to a use-after-free.
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html
http://www.securityfocus.com/bid/108286
https://access.redhat.com/errata/RHSA-2019:1959
https://access.redhat.com/errata/RHSA-2019:1971
https://access.redhat.com/errata/RHSA-2019:2029
https://access.redhat.com/errata/RHSA-2019:2043
https://access.redhat.com/errata/RHSA-2019:2736
https://access.redhat.com/errata/RHSA-2019:2837
https://access.redhat.com/errata/RHSA-2019:3217
https://access.redhat.com/errata/RHSA-2020:0036
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.7
https://github.com/torvalds/linux/commit/bcf3b67d16a4c8ffae0aa79de5853435e683945c
https://lists.debian.org/debian-lts-announce/2019/06/msg00010.html
https://security.netapp.com/advisory/ntap-20190719-0003/
https://support.f5.com/csp/article/K50484570
https://usn.ubuntu.com/4005-1/
https://usn.ubuntu.com/4008-1/
https://usn.ubuntu.com/4008-3/
Source: MITRE
Published: 2019-05-07
Updated: 2020-08-24
Type: CWE-476
Base Score: 7.8
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 10
Severity: HIGH
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH