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Vulnerability of Linux kernel: use after free via rsi_mac80211_detach

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via rsi_mac80211_detach() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Debian, Linux, openSUSE Leap, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this announce: 1/4.
Creation date: 25/09/2019.
Références of this computer vulnerability: CERTFR-2019-AVI-455, CERTFR-2019-AVI-502, CERTFR-2019-AVI-503, CERTFR-2019-AVI-527, CERTFR-2019-AVI-530, CERTFR-2020-AVI-123, CERTFR-2020-AVI-318, CVE-2018-21008, DLA-1930-1, DLA-2114-1, openSUSE-SU-2019:2173-1, openSUSE-SU-2019:2181-1, SSA:2020-086-01, SUSE-SU-2019:2412-1, SUSE-SU-2019:2424-1, SUSE-SU-2019:2648-1, SUSE-SU-2019:2651-1, SUSE-SU-2019:2658-1, SUSE-SU-2019:2738-1, SUSE-SU-2020:1255-1, USN-4162-1, USN-4162-2, USN-4163-1, USN-4163-2, VIGILANCE-VUL-30403.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via rsi_mac80211_detach() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
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This security vulnerability impacts software or systems such as Debian, Linux, openSUSE Leap, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this computer weakness bulletin is low.

The trust level is of type confirmed by the editor, with an origin of user shell.

An attacker with a expert ability can exploit this security note.

Solutions for this threat 

Linux kernel: version 4.16.7.
The version 4.16.7 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.166.
The version 4.14.166 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.211.
The version 4.9.211 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.4.211.
The version 4.4.211 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Debian 8: new linux-4.9 packages.
New packages are available:
  Debian 8: linux-4.9 4.9.210-1~deb8u1

Debian 8: new linux packages.
New packages are available:
  Debian 8: linux 3.16.74-1

openSUSE Leap 15: new kernel packages.
New packages are available:
  openSUSE Leap 15.0: kernel 4.12.14-lp150.12.73.1
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.16.1

Slackware 14.2: new kernel packages (27/03/2020).
New packages are available:
  Slackware 14.2: kernel 4.4.217-i586-1

SUSE LE 12 SP2: new kernel packages.
New packages are available:
  SUSE LE 12 SP2: kernel-default 4.4.121-92.129.1

SUSE LE 12 SP4: new kernel-azure packages.
New packages are available:
  SUSE LE 12 SP4: kernel-azure 4.12.14-6.26.1

SUSE LE 12 SP4: new kernel-default packages.
New packages are available:
  SUSE LE 12 SP4: kernel-default 4.12.14-95.32.1

SUSE LE 15: new kernel-azure packages.
New packages are available:
  SUSE LE 15 RTM: kernel-azure 4.12.14-5.41.1
  SUSE LE 15 SP1: kernel-azure 4.12.14-8.16.1

SUSE LE 15 SP1: new kernel-default packages.
New packages are available:
  SUSE LE 15 SP1: kernel-default 4.12.14-197.18.1

SUSE LE 15 SP1: new kernel-rt packages.
New packages are available:
  SUSE LE 15 SP1: kernel-rt 4.12.14-14.11.1

Ubuntu: new linux-image-4.15.0 packages.
New packages are available:
  Ubuntu 14.04 ESM: linux-image-azure 4.15.0.1061.47
  Ubuntu 16.04 LTS: linux-image-generic-hwe-16.04 4.15.0.66.86
  Ubuntu 18.04 LTS: linux-image-generic 4.15.0.66.68

Ubuntu: new linux-image-4.4.0 packages.
New packages are available:
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.166.174
  Ubuntu 14.04 ESM: linux-image-aws 4.4.0.1056.57
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