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Vulnerability of Linux kernel: denial of service via xfs_setattr_nonsize

Synthesis of the vulnerability 

An attacker can trigger a fatal error via xfs_setattr_nonsize() of the Linux kernel, in order to trigger a denial of service.
Vulnerable systems: Debian, Fedora, Linux, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this threat: 1/4.
Creation date: 26/08/2019.
Références of this weakness: CERTFR-2019-AVI-455, CERTFR-2019-AVI-478, CERTFR-2019-AVI-482, CERTFR-2019-AVI-502, CERTFR-2019-AVI-503, CERTFR-2019-AVI-530, CERTFR-2020-AVI-281, CVE-2019-15538, DLA-1919-1, DLA-1919-2, FEDORA-2019-4c91a2f76e, FEDORA-2019-97380355ae, openSUSE-SU-2019:2173-1, openSUSE-SU-2019:2181-1, RHSA-2020:2104-01, 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, USN-4144-1, USN-4147-1, VIGILANCE-VUL-30164.

Description of the vulnerability 

An attacker can trigger a fatal error via xfs_setattr_nonsize() of the Linux kernel, in order to trigger a denial of service.
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This threat bulletin impacts software or systems such as Debian, Fedora, Linux, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this computer threat 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 computer threat.

Solutions for this threat 

Linux kernel: version 5.2.11.
The version 5.2.11 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 4.19.69.
The version 4.19.69 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.141.
The version 4.14.141 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.191.
The version 4.9.191 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: patch for xfs_setattr_nonsize.
A patch is indicated in information sources.

Debian 8: new linux-4.9 packages.
New packages are available:
  Debian 8: linux-4.9 4.9.189-3~deb8u1

Fedora: new kernel-headers packages.
New packages are available:
  Fedora 29: kernel-headers 5.2.11-100.fc29
  Fedora 30: kernel-headers 5.2.11-200.fc30

Fedora: new kernel packages (04/09/2019).
New packages are available:
  Fedora 29: kernel 5.2.11-100.fc29
  Fedora 30: kernel 5.2.11-200.fc30

Fedora: new kernel-tools packages.
New packages are available:
  Fedora 29: kernel-tools 5.2.11-100.fc29
  Fedora 30: kernel-tools 5.2.11-200.fc30

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

RHEL 7: new kernel-alt packages.
New packages are available:
  RHEL 7.0-7.8: kernel-alt 4.14.0-115.21.2.el7a

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 18.04 LTS: linux-image-generic 4.15.0.65.67
  Ubuntu 16.04 LTS: linux-image-generic-hwe-16.04 4.15.0.65.85

Ubuntu: new linux-image-5.0.0 packages.
New packages are available:
  Ubuntu 19.04: linux-image-generic 5.0.0.31.32
  Ubuntu 18.04 LTS: linux-image-generic-hwe-18.04 5.0.0.31.88
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