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Vulnerability of Linux kernel: denial of service via make_bad_inode

Synthesis of the vulnerability 

An attacker can trigger a fatal error via make_bad_inode() of the Linux kernel, in order to trigger a denial of service.
Impacted systems: Linux, openSUSE Leap, SLES.
Severity of this alert: 1/4.
Creation date: 15/04/2021.
Références of this alert: CERTFR-2021-AVI-284, CVE-2020-36322, openSUSE-SU-2021:0579-1, SUSE-SU-2021:1238-1, VIGILANCE-VUL-35087.

Description of the vulnerability 

An attacker can trigger a fatal error via make_bad_inode() of the Linux kernel, in order to trigger a denial of service.
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This vulnerability announce impacts software or systems such as Linux, openSUSE Leap, SLES.

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

Solutions for this threat 

Linux kernel: version 5.10.6.
The version 5.10.6 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 5.4.88.
The version 5.4.88 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

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

openSUSE Leap 15.2: new kernel packages.
New packages are available:
  openSUSE Leap 15.2: kernel 5.3.18-lp152.72.1

SUSE LE 15 SP2: new kernel packages.
New packages are available:
  SUSE LE 15 SP2: kernel 5.3.18-24.61.1
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Computer vulnerabilities tracking service 

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