Vigil@nce - Linux kernel: NULL pointer dereference via btrfs_verify_dev_extents
December 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulne...
SYNTHESIS OF THE VULNERABILITY
Impacted products: Linux.
Consequences: denial of service on server, denial of service on service.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 15/11/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can force a NULL pointer to be dereferenced via btrfs_verify_dev_extents() of the Linux kernel, in order to trigger a denial of service.
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