5.5

CVE-2021-47207

ALSA: gus: fix null pointer dereference on pointer block

In the Linux kernel, the following vulnerability has been resolved:

ALSA: gus: fix null pointer dereference on pointer block

The pointer block return from snd_gf1_dma_next_block could be
null, so there is a potential null pointer dereference issue.
Fix this by adding a null check before dereference.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.4.293
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.291
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.256
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.218
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.162
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.82
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.5
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.13
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3
Patch
https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0f
Patch
https://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5be
Patch
https://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030c
Patch
https://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aa
Patch
https://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315
Patch
https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bc
Patch
https://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fc
Patch