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Vulnerability Change Records for CVE-2021-46946

Change History

CVE Modified by kernel.org 3/08/2024 5:15:45 AM

Action Type Old Value New Value
Changed Description
In the Linux kernel, the following vulnerability has been resolved:

ext4: fix check to prevent false positive report of incorrect used inodes

Commit <50122847007> ("ext4: fix check to prevent initializing reserved
inodes") check the block group zero and prevent initializing reserved
inodes. But in some special cases, the reserved inode may not all belong
to the group zero, it may exist into the second group if we format
filesystem below.

  mkfs.ext4 -b 4096 -g 8192 -N 1024 -I 4096 /dev/sda

So, it will end up triggering a false positive report of a corrupted
file system. This patch fix it by avoid check reserved inodes if no free
inode blocks will be zeroed.
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Removed Reference
Linux https://git.kernel.org/stable/c/098b257563b959f4ca6c1d82fde0ee727792cb19

								
						
Removed Reference
Linux https://git.kernel.org/stable/c/539ba4ebc467260225898e67ea53cbb73308f894

								
						
Removed Reference
Linux https://git.kernel.org/stable/c/7687f5aba0f50c7ff8040e506bae184e59c8e7b8

								
						
Removed Reference
Linux https://git.kernel.org/stable/c/9c61387630a54e35b96a90608aafd369ffb86f39

								
						
Removed Reference
Linux https://git.kernel.org/stable/c/a149d2a5cabbf6507a7832a1c4fd2593c55fd450

								
						
Removed Reference
Linux https://git.kernel.org/stable/c/d2e121be8d318524a61e13ca15b5bfab2d0b63c7

								
						
Removed Reference
Linux https://git.kernel.org/stable/c/e18d76a12b34791bc0318a0e0c0fa5863cd8dabf

								
						
Removed Reference
Linux https://git.kernel.org/stable/c/e70db6e43286a17c3dfc840fcee662de183b6a81

								
						
Removed Reference
Linux https://git.kernel.org/stable/c/f42789ee5f96743cdb5f69445cab3609458733f7

								
						

CVE Translated by kernel.org 3/08/2024 5:15:45 AM

Action Type Old Value New Value
Removed Translation
Title: kernel de Linux
Description: En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ext4: revisión de corrección para evitar informes falsos positivos de inodos usados incorrectos Commit &lt;50122847007&gt; ("ext4: verificación de corrección para evitar la inicialización de inodos reservados") verifica el grupo de bloques cero y evita la inicialización inodos reservados. Pero en algunos casos especiales, es posible que no todos los inodos reservados pertenezcan al grupo cero, sino que pueden existir en el segundo grupo si formateamos el sistema de archivos a continuación. mkfs.ext4 -b 4096 -g 8192 -N 1024 -I 4096 /dev/sda Por lo tanto, terminará generando un informe falso positivo de un sistema de archivos dañado. Este parche lo soluciona evitando verificar los inodos reservados si no se ponen a cero los bloques de inodos libres.

								
						

CVE Rejected by kernel.org 3/08/2024 5:15:45 AM

Action Type Old Value New Value