CVE-2024-50202

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-50202
In the Linux kernel, the following vulnerability has been resolved: nilfs2: propagate directory read errors from nilfs_find_entry() Syzbot reported that a task hang occurs in vcs_open() during a fuzzing test for nilfs2. The root cause of this problem is that in nilfs_find_entry(), which searches for directory entries, ignores errors when loading a directory page/folio via nilfs_get_folio() fails. If the filesystem images is corrupted, and the i_size of the directory inode is large, and the directory page/folio is successfully read but fails the sanity check, for example when it is zero-filled, nilfs_check_folio() may continue to spit out error messages in bursts. Fix this issue by propagating the error to the callers when loading a page/folio fails in nilfs_find_entry(). The current interface of nilfs_find_entry() and its callers is outdated and cannot propagate error codes such as -EIO and -ENOMEM returned via nilfs_find_entry(), so fix it together.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/08cfa12adf888db98879dbd735bc741360a34168 Patch
https://git.kernel.org/stable/c/270a6f9df35fa2aea01ec23770dc9b3fc9a12989 Patch
https://git.kernel.org/stable/c/9698088ac7704e260f492d9c254e29ed7dd8729a Patch
https://git.kernel.org/stable/c/b4b3dc9e7e604be98a222e9f941f5e93798ca475 Patch
https://git.kernel.org/stable/c/bb857ae1efd3138c653239ed1e7aef14e1242c81 Patch
https://git.kernel.org/stable/c/c1d0476885d708a932980b0f28cd90d9bd71db39 Patch
https://git.kernel.org/stable/c/edf8146057264191d5bfe5b91773f13d936dadd3 Patch
https://git.kernel.org/stable/c/efa810b15a25531cbc2f527330947b9fe16916e7 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*
History

19 Nov 2024, 16:12

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-755
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/08cfa12adf888db98879dbd735bc741360a34168 - () https://git.kernel.org/stable/c/08cfa12adf888db98879dbd735bc741360a34168 - Patch
References () https://git.kernel.org/stable/c/270a6f9df35fa2aea01ec23770dc9b3fc9a12989 - () https://git.kernel.org/stable/c/270a6f9df35fa2aea01ec23770dc9b3fc9a12989 - Patch
References () https://git.kernel.org/stable/c/9698088ac7704e260f492d9c254e29ed7dd8729a - () https://git.kernel.org/stable/c/9698088ac7704e260f492d9c254e29ed7dd8729a - Patch
References () https://git.kernel.org/stable/c/b4b3dc9e7e604be98a222e9f941f5e93798ca475 - () https://git.kernel.org/stable/c/b4b3dc9e7e604be98a222e9f941f5e93798ca475 - Patch
References () https://git.kernel.org/stable/c/bb857ae1efd3138c653239ed1e7aef14e1242c81 - () https://git.kernel.org/stable/c/bb857ae1efd3138c653239ed1e7aef14e1242c81 - Patch
References () https://git.kernel.org/stable/c/c1d0476885d708a932980b0f28cd90d9bd71db39 - () https://git.kernel.org/stable/c/c1d0476885d708a932980b0f28cd90d9bd71db39 - Patch
References () https://git.kernel.org/stable/c/edf8146057264191d5bfe5b91773f13d936dadd3 - () https://git.kernel.org/stable/c/edf8146057264191d5bfe5b91773f13d936dadd3 - Patch
References () https://git.kernel.org/stable/c/efa810b15a25531cbc2f527330947b9fe16916e7 - () https://git.kernel.org/stable/c/efa810b15a25531cbc2f527330947b9fe16916e7 - Patch

08 Nov 2024, 16:15

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nilfs2: propagar errores de lectura de directorio desde nilfs_find_entry() Syzbot informó que se produce un bloqueo de tarea en vcs_open() durante una prueba de fuzzing para nilfs2. La causa raíz de este problema es que en nilfs_find_entry(), que busca entradas de directorio, ignora los errores cuando falla la carga de una página/folio de directorio a través de nilfs_get_folio(). Si las imágenes del sistema de archivos están dañadas, y el i_size del inodo del directorio es grande, y la página/folio del directorio se lee correctamente pero falla la comprobación de cordura, por ejemplo, cuando está llena de ceros, nilfs_check_folio() puede seguir arrojando mensajes de error en ráfagas. Solucione este problema propagando el error a los llamadores cuando falla la carga de una página/folio en nilfs_find_entry(). La interfaz actual de nilfs_find_entry() y sus llamadores está desactualizada y no puede propagar códigos de error como -EIO y -ENOMEM devueltos a través de nilfs_find_entry(), así que arréglenlo juntos.
References
  • () https://git.kernel.org/stable/c/b4b3dc9e7e604be98a222e9f941f5e93798ca475 -
  • () https://git.kernel.org/stable/c/bb857ae1efd3138c653239ed1e7aef14e1242c81 -

08 Nov 2024, 06:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-11-08 06:15

Updated : 2024-11-19 16:12

NVD link : CVE-2024-50202

Mitre link : CVE-2024-50202

CVE.ORG link : CVE-2024-50202

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-755

Improper Handling of Exceptional Conditions