CVE-2024-50210

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-50210
In the Linux kernel, the following vulnerability has been resolved: posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime() If get_clock_desc() succeeds, it calls fget() for the clockid's fd, and get the clk->rwsem read lock, so the error path should release the lock to make the lock balance and fput the clockid's fd to make the refcount balance and release the fd related resource. However the below commit left the error path locked behind resulting in unbalanced locking. Check timespec64_valid_strict() before get_clock_desc() to fix it, because the "ts" is not changed after that. [pabeni@redhat.com: fixed commit message typo]

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/1ba33b327c3f88a7baee598979d73ab5b44d41cc Patch
https://git.kernel.org/stable/c/5f063bbf1ee6b01611c016b54e050a41506eb794 Patch
https://git.kernel.org/stable/c/6e62807c7fbb3c758d233018caf94dfea9c65dbd Patch
https://git.kernel.org/stable/c/a8219446b95a859488feaade674d13f9efacfa32 Patch
https://git.kernel.org/stable/c/b27330128eca25179637c1816d5a72d6cc408c66 Patch
https://git.kernel.org/stable/c/c7fcfdba35abc9f39b83080c2bce398dad13a943 Patch
https://git.kernel.org/stable/c/d005400262ddaf1ca1666bbcd1acf42fe81d57ce Patch
https://git.kernel.org/stable/c/e56e0ec1b79f5a6272c6e78b36e9d593aa0449af Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15.169:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1.114:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6.58:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11.5:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*
History

19 Nov 2024, 16:26

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/1ba33b327c3f88a7baee598979d73ab5b44d41cc - () https://git.kernel.org/stable/c/1ba33b327c3f88a7baee598979d73ab5b44d41cc - Patch
References () https://git.kernel.org/stable/c/5f063bbf1ee6b01611c016b54e050a41506eb794 - () https://git.kernel.org/stable/c/5f063bbf1ee6b01611c016b54e050a41506eb794 - Patch
References () https://git.kernel.org/stable/c/6e62807c7fbb3c758d233018caf94dfea9c65dbd - () https://git.kernel.org/stable/c/6e62807c7fbb3c758d233018caf94dfea9c65dbd - Patch
References () https://git.kernel.org/stable/c/a8219446b95a859488feaade674d13f9efacfa32 - () https://git.kernel.org/stable/c/a8219446b95a859488feaade674d13f9efacfa32 - Patch
References () https://git.kernel.org/stable/c/b27330128eca25179637c1816d5a72d6cc408c66 - () https://git.kernel.org/stable/c/b27330128eca25179637c1816d5a72d6cc408c66 - Patch
References () https://git.kernel.org/stable/c/c7fcfdba35abc9f39b83080c2bce398dad13a943 - () https://git.kernel.org/stable/c/c7fcfdba35abc9f39b83080c2bce398dad13a943 - Patch
References () https://git.kernel.org/stable/c/d005400262ddaf1ca1666bbcd1acf42fe81d57ce - () https://git.kernel.org/stable/c/d005400262ddaf1ca1666bbcd1acf42fe81d57ce - Patch
References () https://git.kernel.org/stable/c/e56e0ec1b79f5a6272c6e78b36e9d593aa0449af - () https://git.kernel.org/stable/c/e56e0ec1b79f5a6272c6e78b36e9d593aa0449af - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15.169:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1.114:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11.5:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6.58:*:*:*:*:*:*:*
CWE CWE-667

08 Nov 2024, 16:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/a8219446b95a859488feaade674d13f9efacfa32 -
  • () https://git.kernel.org/stable/c/c7fcfdba35abc9f39b83080c2bce398dad13a943 -
  • () https://git.kernel.org/stable/c/d005400262ddaf1ca1666bbcd1acf42fe81d57ce -
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: posix-clock: posix-clock: Corregir bloqueo desequilibrado en pc_clock_settime() Si get_clock_desc() tiene éxito, llama a fget() para el fd del clockid y obtiene el bloqueo de lectura clk->rwsem, por lo que la ruta de error debería liberar el bloqueo para equilibrar el bloqueo y fput el fd del clockid para equilibrar el refcount y liberar el recurso relacionado con el fd. Sin embargo, la siguiente confirmación dejó la ruta de error bloqueada, lo que resultó en un bloqueo desequilibrado. Verifique timespec64_valid_strict() antes de get_clock_desc() para corregirlo, porque el "ts" no se cambia después de eso. [pabeni@redhat.com: se corrigió un error tipográfico en el mensaje de confirmación]

08 Nov 2024, 06:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-11-08 06:15

Updated : 2024-11-19 16:26

NVD link : CVE-2024-50210

Mitre link : CVE-2024-50210

CVE.ORG link : CVE-2024-50210

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-667

Improper Locking