CVE-2022-49229

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49229
In the Linux kernel, the following vulnerability has been resolved: ptp: unregister virtual clocks when unregistering physical clock. When unregistering a physical clock which has some virtual clocks, unregister the virtual clocks with it. This fixes the following oops, which can be triggered by unloading a driver providing a PTP clock when it has enabled virtual clocks: BUG: unable to handle page fault for address: ffffffffc04fc4d8 Oops: 0000 [#1] PREEMPT SMP NOPTI RIP: 0010:ptp_vclock_read+0x31/0xb0 Call Trace: timecounter_read+0xf/0x50 ptp_vclock_refresh+0x2c/0x50 ? ptp_clock_release+0x40/0x40 ptp_aux_kworker+0x17/0x30 kthread_worker_fn+0x9b/0x240 ? kthread_should_park+0x30/0x30 kthread+0xe2/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30

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/9c796a57cbb5daf124a665689f0b2bc9262e0ced Patch
https://git.kernel.org/stable/c/b2dea2a696d09163da4cd33cb598ce1f73e86597 Patch
https://git.kernel.org/stable/c/bfcbb76b0f595ea9ede9f7a218086fef85242f10 Patch
https://git.kernel.org/stable/c/c49eafe6249f844c26f9866886cc6719d81762df 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:5.14:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc7:*:*:*:*:*:*
History

21 Oct 2025, 11:52

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/9c796a57cbb5daf124a665689f0b2bc9262e0ced - () https://git.kernel.org/stable/c/9c796a57cbb5daf124a665689f0b2bc9262e0ced - Patch
References () https://git.kernel.org/stable/c/b2dea2a696d09163da4cd33cb598ce1f73e86597 - () https://git.kernel.org/stable/c/b2dea2a696d09163da4cd33cb598ce1f73e86597 - Patch
References () https://git.kernel.org/stable/c/bfcbb76b0f595ea9ede9f7a218086fef85242f10 - () https://git.kernel.org/stable/c/bfcbb76b0f595ea9ede9f7a218086fef85242f10 - Patch
References () https://git.kernel.org/stable/c/c49eafe6249f844c26f9866886cc6719d81762df - () https://git.kernel.org/stable/c/c49eafe6249f844c26f9866886cc6719d81762df - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ptp: anular el registro de los relojes virtuales al anular el registro del reloj físico. Al anular el registro de un reloj físico que tiene algunos relojes virtuales, anule el registro de los relojes virtuales con él. Esto corrige los siguientes errores, que pueden desencadenarse al descargar un controlador que proporciona un reloj PTP cuando ha habilitado los relojes virtuales: ERROR: no se puede manejar el fallo de página para la dirección: ffffffffc04fc4d8 Oops: 0000 [#1] PREEMPT SMP NOPTI RIP: 0010:ptp_vclock_read+0x31/0xb0 Seguimiento de llamadas: timecounter_read+0xf/0x50 ptp_vclock_refresh+0x2c/0x50 ? ptp_clock_release+0x40/0x40 ptp_aux_kworker+0x17/0x30 kthread_worker_fn+0x9b/0x240 ? kthread_should_park+0x30/0x30 kthread+0xe2/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:5.14:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:*
CWE NVD-CWE-noinfo
First Time Linux
Linux linux Kernel

26 Feb 2025, 07:00

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-26 07:00

Updated : 2025-10-21 11:52

NVD link : CVE-2022-49229

Mitre link : CVE-2022-49229

CVE.ORG link : CVE-2022-49229

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo