CVE-2022-49474

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49474
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout Connecting the same socket twice consecutively in sco_sock_connect() could lead to a race condition where two sco_conn objects are created but only one is associated with the socket. If the socket is closed before the SCO connection is established, the timer associated with the dangling sco_conn object won't be canceled. As the sock object is being freed, the use-after-free problem happens when the timer callback function sco_sock_timeout() accesses the socket. Here's the call trace: dump_stack+0x107/0x163 ? refcount_inc+0x1c/ print_address_description.constprop.0+0x1c/0x47e ? refcount_inc+0x1c/0x7b kasan_report+0x13a/0x173 ? refcount_inc+0x1c/0x7b check_memory_region+0x132/0x139 refcount_inc+0x1c/0x7b sco_sock_timeout+0xb2/0x1ba process_one_work+0x739/0xbd1 ? cancel_delayed_work+0x13f/0x13f ? __raw_spin_lock_init+0xf0/0xf0 ? to_kthread+0x59/0x85 worker_thread+0x593/0x70e kthread+0x346/0x35a ? drain_workqueue+0x31a/0x31a ? kthread_bind+0x4b/0x4b ret_from_fork+0x1f/0x30

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/36c644c63bfcaee2d3a426f45e89a9cd09799318 Patch
https://git.kernel.org/stable/c/390d82733a953c1fabf3de9c9618091a7a9c90a6 Patch
https://git.kernel.org/stable/c/537f619dea4e3fa8ed1f8f938abffe3615794bcc Patch
https://git.kernel.org/stable/c/65d347cb39e2e6bd0c2a745ad7c928998ebb0162 Patch
https://git.kernel.org/stable/c/6f55fac0af3531cf60d11369454c41f5fc81ab3f Patch
https://git.kernel.org/stable/c/7aa1e7d15f8a5b65f67bacb100d8fc033b21efa2 Patch
https://git.kernel.org/stable/c/7d61dbd7311ab978d8ddac1749a758de4de00374 Patch
https://git.kernel.org/stable/c/99df16007f4bbf9abfc3478cb17d10f0d7f8906e Patch
https://git.kernel.org/stable/c/9de3dc09e56f8deacd2bdbf4cecb71e11a312405 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

24 Mar 2025, 19:59

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: se corrige el sco_conn colgante y el use-after-free en sco_sock_timeout Conectar el mismo socket dos veces consecutivas en sco_sock_connect() podría provocar una condición de ejecución en la que se crean dos objetos sco_conn pero solo uno está asociado con el socket. Si el socket se cierra antes de que se establezca la conexión SCO, el temporizador asociado con el objeto sco_conn colgante no se cancelará. A medida que se libera el objeto sock, el problema de use-after-free ocurre cuando la función de devolución de llamada del temporizador sco_sock_timeout() accede al socket. Aquí está el seguimiento de la llamada: dump_stack+0x107/0x163 ? refcount_inc+0x1c/ print_address_description.constprop.0+0x1c/0x47e ? refcount_inc+0x1c/0x7b kasan_report+0x13a/0x173 ? refcount_inc+0x1c/0x7b check_memory_region+0x132/0x139 refcount_inc+0x1c/0x7b sco_sock_timeout+0xb2/0x1ba process_one_work+0x739/0xbd1 ? cancel_delayed_work+0x13f/0x13f ? __raw_spin_lock_init+0xf0/0xf0 ? to_kthread+0x59/0x85 worker_thread+0x593/0x70e kthread+0x346/0x35a ? drain_workqueue+0x31a/0x31a ? kthread_bind+0x4b/0x4b ret_from_fork+0x1f/0x30
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/36c644c63bfcaee2d3a426f45e89a9cd09799318 - () https://git.kernel.org/stable/c/36c644c63bfcaee2d3a426f45e89a9cd09799318 - Patch
References () https://git.kernel.org/stable/c/390d82733a953c1fabf3de9c9618091a7a9c90a6 - () https://git.kernel.org/stable/c/390d82733a953c1fabf3de9c9618091a7a9c90a6 - Patch
References () https://git.kernel.org/stable/c/537f619dea4e3fa8ed1f8f938abffe3615794bcc - () https://git.kernel.org/stable/c/537f619dea4e3fa8ed1f8f938abffe3615794bcc - Patch
References () https://git.kernel.org/stable/c/65d347cb39e2e6bd0c2a745ad7c928998ebb0162 - () https://git.kernel.org/stable/c/65d347cb39e2e6bd0c2a745ad7c928998ebb0162 - Patch
References () https://git.kernel.org/stable/c/6f55fac0af3531cf60d11369454c41f5fc81ab3f - () https://git.kernel.org/stable/c/6f55fac0af3531cf60d11369454c41f5fc81ab3f - Patch
References () https://git.kernel.org/stable/c/7aa1e7d15f8a5b65f67bacb100d8fc033b21efa2 - () https://git.kernel.org/stable/c/7aa1e7d15f8a5b65f67bacb100d8fc033b21efa2 - Patch
References () https://git.kernel.org/stable/c/7d61dbd7311ab978d8ddac1749a758de4de00374 - () https://git.kernel.org/stable/c/7d61dbd7311ab978d8ddac1749a758de4de00374 - Patch
References () https://git.kernel.org/stable/c/99df16007f4bbf9abfc3478cb17d10f0d7f8906e - () https://git.kernel.org/stable/c/99df16007f4bbf9abfc3478cb17d10f0d7f8906e - Patch
References () https://git.kernel.org/stable/c/9de3dc09e56f8deacd2bdbf4cecb71e11a312405 - () https://git.kernel.org/stable/c/9de3dc09e56f8deacd2bdbf4cecb71e11a312405 - Patch

27 Feb 2025, 19:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CWE CWE-416

26 Feb 2025, 07:01

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-26 07:01

Updated : 2025-03-24 19:59

NVD link : CVE-2022-49474

Mitre link : CVE-2022-49474

CVE.ORG link : CVE-2022-49474

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free