CVE-2022-49830

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49830
In the Linux kernel, the following vulnerability has been resolved: drm/drv: Fix potential memory leak in drm_dev_init() drm_dev_init() will add drm_dev_init_release() as a callback. When drmm_add_action() failed, the release function won't be added. As the result, the ref cnt added by device_get() in drm_dev_init() won't be put by drm_dev_init_release(), which leads to the memleak. Use drmm_add_action_or_reset() instead of drmm_add_action() to prevent memleak. unreferenced object 0xffff88810bc0c800 (size 2048): comm "modprobe", pid 8322, jiffies 4305809845 (age 15.292s) hex dump (first 32 bytes): e8 cc c0 0b 81 88 ff ff ff ff ff ff 00 00 00 00 ................ 20 24 3c 0c 81 88 ff ff 18 c8 c0 0b 81 88 ff ff $<............. backtrace: [<000000007251f72d>] __kmalloc+0x4b/0x1c0 [<0000000045f21f26>] platform_device_alloc+0x2d/0xe0 [<000000004452a479>] platform_device_register_full+0x24/0x1c0 [<0000000089f4ea61>] 0xffffffffa0736051 [<00000000235b2441>] do_one_initcall+0x7a/0x380 [<0000000001a4a177>] do_init_module+0x5c/0x230 [<000000002bf8a8e2>] load_module+0x227d/0x2420 [<00000000637d6d0a>] __do_sys_finit_module+0xd5/0x140 [<00000000c99fc324>] do_syscall_64+0x3f/0x90 [<000000004d85aa77>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

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/07e56de8766fe5be67252596244b84ac0ec0de91 Patch
https://git.kernel.org/stable/c/bd8d1335e6e70a396094ef98913b513140c0b86b Patch
https://git.kernel.org/stable/c/c47a823ea186263ab69cfb665327b7f72cb5e779 Patch
https://git.kernel.org/stable/c/ff963634f7b2e0dc011349abb3fb81a0d074f443 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:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*
History

10 Nov 2025, 19:58

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/07e56de8766fe5be67252596244b84ac0ec0de91 - () https://git.kernel.org/stable/c/07e56de8766fe5be67252596244b84ac0ec0de91 - Patch
References () https://git.kernel.org/stable/c/bd8d1335e6e70a396094ef98913b513140c0b86b - () https://git.kernel.org/stable/c/bd8d1335e6e70a396094ef98913b513140c0b86b - Patch
References () https://git.kernel.org/stable/c/c47a823ea186263ab69cfb665327b7f72cb5e779 - () https://git.kernel.org/stable/c/c47a823ea186263ab69cfb665327b7f72cb5e779 - Patch
References () https://git.kernel.org/stable/c/ff963634f7b2e0dc011349abb3fb81a0d074f443 - () https://git.kernel.org/stable/c/ff963634f7b2e0dc011349abb3fb81a0d074f443 - Patch
CWE CWE-401
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*

02 May 2025, 13:53

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/drv: Se solucionó una posible fuga de memoria en drm_dev_init(). drm_dev_init() añadirá drm_dev_init_release() como devolución de llamada. Si drmm_add_action() falla, la función de liberación no se añadirá. Como resultado, el valor de referencia añadido por device_get() en drm_dev_init() no se incluirá en drm_dev_init_release(), lo que provoca la fuga de memoria. Utilice drmm_add_action_or_reset() en lugar de drmm_add_action() para evitar la fuga de memoria. objeto sin referencia 0xffff88810bc0c800 (tamaño 2048): comm "modprobe", pid 8322, jiffies 4305809845 (antigüedad 15.292s) volcado hexadecimal (primeros 32 bytes): e8 cc c0 0b 81 88 ff ff ff ff ff ff ff 00 00 00 00 ................ 20 24 3c 0c 81 88 ff ff 18 c8 c0 0b 81 88 ff ff $&lt;............. backtrace: [&lt;000000007251f72d&gt;] __kmalloc+0x4b/0x1c0 [&lt;0000000045f21f26&gt;] platform_device_alloc+0x2d/0xe0 [&lt;000000004452a479&gt;] platform_device_register_full+0x24/0x1c0 [&lt;0000000089f4ea61&gt;] 0xffffffffa0736051 [&lt;00000000235b2441&gt;] do_one_initcall+0x7a/0x380 [&lt;0000000001a4a177&gt;] do_init_module+0x5c/0x230 [&lt;000000002bf8a8e2&gt;] load_module+0x227d/0x2420 [&lt;00000000637d6d0a&gt;] __do_sys_finit_module+0xd5/0x140 [&lt;00000000c99fc324&gt;] do_syscall_64+0x3f/0x90 [&lt;000000004d85aa77&gt;] entry_SYSCALL_64_after_hwframe+0x63/0xcd

01 May 2025, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-01 15:16

Updated : 2025-11-10 19:58

NVD link : CVE-2022-49830

Mitre link : CVE-2022-49830

CVE.ORG link : CVE-2022-49830

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime