CVE-2022-49381

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49381
In the Linux kernel, the following vulnerability has been resolved: jffs2: fix memory leak in jffs2_do_fill_super If jffs2_iget() or d_make_root() in jffs2_do_fill_super() returns an error, we can observe the following kmemleak report: -------------------------------------------- unreferenced object 0xffff888105a65340 (size 64): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff859c45e5>] kmem_cache_alloc_trace+0x475/0x8a0 [<ffffffff86160146>] jffs2_sum_init+0x96/0x1a0 [<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120 [<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810 [<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0 [...] unreferenced object 0xffff8881bd7f0000 (size 65536): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ backtrace: [<ffffffff858579ba>] kmalloc_order+0xda/0x110 [<ffffffff85857a11>] kmalloc_order_trace+0x21/0x130 [<ffffffff859c2ed1>] __kmalloc+0x711/0x8a0 [<ffffffff86160189>] jffs2_sum_init+0xd9/0x1a0 [<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120 [<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810 [<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0 [...] -------------------------------------------- This is because the resources allocated in jffs2_sum_init() are not released. Call jffs2_sum_exit() to release these resources to solve the problem.

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/28048a4cf3813b7cf5cc8cce629dfdc7951cb1c2 Patch
https://git.kernel.org/stable/c/3252d327f977b14663a10967f3b0930d6c325687 Patch
https://git.kernel.org/stable/c/4ba7bbeab8009faf3a726e565d98816593ddd5b0 Patch
https://git.kernel.org/stable/c/4da8763a3d2b684c773b72ed80fad40bc264bc40 Patch
https://git.kernel.org/stable/c/69295267c481545f636b69ff341b8db75aa136b9 Patch
https://git.kernel.org/stable/c/c14adb1cf70a984ed081c67e9d27bc3caad9537c Patch
https://git.kernel.org/stable/c/cf9db013e167bc8fc2ecd7a13ed97a37df0c9dab Patch
https://git.kernel.org/stable/c/d3a4fff1e7e408c32649030daa7c2c42a7e19a95 Patch
https://git.kernel.org/stable/c/ecc53e58596542791e82eff00702f8af7a313f70 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:*:*:*:*:*:*:*:*
History

14 Apr 2025, 20:38

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux
CWE CWE-401
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/28048a4cf3813b7cf5cc8cce629dfdc7951cb1c2 - () https://git.kernel.org/stable/c/28048a4cf3813b7cf5cc8cce629dfdc7951cb1c2 - Patch
References () https://git.kernel.org/stable/c/3252d327f977b14663a10967f3b0930d6c325687 - () https://git.kernel.org/stable/c/3252d327f977b14663a10967f3b0930d6c325687 - Patch
References () https://git.kernel.org/stable/c/4ba7bbeab8009faf3a726e565d98816593ddd5b0 - () https://git.kernel.org/stable/c/4ba7bbeab8009faf3a726e565d98816593ddd5b0 - Patch
References () https://git.kernel.org/stable/c/4da8763a3d2b684c773b72ed80fad40bc264bc40 - () https://git.kernel.org/stable/c/4da8763a3d2b684c773b72ed80fad40bc264bc40 - Patch
References () https://git.kernel.org/stable/c/69295267c481545f636b69ff341b8db75aa136b9 - () https://git.kernel.org/stable/c/69295267c481545f636b69ff341b8db75aa136b9 - Patch
References () https://git.kernel.org/stable/c/c14adb1cf70a984ed081c67e9d27bc3caad9537c - () https://git.kernel.org/stable/c/c14adb1cf70a984ed081c67e9d27bc3caad9537c - Patch
References () https://git.kernel.org/stable/c/cf9db013e167bc8fc2ecd7a13ed97a37df0c9dab - () https://git.kernel.org/stable/c/cf9db013e167bc8fc2ecd7a13ed97a37df0c9dab - Patch
References () https://git.kernel.org/stable/c/d3a4fff1e7e408c32649030daa7c2c42a7e19a95 - () https://git.kernel.org/stable/c/d3a4fff1e7e408c32649030daa7c2c42a7e19a95 - Patch
References () https://git.kernel.org/stable/c/ecc53e58596542791e82eff00702f8af7a313f70 - () https://git.kernel.org/stable/c/ecc53e58596542791e82eff00702f8af7a313f70 - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jffs2: se corrige la pérdida de memoria en jffs2_do_fill_super Si jffs2_iget() o d_make_root() en jffs2_do_fill_super() devuelve un error, podemos observar el siguiente informe de kmemleak: -------------------------------------------- objeto sin referencia 0xffff888105a65340 (size 64): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmem_cache_alloc_trace+0x475/0x8a0 [] jffs2_sum_init+0x96/0x1a0 [] jffs2_do_mount_fs+0x745/0x2120 [] jffs2_do_fill_super+0x35c/0x810 [] jffs2_fill_super+0x2b9/0x3b0 [...] unreferenced object 0xffff8881bd7f0000 (size 65536): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ backtrace: [] kmalloc_order+0xda/0x110 [] kmalloc_order_trace+0x21/0x130 [] __kmalloc+0x711/0x8a0 [] jffs2_sum_init+0xd9/0x1a0 [] jffs2_do_mount_fs+0x745/0x2120 [] jffs2_do_fill_super+0x35c/0x810 [] jffs2_fill_super+0x2b9/0x3b0 [...] -------------------------------------------- Esto se debe a que los recursos asignados en jffs2_sum_init() no se liberan. Llame a jffs2_sum_exit() para liberar estos recursos y resolver el problema.

26 Feb 2025, 07:01

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-26 07:01

Updated : 2025-04-14 20:38

NVD link : CVE-2022-49381

Mitre link : CVE-2022-49381

CVE.ORG link : CVE-2022-49381

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime