CVE-2022-49277

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49277
In the Linux kernel, the following vulnerability has been resolved: jffs2: fix memory leak in jffs2_do_mount_fs If jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error, we can observe the following kmemleak report: -------------------------------------------- unreferenced object 0xffff88811b25a640 (size 64): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) 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: [<ffffffffa493be24>] kmem_cache_alloc_trace+0x584/0x880 [<ffffffffa5423a06>] jffs2_sum_init+0x86/0x130 [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0 [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30 [<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0 [...] unreferenced object 0xffff88812c760000 (size 65536): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) 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: [<ffffffffa493a449>] __kmalloc+0x6b9/0x910 [<ffffffffa5423a57>] jffs2_sum_init+0xd7/0x130 [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0 [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30 [<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0 [...] -------------------------------------------- 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/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9 Patch
https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834 Patch
https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88 Patch
https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699 Patch
https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca Patch
https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699 Patch
https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af Patch
https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c Patch
https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112 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, 17:09

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jffs2: se corrige la pérdida de memoria en jffs2_do_mount_fs Si jffs2_build_filesystem() en jffs2_do_mount_fs() devuelve un error, podemos observar el siguiente informe de kmemleak: -------------------------------------------- objeto sin referencia 0xffff88811b25a640 (tamaño 64): comm "mount", pid 691, jiffies 4294957728 (edad 71,952 s) volcado hexadecimal (primeros 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 ................ seguimiento inverso: [] kmem_cache_alloc_trace+0x584/0x880 [] jffs2_sum_init+0x86/0x130 [] jffs2_do_mount_fs+0x798/0xac0 [] jffs2_do_fill_super+0x383/0xc30 [] jffs2_fill_super+0x2ea/0x4c0 [...] objeto sin referencia 0xffff88812c760000 (tamaño 65536): comm "montar", pid 691, jiffies 4294957728 (edad 71,952 s) volcado hexadecimal (primeros 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 ................ seguimiento inverso: [] __kmalloc+0x6b9/0x910 [] jffs2_sum_init+0xd7/0x130 [] jffs2_do_mount_fs+0x798/0xac0 [] jffs2_do_fill_super+0x383/0xc30 [] jffs2_fill_super+0x2ea/0x4c0 [...] -------------------------------------------- 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.
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
CWE CWE-401
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9 - () https://git.kernel.org/stable/c/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9 - Patch
References () https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834 - () https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834 - Patch
References () https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88 - () https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88 - Patch
References () https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699 - () https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699 - Patch
References () https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca - () https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca - Patch
References () https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699 - () https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699 - Patch
References () https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af - () https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af - Patch
References () https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c - () https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c - Patch
References () https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112 - () https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112 - Patch

26 Feb 2025, 07:01

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-26 07:01

Updated : 2025-04-14 17:09

NVD link : CVE-2022-49277

Mitre link : CVE-2022-49277

CVE.ORG link : CVE-2022-49277

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime