Executive Summary

Informations
Name CVE-2022-49381 First vendor Publication 2025-02-26
Vendor Cve Last vendor Modification 2025-04-14

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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:
[] 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
[...] --------------------------------------------

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49381

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-401 Failure to Release Memory Before Removing Last Reference ('Memory Leak')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3539

Sources (Detail)

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

Alert History

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Date Informations
2025-06-26 02:09:38
  • Multiple Updates
2025-06-25 12:22:28
  • Multiple Updates
2025-06-24 02:14:14
  • Multiple Updates
2025-05-27 02:10:40
  • Multiple Updates
2025-02-26 17:20:31
  • First insertion