Executive Summary

Informations
Name CVE-2022-49277 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_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:
[] 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
[...] 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:
[] __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
[...] --------------------------------------------

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-2022-49277

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 7
Os 3527

Sources (Detail)

https://git.kernel.org/stable/c/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9
https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834
https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88
https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699
https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca
https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699
https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af
https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c
https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112
Source Url

Alert History

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Date Informations
2025-06-26 02:09:27
  • Multiple Updates
2025-06-25 12:22:18
  • Multiple Updates
2025-06-24 02:14:03
  • Multiple Updates
2025-05-27 02:09:41
  • Multiple Updates
2025-02-26 17:20:32
  • First insertion