Executive Summary

Informations
Name CVE-2022-49927 First vendor Publication 2025-05-01
Vendor Cve Last vendor Modification 2025-05-07

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:

nfs4: Fix kmemleak when allocate slot failed

If one of the slot allocate failed, should cleanup all the other allocated slots, otherwise, the allocated slots will leak:

unreferenced object 0xffff8881115aa100 (size 64):
comm ""mount.nfs"", pid 679, jiffies 4294744957 (age 115.037s)
hex dump (first 32 bytes):
00 cc 19 73 81 88 ff ff 00 a0 5a 11 81 88 ff ff ...s......Z.....
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000007a4c434a>] nfs4_find_or_create_slot+0x8e/0x130
[<000000005472a39c>] nfs4_realloc_slot_table+0x23f/0x270
[<00000000cd8ca0eb>] nfs40_init_client+0x4a/0x90
[<00000000128486db>] nfs4_init_client+0xce/0x270
[<000000008d2cacad>] nfs4_set_client+0x1a2/0x2b0
[<000000000e593b52>] nfs4_create_server+0x300/0x5f0
[<00000000e4425dd2>] nfs4_try_get_tree+0x65/0x110
[<00000000d3a6176f>] vfs_get_tree+0x41/0xf0
[<0000000016b5ad4c>] path_mount+0x9b3/0xdd0
[<00000000494cae71>] __x64_sys_mount+0x190/0x1d0
[<000000005d56bdec>] do_syscall_64+0x35/0x80
[<00000000687c9ae4>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49927

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 3562

Sources (Detail)

https://git.kernel.org/stable/c/24641993a7dce6b1628645f4e1d97ca06c9f765d
https://git.kernel.org/stable/c/45aea4fbf61e205649c29200726b9f45c1718a67
https://git.kernel.org/stable/c/7e8436728e22181c3f12a5dbabd35ed3a8b8c593
https://git.kernel.org/stable/c/84b5cb476903003ae9ca88f32b57ff0eaefa6d4c
https://git.kernel.org/stable/c/86ce0e93cf6fb4d0c447323ac66577c642628b9d
https://git.kernel.org/stable/c/925cb538bd5851154602818dc80bf4b4d924c127
https://git.kernel.org/stable/c/aae35a0c8a775fa4afa6a4e7dab3f936f1f89bbb
https://git.kernel.org/stable/c/db333ae981fb8843c383aa7dbf62cc682597d401
Source Url

Alert History

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Date Informations
2025-06-24 02:15:08
  • Multiple Updates
2025-05-27 13:24:10
  • Multiple Updates
2025-05-27 02:13:24
  • First insertion