CVE-2022-50372

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  3. CVE-2022-50372

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

I

n the Linux kernel, the following vulnerability has been resolved: cifs: Fix memory leak when build ntlmssp negotiate blob failed There is a memory leak when mount cifs: unreferenced object 0xffff888166059600 (size 448): comm "mount.cifs", pid 51391, jiffies 4295596373 (age 330.596s) hex dump (first 32 bytes): fe 53 4d 42 40 00 00 00 00 00 00 00 01 00 82 00 .SMB@........... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000060609a61>] mempool_alloc+0xe1/0x260 [<00000000adfa6c63>] cifs_small_buf_get+0x24/0x60 [<00000000ebb404c7>] __smb2_plain_req_init+0x32/0x460 [<00000000bcf875b4>] SMB2_sess_alloc_buffer+0xa4/0x3f0 [<00000000753a2987>] SMB2_sess_auth_rawntlmssp_negotiate+0xf5/0x480 [<00000000f0c1f4f9>] SMB2_sess_setup+0x253/0x410 [<00000000a8b83303>] cifs_setup_session+0x18f/0x4c0 [<00000000854bd16d>] cifs_get_smb_ses+0xae7/0x13c0 [<000000006cbc43d9>] mount_get_conns+0x7a/0x730 [<000000005922d816>] cifs_mount+0x103/0xd10 [<00000000e33def3b>] cifs_smb3_do_mount+0x1dd/0xc90 [<0000000078034979>] smb3_get_tree+0x1d5/0x300 [<000000004371f980>] vfs_get_tree+0x41/0xf0 [<00000000b670d8a7>] path_mount+0x9b3/0xdd0 [<000000005e839a7d>] __x64_sys_mount+0x190/0x1d0 [<000000009404c3b9>] do_syscall_64+0x35/0x80 When build ntlmssp negotiate blob failed, the session setup request should be freed.

References
Link Resource
https://git.kernel.org/stable/c/30b2d7f8f13664655480d6af45f60270b3eb6736 Patch
https://git.kernel.org/stable/c/fa5a70bdd5e565c8696fb04dfe18a4e8aff4695d Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
History

11 Dec 2025, 15:46

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-401
First Time Linux linux Kernel
Linux
References () https://git.kernel.org/stable/c/30b2d7f8f13664655480d6af45f60270b3eb6736 - () https://git.kernel.org/stable/c/30b2d7f8f13664655480d6af45f60270b3eb6736 - Patch
References () https://git.kernel.org/stable/c/fa5a70bdd5e565c8696fb04dfe18a4e8aff4695d - () https://git.kernel.org/stable/c/fa5a70bdd5e565c8696fb04dfe18a4e8aff4695d - Patch

18 Sep 2025, 13:43

Type Values Removed Values Added
New CVE
Information

Published : 2025-09-17 15:15

Updated : 2026-01-14 19:16

NVD link : CVE-2022-50372

Mitre link : CVE-2022-50372

CVE.ORG link : CVE-2022-50372

JSON object : View

Products Affected

linux

CWE
CWE-401

Missing Release of Memory after Effective Lifetime