Linux Kernel up to 6.0.7 nfs4 nfs4_set_client+0x1a2/0x2b0 allocation of resources

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4.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.0.7 and classified as problematic. Affected by this issue is the function nfs4_set_client+0x1a2/0x2b0 of the component nfs4. Executing a manipulation can lead to allocation of resources. This vulnerability is handled as CVE-2022-49927. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.0.7 and classified as problematic. This vulnerability affects the function nfs4_set_client+0x1a2/0x2b0 of the component nfs4. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. The impact remains unknown. CVE summarizes:

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: [] nfs4_find_or_create_slot+0x8e/0x130 [] nfs4_realloc_slot_table+0x23f/0x270 [] nfs40_init_client+0x4a/0x90 [] nfs4_init_client+0xce/0x270 [] nfs4_set_client+0x1a2/0x2b0 [] nfs4_create_server+0x300/0x5f0 [] nfs4_try_get_tree+0x65/0x110 [] vfs_get_tree+0x41/0xf0 [] path_mount+0x9b3/0xdd0 [] __x64_sys_mount+0x190/0x1d0 [] do_syscall_64+0x35/0x80 [] entry_SYSCALL_64_after_hwframe+0x46/0xb0

The advisory is available at git.kernel.org. This vulnerability was named CVE-2022-49927 since 05/01/2025. The exploitation appears to be difficult. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 247365 (Linux Distros Unpatched Vulnerability : CVE-2022-49927), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.333, 4.14.299, 4.19.265, 5.4.224, 5.10.154, 5.15.78 or 6.0.8 eliminates this vulnerability. Applying the patch 84b5cb476903003ae9ca88f32b57ff0eaefa6d4c/aae35a0c8a775fa4afa6a4e7dab3f936f1f89bbb/86ce0e93cf6fb4d0c447323ac66577c642628b9d/925cb538bd5851154602818dc80bf4b4d924c127/45aea4fbf61e205649c29200726b9f45c1718a67/24641993a7dce6b1628645f4e1d97ca06c9f765d/db333ae981fb8843c383aa7dbf62cc682597d401/7e8436728e22181c3f12a5dbabd35ed3a8b8c593 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (247365) and CERT Bund (WID-SEC-2025-0922). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

• Google Container-Optimized OS
• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• RESF Rocky Linux
• Dell Avamar
• Open Source Linux Kernel
• IBM DataPower Gateway
• Dell NetWorker
• Dell Secure Connect Gateway

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.9.332
• 4.14.298
• 4.19.264
• 5.4.223
• 5.10.153
• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 5.15.15
• 5.15.16
• 5.15.17
• 5.15.18
• 5.15.19
• 5.15.20
• 5.15.21
• 5.15.22
• 5.15.23
• 5.15.24
• 5.15.25
• 5.15.26
• 5.15.27
• 5.15.28
• 5.15.29
• 5.15.30
• 5.15.31
• 5.15.32
• 5.15.33
• 5.15.34
• 5.15.35
• 5.15.36
• 5.15.37
• 5.15.38
• 5.15.39
• 5.15.40
• 5.15.41
• 5.15.42
• 5.15.43
• 5.15.44
• 5.15.45
• 5.15.46
• 5.15.47
• 5.15.48
• 5.15.49
• 5.15.50
• 5.15.51
• 5.15.52
• 5.15.53
• 5.15.54
• 5.15.55
• 5.15.56
• 5.15.57
• 5.15.58
• 5.15.59
• 5.15.60
• 5.15.61
• 5.15.62
• 5.15.63
• 5.15.64
• 5.15.65
• 5.15.66
• 5.15.67
• 5.15.68
• 5.15.69
• 5.15.70
• 5.15.71
• 5.15.72
• 5.15.73
• 5.15.74
• 5.15.75
• 5.15.76
• 5.15.77
• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.0.5
• 6.0.6
• 6.0.7

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

• 🔍
• 🔍
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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 247365
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-49927

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.9.333/4.14.299/4.19.265/5.4.224/5.10.154/5.15.78/6.0.8
Patch: 84b5cb476903003ae9ca88f32b57ff0eaefa6d4c/aae35a0c8a775fa4afa6a4e7dab3f936f1f89bbb/86ce0e93cf6fb4d0c447323ac66577c642628b9d/925cb538bd5851154602818dc80bf4b4d924c127/45aea4fbf61e205649c29200726b9f45c1718a67/24641993a7dce6b1628645f4e1d97ca06c9f765d/db333ae981fb8843c383aa7dbf62cc682597d401/7e8436728e22181c3f12a5dbabd35ed3a8b8c593

Timelineinfo

05/01/2025 🔍
05/01/2025 +0 days 🔍
05/01/2025 +0 days 🔍
03/15/2026 +318 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49927 (🔍)
GCVE (CVE): GCVE-0-2022-49927
GCVE (VulDB): GCVE-100-307066
CERT Bund: WID-SEC-2025-0922 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/01/2025 19:04
Updated: 03/15/2026 03:32
Changes: 05/01/2025 19:04 (58), 07/27/2025 22:31 (7), 08/11/2025 01:25 (2), 10/01/2025 18:17 (12), 01/31/2026 19:58 (1), 03/15/2026 03:32 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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