Linux Kernel up to 5.19.1 raid_status out-of-bounds

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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Kernel up to 5.19.1. This impacts the function raid_status. Such manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2022-50084. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.19.1. It has been rated as problematic. Affected by this issue is the function raid_status. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: dm raid: fix address sanitizer warning in raid_status There is this warning when using a kernel with the address sanitizer and running this testsuite: https://gitlab.com/cki-project/kernel-tests/-/tree/main/storage/swraid/scsi_raid ================================================================== BUG: KASAN: slab-out-of-bounds in raid_status+0x1747/0x2820 [dm_raid] Read of size 4 at addr ffff888079d2c7e8 by task lvcreate/13319 CPU: 0 PID: 13319 Comm: lvcreate Not tainted 5.18.0-0.rc3.<snip> #1 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 Call Trace: <TASK> dump_stack_lvl+0x6a/0x9c print_address_description.constprop.0+0x1f/0x1e0 print_report.cold+0x55/0x244 kasan_report+0xc9/0x100 raid_status+0x1747/0x2820 [dm_raid] dm_ima_measure_on_table_load+0x4b8/0xca0 [dm_mod] table_load+0x35c/0x630 [dm_mod] ctl_ioctl+0x411/0x630 [dm_mod] dm_ctl_ioctl+0xa/0x10 [dm_mod] __x64_sys_ioctl+0x12a/0x1a0 do_syscall_64+0x5b/0x80 The warning is caused by reading conf->max_nr_stripes in raid_status. The code in raid_status reads mddev->private, casts it to struct r5conf and reads the entry max_nr_stripes. However, if we have different raid type than 4/5/6, mddev->private doesn't point to struct r5conf; it may point to struct r0conf, struct r1conf, struct r10conf or struct mpconf. If we cast a pointer to one of these structs to struct r5conf, we will be reading invalid memory and KASAN warns about it. Fix this bug by reading struct r5conf only if raid type is 4, 5 or 6.

The weakness was disclosed by Red Hat. The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2022-50084 since 06/18/2025. The exploitation is known to be difficult. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 302405 (EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-1313)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.326, 4.14.291, 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18 or 5.19.2 eliminates this vulnerability. Applying the patch 1ae0ebfb576b72c2ef400917a5484ebe7892d80b/90b006da40dd42285b24dd3c940d2c32aca9a70b/b856ce5f4b55f752144baf17e9d5c415072652c5/cb583ca6125ac64c98e9d65128e95ebb5be7d322/49dba30638e091120256a9e89125340795f034dc/4c233811a49578634d10a5e70a9dfa569d451e94/d8971b595d7adac3421c21f59918241f1574061e/b4c6c07c92b6cba2bf3cb2dfa722debeaf8a8abe/1fbeea217d8f297fe0e0956a1516d14ba97d0396 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 (302405) and CERT Bund (WID-SEC-2025-1350). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Dell Avamar
  • Dell NetWorker
  • Dell Secure Connect Gateway
  • IBM QRadar SIEM

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.8

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 302405
Nessus Name: EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-1313)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.9.326/4.14.291/4.19.256/5.4.211/5.10.137/5.15.61/5.18.18/5.19.2
Patch: 1ae0ebfb576b72c2ef400917a5484ebe7892d80b/90b006da40dd42285b24dd3c940d2c32aca9a70b/b856ce5f4b55f752144baf17e9d5c415072652c5/cb583ca6125ac64c98e9d65128e95ebb5be7d322/49dba30638e091120256a9e89125340795f034dc/4c233811a49578634d10a5e70a9dfa569d451e94/d8971b595d7adac3421c21f59918241f1574061e/b4c6c07c92b6cba2bf3cb2dfa722debeaf8a8abe/1fbeea217d8f297fe0e0956a1516d14ba97d0396

Timelineinfo

06/18/2025 Advisory disclosed
06/18/2025 +0 days CVE reserved
06/18/2025 +0 days VulDB entry created
03/16/2026 +271 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Researcher: Red Hat
Status: Confirmed

CVE: CVE-2022-50084 (🔒)
GCVE (CVE): GCVE-0-2022-50084
GCVE (VulDB): GCVE-100-312992
CERT Bund: WID-SEC-2025-1350 - Linux Kernel: Mehrere Schwachstellen erm&ouml;glichen Denial of Service

Entryinfo

Created: 06/18/2025 14:54
Updated: 03/16/2026 21:17
Changes: 06/18/2025 14:54 (59), 10/19/2025 10:07 (7), 11/18/2025 03:46 (13), 11/30/2025 22:52 (1), 03/16/2026 21:17 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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