In the Linux kernel, the following vulnerability has been resolved:

mtd: Fix device name leak when register device failed in add_mtd_device()

There is a kmemleak when register device failed:
unreferenced object 0xffff888101aab550 (size 8):
comm "insmod", pid 3922, jiffies 4295277753 (age 925.408s)
hex dump (first 8 bytes):
6d 74 64 30 00 88 ff ff mtd0....
backtrace:
[<00000000bde26724>] __kmalloc_node_track_caller+0x4e/0x150
[<000000003c32b416>] kvasprintf+0xb0/0x130
[<000000001f7a8f15>] kobject_set_name_vargs+0x2f/0xb0
[<000000006e781163>] dev_set_name+0xab/0xe0
[<00000000e30d0c78>] add_mtd_device+0x4bb/0x700
[<00000000f3d34de7>] mtd_device_parse_register+0x2ac/0x3f0
[<00000000c0d88488>] 0xffffffffa0238457
[<00000000b40d0922>] 0xffffffffa02a008f
[<0000000023d17b9d>] do_one_initcall+0x87/0x2a0
[<00000000770f6ca6>] do_init_module+0xdf/0x320
[<000000007b6768fe>] load_module+0x2f98/0x3330
[<00000000346bed5a>] __do_sys_finit_module+0x113/0x1b0
[<00000000674c2290>] do_syscall_64+0x35/0x80
[<000000004c6a8d97>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

If register device failed, should call put_device() to give up the
reference.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/1b172fb05d6315ecec082fd7544a3390e96f0d7e cve-icon cve-icon
https://git.kernel.org/stable/c/2302e2dc42b1f84f951c725ce742fc21c5a1e151 cve-icon cve-icon
https://git.kernel.org/stable/c/330bc5533e8a8ed69cb951d5a8edce9bddb9db21 cve-icon cve-icon
https://git.kernel.org/stable/c/71212d73184845c944ef1b43f092e643e5bde003 cve-icon cve-icon
https://git.kernel.org/stable/c/895d68a39481a75c680aa421546931fb11942fa6 cve-icon cve-icon
https://git.kernel.org/stable/c/a75f45afa932bfb24a2603ebcea5efd2e7cdcfd6 cve-icon cve-icon
https://git.kernel.org/stable/c/bcabe1dc2a344adbb3382930a23e273ba9382277 cve-icon cve-icon
https://git.kernel.org/stable/c/db07fe76df01f40cb897d6e9066b84e46957beb3 cve-icon cve-icon
https://git.kernel.org/stable/c/fa0d32ab8407d7481450c664fd0de64f2dae9489 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025102207-CVE-2022-50566-9cd3@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50566 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50566 cve-icon
History

Thu, 23 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Wed, 22 Oct 2025 13:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: mtd: Fix device name leak when register device failed in add_mtd_device() There is a kmemleak when register device failed: unreferenced object 0xffff888101aab550 (size 8): comm "insmod", pid 3922, jiffies 4295277753 (age 925.408s) hex dump (first 8 bytes): 6d 74 64 30 00 88 ff ff mtd0.... backtrace: [<00000000bde26724>] __kmalloc_node_track_caller+0x4e/0x150 [<000000003c32b416>] kvasprintf+0xb0/0x130 [<000000001f7a8f15>] kobject_set_name_vargs+0x2f/0xb0 [<000000006e781163>] dev_set_name+0xab/0xe0 [<00000000e30d0c78>] add_mtd_device+0x4bb/0x700 [<00000000f3d34de7>] mtd_device_parse_register+0x2ac/0x3f0 [<00000000c0d88488>] 0xffffffffa0238457 [<00000000b40d0922>] 0xffffffffa02a008f [<0000000023d17b9d>] do_one_initcall+0x87/0x2a0 [<00000000770f6ca6>] do_init_module+0xdf/0x320 [<000000007b6768fe>] load_module+0x2f98/0x3330 [<00000000346bed5a>] __do_sys_finit_module+0x113/0x1b0 [<00000000674c2290>] do_syscall_64+0x35/0x80 [<000000004c6a8d97>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 If register device failed, should call put_device() to give up the reference.
Title mtd: Fix device name leak when register device failed in add_mtd_device()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-10-22T13:23:23.917Z

Reserved: 2025-10-22T13:20:23.760Z

Link: CVE-2022-50566

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-22T14:15:41.420

Modified: 2025-10-22T21:12:48.953

Link: CVE-2022-50566

cve-icon Redhat

Severity : Low

Publid Date: 2025-10-22T00:00:00Z

Links: CVE-2022-50566 - Bugzilla

cve-icon OpenCVE Enrichment

No data.