CVE-2022-50566

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Source
https://cve.org/CVERecord?id=CVE-2022-50566
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50566.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-50566
Downstream
Related
Published
2025-10-22T13:23:23.917Z
Modified
2026-03-20T11:47:31.641124Z
Summary
mtd: Fix device name leak when register device failed in add_mtd_device()
Details

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

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

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>] __kmallocnodetrackcaller+0x4e/0x150 [<000000003c32b416>] kvasprintf+0xb0/0x130 [<000000001f7a8f15>] kobjectsetnamevargs+0x2f/0xb0 [<000000006e781163>] devsetname+0xab/0xe0 [<00000000e30d0c78>] addmtddevice+0x4bb/0x700 [<00000000f3d34de7>] mtddeviceparseregister+0x2ac/0x3f0 [<00000000c0d88488>] 0xffffffffa0238457 [<00000000b40d0922>] 0xffffffffa02a008f [<0000000023d17b9d>] dooneinitcall+0x87/0x2a0 [<00000000770f6ca6>] doinitmodule+0xdf/0x320 [<000000007b6768fe>] loadmodule+0x2f98/0x3330 [<00000000346bed5a>] _dosysfinitmodule+0x113/0x1b0 [<00000000674c2290>] dosyscall64+0x35/0x80 [<000000004c6a8d97>] entrySYSCALL64afterhwframe+0x46/0xb0

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

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50566.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
1f24b5a8ecbb2a3c7080f418974d40e3ffedb221
Fixed
a75f45afa932bfb24a2603ebcea5efd2e7cdcfd6
Fixed
2302e2dc42b1f84f951c725ce742fc21c5a1e151
Fixed
db07fe76df01f40cb897d6e9066b84e46957beb3
Fixed
fa0d32ab8407d7481450c664fd0de64f2dae9489
Fixed
330bc5533e8a8ed69cb951d5a8edce9bddb9db21
Fixed
71212d73184845c944ef1b43f092e643e5bde003
Fixed
1b172fb05d6315ecec082fd7544a3390e96f0d7e
Fixed
bcabe1dc2a344adbb3382930a23e273ba9382277
Fixed
895d68a39481a75c680aa421546931fb11942fa6

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50566.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.6.30
Fixed
4.9.337
Type
ECOSYSTEM
Events
Introduced
4.10.0
Fixed
4.14.303
Type
ECOSYSTEM
Events
Introduced
4.15.0
Fixed
4.19.270
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.229
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.163
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.86
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.0.16
Type
ECOSYSTEM
Events
Introduced
6.1.0
Fixed
6.1.2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50566.json"