What is CVE-2022-50566?

CVE-2022-50566 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 2.6.30 onward and patched in 4.9.337, 4.14.303, 4.19.270 and others. CVE-2022-50566 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50566?

CVE-2022-50566 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2022-50566?

Yes, CVE-2022-50566 has been patched. Fixed versions include 4.9.337, 4.14.303, 4.19.270 and others. If you are running Linux kernel 2.6.30 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50566 actively exploited?

CVE-2022-50566 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-50566

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.

Package Linux Kernel

Published 2025-10-22

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 2.6.30 and later are affected. Fixed in 4.9.337, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2 and their respective stable series.

Affected from

≥ 2.6.30

Fixed in

✓ 4.9.337 4.9.x ✓ 4.14.303 4.14.x ✓ 4.19.270 4.19.x ✓ 5.4.229 5.4.x ✓ 5.10.163 5.10.x ✓ 5.15.86 5.15.x ✓ 6.0.16 6.0.x ✓ 6.1.2 6.1.x ✓ 6.2

References

The following references provide additional information about CVE-2022-50566 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/1b172fb05d6315ecec082fd7544a3390e96f0d7e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/2302e2dc42b1f84f951c725ce742fc21c5a1e151
Patch
Kernel patch commit
https://git.kernel.org/stable/c/330bc5533e8a8ed69cb951d5a8edce9bddb9db21
Patch

9 patch commits total View all on NVD

Frequently asked questions

What is CVE-2022-50566?

CVE-2022-50566 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.30 onward and has been patched in 4.9.337, 4.14.303, 4.19.270 and others. CVE-2022-50566 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2022-50566?

Yes — CVE-2022-50566 has been patched. Fixed versions include 4.9.337, 4.14.303, 4.19.270 and others. If you are running Linux kernel 2.6.30 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50566 actively exploited?

No — CVE-2022-50566 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.