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🛡️ CVE-2022-50529 — kernel

🟡 CVSS 5.5 — Medium ✅ No Known Exploit NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

test_firmware: fix memory leak in test_firmware_init()

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

test_firmware: fix memory leak in test_firmware_init()

When misc_register() failed in test_firmware_init(), the memory pointed

by test_fw_config->name is not released. The memory leak information is

as follows:

unreferenced object 0xffff88810a34cb00 (size 32):

comm "insmod", pid 7952, jiffies 4294948236 (age 49.060s)

hex dump (first 32 bytes):

74 65 73 74 2d 66 69 72 6d 77 61 72 65 2e 62 69 test-firmware.bi

6e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 n...............

backtrace:

[<ffffffff81b21fcb>] __kmalloc_node_track_caller+0x4b/0xc0

[<ffffffff81affb96>] kstrndup+0x46/0xc0

[<ffffffffa0403a49>] __test_firmware_config_init+0x29/0x380 [test_firmware]

[<ffffffffa040f068>] 0xffffffffa040f068

[<ffffffff81002c41>] do_one_initcall+0x141/0x780

[<ffffffff816a72c3>] do_init_module+0x1c3/0x630

[<ffffffff816adb9e>] load_module+0x623e/0x76a0

[<ffffffff816af471>] __do_sys_finit_module+0x181/0x240

[<ffffffff89978f99>] do_syscall_64+0x39/0xb0

[<ffffffff89a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: None.
  • Availability impact: High — total loss, or loss the attacker controls.

Affected software

CVE-2022-50529 is recorded against 2 packages.

  • kernel (from 6.1.0 up to 6.1.2)
  • linux-kernel (from 6.1 up to 6.1.2)

Timeline and source

Published on 7 October 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2022-50529 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Medium
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-10-07
Updated 2026-08-20
Modified 2026-08-12

Affected Packages

Software From version Fixed in
kernel 6.1.0 6.1.2
linux-kernel 6.1 6.1.2

References

Similar Threats

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