CVE-2022-50269

Advisory lineage Upstream: 0 Downstream: 12
Analyzed
Published: 15 Sept 2025, 14:21
Last modified:11 May 2026, 19:16

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

15 Sept 2025, 14:21
Published
Vulnerability first disclosed
11 May 2026, 19:16
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vkms: Fix memory leak in vkms_init() A memory leak was reported after the vkms module install failed. unreferenced object 0xffff88810bc28520 (size 16): comm "modprobe", pid 9662, jiffies 4298009455 (age 42.590s) hex dump (first 16 bytes): 01 01 00 64 81 88 ff ff 00 00 dc 0a 81 88 ff ff ...d............ backtrace: [<00000000e7561ff8>] kmalloc_trace+0x27/0x60 [<000000000b1954a0>] 0xffffffffc45200a9 [<00000000abbf1da0>] do_one_initcall+0xd0/0x4f0 [<000000001505ee87>] do_init_module+0x1a4/0x680 [<00000000958079ad>] load_module+0x6249/0x7110 [<00000000117e4696>] __do_sys_finit_module+0x140/0x200 [<00000000f74b12d2>] do_syscall_64+0x35/0x80 [<000000008fc6fcde>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 The reason is that the vkms_init() returns without checking the return value of vkms_create(), and if the vkms_create() failed, the config allocated at the beginning of vkms_init() is leaked. vkms_init() config = kmalloc(...) # config allocated ... return vkms_create() # vkms_create failed and config is leaked Fix this problem by checking return value of vkms_create() and free the config if error happened.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 6%

Techniques & Countermeasures

  • CWE-401•Missing Release of Memory after Effective Lifetime

    The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Affected Systems

  • linux•linux

    ≥ 2df7af93fdadb9ba8226fe443fae15ecdefda2a6, < bad13de764888b765ceaa4668893b52bd16653cc | ≥ 2df7af93fdadb9ba8226fe443fae15ecdefda2a6, < bebd60ec3bf21062f103e32e6203c6daabdbd51b | ≥ 2df7af93fdadb9ba8226fe443fae15ecdefda2a6, < 07ab77154d6fd2d67e465ab5ce30083709950f02 | ≥ 2df7af93fdadb9ba8226fe443fae15ecdefda2a6, < 0d0b368b9d104b437e1f4850ae94bdb9a3601e89 | 5.12

  • linux•linux_kernel

    ≥ 5.12, < 5.15.99 | ≥ 5.16, < 6.1.16 | ≥ 6.2, < 6.2.3

References (4)