CVE-2022-50269
Full vulnerability record from the local CVENow database.
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.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-09-15 15:15:37.707000
Last modified
2026-11-05 20:17:31.020000
View original CVE JSON
{
"id": "CVE-2022-50269",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-09-15T15:15:37.707",
"lastModified": "2026-11-05T20:17:31.020",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vkms: Fix memory leak in vkms_init()\n\nA memory leak was reported after the vkms module install failed.\n\nunreferenced object 0xffff88810bc28520 (size 16):\n comm \"modprobe\", pid 9662, jiffies 4298009455 (age 42.590s)\n hex dump (first 16 bytes):\n 01 01 00 64 81 88 ff ff 00 00 dc 0a 81 88 ff ff ...d............\n backtrace:\n [<00000000e7561ff8>] kmalloc_trace+0x27/0x60\n [<000000000b1954a0>] 0xffffffffc45200a9\n [<00000000abbf1da0>] do_one_initcall+0xd0/0x4f0\n [<000000001505ee87>] do_init_module+0x1a4/0x680\n [<00000000958079ad>] load_module+0x6249/0x7110\n [<00000000117e4696>] __do_sys_finit_module+0x140/0x200\n [<00000000f74b12d2>] do_syscall_64+0x35/0x80\n [<000000008fc6fcde>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nThe reason is that the vkms_init() returns without checking the return\nvalue of vkms_create(), and if the vkms_create() failed, the config\nallocated at the beginning of vkms_init() is leaked.\n\n vkms_init()\n config = kmalloc(...) # config allocated\n ...\n return vkms_create() # vkms_create failed and config is leaked\n\nFix this problem by checking return value of vkms_create() and free the\nconfig if error happened."
}
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"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
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"id": "CVE-2022-50269",
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"source": "[email protected]",
"type": "Primary",
"description": [
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"lang": "en",
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