{"id":"CVE-2022-50269","summary":"drm/vkms: Fix memory leak in vkms_init()","details":"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    [\u003c00000000e7561ff8\u003e] kmalloc_trace+0x27/0x60\n    [\u003c000000000b1954a0\u003e] 0xffffffffc45200a9\n    [\u003c00000000abbf1da0\u003e] do_one_initcall+0xd0/0x4f0\n    [\u003c000000001505ee87\u003e] do_init_module+0x1a4/0x680\n    [\u003c00000000958079ad\u003e] load_module+0x6249/0x7110\n    [\u003c00000000117e4696\u003e] __do_sys_finit_module+0x140/0x200\n    [\u003c00000000f74b12d2\u003e] do_syscall_64+0x35/0x80\n    [\u003c000000008fc6fcde\u003e] 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.","modified":"2026-04-02T08:28:22.241143Z","published":"2025-09-15T14:21:05.485Z","related":["SUSE-SU-2025:03615-1","SUSE-SU-2025:03628-1","SUSE-SU-2025:3716-1","SUSE-SU-2025:3761-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50269.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/07ab77154d6fd2d67e465ab5ce30083709950f02"},{"type":"WEB","url":"https://git.kernel.org/stable/c/0d0b368b9d104b437e1f4850ae94bdb9a3601e89"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bad13de764888b765ceaa4668893b52bd16653cc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bebd60ec3bf21062f103e32e6203c6daabdbd51b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50269.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50269"},{"type":"PACKAGE","url":"https://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":"2df7af93fdadb9ba8226fe443fae15ecdefda2a6"},{"fixed":"bad13de764888b765ceaa4668893b52bd16653cc"},{"fixed":"bebd60ec3bf21062f103e32e6203c6daabdbd51b"},{"fixed":"07ab77154d6fd2d67e465ab5ce30083709950f02"},{"fixed":"0d0b368b9d104b437e1f4850ae94bdb9a3601e89"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50269.json"}}],"schema_version":"1.7.5"}