{"id":"CVE-2023-53594","summary":"driver core: fix resource leak in device_add()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: fix resource leak in device_add()\n\nWhen calling kobject_add() failed in device_add(), it will call\ncleanup_glue_dir() to free resource. But in kobject_add(),\ndev-\u003ekobj.parent has been set to NULL. This will cause resource leak.\n\nThe process is as follows:\ndevice_add()\n\tget_device_parent()\n\t\tclass_dir_create_and_add()\n\t\t\tkobject_add()\t\t//kobject_get()\n\t...\n\tdev-\u003ekobj.parent = kobj;\n\t...\n\tkobject_add()\t\t//failed, but set dev-\u003ekobj.parent = NULL\n\t...\n\tglue_dir = get_glue_dir(dev)\t//glue_dir = NULL, and goto\n\t\t\t\t\t//\"Error\" label\n\t...\n\tcleanup_glue_dir()\t//becaues glue_dir is NULL, not call\n\t\t\t\t//kobject_put()\n\nThe preceding problem may cause insmod mac80211_hwsim.ko to failed.\nsysfs: cannot create duplicate filename '/devices/virtual/mac80211_hwsim'\nCall Trace:\n\u003cTASK\u003e\ndump_stack_lvl+0x8e/0xd1\nsysfs_warn_dup.cold+0x1c/0x29\nsysfs_create_dir_ns+0x224/0x280\nkobject_add_internal+0x2aa/0x880\nkobject_add+0x135/0x1a0\nget_device_parent+0x3d7/0x590\ndevice_add+0x2aa/0x1cb0\ndevice_create_groups_vargs+0x1eb/0x260\ndevice_create+0xdc/0x110\nmac80211_hwsim_new_radio+0x31e/0x4790 [mac80211_hwsim]\ninit_mac80211_hwsim+0x48d/0x1000 [mac80211_hwsim]\ndo_one_initcall+0x10f/0x630\ndo_init_module+0x19f/0x5e0\nload_module+0x64b7/0x6eb0\n__do_sys_finit_module+0x140/0x200\ndo_syscall_64+0x35/0x80\nentry_SYSCALL_64_after_hwframe+0x46/0xb0\n\u003c/TASK\u003e\nkobject_add_internal failed for mac80211_hwsim with -EEXIST, don't try to\nregister things with the same name in the same directory.","modified":"2026-03-20T11:20:36.535863Z","published":"2025-10-04T15:44:07.533Z","related":["SUSE-SU-2025:4111-1","SUSE-SU-2025:4139-1","SUSE-SU-2025:4149-1","SUSE-SU-2025:4189-1","SUSE-SU-2025:4320-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53594.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/6977b1a5d67097eaa4d02b0c126c04cc6e8917c0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8d389e363075c2e1deb84a560686ea92123e4b8b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d1dbff10c6cd3b43457f3efd3c9c4950009635bf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f39d21154db87545d8f0b25d13c326f37cc32239"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53594.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53594"},{"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":"cebf8fd16900fdfd58c0028617944f808f97fe50"},{"fixed":"8d389e363075c2e1deb84a560686ea92123e4b8b"},{"fixed":"d1dbff10c6cd3b43457f3efd3c9c4950009635bf"},{"fixed":"f39d21154db87545d8f0b25d13c326f37cc32239"},{"fixed":"6977b1a5d67097eaa4d02b0c126c04cc6e8917c0"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"e7f6e3c9db4b6f259c89fd05728d024ab32acd71"},{"last_affected":"a93a63333dbdb182b87e8cc99df8b4474f867acb"},{"last_affected":"37de955c11b59050346e530143c20b10b4846527"},{"last_affected":"645897231f960590220144b06d1f994b7eb88326"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53594.json"}}],"schema_version":"1.7.5"}