{"id":"CVE-2022-50702","summary":"vdpa_sim: fix possible memory leak in vdpasim_net_init() and vdpasim_blk_init()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa_sim: fix possible memory leak in vdpasim_net_init() and vdpasim_blk_init()\n\nInject fault while probing module, if device_register() fails in\nvdpasim_net_init() or vdpasim_blk_init(), but the refcount of kobject is\nnot decreased to 0, the name allocated in dev_set_name() is leaked.\nFix this by calling put_device(), so that name can be freed in\ncallback function kobject_cleanup().\n\n(vdpa_sim_net)\nunreferenced object 0xffff88807eebc370 (size 16):\n  comm \"modprobe\", pid 3848, jiffies 4362982860 (age 18.153s)\n  hex dump (first 16 bytes):\n    76 64 70 61 73 69 6d 5f 6e 65 74 00 6b 6b 6b a5  vdpasim_net.kkk.\n  backtrace:\n    [\u003cffffffff8174f19e\u003e] __kmalloc_node_track_caller+0x4e/0x150\n    [\u003cffffffff81731d53\u003e] kstrdup+0x33/0x60\n    [\u003cffffffff83a5d421\u003e] kobject_set_name_vargs+0x41/0x110\n    [\u003cffffffff82d87aab\u003e] dev_set_name+0xab/0xe0\n    [\u003cffffffff82d91a23\u003e] device_add+0xe3/0x1a80\n    [\u003cffffffffa0270013\u003e] 0xffffffffa0270013\n    [\u003cffffffff81001c27\u003e] do_one_initcall+0x87/0x2e0\n    [\u003cffffffff813739cb\u003e] do_init_module+0x1ab/0x640\n    [\u003cffffffff81379d20\u003e] load_module+0x5d00/0x77f0\n    [\u003cffffffff8137bc40\u003e] __do_sys_finit_module+0x110/0x1b0\n    [\u003cffffffff83c4d505\u003e] do_syscall_64+0x35/0x80\n    [\u003cffffffff83e0006a\u003e] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\n(vdpa_sim_blk)\nunreferenced object 0xffff8881070c1250 (size 16):\n  comm \"modprobe\", pid 6844, jiffies 4364069319 (age 17.572s)\n  hex dump (first 16 bytes):\n    76 64 70 61 73 69 6d 5f 62 6c 6b 00 6b 6b 6b a5  vdpasim_blk.kkk.\n  backtrace:\n    [\u003cffffffff8174f19e\u003e] __kmalloc_node_track_caller+0x4e/0x150\n    [\u003cffffffff81731d53\u003e] kstrdup+0x33/0x60\n    [\u003cffffffff83a5d421\u003e] kobject_set_name_vargs+0x41/0x110\n    [\u003cffffffff82d87aab\u003e] dev_set_name+0xab/0xe0\n    [\u003cffffffff82d91a23\u003e] device_add+0xe3/0x1a80\n    [\u003cffffffffa0220013\u003e] 0xffffffffa0220013\n    [\u003cffffffff81001c27\u003e] do_one_initcall+0x87/0x2e0\n    [\u003cffffffff813739cb\u003e] do_init_module+0x1ab/0x640\n    [\u003cffffffff81379d20\u003e] load_module+0x5d00/0x77f0\n    [\u003cffffffff8137bc40\u003e] __do_sys_finit_module+0x110/0x1b0\n    [\u003cffffffff83c4d505\u003e] do_syscall_64+0x35/0x80\n    [\u003cffffffff83e0006a\u003e] entry_SYSCALL_64_after_hwframe+0x46/0xb0","modified":"2026-05-15T04:05:49.572362459Z","published":"2025-12-24T10:55:17.831Z","related":["SUSE-SU-2026:0263-1","SUSE-SU-2026:0317-1","SUSE-SU-2026:0411-1","SUSE-SU-2026:0617-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50702.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/337c24d817e28dd454ca22f1063dfad20822426e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/586e6fd7d581f987f7d0d2592edf0b26397e783e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5be953e353fe421f2983e1fd37f07fba97edbffc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/aeca7ff254843d49a8739f07f7dab1341450111d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50702.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50702"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.12.0"},{"fixed":"5.15.87"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.0.19"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.1.0"},{"fixed":"6.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50702.json"}}],"schema_version":"1.7.5"}