{"cve":"CVE-2022-50702","nvd":{"published":"2025-12-24T11:15:50.360","modified":"2026-06-17T05:24:01.993","status":"Deferred","description":"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    [<ffffffff8174f19e>] __kmalloc_node_track_caller+0x4e/0x150\n    [<ffffffff81731d53>] kstrdup+0x33/0x60\n    [<ffffffff83a5d421>] kobject_set_name_vargs+0x41/0x110\n    [<ffffffff82d87aab>] dev_set_name+0xab/0xe0\n    [<ffffffff82d91a23>] device_add+0xe3/0x1a80\n    [<ffffffffa0270013>] 0xffffffffa0270013\n    [<ffffffff81001c27>] do_one_initcall+0x87/0x2e0\n    [<ffffffff813739cb>] do_init_module+0x1ab/0x640\n    [<ffffffff81379d20>] load_module+0x5d00/0x77f0\n    [<ffffffff8137bc40>] __do_sys_finit_module+0x110/0x1b0\n    [<ffffffff83c4d505>] do_syscall_64+0x35/0x80\n    [<ffffffff83e0006a>] 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    [<ffffffff8174f19e>] __kmalloc_node_track_caller+0x4e/0x150\n    [<ffffffff81731d53>] kstrdup+0x33/0x60\n    [<ffffffff83a5d421>] kobject_set_name_vargs+0x41/0x110\n    [<ffffffff82d87aab>] dev_set_name+0xab/0xe0\n    [<ffffffff82d91a23>] device_add+0xe3/0x1a80\n    [<ffffffffa0220013>] 0xffffffffa0220013\n    [<ffffffff81001c27>] do_one_initcall+0x87/0x2e0\n    [<ffffffff813739cb>] do_init_module+0x1ab/0x640\n    [<ffffffff81379d20>] load_module+0x5d00/0x77f0\n    [<ffffffff8137bc40>] __do_sys_finit_module+0x110/0x1b0\n    [<ffffffff83c4d505>] do_syscall_64+0x35/0x80\n    [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/337c24d817e28dd454ca22f1063dfad20822426e","https://git.kernel.org/stable/c/586e6fd7d581f987f7d0d2592edf0b26397e783e","https://git.kernel.org/stable/c/5be953e353fe421f2983e1fd37f07fba97edbffc","https://git.kernel.org/stable/c/aeca7ff254843d49a8739f07f7dab1341450111d"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:17:07.138532058+00:00"},"epss":{"cve":"CVE-2022-50702","score":0.002,"percentile":0.09912,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}