{"id":"CVE-2022-50304","title":"mtd: core: fix possible resource leak in init_mtd()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: core: fix possible resource leak in init_mtd()\n\nI got the error report while inject fault in init_mtd():\n\nsysfs: cannot create duplicate filename '/devices/virtual…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 445caaa20c4d6da74f426464f90513b81157ad77 < 78816504100cbd8e6836df9f58cc4fbb8b262f1c","Linux >= 445caaa20c4d6da74f426464f90513b81157ad77 < 26c304a3f136009c5a2a04e2bf3ac6aa25aabcb4","Linux >= 445caaa20c4d6da74f426464f90513b81157ad77 < 1aadf01e5076b9ab6bf294b9622335c651314895","Linux 4.10"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:09:17.431370Z"},"published":"2025-09-15","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:10:33.759Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2022-50304","references":[{"url":"https://git.kernel.org/stable/c/78816504100cbd8e6836df9f58cc4fbb8b262f1c"},{"url":"https://git.kernel.org/stable/c/26c304a3f136009c5a2a04e2bf3ac6aa25aabcb4"},{"url":"https://git.kernel.org/stable/c/1aadf01e5076b9ab6bf294b9622335c651314895"}],"tags":["cve.org"],"epss":0.00157,"epssPercentile":0.0491,"ingestedAt":"2026-11-05T22:38:31.722Z","slug":"CVE-2022-50304","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmtd: core: fix possible resource leak in init_mtd()\n\nI got the error report while inject fault in init_mtd():\n\nsysfs: cannot create duplicate filename '/devices/virtual/bdi/mtd-0'\nCall Trace:\n <TASK>\n dump_stack_lvl+0x67/0x83\n sysfs_warn_dup+0x60/0x70\n sysfs_create_dir_ns+0x109/0x120\n kobject_add_internal+0xce/0x2f0\n kobject_add+0x98/0x110\n device_add+0x179/0xc00\n device_create_groups_vargs+0xf4/0x100\n device_create+0x7b/0xb0\n bdi_register_va.part.13+0x58/0x2d0\n bdi_register+0x9b/0xb0\n init_mtd+0x62/0x171 [mtd]\n do_one_initcall+0x6c/0x3c0\n do_init_module+0x58/0x222\n load_module+0x268e/0x27d0\n __do_sys_finit_module+0xd5/0x140\n do_syscall_64+0x37/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n </TASK>\nkobject_add_internal failed for mtd-0 with -EEXIST, don't try to register\n\tthings with the same name in the same directory.\nError registering mtd class or bdi: -17\n\nIf init_mtdchar() fails in init_mtd(), mtd_bdi will not be unregistered,\nas a result, we can't load the mtd module again, to fix this by calling\nbdi_unregister(mtd_bdi) after out_procfs label.\n\n## Affected\n\n- `Linux >= 445caaa20c4d6da74f426464f90513b81157ad77 < 78816504100cbd8e6836df9f58cc4fbb8b262f1c`\n- `Linux >= 445caaa20c4d6da74f426464f90513b81157ad77 < 26c304a3f136009c5a2a04e2bf3ac6aa25aabcb4`\n- `Linux >= 445caaa20c4d6da74f426464f90513b81157ad77 < 1aadf01e5076b9ab6bf294b9622335c651314895`\n- `Linux 4.10`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}