{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-50342", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-16T16:03:27.881Z", "datePublished": "2025-09-16T16:11:21.665Z", "dateUpdated": "2026-05-11T19:17:34.790Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:17:34.790Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfloppy: Fix memory leak in do_floppy_init()\n\nA memory leak was reported when floppy_alloc_disk() failed in\ndo_floppy_init().\n\nunreferenced object 0xffff888115ed25a0 (size 8):\n comm \"modprobe\", pid 727, jiffies 4295051278 (age 25.529s)\n hex dump (first 8 bytes):\n 00 ac 67 5b 81 88 ff ff ..g[....\n backtrace:\n [<000000007f457abb>] __kmalloc_node+0x4c/0xc0\n [<00000000a87bfa9e>] blk_mq_realloc_tag_set_tags.part.0+0x6f/0x180\n [<000000006f02e8b1>] blk_mq_alloc_tag_set+0x573/0x1130\n [<0000000066007fd7>] 0xffffffffc06b8b08\n [<0000000081f5ac40>] do_one_initcall+0xd0/0x4f0\n [<00000000e26d04ee>] do_init_module+0x1a4/0x680\n [<000000001bb22407>] load_module+0x6249/0x7110\n [<00000000ad31ac4d>] __do_sys_finit_module+0x140/0x200\n [<000000007bddca46>] do_syscall_64+0x35/0x80\n [<00000000b5afec39>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\nunreferenced object 0xffff88810fc30540 (size 32):\n comm \"modprobe\", pid 727, jiffies 4295051278 (age 25.529s)\n hex dump (first 32 bytes):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [<000000007f457abb>] __kmalloc_node+0x4c/0xc0\n [<000000006b91eab4>] blk_mq_alloc_tag_set+0x393/0x1130\n [<0000000066007fd7>] 0xffffffffc06b8b08\n [<0000000081f5ac40>] do_one_initcall+0xd0/0x4f0\n [<00000000e26d04ee>] do_init_module+0x1a4/0x680\n [<000000001bb22407>] load_module+0x6249/0x7110\n [<00000000ad31ac4d>] __do_sys_finit_module+0x140/0x200\n [<000000007bddca46>] do_syscall_64+0x35/0x80\n [<00000000b5afec39>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nIf the floppy_alloc_disk() failed, disks of current drive will not be set,\nthus the lastest allocated set->tag cannot be freed in the error handling\npath. A simple call graph shown as below:\n\n floppy_module_init()\n floppy_init()\n do_floppy_init()\n for (drive = 0; drive < N_DRIVE; drive++)\n blk_mq_alloc_tag_set()\n blk_mq_alloc_tag_set_tags()\n blk_mq_realloc_tag_set_tags() # set->tag allocated\n floppy_alloc_disk()\n blk_mq_alloc_disk() # error occurred, disks failed to allocated\n\n ->out_put_disk:\n for (drive = 0; drive < N_DRIVE; drive++)\n if (!disks[drive][0]) # the last disks is not set and loop break\n break;\n blk_mq_free_tag_set() # the latest allocated set->tag leaked\n\nFix this problem by free the set->tag of current drive before jump to\nerror handling path.\n\n[efremov: added stable list, changed title]" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/block/floppy.c" ], "versions": [ { "version": "302cfee150291c6cd85b1ca197d062d0b423d09c", "lessThan": "f36d8c8651506aea5f09899f5356ece5d1384f50", "status": "affected", "versionType": "git" }, { "version": "302cfee150291c6cd85b1ca197d062d0b423d09c", "lessThan": "75d8c8851a4da0190c2480e84315b5fd3d0356c5", "status": "affected", "versionType": "git" }, { "version": "302cfee150291c6cd85b1ca197d062d0b423d09c", "lessThan": "55b3c66a0d441cd37154ae95e44d0b82ccfd580e", "status": "affected", "versionType": "git" }, { "version": "302cfee150291c6cd85b1ca197d062d0b423d09c", "lessThan": "f8ace2e304c5dd8a7328db9cd2b8a4b1b98d83ec", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/block/floppy.c" ], "versions": [ { "version": "5.11", "status": "affected" }, { "version": "0", "lessThan": "5.11", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.86", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.2", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "5.15.86" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.0.16" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.1.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f36d8c8651506aea5f09899f5356ece5d1384f50" }, { "url": "https://git.kernel.org/stable/c/75d8c8851a4da0190c2480e84315b5fd3d0356c5" }, { "url": "https://git.kernel.org/stable/c/55b3c66a0d441cd37154ae95e44d0b82ccfd580e" }, { "url": "https://git.kernel.org/stable/c/f8ace2e304c5dd8a7328db9cd2b8a4b1b98d83ec" } ], "title": "floppy: Fix memory leak in do_floppy_init()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2022-50342", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2026-01-14T18:20:06.449961Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-401", "description": "CWE-401 Missing Release of Memory after Effective Lifetime" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T18:22:57.872Z" } } ] } }