{"id":"CVE-2022-50566","state":"PUBLISHED","title":"mtd: Fix device name leak when register device failed in add_mtd_device()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: Fix device name leak when register device failed in add_mtd_device()\n\nThere is a kmemleak when register device failed:\n  unreferenced object 0xffff888101aab550 (size 8):\n    comm \"insmod\", pid 3922, jiffies 4295277753 (age 925.408s)\n    hex dump (first 8 bytes):\n      6d 74 64 30 00 88 ff ff                          mtd0....\n    backtrace:\n      [<00000000bde26724>] __kmalloc_node_track_caller+0x4e/0x150\n      [<000000003c32b416>] kvasprintf+0xb0/0x130\n      [<000000001f7a8f15>] kobject_set_name_vargs+0x2f/0xb0\n      [<000000006e781163>] dev_set_name+0xab/0xe0\n      [<00000000e30d0c78>] add_mtd_device+0x4bb/0x700\n      [<00000000f3d34de7>] mtd_device_parse_register+0x2ac/0x3f0\n      [<00000000c0d88488>] 0xffffffffa0238457\n      [<00000000b40d0922>] 0xffffffffa02a008f\n      [<0000000023d17b9d>] do_one_initcall+0x87/0x2a0\n      [<00000000770f6ca6>] do_init_module+0xdf/0x320\n      [<000000007b6768fe>] load_module+0x2f98/0x3330\n      [<00000000346bed5a>] __do_sys_finit_module+0x113/0x1b0\n      [<00000000674c2290>] do_syscall_64+0x35/0x80\n      [<000000004c6a8d97>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nIf register device failed, should call put_device() to give up the\nreference.","publishedAt":"2025-10-22T13:23:23.917Z","updatedAt":"2026-05-11T19:21:54.056Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"a75f45afa932bfb24a2603ebcea5efd2e7cdcfd6","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"2302e2dc42b1f84f951c725ce742fc21c5a1e151","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"db07fe76df01f40cb897d6e9066b84e46957beb3","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"fa0d32ab8407d7481450c664fd0de64f2dae9489","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"330bc5533e8a8ed69cb951d5a8edce9bddb9db21","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"71212d73184845c944ef1b43f092e643e5bde003","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"1b172fb05d6315ecec082fd7544a3390e96f0d7e","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"bcabe1dc2a344adbb3382930a23e273ba9382277","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"895d68a39481a75c680aa421546931fb11942fa6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/mtdcore.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","versionType":"semver"},{"version":"4.9.337","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.303","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.270","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/mtdcore.c"]}],"references":["https://git.kernel.org/stable/c/a75f45afa932bfb24a2603ebcea5efd2e7cdcfd6","https://git.kernel.org/stable/c/2302e2dc42b1f84f951c725ce742fc21c5a1e151","https://git.kernel.org/stable/c/db07fe76df01f40cb897d6e9066b84e46957beb3","https://git.kernel.org/stable/c/fa0d32ab8407d7481450c664fd0de64f2dae9489","https://git.kernel.org/stable/c/330bc5533e8a8ed69cb951d5a8edce9bddb9db21","https://git.kernel.org/stable/c/71212d73184845c944ef1b43f092e643e5bde003","https://git.kernel.org/stable/c/1b172fb05d6315ecec082fd7544a3390e96f0d7e","https://git.kernel.org/stable/c/bcabe1dc2a344adbb3382930a23e273ba9382277","https://git.kernel.org/stable/c/895d68a39481a75c680aa421546931fb11942fa6"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50566.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50566","state":"PUBLISHED","datePublished":"2025-10-22T13:23:23.917Z","dateUpdated":"2026-05-11T19:21:54.056Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-10-22T13:20:23.760Z"},"containers":{"cna":{"title":"mtd: Fix device name leak when register device failed in add_mtd_device()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: Fix device name leak when register device failed in add_mtd_device()\n\nThere is a kmemleak when register device failed:\n  unreferenced object 0xffff888101aab550 (size 8):\n    comm \"insmod\", pid 3922, jiffies 4295277753 (age 925.408s)\n    hex dump (first 8 bytes):\n      6d 74 64 30 00 88 ff ff                          mtd0....\n    backtrace:\n      [<00000000bde26724>] __kmalloc_node_track_caller+0x4e/0x150\n      [<000000003c32b416>] kvasprintf+0xb0/0x130\n      [<000000001f7a8f15>] kobject_set_name_vargs+0x2f/0xb0\n      [<000000006e781163>] dev_set_name+0xab/0xe0\n      [<00000000e30d0c78>] add_mtd_device+0x4bb/0x700\n      [<00000000f3d34de7>] mtd_device_parse_register+0x2ac/0x3f0\n      [<00000000c0d88488>] 0xffffffffa0238457\n      [<00000000b40d0922>] 0xffffffffa02a008f\n      [<0000000023d17b9d>] do_one_initcall+0x87/0x2a0\n      [<00000000770f6ca6>] do_init_module+0xdf/0x320\n      [<000000007b6768fe>] load_module+0x2f98/0x3330\n      [<00000000346bed5a>] __do_sys_finit_module+0x113/0x1b0\n      [<00000000674c2290>] do_syscall_64+0x35/0x80\n      [<000000004c6a8d97>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nIf register device failed, should call put_device() to give up the\nreference."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"a75f45afa932bfb24a2603ebcea5efd2e7cdcfd6","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"2302e2dc42b1f84f951c725ce742fc21c5a1e151","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"db07fe76df01f40cb897d6e9066b84e46957beb3","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"fa0d32ab8407d7481450c664fd0de64f2dae9489","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"330bc5533e8a8ed69cb951d5a8edce9bddb9db21","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"71212d73184845c944ef1b43f092e643e5bde003","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"1b172fb05d6315ecec082fd7544a3390e96f0d7e","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"bcabe1dc2a344adbb3382930a23e273ba9382277","versionType":"git"},{"version":"1f24b5a8ecbb2a3c7080f418974d40e3ffedb221","status":"affected","lessThan":"895d68a39481a75c680aa421546931fb11942fa6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/mtdcore.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","versionType":"semver"},{"version":"4.9.337","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.303","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.270","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/mtdcore.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a75f45afa932bfb24a2603ebcea5efd2e7cdcfd6"},{"url":"https://git.kernel.org/stable/c/2302e2dc42b1f84f951c725ce742fc21c5a1e151"},{"url":"https://git.kernel.org/stable/c/db07fe76df01f40cb897d6e9066b84e46957beb3"},{"url":"https://git.kernel.org/stable/c/fa0d32ab8407d7481450c664fd0de64f2dae9489"},{"url":"https://git.kernel.org/stable/c/330bc5533e8a8ed69cb951d5a8edce9bddb9db21"},{"url":"https://git.kernel.org/stable/c/71212d73184845c944ef1b43f092e643e5bde003"},{"url":"https://git.kernel.org/stable/c/1b172fb05d6315ecec082fd7544a3390e96f0d7e"},{"url":"https://git.kernel.org/stable/c/bcabe1dc2a344adbb3382930a23e273ba9382277"},{"url":"https://git.kernel.org/stable/c/895d68a39481a75c680aa421546931fb11942fa6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:21:54.056Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"4.9.337"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"4.14.303"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"4.19.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.4.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.15.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.2"}]}]}],"x_generator":{"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