{"id":"CVE-2022-49422","state":"PUBLISHED","title":"dmaengine: idxd: Fix the error handling path in idxd_cdev_register()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Fix the error handling path in idxd_cdev_register()\n\nIf a call to alloc_chrdev_region() fails, the already allocated resources\nare leaking.\n\nAdd the needed error handling path to fix the leak.","publishedAt":"2025-02-26T02:12:45.269Z","updatedAt":"2026-05-11T18:59:30.811Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"42d279f9137ab7d5503836baec2739284b278d8f","status":"affected","lessThan":"6073af78156b8c3fc1198f8bcc190b7ac3ac0143","versionType":"git"},{"version":"42d279f9137ab7d5503836baec2739284b278d8f","status":"affected","lessThan":"b3c7b5d08e9d5b2ff31c03078c00ecf11042419f","versionType":"git"},{"version":"42d279f9137ab7d5503836baec2739284b278d8f","status":"affected","lessThan":"5e88561eceb34ae3f88451c2b8e30fe403484189","versionType":"git"},{"version":"42d279f9137ab7d5503836baec2739284b278d8f","status":"affected","lessThan":"c308a2e711a52a47f4b45e7add2b5200169e429a","versionType":"git"},{"version":"42d279f9137ab7d5503836baec2739284b278d8f","status":"affected","lessThan":"aab08c1aac01097815fbcf10fce7021d2396a31f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/idxd/cdev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.6","versionType":"semver"},{"version":"5.10.121","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.46","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.17.14","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18.3","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/idxd/cdev.c"]}],"references":["https://git.kernel.org/stable/c/6073af78156b8c3fc1198f8bcc190b7ac3ac0143","https://git.kernel.org/stable/c/b3c7b5d08e9d5b2ff31c03078c00ecf11042419f","https://git.kernel.org/stable/c/5e88561eceb34ae3f88451c2b8e30fe403484189","https://git.kernel.org/stable/c/c308a2e711a52a47f4b45e7add2b5200169e429a","https://git.kernel.org/stable/c/aab08c1aac01097815fbcf10fce7021d2396a31f"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49422.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49422","state":"PUBLISHED","datePublished":"2025-02-26T02:12:45.269Z","dateUpdated":"2026-05-11T18:59:30.811Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T02:08:31.568Z"},"containers":{"cna":{"title":"dmaengine: idxd: Fix the error handling path in idxd_cdev_register()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Fix the error handling path in idxd_cdev_register()\n\nIf a call to alloc_chrdev_region() fails, the already allocated resources\nare leaking.\n\nAdd the needed error handling path to fix the leak."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"42d279f9137ab7d5503836baec2739284b278d8f","status":"affected","lessThan":"6073af78156b8c3fc1198f8bcc190b7ac3ac0143","versionType":"git"},{"version":"42d279f9137ab7d5503836baec2739284b278d8f","status":"affected","lessThan":"b3c7b5d08e9d5b2ff31c03078c00ecf11042419f","versionType":"git"},{"version":"42d279f9137ab7d5503836baec2739284b278d8f","status":"affected","lessThan":"5e88561eceb34ae3f88451c2b8e30fe403484189","versionType":"git"},{"version":"42d279f9137ab7d5503836baec2739284b278d8f","status":"affected","lessThan":"c308a2e711a52a47f4b45e7add2b5200169e429a","versionType":"git"},{"version":"42d279f9137ab7d5503836baec2739284b278d8f","status":"affected","lessThan":"aab08c1aac01097815fbcf10fce7021d2396a31f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/idxd/cdev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.6","versionType":"semver"},{"version":"5.10.121","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.46","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.17.14","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18.3","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/idxd/cdev.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/6073af78156b8c3fc1198f8bcc190b7ac3ac0143"},{"url":"https://git.kernel.org/stable/c/b3c7b5d08e9d5b2ff31c03078c00ecf11042419f"},{"url":"https://git.kernel.org/stable/c/5e88561eceb34ae3f88451c2b8e30fe403484189"},{"url":"https://git.kernel.org/stable/c/c308a2e711a52a47f4b45e7add2b5200169e429a"},{"url":"https://git.kernel.org/stable/c/aab08c1aac01097815fbcf10fce7021d2396a31f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:59:30.811Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.10.121"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.15.46"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.17.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.18.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}