{"id":"CVE-2022-49122","state":"PUBLISHED","title":"dm ioctl: prevent potential spectre v1 gadget","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm ioctl: prevent potential spectre v1 gadget\n\nIt appears like cmd could be a Spectre v1 gadget as it's supplied by a\nuser and used as an array index. Prevent the contents of kernel memory\nfrom being leaked to userspace via speculative execution by using\narray_index_nospec.","publishedAt":"2025-02-26T01:55:02.161Z","updatedAt":"2026-05-11T18:53:35.294Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"76c94651005f58885facf9c973007f5ea01ab01f","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"58880025e3362024f6d8ea01cb0c7a5df6c84ba6","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"7ae2c5b89da3cfaf856df880af27d3bb32a74b3d","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"0320bac5801b31407200227173205d017488f140","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"71c8df33fd777c7628f6fbc09b14e84806c55914","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"02cc46f397eb3691c56affbd5073e54f7a82ac32","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"44e6cb3ab177faae840bb2c1ebda9a2539876184","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"dd86064417de828ff2102ddc6049c829bf7585b4","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"cd9c88da171a62c4b0f1c70e50c75845969fbc18","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-ioctl.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"4.9.311","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.276","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.238","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.189","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.111","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.34","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.20","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.3","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-ioctl.c"]}],"references":["https://git.kernel.org/stable/c/76c94651005f58885facf9c973007f5ea01ab01f","https://git.kernel.org/stable/c/58880025e3362024f6d8ea01cb0c7a5df6c84ba6","https://git.kernel.org/stable/c/7ae2c5b89da3cfaf856df880af27d3bb32a74b3d","https://git.kernel.org/stable/c/0320bac5801b31407200227173205d017488f140","https://git.kernel.org/stable/c/71c8df33fd777c7628f6fbc09b14e84806c55914","https://git.kernel.org/stable/c/02cc46f397eb3691c56affbd5073e54f7a82ac32","https://git.kernel.org/stable/c/44e6cb3ab177faae840bb2c1ebda9a2539876184","https://git.kernel.org/stable/c/dd86064417de828ff2102ddc6049c829bf7585b4","https://git.kernel.org/stable/c/cd9c88da171a62c4b0f1c70e50c75845969fbc18"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49122.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49122","state":"PUBLISHED","datePublished":"2025-02-26T01:55:02.161Z","dateUpdated":"2026-05-11T18:53:35.294Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T01:49:39.264Z"},"containers":{"cna":{"title":"dm ioctl: prevent potential spectre v1 gadget","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm ioctl: prevent potential spectre v1 gadget\n\nIt appears like cmd could be a Spectre v1 gadget as it's supplied by a\nuser and used as an array index. Prevent the contents of kernel memory\nfrom being leaked to userspace via speculative execution by using\narray_index_nospec."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"76c94651005f58885facf9c973007f5ea01ab01f","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"58880025e3362024f6d8ea01cb0c7a5df6c84ba6","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"7ae2c5b89da3cfaf856df880af27d3bb32a74b3d","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"0320bac5801b31407200227173205d017488f140","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"71c8df33fd777c7628f6fbc09b14e84806c55914","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"02cc46f397eb3691c56affbd5073e54f7a82ac32","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"44e6cb3ab177faae840bb2c1ebda9a2539876184","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"dd86064417de828ff2102ddc6049c829bf7585b4","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"cd9c88da171a62c4b0f1c70e50c75845969fbc18","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-ioctl.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"4.9.311","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.276","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.238","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.189","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.111","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.34","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.20","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.3","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-ioctl.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/76c94651005f58885facf9c973007f5ea01ab01f"},{"url":"https://git.kernel.org/stable/c/58880025e3362024f6d8ea01cb0c7a5df6c84ba6"},{"url":"https://git.kernel.org/stable/c/7ae2c5b89da3cfaf856df880af27d3bb32a74b3d"},{"url":"https://git.kernel.org/stable/c/0320bac5801b31407200227173205d017488f140"},{"url":"https://git.kernel.org/stable/c/71c8df33fd777c7628f6fbc09b14e84806c55914"},{"url":"https://git.kernel.org/stable/c/02cc46f397eb3691c56affbd5073e54f7a82ac32"},{"url":"https://git.kernel.org/stable/c/44e6cb3ab177faae840bb2c1ebda9a2539876184"},{"url":"https://git.kernel.org/stable/c/dd86064417de828ff2102ddc6049c829bf7585b4"},{"url":"https://git.kernel.org/stable/c/cd9c88da171a62c4b0f1c70e50c75845969fbc18"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:53:35.294Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"4.9.311"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"4.14.276"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"4.19.238"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.4.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.10.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.15.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.16.20"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.17.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.18"}]}]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