{"id":"CVE-2022-48949","state":"PUBLISHED","title":"igb: Initialize mailbox message for VF reset","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nigb: Initialize mailbox message for VF reset\n\nWhen a MAC address is not assigned to the VF, that portion of the message\nsent to the VF is not set. The memory, however, is allocated from the\nstack meaning that information may be leaked to the VM. Initialize the\nmessage buffer to 0 so that no information is passed to the VM in this\ncase.","publishedAt":"2024-10-21T20:05:37.782Z","updatedAt":"2026-05-11T18:50:16.253Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"a6629659af3f5c6a91e3914ea62554c975ab77f4","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"ef1d739dd1f362aec081278ff92f943c31eb177a","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"c581439a977545d61849a72e8ed631cfc8a2a3c1","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"f2479c3daaabccbac6c343a737615d0c595c6dc4","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"367e1e3399dbc56fc669740c4ab60e35da632b0e","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"51fd5ede7ed42f272682a0c33d6f0767b3484a3d","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"c383c7c35c7bc15e07a04eefa060a8a80cbeae29","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"de5dc44370fbd6b46bd7f1a1e00369be54a041c8","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/igb/igb_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.0","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":"5.10.161","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.85","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.15","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.1","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/net/ethernet/intel/igb/igb_main.c"]}],"references":["https://git.kernel.org/stable/c/a6629659af3f5c6a91e3914ea62554c975ab77f4","https://git.kernel.org/stable/c/ef1d739dd1f362aec081278ff92f943c31eb177a","https://git.kernel.org/stable/c/c581439a977545d61849a72e8ed631cfc8a2a3c1","https://git.kernel.org/stable/c/f2479c3daaabccbac6c343a737615d0c595c6dc4","https://git.kernel.org/stable/c/367e1e3399dbc56fc669740c4ab60e35da632b0e","https://git.kernel.org/stable/c/51fd5ede7ed42f272682a0c33d6f0767b3484a3d","https://git.kernel.org/stable/c/c383c7c35c7bc15e07a04eefa060a8a80cbeae29","https://git.kernel.org/stable/c/de5dc44370fbd6b46bd7f1a1e00369be54a041c8"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/48xxx/CVE-2022-48949.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-48949","state":"PUBLISHED","datePublished":"2024-10-21T20:05:37.782Z","dateUpdated":"2026-05-11T18:50:16.253Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-08-22T01:27:53.625Z"},"containers":{"cna":{"title":"igb: Initialize mailbox message for VF reset","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nigb: Initialize mailbox message for VF reset\n\nWhen a MAC address is not assigned to the VF, that portion of the message\nsent to the VF is not set. The memory, however, is allocated from the\nstack meaning that information may be leaked to the VM. Initialize the\nmessage buffer to 0 so that no information is passed to the VM in this\ncase."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"a6629659af3f5c6a91e3914ea62554c975ab77f4","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"ef1d739dd1f362aec081278ff92f943c31eb177a","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"c581439a977545d61849a72e8ed631cfc8a2a3c1","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"f2479c3daaabccbac6c343a737615d0c595c6dc4","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"367e1e3399dbc56fc669740c4ab60e35da632b0e","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"51fd5ede7ed42f272682a0c33d6f0767b3484a3d","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"c383c7c35c7bc15e07a04eefa060a8a80cbeae29","versionType":"git"},{"version":"6ddbc4cf1f4d5a3a58b4223c80881f299dae3774","status":"affected","lessThan":"de5dc44370fbd6b46bd7f1a1e00369be54a041c8","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/igb/igb_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.0","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":"5.10.161","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.85","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.15","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.1","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/net/ethernet/intel/igb/igb_main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a6629659af3f5c6a91e3914ea62554c975ab77f4"},{"url":"https://git.kernel.org/stable/c/ef1d739dd1f362aec081278ff92f943c31eb177a"},{"url":"https://git.kernel.org/stable/c/c581439a977545d61849a72e8ed631cfc8a2a3c1"},{"url":"https://git.kernel.org/stable/c/f2479c3daaabccbac6c343a737615d0c595c6dc4"},{"url":"https://git.kernel.org/stable/c/367e1e3399dbc56fc669740c4ab60e35da632b0e"},{"url":"https://git.kernel.org/stable/c/51fd5ede7ed42f272682a0c33d6f0767b3484a3d"},{"url":"https://git.kernel.org/stable/c/c383c7c35c7bc15e07a04eefa060a8a80cbeae29"},{"url":"https://git.kernel.org/stable/c/de5dc44370fbd6b46bd7f1a1e00369be54a041c8"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:50:16.253Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"4.14.303"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"4.19.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"5.4.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"5.10.161"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"5.15.85"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"6.0.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"6.1.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA 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