| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: dev: can_restart: fix use after free bug\n\nAfter calling netif_rx_ni(skb), dereferencing skb is unsafe.\nEspecially, the can_frame cf which aliases skb memory is accessed\nafter the netif_rx_ni() in:\n stats->rx_bytes += cf->len;\n\nReordering the lines solves the issue." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/net/can/dev.c" |
| ], |
| "versions": [ |
| { |
| "version": "39549eef3587f1c1e8c65c88a2400d10fd30ea17", |
| "lessThan": "260925a0b7d2da5449f8ecfd02c1405e0c8a45b8", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "39549eef3587f1c1e8c65c88a2400d10fd30ea17", |
| "lessThan": "bbc6847b9b8978b520f62fbc7c68c54ef0f8d282", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "39549eef3587f1c1e8c65c88a2400d10fd30ea17", |
| "lessThan": "92668d28c7e6a7a2ba07df287669ffcdf650c421", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "39549eef3587f1c1e8c65c88a2400d10fd30ea17", |
| "lessThan": "08ab951787098ae0b6c0364aeea7a8138226f234", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "39549eef3587f1c1e8c65c88a2400d10fd30ea17", |
| "lessThan": "ac48ef15826e83f4206c47add61072e8fc76d328", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "39549eef3587f1c1e8c65c88a2400d10fd30ea17", |
| "lessThan": "593c072b7b3c4d7044416eb039d9ad706bedd67a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "39549eef3587f1c1e8c65c88a2400d10fd30ea17", |
| "lessThan": "03f16c5075b22c8902d2af739969e878b0879c94", |
| "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/net/can/dev.c" |
| ], |
| "versions": [ |
| { |
| "version": "2.6.31", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "2.6.31", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.4.254", |
| "lessThanOrEqual": "4.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.9.254", |
| "lessThanOrEqual": "4.9.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.14.218", |
| "lessThanOrEqual": "4.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.171", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.93", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.11", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.11", |
| "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": "2.6.31", |
| "versionEndExcluding": "4.4.254" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.31", |
| "versionEndExcluding": "4.9.254" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.31", |
| "versionEndExcluding": "4.14.218" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.31", |
| "versionEndExcluding": "4.19.171" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.31", |
| "versionEndExcluding": "5.4.93" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.31", |
| "versionEndExcluding": "5.10.11" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.31", |
| "versionEndExcluding": "5.11" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/260925a0b7d2da5449f8ecfd02c1405e0c8a45b8" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/bbc6847b9b8978b520f62fbc7c68c54ef0f8d282" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/92668d28c7e6a7a2ba07df287669ffcdf650c421" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/08ab951787098ae0b6c0364aeea7a8138226f234" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ac48ef15826e83f4206c47add61072e8fc76d328" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/593c072b7b3c4d7044416eb039d9ad706bedd67a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/03f16c5075b22c8902d2af739969e878b0879c94" |
| } |
| ], |
| "title": "can: dev: can_restart: fix use after free bug", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47668", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
