| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"Revert \"block, bfq: honor already-setup queue merges\"\"\n\nA crash [1] happened to be triggered in conjunction with commit\n2d52c58b9c9b (\"block, bfq: honor already-setup queue merges\"). The\nlatter was then reverted by commit ebc69e897e17 (\"Revert \"block, bfq:\nhonor already-setup queue merges\"\"). Yet, the reverted commit was not\nthe one introducing the bug. In fact, it actually triggered a UAF\nintroduced by a different commit, and now fixed by commit d29bd41428cf\n(\"block, bfq: reset last_bfqq_created on group change\").\n\nSo, there is no point in keeping commit 2d52c58b9c9b (\"block, bfq:\nhonor already-setup queue merges\") out. This commit restores it.\n\n[1] https://bugzilla.kernel.org/show_bug.cgi?id=214503" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "block/bfq-iosched.c" |
| ], |
| "versions": [ |
| { |
| "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", |
| "lessThan": "f990f0985eda59d4f29fc83fcf300c92b1225d39", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", |
| "lessThan": "931aff627469a75c77b9fd3823146d0575afffd6", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", |
| "lessThan": "cc051f497eac9d8a0d816cd4bffa3415f2724871", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", |
| "lessThan": "65d8a737452e88f251fe5d925371de6d606df613", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", |
| "lessThan": "abc2129e646af7b43025d90a071f83043f1ae76c", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", |
| "lessThan": "4083925bd6dc89216d156474a8076feec904e607", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", |
| "lessThan": "15729ff8143f8135b03988a100a19e66d7cb7ecd", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "block/bfq-iosched.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.12", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.12", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.238", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.189", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.110", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.33", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.16.19", |
| "lessThanOrEqual": "5.16.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.17.2", |
| "lessThanOrEqual": "5.17.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.18", |
| "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": "4.12", |
| "versionEndExcluding": "4.19.238" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.12", |
| "versionEndExcluding": "5.4.189" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.12", |
| "versionEndExcluding": "5.10.110" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.12", |
| "versionEndExcluding": "5.15.33" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.12", |
| "versionEndExcluding": "5.16.19" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.12", |
| "versionEndExcluding": "5.17.2" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.12", |
| "versionEndExcluding": "5.18" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/f990f0985eda59d4f29fc83fcf300c92b1225d39" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/931aff627469a75c77b9fd3823146d0575afffd6" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/cc051f497eac9d8a0d816cd4bffa3415f2724871" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/65d8a737452e88f251fe5d925371de6d606df613" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/abc2129e646af7b43025d90a071f83043f1ae76c" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/4083925bd6dc89216d156474a8076feec904e607" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/15729ff8143f8135b03988a100a19e66d7cb7ecd" |
| } |
| ], |
| "title": "Revert \"Revert \"block, bfq: honor already-setup queue merges\"\"", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47646", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
