| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: Fix use-after-free in gfs2_glock_shrink_scan\n\nThe GLF_LRU flag is checked under lru_lock in gfs2_glock_remove_from_lru() to\nremove the glock from the lru list in __gfs2_glock_put().\n\nOn the shrink scan path, the same flag is cleared under lru_lock but because\nof cond_resched_lock(&lru_lock) in gfs2_dispose_glock_lru(), progress on the\nput side can be made without deleting the glock from the lru list.\n\nKeep GLF_LRU across the race window opened by cond_resched_lock(&lru_lock) to\nensure correct behavior on both sides - clear GLF_LRU after list_del under\nlru_lock." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/gfs2/glock.c" |
| ], |
| "versions": [ |
| { |
| "version": "6948c6bc17d666663a84c124b3176039e64a58f4", |
| "lessThan": "38ce329534500bf4ae71f81df6a37a406cf187b4", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b568ed385a18c0ddbe41862b69088b636550a04f", |
| "lessThan": "92869945cc5b78ee8a1ef90336fe070893e3458a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "762bb3528249604bc680a9df635e8995740176de", |
| "lessThan": "0364742decb0f02bc183404868b82896f7992595", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "bac8520892812dada1ac93f27d96317470d24b1f", |
| "lessThan": "094bf5670e762afa243d2c41a5c4ab71c7447bf4", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "7881ef3f33bb80f459ea6020d1e021fc524a6348", |
| "lessThan": "86fd5b27db743a0ce0cc245e3a34813b2aa6ec1d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "7881ef3f33bb80f459ea6020d1e021fc524a6348", |
| "lessThan": "a61156314b66456ab6a291ed5deba1ebd002ab3c", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "7881ef3f33bb80f459ea6020d1e021fc524a6348", |
| "lessThan": "e87ef30fe73e7e10d2c85bdcc778dcec24dca553", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "7881ef3f33bb80f459ea6020d1e021fc524a6348", |
| "lessThan": "1ab19c5de4c537ec0d9b21020395a5b5a6c059b2", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1e7a416fb765c9072479dc424780c0937ba99270", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "dcbdbe13796ffa561510d2686a6318564e728bbd", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/gfs2/glock.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.2", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.2", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.4.274", |
| "lessThanOrEqual": "4.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.9.274", |
| "lessThanOrEqual": "4.9.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.14.238", |
| "lessThanOrEqual": "4.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.196", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.127", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.45", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.12.12", |
| "lessThanOrEqual": "5.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.13", |
| "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": "4.4.181", |
| "versionEndExcluding": "4.4.274" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9.180", |
| "versionEndExcluding": "4.9.274" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.14.123", |
| "versionEndExcluding": "4.14.238" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.19.47", |
| "versionEndExcluding": "4.19.196" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.2", |
| "versionEndExcluding": "5.4.127" |
| }, |
| { |
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| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.2", |
| "versionEndExcluding": "5.10.45" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.2", |
| "versionEndExcluding": "5.12.12" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.2", |
| "versionEndExcluding": "5.13" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.0.20" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.1.6" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/38ce329534500bf4ae71f81df6a37a406cf187b4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/92869945cc5b78ee8a1ef90336fe070893e3458a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/0364742decb0f02bc183404868b82896f7992595" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/094bf5670e762afa243d2c41a5c4ab71c7447bf4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/86fd5b27db743a0ce0cc245e3a34813b2aa6ec1d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a61156314b66456ab6a291ed5deba1ebd002ab3c" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/e87ef30fe73e7e10d2c85bdcc778dcec24dca553" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/1ab19c5de4c537ec0d9b21020395a5b5a6c059b2" |
| } |
| ], |
| "title": "gfs2: Fix use-after-free in gfs2_glock_shrink_scan", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47254", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
