| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/mempolicy: fix mpol_new leak in shared_policy_replace\n\nIf mpol_new is allocated but not used in restart loop, mpol_new will be\nfreed via mpol_put before returning to the caller. But refcnt is not\ninitialized yet, so mpol_put could not do the right things and might\nleak the unused mpol_new. This would happen if mempolicy was updated on\nthe shared shmem file while the sp->lock has been dropped during the\nmemory allocation.\n\nThis issue could be triggered easily with the below code snippet if\nthere are many processes doing the below work at the same time:\n\n shmid = shmget((key_t)5566, 1024 * PAGE_SIZE, 0666|IPC_CREAT);\n shm = shmat(shmid, 0, 0);\n loop many times {\n mbind(shm, 1024 * PAGE_SIZE, MPOL_LOCAL, mask, maxnode, 0);\n mbind(shm + 128 * PAGE_SIZE, 128 * PAGE_SIZE, MPOL_DEFAULT, mask,\n maxnode, 0);\n }" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "mm/mempolicy.c" |
| ], |
| "versions": [ |
| { |
| "version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264", |
| "lessThan": "8510c2346d9e47a72b7f018a36ef0c39483e53d6", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264", |
| "lessThan": "5e16dc5378abd749a836daa9ee4ab2c8d2668999", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264", |
| "lessThan": "39a32f3c06f6d68a530bf9612afa19f50f12e93d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264", |
| "lessThan": "25f506273b6ae806fd46bfcb6fdaa5b9ec81a05b", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264", |
| "lessThan": "f7e183b0a7136b6dc9c7b9b2a85a608a8feba894", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264", |
| "lessThan": "198932a14aeb19a15cf19e51e151d023bc4cd648", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264", |
| "lessThan": "6e00309ac716fa8225f0cbde2cd9c24f0e74ee21", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264", |
| "lessThan": "fe39ac59dbbf893b73b24e3184161d0bd06d6651", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264", |
| "lessThan": "4ad099559b00ac01c3726e5c95dc3108ef47d03e", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "mm/mempolicy.c" |
| ], |
| "versions": [ |
| { |
| "version": "3.8", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "3.8", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.9.311", |
| "lessThanOrEqual": "4.9.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.14.276", |
| "lessThanOrEqual": "4.14.*", |
| "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": "5.10.111", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.34", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.16.20", |
| "lessThanOrEqual": "5.16.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.17.3", |
| "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": "3.8", |
| "versionEndExcluding": "4.9.311" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.8", |
| "versionEndExcluding": "4.14.276" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.8", |
| "versionEndExcluding": "4.19.238" |
| }, |
| { |
| "vulnerable": true, |
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| "versionStartIncluding": "3.8", |
| "versionEndExcluding": "5.4.189" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.8", |
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| }, |
| { |
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| "versionStartIncluding": "3.8", |
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| }, |
| { |
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| "versionStartIncluding": "3.8", |
| "versionEndExcluding": "5.16.20" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.8", |
| "versionEndExcluding": "5.17.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.8", |
| "versionEndExcluding": "5.18" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/8510c2346d9e47a72b7f018a36ef0c39483e53d6" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5e16dc5378abd749a836daa9ee4ab2c8d2668999" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/39a32f3c06f6d68a530bf9612afa19f50f12e93d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/25f506273b6ae806fd46bfcb6fdaa5b9ec81a05b" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f7e183b0a7136b6dc9c7b9b2a85a608a8feba894" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/198932a14aeb19a15cf19e51e151d023bc4cd648" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6e00309ac716fa8225f0cbde2cd9c24f0e74ee21" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/fe39ac59dbbf893b73b24e3184161d0bd06d6651" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/4ad099559b00ac01c3726e5c95dc3108ef47d03e" |
| } |
| ], |
| "title": "mm/mempolicy: fix mpol_new leak in shared_policy_replace", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2022-49080", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
