269 lines
13 KiB
JSON
269 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-49080",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-02-26T01:49:39.247Z",
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"datePublished": "2025-02-26T01:54:41.176Z",
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"dateUpdated": "2026-05-11T18:52:38.593Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T18:52:38.593Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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 }"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"mm/mempolicy.c"
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],
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"versions": [
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{
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"version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264",
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"lessThan": "8510c2346d9e47a72b7f018a36ef0c39483e53d6",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264",
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"lessThan": "5e16dc5378abd749a836daa9ee4ab2c8d2668999",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264",
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"lessThan": "39a32f3c06f6d68a530bf9612afa19f50f12e93d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264",
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"lessThan": "25f506273b6ae806fd46bfcb6fdaa5b9ec81a05b",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264",
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"lessThan": "f7e183b0a7136b6dc9c7b9b2a85a608a8feba894",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264",
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"lessThan": "198932a14aeb19a15cf19e51e151d023bc4cd648",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264",
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"lessThan": "6e00309ac716fa8225f0cbde2cd9c24f0e74ee21",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264",
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"lessThan": "fe39ac59dbbf893b73b24e3184161d0bd06d6651",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "42288fe366c4f1ce7522bc9f27d0bc2a81c55264",
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"lessThan": "4ad099559b00ac01c3726e5c95dc3108ef47d03e",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"mm/mempolicy.c"
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],
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"versions": [
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{
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"version": "3.8",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "3.8",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.9.311",
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"lessThanOrEqual": "4.9.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.14.276",
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"lessThanOrEqual": "4.14.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.19.238",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.189",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.111",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.34",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.16.20",
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"lessThanOrEqual": "5.16.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.17.3",
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"lessThanOrEqual": "5.17.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.18",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.8",
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"versionEndExcluding": "4.9.311"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.8",
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"versionEndExcluding": "4.14.276"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.8",
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"versionEndExcluding": "4.19.238"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.8",
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"versionEndExcluding": "5.4.189"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.8",
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"versionEndExcluding": "5.10.111"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.8",
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"versionEndExcluding": "5.15.34"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.8",
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"versionEndExcluding": "5.16.20"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.8",
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"versionEndExcluding": "5.17.3"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.8",
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"versionEndExcluding": "5.18"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/8510c2346d9e47a72b7f018a36ef0c39483e53d6"
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},
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{
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"url": "https://git.kernel.org/stable/c/5e16dc5378abd749a836daa9ee4ab2c8d2668999"
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},
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{
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"url": "https://git.kernel.org/stable/c/39a32f3c06f6d68a530bf9612afa19f50f12e93d"
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},
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{
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"url": "https://git.kernel.org/stable/c/25f506273b6ae806fd46bfcb6fdaa5b9ec81a05b"
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},
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{
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"url": "https://git.kernel.org/stable/c/f7e183b0a7136b6dc9c7b9b2a85a608a8feba894"
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},
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{
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"url": "https://git.kernel.org/stable/c/198932a14aeb19a15cf19e51e151d023bc4cd648"
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},
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{
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"url": "https://git.kernel.org/stable/c/6e00309ac716fa8225f0cbde2cd9c24f0e74ee21"
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},
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{
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"url": "https://git.kernel.org/stable/c/fe39ac59dbbf893b73b24e3184161d0bd06d6651"
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},
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{
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"url": "https://git.kernel.org/stable/c/4ad099559b00ac01c3726e5c95dc3108ef47d03e"
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}
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],
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"title": "mm/mempolicy: fix mpol_new leak in shared_policy_replace",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |