cve-2022-49921
Vulnerability from cvelistv5
Published
2025-05-01 14:11
Modified
2025-05-04 12:45
Severity ?
EPSS score ?
Summary
net: sched: Fix use after free in red_enqueue()
References
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "net/sched/sch_red.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "795afe0b9bb6c915f0299a8e309936519be01619", "status": "affected", "version": "d7f4f332f082c4d4ba53582f902ed6b44fd6f45e", "versionType": "git" }, { "lessThan": "a238cdcf2bdc72207c74375fc8be13ee549ca9db", "status": "affected", "version": "d7f4f332f082c4d4ba53582f902ed6b44fd6f45e", "versionType": "git" }, { "lessThan": "e877f8fa49fbccc63cb2df2e9179bddc695b825a", "status": "affected", "version": "d7f4f332f082c4d4ba53582f902ed6b44fd6f45e", "versionType": "git" }, { "lessThan": "52e0429471976785c155bfbf51d80990c6cd46e2", "status": "affected", "version": "d7f4f332f082c4d4ba53582f902ed6b44fd6f45e", "versionType": "git" }, { "lessThan": "5960b9081baca85cc7dcb14aec1de85999ea9d36", "status": "affected", "version": "d7f4f332f082c4d4ba53582f902ed6b44fd6f45e", "versionType": "git" }, { "lessThan": "fc4b50adb400ee5ec527a04073174e8e73a139fa", "status": "affected", "version": "d7f4f332f082c4d4ba53582f902ed6b44fd6f45e", "versionType": "git" }, { "lessThan": "170e5317042c302777ed6d59fdb84af9b0219d4e", "status": "affected", "version": "d7f4f332f082c4d4ba53582f902ed6b44fd6f45e", "versionType": "git" }, { "lessThan": "8bdc2acd420c6f3dd1f1c78750ec989f02a1e2b9", "status": "affected", "version": "d7f4f332f082c4d4ba53582f902ed6b44fd6f45e", "versionType": "git" }, { "status": "affected", "version": "ab0b3b9dbf559a5633d460e748144697bd2d3aa3", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "net/sched/sch_red.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "4.7" }, { "lessThan": "4.7", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "4.9.*", "status": "unaffected", "version": "4.9.333", "versionType": "semver" }, { "lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.299", "versionType": "semver" }, { "lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.265", "versionType": "semver" }, { "lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.224", "versionType": "semver" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.154", "versionType": "semver" }, { "lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.78", "versionType": "semver" }, { "lessThanOrEqual": "6.0.*", "status": "unaffected", "version": "6.0.8", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.1", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.9.333", "versionStartIncluding": "4.7", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.14.299", "versionStartIncluding": "4.7", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.19.265", "versionStartIncluding": "4.7", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.4.224", "versionStartIncluding": "4.7", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.10.154", "versionStartIncluding": "4.7", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.15.78", "versionStartIncluding": "4.7", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.0.8", "versionStartIncluding": "4.7", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.1", "versionStartIncluding": "4.7", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4.163", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: Fix use after free in red_enqueue()\n\nWe can\u0027t use \"skb\" again after passing it to qdisc_enqueue(). This is\nbasically identical to commit 2f09707d0c97 (\"sch_sfb: Also store skb\nlen before calling child enqueue\")." } ], "providerMetadata": { "dateUpdated": "2025-05-04T12:45:28.463Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/795afe0b9bb6c915f0299a8e309936519be01619" }, { "url": "https://git.kernel.org/stable/c/a238cdcf2bdc72207c74375fc8be13ee549ca9db" }, { "url": "https://git.kernel.org/stable/c/e877f8fa49fbccc63cb2df2e9179bddc695b825a" }, { "url": "https://git.kernel.org/stable/c/52e0429471976785c155bfbf51d80990c6cd46e2" }, { "url": "https://git.kernel.org/stable/c/5960b9081baca85cc7dcb14aec1de85999ea9d36" }, { "url": "https://git.kernel.org/stable/c/fc4b50adb400ee5ec527a04073174e8e73a139fa" }, { "url": "https://git.kernel.org/stable/c/170e5317042c302777ed6d59fdb84af9b0219d4e" }, { "url": "https://git.kernel.org/stable/c/8bdc2acd420c6f3dd1f1c78750ec989f02a1e2b9" } ], "title": "net: sched: Fix use after free in red_enqueue()", "x_generator": { "engine": "bippy-1.2.0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2022-49921", "datePublished": "2025-05-01T14:11:00.309Z", "dateReserved": "2025-05-01T14:05:17.252Z", "dateUpdated": "2025-05-04T12:45:28.463Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2022-49921\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:17.627\",\"lastModified\":\"2025-05-02T13:52:51.693\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: sched: Fix use after free in red_enqueue()\\n\\nWe can\u0027t use \\\"skb\\\" again after passing it to qdisc_enqueue(). This is\\nbasically identical to commit 2f09707d0c97 (\\\"sch_sfb: Also store skb\\nlen before calling child enqueue\\\").\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: sched: Se corrige el use after free en red_enqueue(). No podemos volver a usar \\\"skb\\\" despu\u00e9s de pasarlo a qdisc_enqueue(). Esto es pr\u00e1cticamente id\u00e9ntico a el commit 2f09707d0c97 (\\\"sch_sfb: Tambi\u00e9n se almacena la longitud de skb antes de llamar a la cola secundaria\\\").\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/170e5317042c302777ed6d59fdb84af9b0219d4e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/52e0429471976785c155bfbf51d80990c6cd46e2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5960b9081baca85cc7dcb14aec1de85999ea9d36\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/795afe0b9bb6c915f0299a8e309936519be01619\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8bdc2acd420c6f3dd1f1c78750ec989f02a1e2b9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a238cdcf2bdc72207c74375fc8be13ee549ca9db\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e877f8fa49fbccc63cb2df2e9179bddc695b825a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fc4b50adb400ee5ec527a04073174e8e73a139fa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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