{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49015", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-22T01:27:53.645Z", "datePublished": "2024-10-21T20:06:24.668Z", "dateUpdated": "2026-08-05T08:53:27.063Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:53:27.063Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hsr: Fix potential use-after-free\n\nThe skb is delivered to netif_rx() which may free it, after calling this,\ndereferencing skb may trigger use-after-free." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:A - HSR/PRP is an IEC 62439-3 Layer-2 Ethernet ring protocol; the vulnerable path is the slave rx_handler (hsr_handle_frame → hsr_forward_skb → hsr_deliver_master) and requires the attacker to be on the same LAN/ring segment as the HSR interfaces.\nAC:L - An adjacent attacker can reliably deliver frames addressed to the HSR node (or multicast/broadcast) into the vulnerable deliver path; use-after-free triggering does not depend on conditions outside the attacker's ability to send traffic.\nPR:N - Exploitation is on the unauthenticated packet-receive path of an already-configured HSR device; no credentials or privileges are required of the remote adjacent attacker.\nUI:N - Frames are processed automatically by the kernel HSR rx_handler with no user action required.\nS:U - Impact is confined to the host kernel that runs the HSR stack; there is no cross-authority boundary such as a VM or IOMMU escape.\nC:H - This is a use-after-free on an sk_buff; UAF on freed heap objects can be leveraged for arbitrary kernel memory disclosure.\nI:H - sk_buff use-after-free enables heap reuse/spraying and control-flow hijacking primitives, so integrity impact is High.\nA:H - Use-after-free of an sk_buff can cause kernel oops/panic or otherwise crash the host when the freed object is accessed or corrupted." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/hsr/hsr_forward.c" ], "versions": [ { "version": "f421436a591d34fa5279b54a96ac07d70250cc8d", "lessThan": "8393ce5040803666bfa26a3a7bf41e44fab0ace9", "status": "affected", "versionType": "git" }, { "version": "f421436a591d34fa5279b54a96ac07d70250cc8d", "lessThan": "4b351609af4fdbc23f79ab2b12748f4403ea9af4", "status": "affected", "versionType": "git" }, { "version": "f421436a591d34fa5279b54a96ac07d70250cc8d", "lessThan": "b35d899854d5d5d58eb7d7e7c0f61afc60d3a9e9", "status": "affected", "versionType": "git" }, { "version": "f421436a591d34fa5279b54a96ac07d70250cc8d", "lessThan": "53a62c5efe91665f7a41fad0f888a96f94dc59eb", "status": "affected", "versionType": "git" }, { "version": "f421436a591d34fa5279b54a96ac07d70250cc8d", "lessThan": "7ca81a161e406834a1fdc405fc83a572bd14b8d9", "status": "affected", "versionType": "git" }, { "version": "f421436a591d34fa5279b54a96ac07d70250cc8d", "lessThan": "dca370e575d9b6c983f5015e8dc035e23e219ee6", "status": "affected", "versionType": "git" }, { "version": "f421436a591d34fa5279b54a96ac07d70250cc8d", "lessThan": "f3add2b8cf620966de3ebfa07679ca12d33ec26f", "status": "affected", "versionType": "git" }, { "version": "f421436a591d34fa5279b54a96ac07d70250cc8d", "lessThan": "7e177d32442b7ed08a9fa61b61724abc548cb248", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/hsr/hsr_forward.c" ], "versions": [ { "version": "3.13", "status": "affected" }, { "version": "0", "lessThan": "3.13", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.335", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.301", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.268", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.226", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.158", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.82", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.12", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1", "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": "3.13", "versionEndExcluding": "4.9.335" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "4.14.301" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "4.19.268" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "5.4.226" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "5.10.158" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "5.15.82" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.0.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/8393ce5040803666bfa26a3a7bf41e44fab0ace9" }, { "url": "https://git.kernel.org/stable/c/4b351609af4fdbc23f79ab2b12748f4403ea9af4" }, { "url": "https://git.kernel.org/stable/c/b35d899854d5d5d58eb7d7e7c0f61afc60d3a9e9" }, { "url": "https://git.kernel.org/stable/c/53a62c5efe91665f7a41fad0f888a96f94dc59eb" }, { "url": "https://git.kernel.org/stable/c/7ca81a161e406834a1fdc405fc83a572bd14b8d9" }, { "url": "https://git.kernel.org/stable/c/dca370e575d9b6c983f5015e8dc035e23e219ee6" }, { "url": "https://git.kernel.org/stable/c/f3add2b8cf620966de3ebfa07679ca12d33ec26f" }, { "url": "https://git.kernel.org/stable/c/7e177d32442b7ed08a9fa61b61724abc548cb248" } ], "title": "net: hsr: Fix potential use-after-free", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2022-49015", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-10-22T13:13:21.187546Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:18:38.056Z" } } ] } }