{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-47721", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-09-30T16:00:12.950Z", "datePublished": "2024-10-21T11:53:50.861Z", "dateUpdated": "2026-08-05T11:39:41.958Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:39:41.958Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: remove unused C2H event ID RTW89_MAC_C2H_FUNC_READ_WOW_CAM to prevent out-of-bounds reading\n\nThe handler of firmware C2H event RTW89_MAC_C2H_FUNC_READ_WOW_CAM isn't\nimplemented, but driver expects number of handlers is\nNUM_OF_RTW89_MAC_C2H_FUNC_WOW causing out-of-bounds access. Fix it by\nremoving ID.\n\nAddresses-Coverity-ID: 1598775 (\"Out-of-bounds read\")" } ], "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 - The malicious C2H event originates from the Wi-Fi device firmware, whose state and event emission are driven by over-the-air activity (WoWLAN wake patterns, association/rekey traffic) from an attacker within radio range, and the WOW-class dispatch path is entered directly from the device interrupt handler. Consistent with kernel CNA practice for firmware-supplied-index OOB bugs in wireless drivers, this is Adjacent rather than Network.\nAC:L - The class and func fields are consumed verbatim from the C2H header with no validation whatsoever, so a single event with class=0x3/func=1 deterministically triggers the out-of-bounds fetch and indirect call — no race, no memory-layout grooming, and no timing window is involved.\nPR:N - The C2H dispatch path is gated only by RTW89_FLAG_RUNNING (interface up); there is no capability check, no authentication, and no requirement that WoWLAN was configured by a privileged process. The attacker needs no credentials on the target system.\nUI:N - No victim action is required — the event is processed asynchronously in the driver's interrupt/work path as soon as it arrives, independent of any user activity such as suspending the machine or configuring WoWLAN.\nS:U - The out-of-bounds read and the resulting indirect call both occur within the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Reading past the one-element handler table and invoking the resulting pointer produces a type confusion with adjacent same-signature C2H handlers, which cast skb->data to fixed structs and memcpy fixed lengths without honoring len — leaking out-of-bounds heap contents into driver state, including WoWLAN key-material buffers (GTK/PTK/IGTK/IV). Combined with the leak of kernel .rodata contents through the branch target, this is a high confidentiality impact.\nI:H - The OOB slot is dereferenced as a function pointer and called, so an attacker-induced event transfers control to an address the kernel never intended to branch to — a control-flow-integrity violation and potential code-execution primitive — while the type-confused handler also writes unvalidated firmware-controlled data into driver key/state structures.\nA:H - Calling a garbage or mismatched function pointer from interrupt/atomic context reliably produces a kernel oops, CFI panic, or memory corruption crash, and the event can be re-delivered repeatedly." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/realtek/rtw89/mac.h" ], "versions": [ { "version": "ff53fce5c78ba27ec7eb0baff7ef9648fde7ad8e", "lessThan": "10463308b9454f534d03300cf679bc4b3d078f46", "status": "affected", "versionType": "git" }, { "version": "ff53fce5c78ba27ec7eb0baff7ef9648fde7ad8e", "lessThan": "2c9c2d1a20916589497a7facbea3e82cabec4ab8", "status": "affected", "versionType": "git" }, { "version": "ff53fce5c78ba27ec7eb0baff7ef9648fde7ad8e", "lessThan": "56310ddb50b190b3390fdc974aec455d0a516bd2", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/realtek/rtw89/mac.h" ], "versions": [ { "version": "6.10", "status": "affected" }, { "version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver" }, { "version": "6.10.13", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.2", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "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": "6.10", "versionEndExcluding": "6.10.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.11.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/10463308b9454f534d03300cf679bc4b3d078f46" }, { "url": "https://git.kernel.org/stable/c/2c9c2d1a20916589497a7facbea3e82cabec4ab8" }, { "url": "https://git.kernel.org/stable/c/56310ddb50b190b3390fdc974aec455d0a516bd2" } ], "title": "wifi: rtw89: remove unused C2H event ID RTW89_MAC_C2H_FUNC_READ_WOW_CAM to prevent out-of-bounds reading", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-47721", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-10-21T13:02:00.306477Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-21T13:04:17.474Z" } } ] } }