{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-50267", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.982Z", "datePublished": "2024-11-19T01:30:03.929Z", "dateUpdated": "2026-08-05T11:42:55.096Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:42:55.096Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: io_edgeport: fix use after free in debug printk\n\nThe \"dev_dbg(&urb->dev->dev, ...\" which happens after usb_free_urb(urb)\nis a use after free of the \"urb\" pointer. Store the \"dev\" pointer at the\nstart of the function to avoid this issue." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The command URBs whose completion handler contains the defect are generated by ordinary tty operations (open/close, tcsetattr, TIOCMSET/TIOCMBIS, TIOCSBRK) on /dev/ttyUSB*, so a local user on a machine with an Edgeport device attached drives the vulnerable path via syscalls. This matches the kernel.org CNA's consistent treatment of USB-serial host driver flaws as local.\nAC:L - No race has to be won and no memory layout has to be groomed — the attacker simply issues command-generating ioctls and the released urb is dereferenced whenever the transfer completes with a nonzero status (stall, protocol error, shutdown, unlink), which is repeatable at will.\nPR:L - Only access to the /dev/ttyUSB* node is required; there is no capability check anywhere between the tty entry points and write_cmd_usb(), and on embedded, automotive and Android-style deployments the serial node is routinely readable/writable by unprivileged service or app users.\nUI:N - The attacker performs all the steps itself by opening and configuring the serial port; no separate victim has to open a file, mount anything, or take any action.\nS:U - The released urb and any consequent corruption stay within the kernel's own security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - This is a use-after-free read: the stale urb's ->dev field is loaded and dereferenced, so if the slab object is reallocated with attacker-influenced content the pointer chase can be steered to read arbitrary kernel memory, which is then formatted into the kernel log.\nI:H - Per use-after-free scoring, control over the reallocated urb contents makes the dereferenced device pointer attacker-influenced, and the resulting struct device accesses can be leveraged toward corrupting kernel state and hijacking control flow.\nA:H - Dereferencing a released urb and the device pointer read out of it readily faults or trips KASAN/slab debugging, producing an oops or panic that takes down the kernel." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/usb/serial/io_edgeport.c" ], "versions": [ { "version": "984f68683298ba53af32f909de1f9452fbb37ccb", "lessThan": "e6ceb04eeb6115d872d4c4078d12f1170ed755ce", "status": "affected", "versionType": "git" }, { "version": "984f68683298ba53af32f909de1f9452fbb37ccb", "lessThan": "39709ce93f5c3f9eb535efe2afea088805d1128f", "status": "affected", "versionType": "git" }, { "version": "984f68683298ba53af32f909de1f9452fbb37ccb", "lessThan": "e567fc8f7a4460e486e52c9261b1e8b9f5dc42aa", "status": "affected", "versionType": "git" }, { "version": "984f68683298ba53af32f909de1f9452fbb37ccb", "lessThan": "44fff2c16c5aafbdb70c7183dae0a415ae74705e", "status": "affected", "versionType": "git" }, { "version": "984f68683298ba53af32f909de1f9452fbb37ccb", "lessThan": "275258c30bbda29467216e96fb655b16bcc9992b", "status": "affected", "versionType": "git" }, { "version": "984f68683298ba53af32f909de1f9452fbb37ccb", "lessThan": "13d6ff3ca76056d06a9d88300be2a293442ff595", "status": "affected", "versionType": "git" }, { "version": "984f68683298ba53af32f909de1f9452fbb37ccb", "lessThan": "314bdf446053e123f37543aa535197ee75f8aa97", "status": "affected", "versionType": "git" }, { "version": "984f68683298ba53af32f909de1f9452fbb37ccb", "lessThan": "37bb5628379295c1254c113a407cab03a0f4d0b4", "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/usb/serial/io_edgeport.c" ], "versions": [ { "version": "3.7", "status": "affected" }, { "version": "0", "lessThan": "3.7", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.324", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.286", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.230", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.172", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.117", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.61", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.8", "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": "3.7", "versionEndExcluding": "4.19.324" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "5.4.286" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "5.10.230" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "5.15.172" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.1.117" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.6.61" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.11.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/e6ceb04eeb6115d872d4c4078d12f1170ed755ce" }, { "url": "https://git.kernel.org/stable/c/39709ce93f5c3f9eb535efe2afea088805d1128f" }, { "url": "https://git.kernel.org/stable/c/e567fc8f7a4460e486e52c9261b1e8b9f5dc42aa" }, { "url": "https://git.kernel.org/stable/c/44fff2c16c5aafbdb70c7183dae0a415ae74705e" }, { "url": "https://git.kernel.org/stable/c/275258c30bbda29467216e96fb655b16bcc9992b" }, { "url": "https://git.kernel.org/stable/c/13d6ff3ca76056d06a9d88300be2a293442ff595" }, { "url": "https://git.kernel.org/stable/c/314bdf446053e123f37543aa535197ee75f8aa97" }, { "url": "https://git.kernel.org/stable/c/37bb5628379295c1254c113a407cab03a0f4d0b4" } ], "title": "USB: serial: io_edgeport: fix use after free in debug printk", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-50267", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2024-12-11T14:26:40.834609Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-12-11T14:58:31.952Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:27:46.696Z" } } ] } }