{ "dataType": "CVE_RECORD", "cveMetadata": { "cveId": "CVE-2024-27073", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.216Z", "datePublished": "2024-05-01T13:04:37.653Z", "dateUpdated": "2026-08-05T11:29:22.792Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:29:22.792Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ttpci: fix two memleaks in budget_av_attach\n\nWhen saa7146_register_device and saa7146_vv_init fails, budget_av_attach\nshould free the resources it allocates, like the error-handling of\nttpci_budget_init does. Besides, there are two fixme comment refers to\nsuch deallocations." } ], "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 vulnerable code is a PCI probe-time attach callback, and the resulting dangling state is exercised through local device files (/dev/dvb/adapterN/demux0, dvr0, dvbnet); there is no remote or adjacent-network path into budget_av_attach.\nAC:L - Once the failure branch has been taken, the attacker deterministically drives the use-after-free by opening the still-registered dvr0/demux0 node and starting a feed, with no race to win and unlimited retries.\nPR:L - Reaching the stale DVB character devices requires only an unprivileged local account with access to /dev/dvb, which is the norm for the video group on desktops and for the media/DVB application account on the set-top-box and embedded systems that carry these ttpci cards.\nUI:N - No victim action is needed; the leaked and dangling registrations are created automatically during driver probe and remain live until reboot.\nS:U - The freed saa7146_dev object, the leaked budget_av allocation and the orphaned DVB/i2c registrations all live inside the kernel's own security authority, crossing no VM, IOMMU or sandbox boundary.\nC:H - budget->dev is left pointing at kmem_cache memory freed by saa7146_init_one's error path, so subsequent demux/dvr operations read attacker-groomable freed slab contents (including the dev->mem MMIO pointer), a use-after-free that can be leveraged for kernel information disclosure.\nI:H - start_ts_capture() performs saa7146_write() through the freed device's dev->mem pointer, so an attacker who reclaims that slab controls the destination of kernel writel() operations, yielding a write primitive suitable for control-flow hijacking.\nA:H - Beyond the unbounded leak of the budget_av allocation, the DMA page table and the pinned module reference, any access to the orphaned demux/dvr/dvbnet nodes dereferences freed memory and performs MMIO through an iounmap'd mapping, reliably oopsing or panicking the kernel." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/media/pci/ttpci/budget-av.c" ], "versions": [ { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "af37aed04997e644f7e1b52b696b62dcae3cc016", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "910363473e4bf97da3c350e08d915546dd6cc30b", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "24e51d6eb578b82ff292927f14b9f5ec05a46beb", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "55ca0c7eae8499bb96f4e5d9b26af95e89c4e6a0", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "7393c681f9aa05ffe2385e8716989565eed2fe06", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1597cd1a88cfcdc4bf8b1b44cd458fed9a5a5d63", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "656b8cc123d7635dd399d9f02594f27aa797ac3c", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "d0b07f712bf61e1a3cf23c87c663791c42e50837", "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/media/pci/ttpci/budget-av.c" ], "versions": [ { "version": "2.6.12", "status": "affected" }, { "version": "0", "lessThan": "2.6.12", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.273", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.214", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.153", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.83", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.23", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.7.11", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.8.2", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9", "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": "2.6.12", "versionEndExcluding": "5.4.273" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.10.214" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.15.153" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.1.83" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.6.23" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.7.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.8.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.9" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/af37aed04997e644f7e1b52b696b62dcae3cc016" }, { "url": "https://git.kernel.org/stable/c/910363473e4bf97da3c350e08d915546dd6cc30b" }, { "url": "https://git.kernel.org/stable/c/24e51d6eb578b82ff292927f14b9f5ec05a46beb" }, { "url": "https://git.kernel.org/stable/c/55ca0c7eae8499bb96f4e5d9b26af95e89c4e6a0" }, { "url": "https://git.kernel.org/stable/c/7393c681f9aa05ffe2385e8716989565eed2fe06" }, { "url": "https://git.kernel.org/stable/c/1597cd1a88cfcdc4bf8b1b44cd458fed9a5a5d63" }, { "url": "https://git.kernel.org/stable/c/656b8cc123d7635dd399d9f02594f27aa797ac3c" }, { "url": "https://git.kernel.org/stable/c/d0b07f712bf61e1a3cf23c87c663791c42e50837" } ], "title": "media: ttpci: fix two memleaks in budget_av_attach", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "lang": "en", "description": "CWE-noinfo Not enough information" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2024-06-06T18:09:11.753345Z", "id": "CVE-2024-27073", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-06T18:51:09.232Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:27:57.810Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/af37aed04997e644f7e1b52b696b62dcae3cc016", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/910363473e4bf97da3c350e08d915546dd6cc30b", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/24e51d6eb578b82ff292927f14b9f5ec05a46beb", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/55ca0c7eae8499bb96f4e5d9b26af95e89c4e6a0", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/7393c681f9aa05ffe2385e8716989565eed2fe06", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1597cd1a88cfcdc4bf8b1b44cd458fed9a5a5d63", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/656b8cc123d7635dd399d9f02594f27aa797ac3c", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/d0b07f712bf61e1a3cf23c87c663791c42e50837", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": [ "x_transferred" ] } ] } ] }, "dataVersion": "5.2" }