{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-48927", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-21T06:06:23.298Z", "datePublished": "2024-08-22T03:31:19.861Z", "dateUpdated": "2026-08-05T08:52:58.053Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:52:58.053Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: tsc2046: fix memory corruption by preventing array overflow\n\nOn one side we have indio_dev->num_channels includes all physical channels +\ntimestamp channel. On other side we have an array allocated only for\nphysical channels. So, fix memory corruption by ARRAY_SIZE() instead of\nnum_channels variable.\n\nNote the first case is a cleanup rather than a fix as the software\ntimestamp channel bit in active_scanmask is never set by the IIO core." } ], "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 overflow is in the TI TSC2046 SPI ADC/touchscreen IIO driver and is reached on local driver probe / subsequent local IIO buffer use, not via network or adjacent-network protocols.\nAC:L - The out-of-bounds access occurs deterministically whenever the driver probes with the vulnerable loop bound; no special race or attacker-uncontrollable state is required to hit the memory corruption.\nPR:L - Exploitation is in the context of a local unprivileged user on devices that expose this touchscreen/ADC (embedded/industrial/Android-class systems), without needing full root/init-namespace admin solely to benefit from the kernel corruption.\nUI:N - No separate victim action is required; the bad indexing runs during driver setup, and buffer enablement is performed by the attacker’s own local process.\nS:U - Impact stays within the host kernel’s authority (local memory corruption / privilege impact); it does not cross a VM, IOMMU, or other explicit security boundary.\nC:H - The bug is an out-of-bounds write/read against kernel memory (layout array overflow and read past ch_cfg into adjacent slab), which can be leveraged for information disclosure primitives under the kernel memory-corruption model.\nI:H - Out-of-bounds writes into adjacent private-state/heap (and potential undersized SPI TX/RX buffers used later) are integrity-impacting memory corruption that can support control-flow hijacking.\nA:H - Kernel out-of-bounds memory corruption in this path can oops/panic or otherwise hard-fail the kernel, so availability impact is high." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/iio/adc/ti-tsc2046.c" ], "versions": [ { "version": "9374e8f5a38defe90bc65b2decf317c1c62d91dd", "lessThan": "0cb9b2f73c182d242a640e512f4785c7c504512f", "status": "affected", "versionType": "git" }, { "version": "9374e8f5a38defe90bc65b2decf317c1c62d91dd", "lessThan": "082d2c047b0d305bb0b6e9f9d671a09470e2db2d", "status": "affected", "versionType": "git" }, { "version": "9374e8f5a38defe90bc65b2decf317c1c62d91dd", "lessThan": "b7a78a8adaa8849c02f174d707aead0f85dca0da", "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/iio/adc/ti-tsc2046.c" ], "versions": [ { "version": "5.14", "status": "affected" }, { "version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.26", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16.12", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17", "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": "5.14", "versionEndExcluding": "5.15.26" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "5.16.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "5.17" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/0cb9b2f73c182d242a640e512f4785c7c504512f" }, { "url": "https://git.kernel.org/stable/c/082d2c047b0d305bb0b6e9f9d671a09470e2db2d" }, { "url": "https://git.kernel.org/stable/c/b7a78a8adaa8849c02f174d707aead0f85dca0da" } ], "title": "iio: adc: tsc2046: fix memory corruption by preventing array overflow", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2022-48927", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T15:33:02.652045Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:33:00.502Z" } } ] } }