{"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"}}]}}