{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-43825", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-17T09:11:59.272Z", "datePublished": "2024-08-17T09:21:45.215Z", "dateUpdated": "2026-08-05T11:36:39.524Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:36:39.524Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: Fix the sorting functionality in iio_gts_build_avail_time_table\n\nThe sorting in iio_gts_build_avail_time_table is not working as intended.\nIt could result in an out-of-bounds access when the time is zero.\n\nHere are more details:\n\n1. When the gts->itime_table[i].time_us is zero, e.g., the time\nsequence is `3, 0, 1`, the inner for-loop will not terminate and do\nout-of-bound writes. This is because once `times[j] > new`, the value\n`new` will be added in the current position and the `times[j]` will be\nmoved to `j+1` position, which makes the if-condition always hold.\nMeanwhile, idx will be added one, making the loop keep running without\ntermination and out-of-bound write.\n2. If none of the gts->itime_table[i].time_us is zero, the elements\nwill just be copied without being sorted as described in the comment\n\"Sort times from all tables to one and remove duplicates\".\n\nFor more details, please refer to\nhttps://lore.kernel.org/all/6dd0d822-046c-4dd2-9532-79d7ab96ec05@gmail.com." } ], "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 function is only reachable through `devm_iio_init_iio_gts()` during IIO driver probe/module load on the local system, and its corrupted output is consumed via local sysfs `*_integration_time_available` reads. There is no network- or peer-supplied data anywhere on the path.\nAC:L - For an affected time table the overflow is fully deterministic — no race, no memory-layout luck, no timing window; every probe of the device runs the unbounded memmove loop identically.\nPR:L - No privilege check guards the corruption itself: it occurs automatically during device binding, and the resulting out-of-bounds heap contents are exposed through the world-readable sysfs integration-time attribute that any unprivileged local user can read.\nUI:N - The table is built automatically when the IIO sensor driver probes at boot or module load; no victim action is required, and reading back the leaked heap data is a plain sysfs read.\nS:U - Both the corrupted `times` allocation and the impacted slab neighbours live in the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `iio_gts_us_to_int_micro()` reads `idx` entries from the undersized `times` buffer and those out-of-bounds heap bytes are published to userspace through `iio_gts_avail_times()`/`read_avail`, giving an unbounded kernel heap read primitive rather than a single bounded leak.\nI:H - The unterminated inner loop performs repeated `memmove()`s writing attacker-independent but unbounded data past the end of the kmalloc'd `times` object, overwriting adjacent slab objects — an out-of-bounds write that is a control-flow-hijack primitive per standard heap-corruption analysis.\nA:H - The runaway loop smashes the kernel heap and never terminates on its own, producing slab corruption, oops/panic, or a hang during probe." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/iio/industrialio-gts-helper.c" ], "versions": [ { "version": "38416c28e16890b52fdd5eb73479299ec3f062f3", "lessThan": "31ff8464ef540785344994986a010031410f9ff3", "status": "affected", "versionType": "git" }, { "version": "38416c28e16890b52fdd5eb73479299ec3f062f3", "lessThan": "b5046de32fd1532c3f67065197fc1da82f0b5193", "status": "affected", "versionType": "git" }, { "version": "38416c28e16890b52fdd5eb73479299ec3f062f3", "lessThan": "5acc3f971a01be48d5ff4252d8f9cdb87998cdfb", "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/industrialio-gts-helper.c" ], "versions": [ { "version": "6.4", "status": "affected" }, { "version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.44", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10.3", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11", "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": "6.4", "versionEndExcluding": "6.6.44" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.10.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.11" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/31ff8464ef540785344994986a010031410f9ff3" }, { "url": "https://git.kernel.org/stable/c/b5046de32fd1532c3f67065197fc1da82f0b5193" }, { "url": "https://git.kernel.org/stable/c/5acc3f971a01be48d5ff4252d8f9cdb87998cdfb" } ], "title": "iio: Fix the sorting functionality in iio_gts_build_avail_time_table", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-43825", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:08:48.020961Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:33:24.429Z" } } ] } }