{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-38573", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.025Z", "datePublished": "2025-08-19T17:02:53.008Z", "dateUpdated": "2026-08-05T12:03:01.778Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:03:01.778Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: cs42l43: Property entry should be a null-terminated array\n\nThe software node does not specify a count of property entries, so the\narray must be null-terminated.\n\nWhen unterminated, this can lead to a fault in the downstream cs35l56\namplifier driver, because the node parse walks off the end of the\narray into unknown memory." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H", "baseScore": 7.3, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The flaw lives in the cs42l43 SPI bridge probe path and is consumed by the on-board cs35l56 codec driver on the same machine; there is no network, adjacent-network, or removable-device ingress, so reaching it requires local presence on the affected laptop.\nAC:L - On affected hardware the array is unconditionally unterminated, so `property_entry_get()` reads out of bounds deterministically on every property lookup for the bridged amp — no race, timing window, or memory grooming is needed for the OOB access itself.\nPR:L - The OOB walk executes automatically during device probe with no attacker-supplied input, so an ordinary unprivileged local account on the machine is the lowest bar that meaningfully applies; no capability check gates the code path itself.\nUI:N - The bad software node is created and parsed during driver probe at boot or module load; no victim action such as opening a file or mounting a filesystem is required.\nS:U - The out-of-bounds read and any resulting fault are entirely within the kernel's own security authority — no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - The walk is unbounded — it continues until it happens to find a zero `.name` — and passes attacker-uninfluenced heap words to `strcmp()` as pointers, producing an unbounded slab OOB read plus dereference of effectively arbitrary kernel addresses rather than a few strictly bounded bytes.\nI:L - There is no OOB write or OOB free (`property_entries_free()` is unreachable since the node is not `allocated`, and the memcpy is length-checked), but a bogus entry accepted from past-the-end memory can supply a wrong speaker ID that changes the DSP firmware file selected via `\"%04x%04x-spkid%d\"`, giving limited modification of driver state.\nA:H - Dereferencing the garbage `.name` pointer in `strcmp()` faults in kernel context, which is exactly the failure the commit and bugzilla 220371 describe — an oops during probe that leaves audio and potentially the boot unusable." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/spi/spi-cs42l43.c" ], "versions": [ { "version": "0ca645ab5b1528666f6662a0e620140355b5aea3", "lessThan": "674328102baad76c7a06628efc01974ece5ae27f", "status": "affected", "versionType": "git" }, { "version": "0ca645ab5b1528666f6662a0e620140355b5aea3", "lessThan": "9f0035ae38d2571f5ddedc829d74492013caa625", "status": "affected", "versionType": "git" }, { "version": "0ca645ab5b1528666f6662a0e620140355b5aea3", "lessThan": "139b5df757a0aa436f763b0038e0b73808d2f4b6", "status": "affected", "versionType": "git" }, { "version": "0ca645ab5b1528666f6662a0e620140355b5aea3", "lessThan": "ffcfd071eec7973e58c4ffff7da4cb0e9ca7b667", "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/spi/spi-cs42l43.c" ], "versions": [ { "version": "6.11", "status": "affected" }, { "version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.42", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.15.10", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.16.1", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17", "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": "6.11", "versionEndExcluding": "6.12.42" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.15.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.16.1" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.17" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/674328102baad76c7a06628efc01974ece5ae27f" }, { "url": "https://git.kernel.org/stable/c/9f0035ae38d2571f5ddedc829d74492013caa625" }, { "url": "https://git.kernel.org/stable/c/139b5df757a0aa436f763b0038e0b73808d2f4b6" }, { "url": "https://git.kernel.org/stable/c/ffcfd071eec7973e58c4ffff7da4cb0e9ca7b667" } ], "title": "spi: cs42l43: Property entry should be a null-terminated array", "x_generator": { "engine": "bippy-1.2.0" } } } }