CVE-2025-38446 (GCVE-0-2025-38446)
Vulnerability from cvelistv5 – Published: 2025-07-25 15:27 – Updated: 2026-08-05 12:01
VLAI
EPSS
VEX
Title
clk: imx: Fix an out-of-bounds access in dispmix_csr_clk_dev_data
Summary
In the Linux kernel, the following vulnerability has been resolved:
clk: imx: Fix an out-of-bounds access in dispmix_csr_clk_dev_data
When num_parents is 4, __clk_register() occurs an out-of-bounds
when accessing parent_names member. Use ARRAY_SIZE() instead of
hardcode number here.
BUG: KASAN: global-out-of-bounds in __clk_register+0x1844/0x20d8
Read of size 8 at addr ffff800086988e78 by task kworker/u24:3/59
Hardware name: NXP i.MX95 19X19 board (DT)
Workqueue: events_unbound deferred_probe_work_func
Call trace:
dump_backtrace+0x94/0xec
show_stack+0x18/0x24
dump_stack_lvl+0x8c/0xcc
print_report+0x398/0x5fc
kasan_report+0xd4/0x114
__asan_report_load8_noabort+0x20/0x2c
__clk_register+0x1844/0x20d8
clk_hw_register+0x44/0x110
__clk_hw_register_mux+0x284/0x3a8
imx95_bc_probe+0x4f4/0xa70
Severity
7.3 (High)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
5224b189462ff70df328f173b71acfd925092c3c , < fcee75daecc5234ee3482d8cf3518bf021d8a0a5
(git)
Affected: 5224b189462ff70df328f173b71acfd925092c3c , < a956daad67cec454ee985e103e167711fab5b9b8 (git) Affected: 5224b189462ff70df328f173b71acfd925092c3c , < aacc875a448d363332b9df0621dde6d3a225ea9f (git) |
guessed | |
| Linux | Linux |
Affected:
6.10
Unaffected: 0 , < 6.10 (semver) Unaffected: 6.12.39 , ≤ 6.12.* (semver) Unaffected: 6.15.7 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/clk/imx/clk-imx95-blk-ctl.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "fcee75daecc5234ee3482d8cf3518bf021d8a0a5",
"status": "affected",
"version": "5224b189462ff70df328f173b71acfd925092c3c",
"versionType": "git"
},
{
"lessThan": "a956daad67cec454ee985e103e167711fab5b9b8",
"status": "affected",
"version": "5224b189462ff70df328f173b71acfd925092c3c",
"versionType": "git"
},
{
"lessThan": "aacc875a448d363332b9df0621dde6d3a225ea9f",
"status": "affected",
"version": "5224b189462ff70df328f173b71acfd925092c3c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/clk/imx/clk-imx95-blk-ctl.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.10"
},
{
"lessThan": "6.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.39",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.39",
"versionStartIncluding": "6.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.7",
"versionStartIncluding": "6.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "6.10",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: imx: Fix an out-of-bounds access in dispmix_csr_clk_dev_data\n\nWhen num_parents is 4, __clk_register() occurs an out-of-bounds\nwhen accessing parent_names member. Use ARRAY_SIZE() instead of\nhardcode number here.\n\n BUG: KASAN: global-out-of-bounds in __clk_register+0x1844/0x20d8\n Read of size 8 at addr ffff800086988e78 by task kworker/u24:3/59\n Hardware name: NXP i.MX95 19X19 board (DT)\n Workqueue: events_unbound deferred_probe_work_func\n Call trace:\n dump_backtrace+0x94/0xec\n show_stack+0x18/0x24\n dump_stack_lvl+0x8c/0xcc\n print_report+0x398/0x5fc\n kasan_report+0xd4/0x114\n __asan_report_load8_noabort+0x20/0x2c\n __clk_register+0x1844/0x20d8\n clk_hw_register+0x44/0x110\n __clk_hw_register_mux+0x284/0x3a8\n imx95_bc_probe+0x4f4/0xa70"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.3,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The faulty code is reached only through the i.MX95 platform driver probe path driven by the device tree (boot or deferred-probe workqueue), and can be re-triggered locally via module reload or sysfs driver bind; there is no network, adjacent-network, or physical-interface path to it.\nAC:L - The out-of-bounds access is unconditional and deterministic \u2014 every probe of the dispmix CSR block reads `parent_names[3]` past the 3-element array, with no race, timing window, or memory-layout condition involved.\nPR:L - No privileges are needed for the defect to fire, since it executes automatically during driver probe on affected hardware; deliberate re-triggering via bind/unbind or module reload would need local privileges, so at most low privileges are involved.\nUI:N - The out-of-bounds read happens automatically during device probe from the device tree with no victim action required.\nS:U - The out-of-bounds read, the wild dereference, and the corrupted clk parent map are all confined to the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The out-of-bounds pointer is not merely read but handed to `kstrdup_const()`/`kstrdup()`, so an unbounded `strlen()`/copy is performed from an out-of-bounds-derived address and the resulting kernel memory contents are stored as a clk parent name exposed through the clk debugfs interface.\nI:L - The garbage value is persisted into the kernel\u0027s clk parent map, corrupting clock-topology state for a 2-bit mux that can select the bogus index 3; there is no arbitrary-write or control-flow primitive, so the modification is limited.\nA:H - Dereferencing the out-of-bounds value as a string pointer typically faults on an invalid address, producing a kernel oops in the deferred-probe kworker during boot, and even without a fault the display-engine clock is left orphaned and non-functional."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:01:57.158Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/fcee75daecc5234ee3482d8cf3518bf021d8a0a5"
},
{
"url": "https://git.kernel.org/stable/c/a956daad67cec454ee985e103e167711fab5b9b8"
},
{
"url": "https://git.kernel.org/stable/c/aacc875a448d363332b9df0621dde6d3a225ea9f"
}
],
"title": "clk: imx: Fix an out-of-bounds access in dispmix_csr_clk_dev_data",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38446",
"datePublished": "2025-07-25T15:27:28.699Z",
"dateReserved": "2025-04-16T04:51:24.017Z",
"dateUpdated": "2026-08-05T12:01:57.158Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-38446",
"date": "2026-09-19",
"epss": "0.00152",
"percentile": "0.04738"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/clk/imx/clk-imx95-blk-ctl.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "fcee75daecc5234ee3482d8cf3518bf021d8a0a5",
"status": "affected",
"version": "5224b189462ff70df328f173b71acfd925092c3c",
"versionType": "git"
},
{
"lessThan": "a956daad67cec454ee985e103e167711fab5b9b8",
"status": "affected",
"version": "5224b189462ff70df328f173b71acfd925092c3c",
"versionType": "git"
},
{
"lessThan": "aacc875a448d363332b9df0621dde6d3a225ea9f",
"status": "affected",
"version": "5224b189462ff70df328f173b71acfd925092c3c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/clk/imx/clk-imx95-blk-ctl.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.10"
},
{
"lessThan": "6.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.39",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5E0A7E52-CDBF-45E4-8338-F679910D5C1B",
"versionEndExcluding": "6.12.39",
"versionStartIncluding": "6.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F9C46937-5FA9-4335-AD7B-E7FC29453CE1",
"versionEndExcluding": "6.15.7",
"versionStartIncluding": "6.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*",
"matchCriteriaId": "6D4894DB-CCFE-4602-B1BF-3960B2E19A01",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*",
"matchCriteriaId": "09709862-E348-4378-8632-5A7813EDDC86",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*",
"matchCriteriaId": "415BF58A-8197-43F5-B3D7-D1D63057A26E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*",
"matchCriteriaId": "A0517869-312D-4429-80C2-561086E1421C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc5:*:*:*:*:*:*",
"matchCriteriaId": "85421F4E-C863-4ABF-B4B4-E887CC2F7F92",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: imx: Fix an out-of-bounds access in dispmix_csr_clk_dev_data\n\nWhen num_parents is 4, __clk_register() occurs an out-of-bounds\nwhen accessing parent_names member. Use ARRAY_SIZE() instead of\nhardcode number here.\n\n BUG: KASAN: global-out-of-bounds in __clk_register+0x1844/0x20d8\n Read of size 8 at addr ffff800086988e78 by task kworker/u24:3/59\n Hardware name: NXP i.MX95 19X19 board (DT)\n Workqueue: events_unbound deferred_probe_work_func\n Call trace:\n dump_backtrace+0x94/0xec\n show_stack+0x18/0x24\n dump_stack_lvl+0x8c/0xcc\n print_report+0x398/0x5fc\n kasan_report+0xd4/0x114\n __asan_report_load8_noabort+0x20/0x2c\n __clk_register+0x1844/0x20d8\n clk_hw_register+0x44/0x110\n __clk_hw_register_mux+0x284/0x3a8\n imx95_bc_probe+0x4f4/0xa70"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: clk: imx: Se corrige un acceso fuera de los l\u00edmites en dispmix_csr_clk_dev_data. Cuando num_parents es 4, __clk_register() genera un acceso fuera de los l\u00edmites al acceder al miembro parent_names. Use ARRAY_SIZE() en lugar de codificar el n\u00famero. BUG: KASAN: global-out-of-bounds in __clk_register+0x1844/0x20d8 Read of size 8 at addr ffff800086988e78 by task kworker/u24:3/59 Hardware name: NXP i.MX95 19X19 board (DT) Workqueue: events_unbound deferred_probe_work_func Call trace: dump_backtrace+0x94/0xec show_stack+0x18/0x24 dump_stack_lvl+0x8c/0xcc print_report+0x398/0x5fc kasan_report+0xd4/0x114 __asan_report_load8_noabort+0x20/0x2c __clk_register+0x1844/0x20d8 clk_hw_register+0x44/0x110 __clk_hw_register_mux+0x284/0x3a8 imx95_bc_probe+0x4f4/0xa70"
}
],
"id": "CVE-2025-38446",
"lastModified": "2026-07-30T06:23:14.687",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.5,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2025-07-25T16:15:30.100",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/a956daad67cec454ee985e103e167711fab5b9b8"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/aacc875a448d363332b9df0621dde6d3a225ea9f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/fcee75daecc5234ee3482d8cf3518bf021d8a0a5"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-125"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-30T10:29:52+00:00",
"cve": "CVE-2025-38446",
"id": "CVE-2025-38446",
"initial_release_date": "2025-07-25T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: clk: imx: Fix an out-of-bounds access in dispmix_csr_clk_dev_data",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38446.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-30T01:54:46Z",
"cve": "CVE-2025-38446",
"id": "CVE-2025-38446",
"initial_release_date": "2025-07-25T23:22:56Z",
"product_status:first_fixed": "2",
"product_status:known_not_affected": "524",
"product_status:recommended": "154",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2025-38446",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38446.json",
"version": "24"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…