fkie_cve-2022-49047
Vulnerability from fkie_nvd
Published
2025-02-26 07:00
Modified
2025-03-24 17:45
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ep93xx: clock: Fix UAF in ep93xx_clk_register_gate()
arch/arm/mach-ep93xx/clock.c:154:2: warning: Use of memory after it is freed [clang-analyzer-unix.Malloc]
arch/arm/mach-ep93xx/clock.c:151:2: note: Taking true branch
if (IS_ERR(clk))
^
arch/arm/mach-ep93xx/clock.c:152:3: note: Memory is released
kfree(psc);
^~~~~~~~~~
arch/arm/mach-ep93xx/clock.c:154:2: note: Use of memory after it is freed
return &psc->hw;
^ ~~~~~~~~
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | 5.18 | |
| linux | linux_kernel | 5.18 |
{
"configurations": [
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"nodes": [
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E22C86CB-06CD-4D16-AB2A-F21EE8199262",
"versionEndExcluding": "5.17.4",
"versionStartIncluding": "5.16",
"vulnerable": true
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nep93xx: clock: Fix UAF in ep93xx_clk_register_gate()\n\narch/arm/mach-ep93xx/clock.c:154:2: warning: Use of memory after it is freed [clang-analyzer-unix.Malloc]\narch/arm/mach-ep93xx/clock.c:151:2: note: Taking true branch\nif (IS_ERR(clk))\n^\narch/arm/mach-ep93xx/clock.c:152:3: note: Memory is released\nkfree(psc);\n^~~~~~~~~~\narch/arm/mach-ep93xx/clock.c:154:2: note: Use of memory after it is freed\nreturn \u0026psc-\u003ehw;\n^ ~~~~~~~~"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ep93xx: clock: Arreglar UAF en ep93xx_clk_register_gate() arch/arm/mach-ep93xx/clock.c:154:2: advertencia: Uso de memoria despu\u00e9s de que se libera [clang-analyzer-unix.Malloc] arch/arm/mach-ep93xx/clock.c:151:2: nota: Tomando rama verdadera si (IS_ERR(clk)) ^ arch/arm/mach-ep93xx/clock.c:152:3: nota: Se libera memoria kfree(psc); ^~~~~~~~~~ arch/arm/mach-ep93xx/clock.c:154:2: nota: Uso de memoria despu\u00e9s de que se libera return \u0026amp;psc-\u0026gt;hw; ^ ~~~~~~~~"
}
],
"id": "CVE-2022-49047",
"lastModified": "2025-03-24T17:45:00.503",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
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},
"published": "2025-02-26T07:00:41.983",
"references": [
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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"url": "https://git.kernel.org/stable/c/0f12166872da46c6b57ba2f1314bbf310b3bf017"
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
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"value": "CWE-416"
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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