fkie_cve-2022-49180
Vulnerability from fkie_nvd
Published
2025-02-26 07:00
Modified
2025-02-26 07:00
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
LSM: general protection fault in legacy_parse_param
The usual LSM hook "bail on fail" scheme doesn't work for cases where
a security module may return an error code indicating that it does not
recognize an input. In this particular case Smack sees a mount option
that it recognizes, and returns 0. A call to a BPF hook follows, which
returns -ENOPARAM, which confuses the caller because Smack has processed
its data.
The SELinux hook incorrectly returns 1 on success. There was a time
when this was correct, however the current expectation is that it
return 0 on success. This is repaired.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLSM: general protection fault in legacy_parse_param\n\nThe usual LSM hook \"bail on fail\" scheme doesn\u0027t work for cases where\na security module may return an error code indicating that it does not\nrecognize an input. In this particular case Smack sees a mount option\nthat it recognizes, and returns 0. A call to a BPF hook follows, which\nreturns -ENOPARAM, which confuses the caller because Smack has processed\nits data.\n\nThe SELinux hook incorrectly returns 1 on success. There was a time\nwhen this was correct, however the current expectation is that it\nreturn 0 on success. This is repaired."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: LSM: error de protecci\u00f3n general en legacy_parse_param El esquema habitual de gancho LSM \"bail on fail\" no funciona para los casos en los que un m\u00f3dulo de seguridad puede devolver un c\u00f3digo de error que indica que no reconoce una entrada. En este caso particular, Smack ve una opci\u00f3n de montaje que reconoce y devuelve 0. Sigue una llamada a un gancho BPF, que devuelve -ENOPARAM, lo que confunde al llamador porque Smack ha procesado sus datos. El gancho SELinux devuelve incorrectamente 1 en caso de \u00e9xito. Hubo un momento en que esto era correcto, sin embargo, la expectativa actual es que devuelva 0 en caso de \u00e9xito. Esto se ha reparado."
}
],
"id": "CVE-2022-49180",
"lastModified": "2025-02-26T07:00:55.137",
"metrics": {},
"published": "2025-02-26T07:00:55.137",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/00fc07fa0b4a004711b6e1a944f0d2e46f7093b7"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2784604c8c6fc523248f8f80a421c313a9d790b7"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/cadae7c5e477aaafcba819b8e4a3d1c1a1503b62"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/ddcdda888e14ca451b3ee83d11b65b2a9c8e783b"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/ecff30575b5ad0eda149aadad247b7f75411fd47"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f3f93a1aaafc3032e0a9655fb43deccfb3e953a3"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
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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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