fkie_cve-2022-49957
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-06-18 13:46
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
kcm: fix strp_init() order and cleanup
strp_init() is called just a few lines above this csk->sk_user_data
check, it also initializes strp->work etc., therefore, it is
unnecessary to call strp_done() to cancel the freshly initialized
work.
And if sk_user_data is already used by KCM, psock->strp should not be
touched, particularly strp->work state, so we need to move strp_init()
after the csk->sk_user_data check.
This also makes a lockdep warning reported by syzbot go away.
References
Impacted products
Vendor | Product | Version |
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{ "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkcm: fix strp_init() order and cleanup\n\nstrp_init() is called just a few lines above this csk-\u003esk_user_data\ncheck, it also initializes strp-\u003ework etc., therefore, it is\nunnecessary to call strp_done() to cancel the freshly initialized\nwork.\n\nAnd if sk_user_data is already used by KCM, psock-\u003estrp should not be\ntouched, particularly strp-\u003ework state, so we need to move strp_init()\nafter the csk-\u003esk_user_data check.\n\nThis also makes a lockdep warning reported by syzbot go away." }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: kcm: correcci\u00f3n del orden y la limpieza de strp_init(). strp_init() se llama solo unas l\u00edneas por encima de la comprobaci\u00f3n csk-\u0026gt;sk_user_data; tambi\u00e9n inicializa strp-\u0026gt;work, etc., por lo que no es necesario llamar a strp_done() para cancelar el trabajo reci\u00e9n inicializado. Si KCM ya utiliza sk_user_data, no se debe modificar psock-\u0026gt;strp, en particular el estado strp-\u0026gt;work, por lo que es necesario mover strp_init() despu\u00e9s de la comprobaci\u00f3n csk-\u0026gt;sk_user_data. Esto tambi\u00e9n elimina la advertencia de lockdep reportada por syzbot." } ], "id": "CVE-2022-49957", "lastModified": "2025-06-18T13:46:52.973", "metrics": {}, "published": "2025-06-18T11:15:22.897", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0946ff31d1a8778787bf6708beb20f38715267cc" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1b6666964ca1de93a7bf06e122bcf3616dbd33a9" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/473f394953216614087f4179e55cdf0cf616a13b" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/55fb8c3baa8071c5d533a9ad48624e44e2a04ef5" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8fc29ff3910f3af08a7c40a75d436b5720efe2bf" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a8a0c321319ad64a5427d6172cd9c23b4d6ca1e8" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f865976baa85915c7672f351b74d5974b93215f6" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis" }
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Sightings
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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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