fkie_cve-2024-35819
Vulnerability from fkie_nvd
Published
2024-05-17 14:15
Modified
2024-11-21 09:20
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
soc: fsl: qbman: Use raw spinlock for cgr_lock
smp_call_function always runs its callback in hard IRQ context, even on
PREEMPT_RT, where spinlocks can sleep. So we need to use a raw spinlock
for cgr_lock to ensure we aren't waiting on a sleeping task.
Although this bug has existed for a while, it was not apparent until
commit ef2a8d5478b9 ("net: dpaa: Adjust queue depth on rate change")
which invokes smp_call_function_single via qman_update_cgr_safe every
time a link goes up or down.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: fsl: qbman: Use raw spinlock for cgr_lock\n\nsmp_call_function always runs its callback in hard IRQ context, even on\nPREEMPT_RT, where spinlocks can sleep. So we need to use a raw spinlock\nfor cgr_lock to ensure we aren\u0027t waiting on a sleeping task.\n\nAlthough this bug has existed for a while, it was not apparent until\ncommit ef2a8d5478b9 (\"net: dpaa: Adjust queue depth on rate change\")\nwhich invokes smp_call_function_single via qman_update_cgr_safe every\ntime a link goes up or down."
},
{
"lang": "es",
"value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: soc: fsl: qbman: use spinlock sin formato para cgr_lock smp_call_function siempre ejecuta su devoluci\u00f3n de llamada en un contexto IRQ duro, incluso en PREEMPT_RT, donde los spinlocks pueden dormir. Por lo tanto, necesitamos usar un spinlock sin formato para cgr_lock para asegurarnos de que no estamos esperando una tarea inactiva. Aunque este error ha existido por un tiempo, no fue evidente hasta la confirmaci\u00f3n ef2a8d5478b9 (\"net: dpaa: Ajustar la profundidad de la cola al cambiar la velocidad\") que invoca smp_call_function_single a trav\u00e9s de qman_update_cgr_safe cada vez que un enlace sube o baja."
}
],
"id": "CVE-2024-35819",
"lastModified": "2024-11-21T09:20:58.080",
"metrics": {},
"published": "2024-05-17T14:15:16.907",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2b3fede8225133671ce837c0d284804aa3bc7a02"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/32edca2f03a6cc42c650ddc3ad83d086e3f365d1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/54d26adf64c04f186098b39dba86b86037084baa"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9a3ca8292ce9fdcce122706c28c3f07bc857fe5e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/cd53a8ae5aacb4ecd25088486dea1cd02e74b506"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d6b5aac451c9cc12e43ab7308e0e2ddc52c62c14"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f39d36b7540cf0088ed7ce2de2794f2aa237f6df"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/fbec4e7fed89b579f2483041fabf9650fb0dd6bc"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/ff50716b7d5b7985979a5b21163cd79fb3d21d59"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/2b3fede8225133671ce837c0d284804aa3bc7a02"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/32edca2f03a6cc42c650ddc3ad83d086e3f365d1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/54d26adf64c04f186098b39dba86b86037084baa"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/9a3ca8292ce9fdcce122706c28c3f07bc857fe5e"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/cd53a8ae5aacb4ecd25088486dea1cd02e74b506"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/d6b5aac451c9cc12e43ab7308e0e2ddc52c62c14"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/f39d36b7540cf0088ed7ce2de2794f2aa237f6df"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/fbec4e7fed89b579f2483041fabf9650fb0dd6bc"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/ff50716b7d5b7985979a5b21163cd79fb3d21d59"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
}
],
"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.
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- 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.