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.
Metrics
Affected Vendors & Products
References
History
Mon, 05 May 2025 08:15:00 +0000
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ssvc
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-05-04T12:55:49.933Z
Reserved: 2024-05-17T12:19:12.343Z
Link: CVE-2024-35819

Updated: 2024-08-02T03:21:48.550Z

Status : Awaiting Analysis
Published: 2024-05-17T14:15:16.907
Modified: 2024-11-21T09:20:58.080
Link: CVE-2024-35819
