CVE-2024-35819

Updated:

Description:

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. A vulnerability was found in the cgr_lock in the soc: fsl: qbman subsystem in the Linux Kernel, where an inappropriate locking mechanism was used. A raw spinlock was utilized in a context where a different locking strategy would have been more appropriate.

CVSS3: 5.5

Vendor State

KernelCare State