CVE-2024-35819
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.
How to fix
- linux linux_kernel4.10, 4.15, 4.16, 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84, 6.6.24, 6.7.12, 6.8.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.9.92 ≤ v < 4.10, 4.14.32 ≤ v < 4.15, 4.15.15 ≤ v < 4.16, 4.16.1 ≤ v < 4.19.312, 4.20 ≤ v < 5.4.274, 5.5 ≤ v < 5.10.215, 5.11 ≤ v < 5.15.154, 5.16 ≤ v < 6.1.84, 6.2 ≤ v < 6.6.24, 6.7 ≤ v < 6.7.12, 6.8 ≤ v < 6.8.3, 4.16 | 4.10, 4.15, 4.16, 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84, 6.6.24, 6.7.12, 6.8.3 |
| debian debian_linux | 10.0 | — |
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