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.
CVSS3: 5.5
OS | Vendor version | Errata |
---|---|---|
Debian 10 | 4.19.316-1 | DLA-3840-1 |
Debian 10 cloud | 4.19.316-1 | DLA-3840-1 |
Ubuntu 20.04 | 5.4.0-189.209 | USN-6896-1 |
Ubuntu 20.04 AWS | 5.4.0-1128.138 | USN-6896-5 |
Ubuntu 20.04 Azure | 5.4.0-1133.140 | USN-6896-1 |
Ubuntu 22.04 | 5.15.0-116.126 | USN-6898-1 |
Ubuntu 22.04 AWS | 5.15.0-1065.71 | USN-6898-3 |
Ubuntu 22.04 Azure | 5.15.0-1068.77 | USN-6917-1 |
Ubuntu 20.04 HWE Azure | 5.15.0-1068.77~20.04.1 | USN-6917-1 |
Ubuntu 20.04 GCP | 5.4.0-1132.141 | USN-6896-1 |
Ubuntu 24.04 | 6.8.0-35.35 | USN-6816-1 |
OS | Original kernel version | State |
---|---|---|
Debian 10 | |
Planned |
Debian 10 cloud | |
Planned |
Ubuntu 20.04 | |
In Progress |
Ubuntu 20.04 AWS | |
Planned |
Ubuntu 20.04 Azure | |
In Progress |
Ubuntu 22.04 | |
Ready For Release |
Ubuntu 22.04 AWS | |
Planned |
Ubuntu 22.04 Azure | |
Planned |
Ubuntu 20.04 HWE Azure | |
Planned |
Ubuntu 20.04 GCP | |
In Progress |
Ubuntu 24.04 | |
Ready For Release |