CVE-2022-49132

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

ath11k: pci: fix crash on suspend if board file is not found

Mario reported that the kernel was crashing on suspend if ath11k was not able

to find a board file:

[ 473.693286] PM: Suspending system (s2idle)

[ 473.693291] printk: Suspending console(s) (use no_console_suspend to debug)

[ 474.407787] BUG: unable to handle page fault for address: 0000000000002070

[ 474.407791] #PF: supervisor read access in kernel mode

[ 474.407794] #PF: error_code(0x0000) - not-present page

[ 474.407798] PGD 0 P4D 0

[ 474.407801] Oops: 0000 [#1] PREEMPT SMP NOPTI

[ 474.407805] CPU: 2 PID: 2350 Comm: kworker/u32:14 Tainted: G W 5.16.0 #248

[...]

[ 474.407868] Call Trace:

[ 474.407870] <TASK>

[ 474.407874] ? _raw_spin_lock_irqsave+0x2a/0x60

[ 474.407882] ? lock_timer_base+0x72/0xa0

[ 474.407889] ? _raw_spin_unlock_irqrestore+0x29/0x3d

[ 474.407892] ? try_to_del_timer_sync+0x54/0x80

[ 474.407896] ath11k_

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References