CVE-2022-48891

regulator: da9211: Use irq handler when ready

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%

exploitation probability

0.2%top 86% of all CVEs

observed exploitation

nono source reports it

In the Linux kernel, the following vulnerability has been resolved: regulator: da9211: Use irq handler when ready If the system does not come from reset (like when it is kexec()), the regulator might have an IRQ waiting for us. If we enable the IRQ handler before its structures are ready, we crash. This patch fixes: [ 1.141839] Unable to handle kernel read from unreadable memory at virtual address 0000000000000078 [ 1.316096] Call trace: [ 1.316101] blocking_notifier_call_chain+0x20/0xa8 [ 1.322757] cpu cpu0: dummy supplies not allowed for exclusive requests [ 1.327823] regulator_notifier_call_chain+0x1c/0x2c [ 1.327825] da9211_irq_handler+0x68/0xf8 [ 1.327829] irq_thread+0x11c/0x234 [ 1.327833] kthread+0x13c/0x154

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/02228f6aa6a64d588bc31e3267d05ff184d772eb https://git.kernel.org/stable/c/1c1afcb8839b91c09d211ea304faa269763b1f91 https://git.kernel.org/stable/c/470f6a9175f13a53810734658c35cc5bba33be01 https://git.kernel.org/stable/c/ad1336274f733a7cb1f87b5c5908165a2c14df53 https://git.kernel.org/stable/c/d443308edbfb6e9e757b478af908515110d1efd5 https://git.kernel.org/stable/c/d4aa749e046435f054e94ebf50cad143d6229fae https://git.kernel.org/stable/c/f75cde714e0a67f73ef169aa50d4ed77d04f7236