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CVE-2024-26606

In the Linux kernel, the following vulnerability has been resolved: binder: signal epoll threads of self-work In (e)poll mode, threads often depend on I/O even…

Impact

In the Linux kernel, the following vulnerability has been resolved: binder: signal epoll threads of self-work In (e)poll mode, threads often depend on I/O events to determine when data is ready for consumption. Within binder, a thread may initiate a command via BINDER_WRITE_READ without a read buffer and then make use of epoll_wait() or similar to consume any responses afterwards. It is then crucial that epoll threads are signaled via wakeup when they queue their own work. Otherwise, they risk waiting indefinitely for an event leaving their work unhandled. What is worse, subsequent commands won't trigger a wakeup either as the thread has pending work.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 2.6.29 before 4.19.307
from 4.20.0 before 5.4.269
from 5.5.0 before 5.10.210
from 5.11.0 before 5.15.149
from 5.16.0 before 6.1.79
from 6.2.0 before 6.6.18

References