Bugzilla – Bug 1220450
VUL-0: CVE-2024-26606: kernel: binder: signal epoll threads of self-work
Last modified: 2024-07-09 07:48:59 UTC
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. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-26606 https://www.cve.org/CVERecord?id=CVE-2024-26606 https://lore.kernel.org/linux-cve-announce/2024022620-CVE-2024-26606-64b6@gregkh/T/#u Patch: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=97830f3c3088638ff90b20dfba2eb4d487bf14d7
Closing since all code streams are not affected.