Public bug reported:
The current epoll implementation in the Jammy kernel utilizes a read-
write semaphore (rwlock_t) to protect the ready event list. While this
allows multiple producers to concurrently add items, it introduces a
scheduling priority inversion vulnerability.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Jammy)
Importance: Undecided
Assignee: Munir Siddiqui (munirsid)
Status: New
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Jammy)
Assignee: (unassigned) => Munir Siddiqui (munirsid)
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2154194
Title:
[Jammy] Priority inversion problem in epoll for rt kernel
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2154194/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
