Linux 5.6 IORING_OP_MADVISE Race Condition

Linux 5.6 has an issue with IORINGOPMADVISE racing with coredumping. Linux 5.6: IORINGOPMADVISE races with coredumping Last year, I noticed that core dumping iterates over current-mm's VMA list without proper locking, under the assumption that the VMA list can not be modified externally. This...

Linux 5.6 IORING_OP_MADVISE Race Condition

Linux 5.6: IORINGOPMADVISE races with coredumping Last year, I noticed that core dumping iterates over current-mm's VMA list without proper locking, under the assumption that the VMA list can not be modified externally. This assumption was broken by userfaultfd, which can trigger VMA merging...