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It was discovered that io_uring PROVIDE_BUFFERS operation allowed the MAX_RW_COUNT limit to be bypassed, which led to negative values being used in mem_rw when reading /proc/<PID>/mem. References: https://www.openwall.com/lists/oss-security/2021/05/11/13 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d1f82808877bb10d3deee7cf3374a4eb3fb582db
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1959566]