For the bug description see 2/2. As mentioned there the current problems is because of generic_write_checks(), but there was also a similar case fixed in 5.12, which should have been triggerable by normal write(2)/read(2) and others. It may be better to enforce reexpands as a long term solution, but for now this patchset is quickier and easier to backport. Pavel Begunkov (2): iov_iter: mark truncated iters io_uring: don't retry with truncated iter fs/io_uring.c | 6 ++++++ include/linux/uio.h | 5 ++++- 2 files changed, 10 insertions(+), 1 deletion(-) -- 2.32.0
