Revision 1292e972fff2b2d81e139e0c2fe5f50249e78c58 authored by Eugene Syromiatnikov on 15 January 2020, 16:35:38 UTC, committed by Jens Axboe on 21 January 2020, 00:00:44 UTC
fds field of struct io_uring_files_update is problematic with regards
to compat user space, as pointer size is different in 32-bit, 32-on-64-bit,
and 64-bit user space. In order to avoid custom handling of compat in
the syscall implementation, make fds __u64 and use u64_to_user_ptr in
order to retrieve it. Also, align the field naturally and check that
no garbage is passed there.
Fixes: c3a31e605620c279 ("io_uring: add support for IORING_REGISTER_FILES_UPDATE")
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
1 parent 44d2827
.gitattributes
*.c diff=cpp
*.h diff=cpp
*.dtsi diff=dts
*.dts diff=dts
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