Hello!
Here is patch series v4 incoming for the explicit capability checking series for issue #7[1].
This patch series will be found on my fork at the link in the footnotes[2], as soon as GitLab is fixed.
Kind regards, Luca
[1] https://git.morello-project.org/morello/kernel/linux/-/issues/7 [2] https://git.morello-project.org/Sevenarth/linux/-/commits/morello/gup-checks...
v4: - rebased onto morello/next - rephrased commit descriptions and notes left in the code - signature of first_iovec_segment has been updated to return a pointer instead of an address and the appropriate changes have been made - read+write checks have been combined together in the same if statement - unlikely check has been removed where appropriate - the USB User Request Block buffer is now checked against both write and read permissions according to the transfer direction as indicated by is_in - a leftover from v2 at io_uring/rsrc.c:1249 has been reverted back to original v3: - rebased onto morello/next - amended commit description for "gup: Add explicit capability checks" - refactored mm/gup.c - refactored lib/iov_iter.c - removed bpf patch - moved USB Request Block explicit check to proc_do_submiturb - removed explicit check in get_futex_key - changed prototype of io_uring_cmd_import_fixed and io_import_fixed to use a pointer type and adjusted the relevant castings - fixed io_uring_cmd_import_fixed prototype for !defined(CONFIG_IO_URING) - refactored explicit check in io_uring/kbuf.c:io_register_pbuf_ring(..) - removed explicit check from io_uring/kbuf.c:io_add_buffers(..) - rephrased the no explicit check needed note in io_sqe_buffer_register - reverted "struct io_mapped_ubuf" to use u64 - removed explicit check from io_uring_cmd_prep - updated TODO for the NVMe driver
Luca Vizzarro (7): gup: Add explicit capability checks iov_iter: Add explicit capability checks usb: core: Fix copy of URB from userspace usb: core: Add explicit capability checks futex: Add explicit capability checks io_uring: Add explicit capability checks nvme: Add TODO for PCuABI implementation
drivers/nvme/host/ioctl.c | 1 + drivers/usb/core/devio.c | 8 ++++++-- include/linux/io_uring.h | 6 +++--- include/linux/pagemap.h | 2 +- io_uring/kbuf.c | 26 +++++++++++++------------- io_uring/net.c | 3 +-- io_uring/rsrc.c | 14 ++++++++++++-- io_uring/rsrc.h | 2 +- io_uring/rw.c | 3 +-- io_uring/uring_cmd.c | 2 +- kernel/futex/core.c | 11 ++++++++--- lib/iov_iter.c | 31 ++++++++++++++++++++++++------- mm/gup.c | 6 ++++-- 13 files changed, 76 insertions(+), 39 deletions(-)