[PATCH 5.4 0/8] 5.4.116-rc1 review

[Greg Kroah-Hartman]

This is the start of the stable review cycle for the 5.4.116 release.
There are 8 patches in this series, all will be posted as a response
to this one.  If anyone has any issues with these being applied, please
let me know.

Responses should be made by Sun, 02 May 2021 14:19:04 +0000.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.116-rc1.gz
or in the git tree and branch at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
    Linux 5.4.116-rc1

Daniel Borkmann <daniel@xxxxxxxxxxxxx>
    bpf: Update selftests to reflect new error states

Daniel Borkmann <daniel@xxxxxxxxxxxxx>
    bpf: Tighten speculative pointer arithmetic mask

Daniel Borkmann <daniel@xxxxxxxxxxxxx>
    bpf: Move sanitize_val_alu out of op switch

Daniel Borkmann <daniel@xxxxxxxxxxxxx>
    bpf: Refactor and streamline bounds check into helper

Daniel Borkmann <daniel@xxxxxxxxxxxxx>
    bpf: Improve verifier error messages for users

Daniel Borkmann <daniel@xxxxxxxxxxxxx>
    bpf: Rework ptr_limit into alu_limit and add common error path

Daniel Borkmann <daniel@xxxxxxxxxxxxx>
    bpf: Ensure off_reg has no mixed signed bounds for all types

Daniel Borkmann <daniel@xxxxxxxxxxxxx>
    bpf: Move off_reg into sanitize_ptr_alu


-------------

Diffstat:

 Makefile                                           |   4 +-
 kernel/bpf/verifier.c                              | 233 ++++++++++++++-------
 .../selftests/bpf/verifier/bounds_deduction.c      |  21 +-
 .../bpf/verifier/bounds_mix_sign_unsign.c          |  13 --
 tools/testing/selftests/bpf/verifier/unpriv.c      |   2 +-
 .../selftests/bpf/verifier/value_ptr_arith.c       |   6 +-
 6 files changed, 175 insertions(+), 104 deletions(-)