Eric Lee / smarc-fsl-linux-kernel

05 Oct, 2017

1 commit

  • 58052a74d   selftests/seccomp: Support glibc 2.26 siginfo_t.h ... Browse Code »

    commit 10859f3855db4c6f10dc7974ff4b3a292f3de8e0 upstream.

    The 2.26 release of glibc changed how siginfo_t is defined, and the earlier
    work-around to using the kernel definition are no longer needed. The old
    way needs to stay around for a while, though.

    Reported-by: Seth Forshee
    Cc: Andy Lutomirski
    Cc: Will Drewry
    Cc: Shuah Khan
    Cc: linux-kselftest@vger.kernel.org
    Signed-off-by: Kees Cook
    Tested-by: Seth Forshee
    Signed-off-by: Shuah Khan
    Signed-off-by: Greg Kroah-Hartman

    Kees Cook
     

15 Jun, 2016

1 commit

  • 58d0a862f   seccomp: add tests for ptrace hole ... Browse Code »

    One problem with seccomp was that ptrace could be used to change a
    syscall after seccomp filtering had completed. This was a well documented
    limitation, and it was recommended to block ptrace when defining a filter
    to avoid this problem. This can be quite a limitation for containers or
    other places where ptrace is desired even under seccomp filters.

    This adds tests for both SECCOMP_RET_TRACE and PTRACE_SYSCALL manipulations.

    Signed-off-by: Kees Cook
    Cc: Andy Lutomirski

    Kees Cook
     

23 May, 2016

1 commit

  • 64e2a42bc   parisc: Add ARCH_TRACEHOOK and regset support ... Browse Code »

    By adding TRACEHOOK support we now get a clean user interface to access
    registers via PTRACE_GETREGS, PTRACE_SETREGS, PTRACE_GETFPREGS and
    PTRACE_SETFPREGS.

    The user-visible regset struct user_regs_struct and user_fp_struct are
    modelled similiar to x86 and can be accessed via PTRACE_GETREGSET.

    Signed-off-by: Helge Deller

    Helge Deller
     

13 May, 2016

1 commit

  • 0ce105bf9   selftests/seccomp: add MIPS self-test support ... Browse Code »

    This adds self-test support on MIPS, based on RFC patch from Kees Cook.
    Modifications from the RFC:
    - support the O32 syscall which passes the real syscall number in a0.
    - Use PTRACE_{GET,SET}REGS
    - Because SYSCALL_NUM and SYSCALL_RET are the same register, it is not
    possible to test modifying the syscall return value when skipping,
    since both would need to set the same register. Therefore modify that
    test case to just detect the skipped test.
    Tested on MIPS32r2 / MIPS64r2 with O32, N32 and N64 userlands.

    Signed-off-by: Matt Redfearn
    Acked-by: Kees Cook
    Cc: Andy Lutomirski
    Cc: Shuah Khan
    Cc: Will Drewry
    Cc: IMG-MIPSLinuxKerneldevelopers@imgtec.com
    Cc: linux-kernel@vger.kernel.org
    Cc: linux-kselftest@vger.kernel.org
    Patchwork: https://patchwork.linux-mips.org/patch/12977/
    Signed-off-by: Ralf Baechle

    Matt Redfearn
     

30 Mar, 2016

2 commits

26 Feb, 2016

1 commit

  • 8c749ce93   selftests: create test-specific kconfig fragments ... Browse Code »

    Create the config file in each directory of testcase which need
    more kernel configuration than the default defconfig. User could
    use these configs with merge_config.sh script:

    Enable config for specific testcase:
    (export ARCH=xxx #for cross compiling)
    ./scripts/kconfig/merge_config.sh .config \
    tools/testing/selftests/xxx/config

    Enable configs for all testcases:
    (export ARCH=xxx #for cross compiling)
    ./scripts/kconfig/merge_config.sh .config \
    tools/testing/selftests/*/config

    Signed-off-by: Bamvor Jian Zhang
    Reviewed-by: Shuah Khan
    Signed-off-by: Shuah Khan

    Bamvor Jian Zhang
     

18 Jan, 2016

1 commit

  • 12768c1e2   Merge tag 'linux-kselftest-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel… ... Browse Code »

    …/git/shuah/linux-kselftest

    Pull kselftest updates from Shuah Khan:
    "This 14 patch update:

    - adds a new test for intel_pstate driver
    - adds empty string and async test cases to firmware class tests
    - fixes and cleans up several existing tests"

    * tag 'linux-kselftest-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
    selftests: firmware: add empty string and async tests
    firmware: actually return NULL on failed request_firmware_nowait()
    test: firmware_class: add asynchronous request trigger
    test: firmware_class: use kstrndup() where appropriate
    test: firmware_class: report errors properly on failure
    selftests/seccomp: fix 32-bit build warnings
    add breakpoints/.gitignore
    add ptrace/.gitignore
    update .gitignore in selftests/timers
    update .gitignore in selftests/vm
    tools, testing, add test for intel_pstate driver
    selftest/ipc: actually test it
    selftests/capabilities: actually test it
    selftests/capabilities: clean up for Makefile

    Linus Torvalds
     

11 Jan, 2016

1 commit

  • 4a0b88070   selftests/seccomp: Remove the need for HAVE_ARCH_TRACEHOOK ... Browse Code »

    Some architectures do not implement PTRACE_GETREGSET nor
    PTRACE_SETREGSET (required by HAVE_ARCH_TRACEHOOK) but only implement
    PTRACE_GETREGS and PTRACE_SETREGS (e.g. User-mode Linux).

    This improve seccomp selftest portability for architectures without
    HAVE_ARCH_TRACEHOOK support by defining a new trigger HAVE_GETREGS. For
    now, this is only enabled for i386 and x86_64 architectures. This is
    required to be able to run this tests on User-mode Linux.

    Signed-off-by: Mickaël Salaün
    Cc: Jeff Dike
    Cc: Richard Weinberger
    Cc: Kees Cook
    Cc: Andy Lutomirski
    Cc: Will Drewry
    Cc: Shuah Khan
    Cc: Meredydd Luff
    Cc: David Drysdale
    Signed-off-by: Richard Weinberger
    Acked-by: Kees Cook

    Mickaël Salaün
     

08 Jan, 2016

1 commit

19 Nov, 2015

1 commit

  • 2ce47b44b   selftests/seccomp: Get page size from sysconf ... Browse Code »

    The commit fd88d16c58c2 ("selftests/seccomp: Be more precise with
    syscall arguments.") use PAGE_SIZE directly which lead to build
    failure on arm64.

    Replace it with generic interface(sysconf(_SC_PAGESIZE)) to fix this
    failure.

    Build and test successful on x86_64 and arm64.

    Signed-off-by: Bamvor Jian Zhang
    Acked-by: Kees Cook
    Tested-by: Michael Ellerman
    Signed-off-by: Shuah Khan

    Bamvor Jian Zhang
     

03 Nov, 2015

1 commit

  • fd88d16c5   selftests/seccomp: Be more precise with syscall arguments. ... Browse Code »

    Certain syscall emulation layers strictly check that the number of
    arguments match what the syscall handler expects. The KILL_one_arg_one and
    KILL_one_arg_six tests passed more parameters than expected to various
    syscalls, causing failures in this emulation mode. Instead, test using
    syscalls that take the appropriate number of arguments.

    Signed-off-by: Robert Sesek
    Signed-off-by: Kees Cook
    Signed-off-by: Shuah Khan

    Robert Sesek
     

16 Oct, 2015

1 commit

  • 256d0afb1   selftests/seccomp: build and pass on arm64 ... Browse Code »

    Changing arm64 syscalls is done via a specific register set, more like s390
    than like arm (specific ptrace call) and x86 (part of general registers).
    Since (restarting) poll doesn't exist on arm64, switch to using nanosleep
    for testing restart_syscall. And since it looks like the syscall ABI is
    inconsistent on arm-compat, so we must work around it (and document it) in
    the test.

    Signed-off-by: Kees Cook
    Signed-off-by: Shuah Khan

    Kees Cook
     

15 Sep, 2015

1 commit

  • b623c4daa   selftests/seccomp: add support for s390 ... Browse Code »

    This adds support for s390 to the seccomp selftests. Some improvements
    were made to enhance the accuracy of failure reporting, and additional
    tests were added to validate assumptions about the currently traced
    syscall. Also adds early asserts for running on older kernels to avoid
    noise when the seccomp syscall is not implemented.

    Signed-off-by: Kees Cook
    Signed-off-by: Shuah Khan

    Kees Cook
     

30 Jul, 2015

2 commits

  • 5d83c2b37   selftests/seccomp: Add powerpc support ... Browse Code »

    Wire up the syscall number and regs so the tests work on powerpc.

    With the powerpc kernel support just merged, all tests pass on ppc64,
    ppc64 (compat), ppc64le, ppc, ppc64e and ppc64e (compat).

    Acked-by: Kees Cook
    Signed-off-by: Michael Ellerman

    Michael Ellerman
     
  • c385d0db3   selftests/seccomp: Make seccomp tests work on big endian ... Browse Code »

    The seccomp_bpf test uses BPF_LD|BPF_W|BPF_ABS to load 32-bit values
    from seccomp_data->args. On big endian machines this will load the high
    word of the argument, which is not what the test wants.

    Borrow a hack from samples/seccomp/bpf-helper.h which changes the offset
    on big endian to account for this.

    Signed-off-by: Michael Ellerman
    Acked-by: Kees Cook

    Michael Ellerman
     

18 Jun, 2015

1 commit

  • c99ee51a9   selftests: add seccomp suite ... Browse Code »

    This imports the existing seccomp test suite into the kernel's selftests
    tree. It contains extensive testing of seccomp features and corner cases.
    There remain additional tests to move into the kernel tree, but they have
    not yet been ported to all the architectures seccomp supports:
    https://github.com/redpig/seccomp/tree/master/tests

    Signed-off-by: Kees Cook
    Signed-off-by: Shuah Khan

    Kees Cook