KP Singh 5222d69642 bpf, lsm: Fix the file_mprotect LSM test. ... The test was previously using an mprotect on the heap memory allocated using malloc and was expecting the allocation to be always using sbrk(2). This is, however, not always true and in certain conditions malloc may end up using anonymous mmaps for heap alloctions. This means that the following condition that is used in the "lsm/file_mprotect" program is not sufficent to detect all mprotect calls done on heap memory: is_heap = (vma->vm_start >= vma->vm_mm->start_brk && vma->vm_end <= vma->vm_mm->brk); The test is updated to use an mprotect on memory allocated on the stack. While this would result in the splitting of the vma, this happens only after the security_file_mprotect hook. So, the condition used in the BPF program holds true. Fixes: 03e54f100d ("bpf: lsm: Add selftests for BPF_PROG_TYPE_LSM") Reported-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: KP Singh <kpsingh@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200402200751.26372-1-kpsingh@chromium.org		2020-04-02 19:42:52 -07:00
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fault-injection
ktest	ktest: Fix typos in ktest.pl	2020-03-09 16:15:27 -04:00
kunit	kunit: run kunit_tool from any directory	2020-02-19 15:58:07 -07:00
nvdimm	remove ioremap_nocache and devm_ioremap_nocache	2020-01-06 09:45:59 +01:00
radix-tree
scatterlist
selftests	bpf, lsm: Fix the file_mprotect LSM test.	2020-04-02 19:42:52 -07:00
vsock	tools: testing: vsock: Test when server is bound but not listening	2020-02-16 19:01:49 -08:00