linux

Alexei Starovoitov f56407fa6e bpf: Remove bpf_lsm_file_mprotect from sleepable list. Technically the bpf programs can sleep while attached to bpf_lsm_file_mprotect, but such programs need to access user memory. So they're in might_fault() category. Which means they cannot be called from file_mprotect lsm hook that takes write lock on mm->mmap_lock. Adjust the test accordingly. Also add might_fault() to __bpf_prog_enter_sleepable() to catch such deadlocks early. Fixes: `1e6c62a882` ("bpf: Introduce sleepable BPF programs") Fixes: `e68a144547` ("selftests/bpf: Add sleepable tests") Reported-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200831201651.82447-1-alexei.starovoitov@gmail.com		History 2020-08-31 23:03:57 +02:00
..
fault-injection	docs: fault-injection: convert docs to ReST and rename to *.rst	2019-06-14 14:21:07 -06:00
ktest	Updates for ktest 5.9	2020-08-10 19:16:26 -07:00
kunit	linux-kselftest-kunit-5.9-rc1	2020-08-05 10:07:39 -07:00
nvdimm	tools/testing/nvdimm: Emulate firmware activation commands	2020-07-25 19:34:48 -06:00
radix-tree	SPDX patches for 5.7-rc1.	2020-04-03 13:12:26 -07:00
scatterlist	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
selftests	bpf: Remove bpf_lsm_file_mprotect from sleepable list.	2020-08-31 23:03:57 +02:00
vsock	SPDX patches for 5.7-rc1.	2020-04-03 13:12:26 -07:00