Toke Høiland-Jørgensen 83cc18a0c2 bpftool: Don't crash on missing jited insns or ksyms ... [ Upstream commit 5b79bcdf03 ] When the kptr_restrict sysctl is set, the kernel can fail to return jited_ksyms or jited_prog_insns, but still have positive values in nr_jited_ksyms and jited_prog_len. This causes bpftool to crash when trying to dump the program because it only checks the len fields not the actual pointers to the instructions and ksyms. Fix this by adding the missing checks. Fixes: 71bb428fe2 ("tools: bpf: add bpftool") Fixes: f84192ee00 ("tools: bpftool: resolve calls without using imm field") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20191210181412.151226-1-toke@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-01-12 12:21:24 +01:00
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bpftool	bpftool: Don't crash on missing jited insns or ksyms	2020-01-12 12:21:24 +01:00
.gitignore	tools: bpf: account for generated feature/ and libbpf/ directories	2019-08-31 00:38:16 +02:00
Makefile	tools, bpf: Fix build for 'make -s tools/bpf O=<dir>'	2019-12-31 16:45:47 +01:00
Makefile.helpers	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
bpf_asm.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 232	2019-06-19 17:09:06 +02:00
bpf_dbg.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 232	2019-06-19 17:09:06 +02:00
bpf_exp.l	bpf: fix cbpf parser bug for octal numbers	2018-06-03 07:46:55 -07:00
bpf_exp.y	tools: rename tools/net directory to tools/bpf	2017-10-04 21:45:05 -07:00
bpf_jit_disasm.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 232	2019-06-19 17:09:06 +02:00