Pu Lehui 8c80b2fca4 bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE ... [ Upstream commit 34de8e6e0e1f66e431abf4123934a2581cb5f133 ] When using bpftool to pin {PROG, MAP, LINK} without FILE, segmentation fault will occur. The reson is that the lack of FILE will cause strlen to trigger NULL pointer dereference. The corresponding stacktrace is shown below: do_pin do_pin_any do_pin_fd mount_bpffs_for_pin strlen(name) <- NULL pointer dereference Fix it by adding validation to the common process. Fixes: 75a1e792c3 ("tools: bpftool: Allow all prog/map handles for pinning objects") Signed-off-by: Pu Lehui <pulehui@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20221102084034.3342995-1-pulehui@huaweicloud.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-11-16 09:57:08 +01:00
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bpftool	bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE	2022-11-16 09:57:08 +01:00
resolve_btfids	tools/resolve_btfids: Do not print any commands when building silently	2022-02-08 18:30:39 +01:00
runqslower	bpf, runqslower: include proper uapi/bpf.h	2020-05-09 18:01:33 -07:00
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
bpf_asm.c	docs: networking: convert filter.txt to ReST	2020-04-28 14:39:46 -07:00
bpf_dbg.c	docs: networking: convert filter.txt to ReST	2020-04-28 14:39:46 -07:00
bpf_exp.l	bpf: fix cbpf parser bug for octal numbers	2018-06-03 07:46:55 -07:00
bpf_exp.y	tools, bpf_asm: Warn when jumps are out of range	2019-11-07 16:01:34 +01:00
bpf_jit_disasm.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 232	2019-06-19 17:09:06 +02:00
Makefile	tools: bpf: Fix error in 'make -C tools/ bpf_install'	2021-07-25 14:36:21 +02:00
Makefile.helpers	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00