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original_kernel/tools/bpf/bpftool
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Pu Lehui 34de8e6e0e bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE 
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
 		2022-11-02 12:05:42 +01:00
..
Documentation
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bash-completion
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skeleton
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.gitignore
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Makefile
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btf.c bpftool: Fix error message of strerror 2022-09-30 15:40:46 -07:00
btf_dumper.c
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cfg.c
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cfg.h
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cgroup.c
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common.c bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE 2022-11-02 12:05:42 +01:00
feature.c
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gen.c bpftool: Fix error message of strerror 2022-09-30 15:40:46 -07:00
iter.c
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jit_disasm.c
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json_writer.c
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json_writer.h
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link.c bpftool: Show parameters of BPF task iterators. 2022-09-28 16:30:08 -07:00
main.c
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main.h
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map.c
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map_perf_ring.c bpftool: Fix error message of strerror 2022-09-30 15:40:46 -07:00
net.c
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netlink_dumper.c
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netlink_dumper.h
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perf.c
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pids.c
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prog.c
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struct_ops.c
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tracelog.c
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xlated_dumper.c
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xlated_dumper.h
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