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| author | Jiri Olsa <jolsa@kernel.org> | 2021-03-26 11:59:00 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-03-26 19:30:11 -0700 |
| commit | 861de02e5f3f2a104eecc5af1d248cb7bf8c5f75 (patch) | |
| tree | 79748704faea37470f54bdef1658b9505d057f86 /lib/vsprintf.c | |
| parent | d6fe1cf89026d3111112ee29ef8d93cd7a8aaa24 (diff) | |
| download | linux-next-861de02e5f3f2a104eecc5af1d248cb7bf8c5f75.tar.gz | |
bpf: Take module reference for trampoline in module
Currently module can be unloaded even if there's a trampoline
register in it. It's easily reproduced by running in parallel:
# while :; do ./test_progs -t module_attach; done
# while :; do rmmod bpf_testmod; sleep 0.5; done
Taking the module reference in case the trampoline's ip is
within the module code. Releasing it when the trampoline's
ip is unregistered.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210326105900.151466-1-jolsa@kernel.org
Diffstat (limited to 'lib/vsprintf.c')
0 files changed, 0 insertions, 0 deletions