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| author | Lorenz Bauer <lmb@cloudflare.com> | 2021-10-14 15:25:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-26 11:48:20 +0100 |
| commit | 045644540e75a9898a49003e91e24d609f1897b0 (patch) | |
| tree | f50dc6edecbe3da14d368732f38e36d5fd58ed73 /include | |
| parent | 524489b3409198f35b0202492a27b899946a5abc (diff) | |
| download | linux-045644540e75a9898a49003e91e24d609f1897b0.tar.gz linux-045644540e75a9898a49003e91e24d609f1897b0.tar.bz2 linux-045644540e75a9898a49003e91e24d609f1897b0.zip | |
bpf: Prevent increasing bpf_jit_limit above max
[ Upstream commit fadb7ff1a6c2c565af56b4aacdd086b067eed440 ]
Restrict bpf_jit_limit to the maximum supported by the arch's JIT.
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211014142554.53120-4-lmb@cloudflare.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/filter.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h index 0837d904405a..05be3d84655e 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -600,6 +600,7 @@ void bpf_warn_invalid_xdp_action(u32 act); extern int bpf_jit_enable; extern int bpf_jit_harden; extern long bpf_jit_limit; +extern long bpf_jit_limit_max; typedef void (*bpf_jit_fill_hole_t)(void *area, unsigned int size); |