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bpf: Prevent increasing bpf_jit_limit above max
authorLorenz Bauer <lmb@cloudflare.com>
Thu, 14 Oct 2021 14:25:53 +0000 (15:25 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 26 Nov 2021 10:35:59 +0000 (11:35 +0100)
commit5c6fb0e0c73b4b45b15e4c6089ca5ef03197e246
tree8b24816e3bdf6eefc7d256ccc4ec375ee0a25fd5tree | snapshot
parent0e7e6e04ee8338997a7c37ba80b3835a9fbcfe5dcommit | diff
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>
include/linux/filter.h diff | blob | blame | history
kernel/bpf/core.c diff | blob | blame | history
net/core/sysctl_net_core.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git