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(parent: e6132d0) | patch
bpf: Fix fds_example SIGSEGV error
authorWenbo Zhang <ethercflow@gmail.com>
Fri, 10 Jul 2020 09:20:35 +0000 (05:20 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 19 Aug 2020 06:23:39 +0000 (08:23 +0200)
commit181740eddae2ce9c69474ff61ce324a1779533e5
treeb6cf9421a92632eed6a5286fbebd6fb3a047eae4tree
parente6132d0ce6f2ce0227722e42d236e30db3763ceacommit | diff
bpf: Fix fds_example SIGSEGV error

[ Upstream commit eef8a42d6ce087d1c81c960ae0d14f955b742feb ]

The `BPF_LOG_BUF_SIZE`'s value is `UINT32_MAX >> 8`, so define an array
with it on stack caused an overflow.

Signed-off-by: Wenbo Zhang <ethercflow@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200710092035.28919-1-ethercflow@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
samples/bpf/fds_example.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)