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| author | Phil Sutter <phil@nwl.cc> | 2019-12-05 13:35:11 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-12 12:21:17 +0100 |
| commit | 17a7f9d865304997e8bc25eae3e915e83e70e3fa (patch) | |
| tree | be17ec0ab62cb01ec7bec93196629cdfbc5babd7 | |
| parent | 324172d2adcce8d2b927c0d667ca4da6f88bbb92 (diff) | |
| download | linux-stable-17a7f9d865304997e8bc25eae3e915e83e70e3fa.tar.gz linux-stable-17a7f9d865304997e8bc25eae3e915e83e70e3fa.tar.bz2 linux-stable-17a7f9d865304997e8bc25eae3e915e83e70e3fa.zip | |
netfilter: uapi: Avoid undefined left-shift in xt_sctp.h
[ Upstream commit 164166558aacea01b99c8c8ffb710d930405ba69 ]
With 'bytes(__u32)' being 32, a left-shift of 31 may happen which is
undefined for the signed 32-bit value 1. Avoid this by declaring 1 as
unsigned.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | include/uapi/linux/netfilter/xt_sctp.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/uapi/linux/netfilter/xt_sctp.h b/include/uapi/linux/netfilter/xt_sctp.h index 4bc6d1a08781..b4d804a9fccb 100644 --- a/include/uapi/linux/netfilter/xt_sctp.h +++ b/include/uapi/linux/netfilter/xt_sctp.h @@ -41,19 +41,19 @@ struct xt_sctp_info { #define SCTP_CHUNKMAP_SET(chunkmap, type) \ do { \ (chunkmap)[type / bytes(__u32)] |= \ - 1 << (type % bytes(__u32)); \ + 1u << (type % bytes(__u32)); \ } while (0) #define SCTP_CHUNKMAP_CLEAR(chunkmap, type) \ do { \ (chunkmap)[type / bytes(__u32)] &= \ - ~(1 << (type % bytes(__u32))); \ + ~(1u << (type % bytes(__u32))); \ } while (0) #define SCTP_CHUNKMAP_IS_SET(chunkmap, type) \ ({ \ ((chunkmap)[type / bytes (__u32)] & \ - (1 << (type % bytes (__u32)))) ? 1: 0; \ + (1u << (type % bytes (__u32)))) ? 1: 0; \ }) #define SCTP_CHUNKMAP_RESET(chunkmap) \ |