tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
netfilter: uapi: Avoid undefined left-shift in xt_sctp.h
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>
authored by
Phil Sutter
and committed by
Pablo Neira Ayuso
16416655
0b9173f4
+3
-3
+3
-3
include/uapi/linux/netfilter/xt_sctp.h
+3
-3
include/uapi/linux/netfilter/xt_sctp.h
···
41
41
#define SCTP_CHUNKMAP_SET(chunkmap, type) \
42
42
do { \
43
43
(chunkmap)[type / bytes(__u32)] |= \
44
-
1 << (type % bytes(__u32)); \
44
+
1u << (type % bytes(__u32)); \
45
45
} while (0)
46
46
47
47
#define SCTP_CHUNKMAP_CLEAR(chunkmap, type) \
48
48
do { \
49
49
(chunkmap)[type / bytes(__u32)] &= \
50
-
~(1 << (type % bytes(__u32))); \
50
+
~(1u << (type % bytes(__u32))); \
51
51
} while (0)
52
52
53
53
#define SCTP_CHUNKMAP_IS_SET(chunkmap, type) \
54
54
({ \
55
55
((chunkmap)[type / bytes (__u32)] & \
56
-
(1 << (type % bytes (__u32)))) ? 1: 0; \
56
+
(1u << (type % bytes (__u32)))) ? 1: 0; \
57
57
})
58
58
59
59
#define SCTP_CHUNKMAP_RESET(chunkmap) \