linux-stable/net/sctp
Yu-Chun Lin 606572eb22 sctp: Fix undefined behavior in left shift operation
According to the C11 standard (ISO/IEC 9899:2011, 6.5.7):
"If E1 has a signed type and E1 x 2^E2 is not representable in the result
type, the behavior is undefined."

Shifting 1 << 31 causes signed integer overflow, which leads to undefined
behavior.

Fix this by explicitly using '1U << 31' to ensure the shift operates on
an unsigned type, avoiding undefined behavior.

Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com>
Link: https://patch.msgid.link/20250218081217.3468369-1-eleanor15x@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19 18:55:40 -08:00
..
associola.c
auth.c
bind_addr.c
chunk.c
debug.c
diag.c
endpointola.c
input.c
inqueue.c
ipv6.c
Kconfig
Makefile
objcnt.c
offload.c
output.c
outqueue.c
primitive.c
proc.c
protocol.c
sm_make_chunk.c
sm_sideeffect.c
sm_statefuns.c
sm_statetable.c
socket.c
stream_interleave.c
stream_sched_fc.c
stream_sched_prio.c
stream_sched_rr.c
stream_sched.c
stream.c
sysctl.c
transport.c
tsnmap.c
ulpevent.c
ulpqueue.c