Blame SOURCES/0006-evdev-fix-off-by-one-error-in-decode_bitset.patch
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From fdc95e89441ba6f2d39f5f6f3e2ac20933245b8d Mon Sep 17 00:00:00 2001
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From: Eugene Syromiatnikov <esyr@redhat.com>
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Date: Thu, 20 Dec 2018 16:35:27 +0100
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Subject: [PATCH 06/27] evdev: fix off-by-one error in decode_bitset
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* evdev.c (decode_bitset): Decrement sorted/indexed xlat's size by one
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in order to account for guarding XLAT_END, as other sorted/indexed xlat
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wrappers do.
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Fixes: v4.23~261 "evdev: support various types of xlats in decode_bitset"
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---
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evdev.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/evdev.c b/evdev.c
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index cae2ef1..957d0e2 100644
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--- a/evdev.c
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+++ b/evdev.c
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@@ -208,7 +208,7 @@ decode_bitset_(struct tcb *const tcp, const kernel_ulong_t arg,
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#define decode_bitset(tcp_, arg_, decode_nr_, max_nr_, dflt_, xt_) \
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decode_bitset_((tcp_), (arg_), (decode_nr_), (max_nr_), \
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- (dflt_), ARRAY_SIZE(decode_nr_), (xt_))
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+ (dflt_), ARRAY_SIZE(decode_nr_) - 1, (xt_))
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# ifdef EVIOCGMTSLOTS
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static int
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--
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2.1.4
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