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authorDmitry Valter <d-valter@yandex-team.ru>2022-02-22 06:40:22 +0000
committerDmitry Valter <dvalter@protonmail.com>2022-02-22 06:40:22 +0000
commitcf2595dfc0b446dd9bd5311d972cfb53b5567df8 (patch)
treea7208669c1986c51497fa10771e68515c26324c1
parentd85fe1a2164daf3cb23f48e6b9fd1ec2d97c87bc (diff)
fib: fix mpls db label overflow
mpls fib DB size was 2^20 instead of intended 2^21. Therefore large mpls labels caused DB to overflow and write to other tables or some random objects. Or crash with ASAN. Sometimes. Type: fix Signed-off-by: Dmitry Valter <d-valter@yandex-team.ru> Change-Id: I6db65680037a266fe47e8213464a0c16de63c06c
-rw-r--r--src/vnet/fib/mpls_fib.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/vnet/fib/mpls_fib.h b/src/vnet/fib/mpls_fib.h
index e7ea5d583d1..e9fee9990ac 100644
--- a/src/vnet/fib/mpls_fib.h
+++ b/src/vnet/fib/mpls_fib.h
@@ -31,7 +31,7 @@
* Type exposure is to allow the DP fast/inlined access
*/
#define MPLS_FIB_KEY_SIZE 21
-#define MPLS_FIB_DB_SIZE (1 << (MPLS_FIB_KEY_SIZE-1))
+#define MPLS_FIB_DB_SIZE (1 << MPLS_FIB_KEY_SIZE)
/**
* There are no options for controlling the MPLS flow hash,