diff --git a/fuzz/common_fuzzer_corpus/x-ascii.ppm b/fuzz/common_fuzzer_corpus/x-ascii.ppm
new file mode 100644
index 00000000..aa81a14b
--- /dev/null
+++ b/fuzz/common_fuzzer_corpus/x-ascii.ppm
@@ -0,0 +1,15 @@
+P2
+#vips2ppm - Fri Aug 23 12:48:07 2019
+
+10 10
+255
+96 101 113 118 124 130 136 141 147 150 
+81 87 98 101 107 112 117 123 130 135 
+73 78 85 90 95 99 103 110 118 124 
+46 51 60 67 73 81 87 94 103 109 
+34 35 40 48 60 69 77 81 85 88 
+28 26 31 36 45 54 59 64 69 72 
+32 31 41 39 39 40 45 52 61 66 
+38 38 47 42 38 36 38 43 49 53 
+37 38 39 39 37 37 37 36 34 32 
+36 36 38 36 35 34 35 32 28 25 
diff --git a/fuzz/common_fuzzer_corpus/x.csv b/fuzz/common_fuzzer_corpus/x.csv
new file mode 100644
index 00000000..640265ec
--- /dev/null
+++ b/fuzz/common_fuzzer_corpus/x.csv
@@ -0,0 +1,10 @@
+96	101	113	118	124	130	136	141	147	150
+81	87	98	101	107	112	117	123	130	135
+73	78	85	90	95	99	103	110	118	124
+46	51	60	67	73	81	87	94	103	109
+34	35	40	48	60	69	77	81	85	88
+28	26	31	36	45	54	59	64	69	72
+32	31	41	39	39	40	45	52	61	66
+38	38	47	42	38	36	38	43	49	53
+37	38	39	39	37	37	37	36	34	32
+36	36	38	36	35	34	35	32	28	25
diff --git a/fuzz/common_fuzzer_corpus/x.mat b/fuzz/common_fuzzer_corpus/x.mat
new file mode 100644
index 00000000..bed7279e
--- /dev/null
+++ b/fuzz/common_fuzzer_corpus/x.mat
@@ -0,0 +1,11 @@
+10 10 
+96 101 113 118 124 130 136 141 147 150 
+81 87 98 101 107 112 117 123 130 135 
+73 78 85 90 95 99 103 110 118 124 
+46 51 60 67 73 81 87 94 103 109 
+34 35 40 48 60 69 77 81 85 88 
+28 26 31 36 45 54 59 64 69 72 
+32 31 41 39 39 40 45 52 61 66 
+38 38 47 42 38 36 38 43 49 53 
+37 38 39 39 37 37 37 36 34 32 
+36 36 38 36 35 34 35 32 28 25 
diff --git a/fuzz/common_fuzzer_corpus/x.ppm b/fuzz/common_fuzzer_corpus/x.ppm
new file mode 100644
index 00000000..cc0b6072
--- /dev/null
+++ b/fuzz/common_fuzzer_corpus/x.ppm
@@ -0,0 +1,6 @@
+P5
+#vips2ppm - Fri Aug 23 12:47:38 2019
+
+10 10
+255
+`eqv|‚ˆ“–QWbekpu{‚‡INUZ_cgnv|.3<CIQW^gm"#(0<EMQUX$-6;@EH )''(-4=B&&/*&$&+15%&''%%%$" $$&$#"# 
\ No newline at end of file
diff --git a/fuzz/common_fuzzer_corpus/x3.ppm b/fuzz/common_fuzzer_corpus/x3.ppm
new file mode 100644
index 00000000..7b33959c
--- /dev/null
+++ b/fuzz/common_fuzzer_corpus/x3.ppm
@@ -0,0 +1,6 @@
+P6
+#vips2ppm - Fri Aug 23 12:47:50 2019
+
+10 10
+255
+g[ilaoxm{{s€yˆ†Œ…—‹œ•€˜”₯\K[`Rai]klaophwtm}yr„wŒ„•‰…–TBRYHX^P_aUcf[kh_plcvrjzr‰€y‹:(6=-:E7DJ>LQDUWL]\SfcZolbzri|.(/)3#.9+8E7FM@QSHYVM`ZQf]Tg' %*$- *6(5=1?C6HG;OL@VOCW,!)!3$+2",0#-1#05(9</AE8LJ=Q1"%/#%7+/3&-/"+- */!04&7:+>>/B.""/##0$&/#'.!(.!*. --.+.)-," ,"!/##-!#,&+'-*+*'(#%
\ No newline at end of file