stack overflow in array

### Description The following code: ```php <?php $names=[]; for($i=0;$i<1000000;$i++){ $names=[$names]; } $x=1; $r=compact($names); ``` Resulted in this output: ``` AddressSanitizer:DEADLYSIGNAL ================================================================= ==35==ERROR: AddressSanitizer: stack-overflow on address 0x7ffdeab6bff8 (pc 0x5600d40b13c0 bp 0x7ffdeab6c0a0 sp 0x7ffdeab6bfe0 T0) #0 0x5600d40b13c0 in php_compact_var /home/php-src/ext/standard/array.c:2592 #1 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #2 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #3 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #4 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #5 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #6 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #7 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #8 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #9 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #10 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #11 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #12 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #13 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #14 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #15 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #16 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #17 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #18 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #19 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #20 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #21 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #22 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #23 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #24 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #25 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #26 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #27 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #28 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #29 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #30 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #31 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #32 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #33 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #34 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #35 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #36 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #37 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #38 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #39 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #40 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #41 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #42 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #43 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #44 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #45 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #46 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #47 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #48 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #49 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #50 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #51 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #52 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #53 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #54 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #55 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #56 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #57 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #58 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #59 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #60 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #61 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #62 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #63 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #64 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #65 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #66 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #67 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #68 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #69 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #70 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #71 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #72 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #73 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #74 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #75 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #76 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #77 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #78 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #79 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #80 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #81 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #82 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #83 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #84 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #85 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #86 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #87 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #88 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #89 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #90 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #91 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #92 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #93 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #94 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #95 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #96 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #97 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #98 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #99 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #100 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #101 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #102 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #103 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #104 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #105 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #106 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #107 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #108 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #109 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #110 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #111 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #112 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #113 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #114 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #115 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #116 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #117 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #118 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #119 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #120 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #121 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #122 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #123 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #124 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #125 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #126 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #127 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #128 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #129 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #130 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #131 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #132 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #133 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #134 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #135 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #136 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #137 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #138 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #139 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #140 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #141 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #142 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #143 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #144 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #145 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #146 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #147 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #148 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #149 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #150 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #151 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #152 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #153 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #154 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #155 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #156 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #157 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #158 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #159 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #160 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #161 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #162 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #163 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #164 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #165 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #166 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #167 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #168 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #169 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #170 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #171 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #172 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #173 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #174 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #175 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #176 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #177 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #178 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #179 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #180 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #181 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #182 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #183 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #184 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #185 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #186 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #187 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #188 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #189 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #190 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #191 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #192 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #193 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #194 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #195 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #196 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #197 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #198 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #199 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #200 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #201 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #202 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #203 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #204 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #205 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #206 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #207 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #208 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #209 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #210 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #211 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #212 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #213 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #214 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #215 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #216 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #217 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #218 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #219 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #220 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #221 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #222 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #223 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #224 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #225 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #226 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #227 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #228 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #229 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #230 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #231 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #232 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #233 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #234 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #235 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #236 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #237 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #238 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #239 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #240 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #241 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #242 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #243 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #244 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #245 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #246 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #247 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 #248 0x5600d40b143e in php_compact_var /home/php-src/ext/standard/array.c:2593 SUMMARY: AddressSanitizer: stack-overflow /home/php-src/ext/standard/array.c:2592 in php_compact_var ==35==ABORTING ``` But I expected this output instead: ``` USE_ZEND_ALLOC=0 ./php-src/sapi/cli/php -d "opcache.enable=1" -d "opcache.enable_cli=1" -d "opcache.jit=tracing" -d "opcache.jit_hot_loop=1" -d "opcache.jit_hot_func=1" poc.php ``` ### PHP Version ```plain 8.6.0 ``` ### Operating System ubuntu 22.04