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Description
Description
The following code:
<?php$zip =zip_open(__DIR__."/test_procedural.zip");while ($zip =zip_read($zip)) {echozip_entry_name($zip)."\n";}
Resulted in this output:
===================================================================2988798==ERROR: AddressSanitizer: heap-use-after-free on address 0x6020000198b0 at pc 0x000000617aa6 bp 0x7ffcae96fc10 sp 0x7ffcae96f3d0READ of size 2 at 0x6020000198b0 thread T0 #0 0x617aa5 in strlen (/home/phpfuzz/WorkSpace/flowfusion/php-src/sapi/cli/php+0x617aa5) #1 0x3469ed2 in php_zip_entry_get_info /home/phpfuzz/WorkSpace/flowfusion/php-src/ext/zip/php_zip.c:1386:4 #2 0x346941e in zif_zip_entry_name /home/phpfuzz/WorkSpace/flowfusion/php-src/ext/zip/php_zip.c:1425:2 #3 0x448fb1f in ZEND_DO_FCALL_BY_NAME_SPEC_RETVAL_USED_HANDLER /home/phpfuzz/WorkSpace/flowfusion/php-src/Zend/zend_vm_execute.h:1698:3 #4 0x3f7c167 in execute_ex /home/phpfuzz/WorkSpace/flowfusion/php-src/Zend/zend_vm_execute.h:58595:7 #5 0x3f7e3ec in zend_execute /home/phpfuzz/WorkSpace/flowfusion/php-src/Zend/zend_vm_execute.h:64247:2 #6 0x4d15019 in zend_execute_script /home/phpfuzz/WorkSpace/flowfusion/php-src/Zend/zend.c:1934:3 #7 0x35298da in php_execute_script_ex /home/phpfuzz/WorkSpace/flowfusion/php-src/main/main.c:2577:13 #8 0x352aa18 in php_execute_script /home/phpfuzz/WorkSpace/flowfusion/php-src/main/main.c:2617:9 #9 0x4d2932a in do_cli /home/phpfuzz/WorkSpace/flowfusion/php-src/sapi/cli/php_cli.c:938:5 #10 0x4d2380f in main /home/phpfuzz/WorkSpace/flowfusion/php-src/sapi/cli/php_cli.c:1313:18 #11 0x7f300a19fd8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16 #12 0x7f300a19fe3f in __libc_start_main csu/../csu/libc-start.c:392:3 #13 0x605934 in _start (/home/phpfuzz/WorkSpace/flowfusion/php-src/sapi/cli/php+0x605934)0x6020000198b0 is located 0 bytes inside of 4-byte region [0x6020000198b0,0x6020000198b4)freed by thread T0 here: #0 0x680592 in free (/home/phpfuzz/WorkSpace/flowfusion/php-src/sapi/cli/php+0x680592) #1 0x7f300a3c492e (/lib/x86_64-linux-gnu/libzip.so.4+0x592e)previously allocated by thread T0 here: #0 0x6807fd in malloc (/home/phpfuzz/WorkSpace/flowfusion/php-src/sapi/cli/php+0x6807fd) #1 0x7f300a3d11b7 (/lib/x86_64-linux-gnu/libzip.so.4+0x121b7)SUMMARY: AddressSanitizer: heap-use-after-free (/home/phpfuzz/WorkSpace/flowfusion/php-src/sapi/cli/php+0x617aa5) in strlenShadow bytes around the buggy address: 0x0c047fffb2c0: fa fa fd fa fa fa 00 00 fa fa 00 00 fa fa 00 fa 0x0c047fffb2d0: fa fa 00 00 fa fa 00 fa fa fa 00 00 fa fa 00 fa 0x0c047fffb2e0: fa fa 00 00 fa fa 00 fa fa fa fd fd fa fa fd fa 0x0c047fffb2f0: fa fa fd fd fa fa 00 fa fa fa fd fd fa fa fd fa 0x0c047fffb300: fa fa fd fd fa fa 00 fa fa fa 00 06 fa fa fd fd=>0x0c047fffb310: fa fa fd fa fa fa[fd]fa fa fa fd fd fa fa fd fa 0x0c047fffb320: fa fa fd fd fa fa fd fa fa fa fd fa fa fa fd fd 0x0c047fffb330: fa fa fd fa fa fa fd fd fa fa fd fa fa fa fd fa 0x0c047fffb340: fa fa fd fd fa fa fd fa fa fa 00 07 fa fa fd fd 0x0c047fffb350: fa fa fd fd fa fa fd fd fa fa fd fa fa fa fa fa 0x0c047fffb360: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa faShadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb Shadow gap: cc==2988798==ABORTING
Dependency: test_procedural.zip
PHP Version
nightly
Operating System
ubuntu 22.04