### Description Kamailio (744bc8f9e12b698cd6b8bc5ef63c84df7a3aea90) compiled with ASAN. During the start, I got the message ``` 0(52607) INFO: <core> [core/tcp_main.c:4997]: init_tcp(): using epoll_lt as the io watch method (auto detected) 0(52607) WARNING: <core> [core/daemonize.c:348]: daemonize(): pid file contains old pid, replacing pid 0(52607) INFO: cfgutils [cfgutils.c:869]: mod_init(): no hash_file given, disable hash functionality ================================================================= ==52607==ERROR: AddressSanitizer: stack-buffer-overflow on address 0xffffc6e64058 at pc 0x000000d02d10 bp 0xffffc6e63dc0 sp 0xffffc6e63de0 READ of size 4 at 0xffffc6e64058 thread T0 #0 0xd02d0f in fixup_get_param_type core/sr_module.c:1061 #1 0xd13a33 in fixup_var_pve_str_12 core/sr_module.c:1474 #2 0xffffa8ca8203 in redirect_init /usr/src/debug/kamailio-5.6.0-dev2.0.el8.centos.aarch64/src/modules/uac_redirect/uac_redirect.c:278 #3 0xd0021f (/usr/sbin/kamailio+0xd0021f) #4 0xcfefef (/usr/sbin/kamailio+0xcfefef) #5 0xcfefef (/usr/sbin/kamailio+0xcfefef) #6 0xcfefef (/usr/sbin/kamailio+0xcfefef) #7 0xcfefef (/usr/sbin/kamailio+0xcfefef) #8 0xcfefef (/usr/sbin/kamailio+0xcfefef) #9 0xcfefef (/usr/sbin/kamailio+0xcfefef) #10 0xcfefef (/usr/sbin/kamailio+0xcfefef) #11 0xcfefef (/usr/sbin/kamailio+0xcfefef) #12 0xcfefef (/usr/sbin/kamailio+0xcfefef) #13 0xcfefef (/usr/sbin/kamailio+0xcfefef) #14 0xcfefef (/usr/sbin/kamailio+0xcfefef) #15 0xcfefef (/usr/sbin/kamailio+0xcfefef) #16 0xcfefef (/usr/sbin/kamailio+0xcfefef) #17 0xcfefef (/usr/sbin/kamailio+0xcfefef) #18 0xcfefef (/usr/sbin/kamailio+0xcfefef) #19 0xcfefef (/usr/sbin/kamailio+0xcfefef) #20 0xcfefef (/usr/sbin/kamailio+0xcfefef) #21 0xcfefef (/usr/sbin/kamailio+0xcfefef) #22 0xcfefef (/usr/sbin/kamailio+0xcfefef) #23 0xcfefef (/usr/sbin/kamailio+0xcfefef) #24 0xcfefef (/usr/sbin/kamailio+0xcfefef) #25 0xcfefef (/usr/sbin/kamailio+0xcfefef) #26 0xcfefef (/usr/sbin/kamailio+0xcfefef) #27 0xcfefef (/usr/sbin/kamailio+0xcfefef) #28 0xcfefef (/usr/sbin/kamailio+0xcfefef) #29 0xcfefef (/usr/sbin/kamailio+0xcfefef) #30 0xcfefef (/usr/sbin/kamailio+0xcfefef) #31 0xcfefef (/usr/sbin/kamailio+0xcfefef) #32 0xcfefef (/usr/sbin/kamailio+0xcfefef) #33 0xcfefef (/usr/sbin/kamailio+0xcfefef) #34 0xcfefef (/usr/sbin/kamailio+0xcfefef) #35 0xd015ab in init_modules (/usr/sbin/kamailio+0xd015ab) #36 0x49fa6b in main (/usr/sbin/kamailio+0x49fa6b) #37 0xfffface10de3 in __libc_start_main (/lib64/libc.so.6+0x20de3) #38 0x4204eb (/usr/sbin/kamailio+0x4204eb) Address 0xffffc6e64058 is located in stack of thread T0 at offset 88 in frame #0 0xffffa8ca70e7 in redirect_init /usr/src/debug/kamailio-5.6.0-dev2.0.el8.centos.aarch64/src/modules/uac_redirect/uac_redirect.c:265 This frame has 8 object(s): [32, 40) 'filter' [96, 104) 'p' <== Memory access at offset 88 underflows this variable [160, 224) '__kld' [256, 320) '__kld' [352, 416) '__kld' [448, 512) '__kld' [544, 608) '__kld' [640, 704) '__kld' HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext (longjmp and C++ exceptions *are* supported) SUMMARY: AddressSanitizer: stack-buffer-overflow core/sr_module.c:1061 in fixup_get_param_type Shadow bytes around the buggy address: 0x200ff8dcc7b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x200ff8dcc7c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x200ff8dcc7d0: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00 0x200ff8dcc7e0: 00 00 00 00 f3 f3 f3 f3 00 00 00 00 00 00 00 00 0x200ff8dcc7f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x200ff8dcc800: f1 f1 f1 f1 00 f2 f2 f2 f2 f2 f2[f2]00 f2 f2 f2 0x200ff8dcc810: f2 f2 f2 f2 00 00 00 00 00 00 00 00 f2 f2 f2 f2 0x200ff8dcc820: 00 00 00 00 00 00 00 00 f2 f2 f2 f2 00 00 00 00 0x200ff8dcc830: 00 00 00 00 f2 f2 f2 f2 00 00 00 00 00 00 00 00 0x200ff8dcc840: f2 f2 f2 f2 00 00 00 00 00 00 00 00 f2 f2 f2 f2 0x200ff8dcc850: 00 00 00 00 00 00 00 00 f3 f3 f3 f3 00 00 00 00 Shadow 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 ==52607==ABORTING ``` I do not know this is important or not. ASAN reports ``` HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext (longjmp and C++ exceptions *are* supported) ``` -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/2953