https://bz.apache.org/bugzilla/show_bug.cgi?id=66639
Bug ID: 66639 Summary: SEGV on strlen-avx2.S:65 Product: Apache httpd-2 Version: 2.4.54 Hardware: PC OS: Linux Status: NEW Severity: normal Priority: P2 Component: mod_auth_dbm Assignee: bugs@httpd.apache.org Reporter: sihan2...@iscas.ac.cn Target Milestone: --- Hello, Httpd developers! We recently ran some fuzz testing on htdbm 2.4.54 and encountered a SEGV bug. ## Command To Reproduce the bug: ./htdbm -llniiidvt ## Environment - OS: Ubuntu 20.04 - gcc 9.4.0 - htdbm 2.4.54 ## ASAN Report ================================================================= ==958289==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f974616d6e5 bp 0x7ffd235521b0 sp 0x7ffd23551968 T0) ==958289==The signal is caused by a READ memory access. ==958289==Hint: address points to the zero page. #0 0x7f974616d6e5 /build/glibc-SzIz7B/glibc-2.31/string/../sysdeps/x86_64/multiarch/strlen-avx2.S:65 #1 0x4314f8 in strlen (/home/root/sp/Dataset/Httpd/httpd_aflpp/install/bin/htdbm+0x4314f8) #2 0x4cea93 in htdbm_verify /home/root/sp/Dataset/Httpd/httpd_aflpp/support/htdbm.c:197:17 #3 0x4cd385 in main /home/root/sp/Dataset/Httpd/httpd_aflpp/support/htdbm.c:422:23 #4 0x7f9746009082 in __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16 #5 0x41d58d in _start (/home/root/sp/Dataset/Httpd/httpd_aflpp/install/bin/htdbm+0x41d58d) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV /build/glibc-SzIz7B/glibc-2.31/string/../sysdeps/x86_64/multiarch/strlen-avx2.S:65 ==958289==ABORTING Many Thanks. -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: bugs-unsubscr...@httpd.apache.org For additional commands, e-mail: bugs-h...@httpd.apache.org