https://bugzilla.mindrot.org/show_bug.cgi?id=3441
--- Comment #5 from Darren Tucker <[email protected]> --- Th(In reply to Dmitry Belyavskiy from comment #4) > See also https://bugzilla.redhat.com/show_bug.cgi?id=2070137 I split out the rlimit+select check before I read that bug but got the same result: $ ./a.out ==2109378==Can't open /proc/2109377/task for reading. ==2109377==LeakSanitizer has encountered a fatal error. ==2109377==HINT: For debugging, try setting environment variable LSAN_OPTIONS=verbosity=1:log_threads=1 ==2109377==HINT: LeakSanitizer does not work under ptrace (strace, gdb, etc) You can work around that by skipping the rlimit+select check if --without-sandbox is set, which gets to the dlsym problem: usr/bin/ld: ./libssh.a(ssh-pkcs11.o): undefined reference to symbol 'dlsym@@GLIBC_2.2.5' //usr/lib64/libdl.so.2: error adding symbols: DSO missing from command line collect2: error: ld returned 1 exit status which you can work around by disabling the things that need dlsym ("--disable-security-key --disable-pkcs11") which brings us to the final problem: the leak checker in the preauth privsep process can't open /proc because that process is in a chroot and fails when the process exits: $ sudo `pwd`/sshd -ddde -p 2022 [...] debug3: mm_send_keystate: Finished sending state [preauth] ==2194517==Can't open /proc/2194515/task for reading. ==2194515==LeakSanitizer has encountered a fatal error. ==2194515==HINT: For debugging, try setting environment variable LSAN_OPTIONS=verbosity=1:log_threads=1 ==2194515==HINT: LeakSanitizer does not work under ptrace (strace, gdb, etc) This one is a dealbreaker as long as the leak checker needs access to /proc since privsep is required. You could try hacking the code to disable privsep for testing purposes but be aware that's now an untested and unsupported configuration. -- You are receiving this mail because: You are watching someone on the CC list of the bug. You are watching the assignee of the bug. _______________________________________________ openssh-bugs mailing list [email protected] https://lists.mindrot.org/mailman/listinfo/openssh-bugs
