- dovecot - dovecot.org

Reproducible SIGSEGV when Dovecot 2.3 compiled against glibc-2.28
by Reuben Farrelly 08 Aug '18

08 Aug '18

Hi, Dovecot 2.3 (release and current -git) versions compile, but fail to run when compiled against glibc-2.28. This is what is logged on startup: Aug 8 08:24:39 thunderstorm.reub.net dovecot[569]: master: Dovecot v2.3.2.1 (0719df592) starting up for imap, lmtp, sieve, submission, sieve Aug 8 08:24:39 thunderstorm.reub.net dovecot[569]: master: Error: service(auth): command startup failed, throttling for 2 secs Aug 8 08:24:39 thunderstorm.reub.net dovecot[574]: auth: Fatal: master: service(auth): child 582 killed with signal 11 (core dumped) Aug 8 08:24:39 thunderstorm.reub.net dovecot[574]: replicator: Error: userdb lookup: Disconnected unexpectedly Aug 8 08:24:52 thunderstorm.reub.net dovecot[569]: master: Warning: Killed with signal 15 (by pid=670 uid=0 code=kill) The issue is specifically with the 'auth' binary. Other components all appear to be unaffected. The 'auth' binary dies with a Segmentation Fault when run as a standalone executable too. As the auth binary is critical to many different parts of Dovecot, a failure of this is catastrophic. This is a 100% reproducible problem. The platform is Gentoo x86_64. thunderstorm /usr/libexec/dovecot # ./auth-old Segmentation fault thunderstorm /usr/libexec/dovecot # [I've renamed the original binary to auth-old, and put in it's place a working 'auth' binary built against glibc-2.27 in order to have a functioning system] Problem matrix looks like this: Build on a glibc-2.27 system, run on a glibc-2.27 - OK Build on a glibc-2.27 system, run on a glibc-2.28 - OK Build on a glibc-2.28 system, run on a glibc-2.27 - SEGFAULT Build on a glibc-2.28 system, run on a glibc-2.28 - SEGFAULT (All other components including gcc otherwise identical) ./configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --disable-dependency-tracking --disable-silent-rules --docdir=/usr/share/doc/dovecot-9999_p20180807 --htmldir=/usr/share/doc/dovecot-9999_p20180807/html --libdir=/usr/lib64 --with-rundir=/run/dovecot --with-statedir=/var/lib/dovecot --with-moduledir=/usr/lib64/dovecot --without-stemmer --disable-rpath --without-libbsd --with-icu --with-ssl --with-systemdsystemunitdir=/lib/systemd/system --with-sodium --with-bzlib --without-libcap --without-gssapi --without-lua --without-ldap --with-lucene --with-lz4 --with-lzma --without-mysql --with-pam --without-pgsql --without-sqlite --without-solr --with-libwrap --without-textcat --without-vpopmail --with-zlib --disable-static Strace: thunderstorm /usr/libexec/dovecot # strace ./auth-old execve("./auth-old", ["./auth-old"], 0x7ffd17c804c0 /* 27 vars */) = 0 brk(NULL) = 0x557e9dc28000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/tls/x86_64/x86_64/libstats_auth.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/old-stats/tls/x86_64/x86_64", 0x7ffcc7973020) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/tls/x86_64/libstats_auth.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/old-stats/tls/x86_64", 0x7ffcc7973020) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/tls/x86_64/libstats_auth.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/old-stats/tls/x86_64", 0x7ffcc7973020) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/tls/libstats_auth.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/old-stats/tls", 0x7ffcc7973020) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/x86_64/x86_64/libstats_auth.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/old-stats/x86_64/x86_64", 0x7ffcc7973020) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/x86_64/libstats_auth.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/old-stats/x86_64", 0x7ffcc7973020) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/x86_64/libstats_auth.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/old-stats/x86_64", 0x7ffcc7973020) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/libstats_auth.so", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\t\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=18848, ...}) = 0 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3eef676000 mmap(NULL, 2105632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f3eef24f000 mprotect(0x7f3eef251000, 2093056, PROT_NONE) = 0 mmap(0x7f3eef450000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7f3eef450000 close(3) = 0 openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/libdovecot.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/tls/x86_64/x86_64/libdovecot.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/tls/x86_64/x86_64", 0x7ffcc7973000) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/tls/x86_64/libdovecot.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/tls/x86_64", 0x7ffcc7973000) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/tls/x86_64/libdovecot.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/tls/x86_64", 0x7ffcc7973000) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/tls/libdovecot.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/tls", 0x7ffcc7973000) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/x86_64/x86_64/libdovecot.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/x86_64/x86_64", 0x7ffcc7973000) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/x86_64/libdovecot.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/x86_64", 0x7ffcc7973000) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/x86_64/libdovecot.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) stat("/usr/lib64/dovecot/x86_64", 0x7ffcc7973000) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/libdovecot.so.0", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p\277\3\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=4783816, ...}) = 0 mmap(NULL, 4186392, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f3eeee50000 mprotect(0x7f3eef043000, 2093056, PROT_NONE) = 0 mmap(0x7f3eef242000, 40960, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1f2000) = 0x7f3eef242000 mmap(0x7f3eef24c000, 8472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f3eef24c000 close(3) = 0 openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/libcrypt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/libcrypt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=54433, ...}) = 0 mmap(NULL, 54433, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f3eef668000 close(3) = 0 openat(AT_FDCWD, "/lib64/libcrypt.so.1", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 \r\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=39064, ...}) = 0 mmap(NULL, 2322976, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f3eeec18000 mprotect(0x7f3eeec20000, 2097152, PROT_NONE) = 0 mmap(0x7f3eeee20000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7f3eeee20000 mmap(0x7f3eeee22000, 184864, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f3eeee22000 close(3) = 0 openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/libpam.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/libpam.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib64/libpam.so.0", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200&\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=55840, ...}) = 0 mmap(NULL, 2151000, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f3eeea0a000 mprotect(0x7f3eeea17000, 2093056, PROT_NONE) = 0 mmap(0x7f3eeec16000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xc000) = 0x7f3eeec16000 close(3) = 0 openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/libsodium.so.23", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/libsodium.so.23", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/libsodium.so.23", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\305\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=318056, ...}) = 0 mmap(NULL, 2413576, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f3eee7bc000 mprotect(0x7f3eee809000, 2093056, PROT_NONE) = 0 mmap(0x7f3eeea08000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4c000) = 0x7f3eeea08000 close(3) = 0 openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib64/dovecot/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\3407\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1869376, ...}) = 0 mmap(NULL, 3975016, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f3eee3f1000 mprotect(0x7f3eee5b3000, 2093056, PROT_NONE) = 0 mmap(0x7f3eee7b2000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c1000) = 0x7f3eee7b2000 mmap(0x7f3eee7b8000, 14184, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f3eee7b8000 close(3) = 0 openat(AT_FDCWD, "/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\16\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=14424, ...}) = 0 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3eef666000 mmap(NULL, 2109712, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f3eee1ed000 mprotect(0x7f3eee1f0000, 2093056, PROT_NONE) = 0 mmap(0x7f3eee3ef000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f3eee3ef000 close(3) = 0 openat(AT_FDCWD, "/lib64/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0j\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=118024, ...}) = 0 mmap(NULL, 2229408, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f3eedfcc000 mprotect(0x7f3eedfe8000, 2093056, PROT_NONE) = 0 mmap(0x7f3eee1e7000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b000) = 0x7f3eee1e7000 mmap(0x7f3eee1e9000, 13472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f3eee1e9000 close(3) = 0 mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3eef663000 arch_prctl(ARCH_SET_FS, 0x7f3eef663b80) = 0 mprotect(0x7f3eee7b2000, 16384, PROT_READ) = 0 mprotect(0x7f3eee1e7000, 4096, PROT_READ) = 0 mprotect(0x7f3eee3ef000, 4096, PROT_READ) = 0 mprotect(0x7f3eeea08000, 4096, PROT_READ) = 0 mprotect(0x7f3eeec16000, 4096, PROT_READ) = 0 mprotect(0x7f3eeee20000, 4096, PROT_READ) = 0 mprotect(0x7f3eef242000, 28672, PROT_READ) = 0 mprotect(0x7f3eef450000, 4096, PROT_READ) = 0 mprotect(0x557e9c5e7000, 12288, PROT_READ) = 0 mprotect(0x7f3eef678000, 4096, PROT_READ) = 0 munmap(0x7f3eef668000, 54433) = 0 set_tid_address(0x7f3eef663e50) = 19762 set_robust_list(0x7f3eef663e60, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f3eedfd2380, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f3eedfe0400}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f3eedfd2430, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3eedfe0400}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 getrandom("\xfb\x47\x75\x83", 4, 0) = 4 brk(NULL) = 0x557e9dc28000 brk(0x557e9dc49000) = 0x557e9dc49000 uname({sysname="Linux", nodename="thunderstorm", ...}) = 0 getpid() = 19762 openat(AT_FDCWD, "/dev/null", O_WRONLY) = 3 fcntl(3, F_GETFD) = 0 fcntl(3, F_SETFD, FD_CLOEXEC) = 0 rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f3eee4297c0}, NULL, 8) = 0 rt_sigaction(SIGALRM, {sa_handler=0x7f3eeef9899b, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f3eee4297c0}, NULL, 8) = 0 openat(AT_FDCWD, "/proc/sys/crypto/fips_enabled", O_RDONLY) = -1 ENOENT (No such file or directory) --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0xffffffffeee4f200} --- +++ killed by SIGSEGV +++ Segmentation fault thunderstorm /usr/libexec/dovecot # gdb: thunderstorm /var/core # gdb auth core.auth.18428 GNU gdb (Gentoo 8.1.1 p1) 8.1.1 Copyright (C) 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-pc-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <https://bugs.gentoo.org/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from auth...done. warning: exec file is newer than core file. [New LWP 18428] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `dovecot/auth'. Program terminated with signal SIGSEGV, Segmentation fault. #0 __strcmp_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S:31 31 ../sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S: No such file or directory. (gdb) bt full #0 __strcmp_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S:31 No locals. #1 0x000055bbe3362dcf in password_scheme_register_crypt () at password-scheme-crypt.c:191 i = 0 crypted = 0xfffffffffdbcf200 <error: Cannot access memory at address 0xfffffffffdbcf200> __func__ = <optimized out> #2 0x000055bbe33627cb in password_schemes_init () at password-scheme.c:874 i = 27 #3 0x000055bbe332a82a in main_preinit () at main.c:185 mod_set = { abi_version = 0xfe2096c0 <error: Cannot access memory at address 0xfe2096c0>, binary_name = 0x599ce8cff6a85000 <error: Cannot access memory at address 0x599ce8cff6a85000>, setting_name = 0x7f1efdc1b011 <__x86_return_thunk+5> "\363\220\017\256\350\353\371H\215d$\b\303\350\a", filter_callback = 0x7f1efdc51029 <master_getopt+149>, filter_context = 0x7f1efdc1b011 <__x86_return_thunk+5>, require_init_funcs = false, debug = false, ignore_dlopen_errors = false, ignore_missing = false} services = 0x55bbe3819fa0 #4 0x000055bbe332aef5 in main (argc=1, argv=0x55bbe3819ae0) at main.c:392 c = -1 (gdb) Release notes for glibc are here: https://www.sourceware.org/ml/libc-alpha/2018-08/msg00003.htm There are some notes about changes to crypt functions which could be relevant given the gdb has references to crypt password schemes. I have libgcrypt-1.8.3 installed but I _haven't_ specifically disabled crypt in glibc (see release notes). Thanks, Reuben

3 6

Error: connect(ipc-proxy) failed: Permission denied
by MAREN ZUBIZARRETA 08 Aug '18

08 Aug '18

Hello: We have got 2 directors and three backend mailbox servers. I get the following error " Error: connect(ipc-proxy) failed: Permission denied". I have read the article https://www.dovecot.org/list/dovecot/2012-August/137349.html and we have done as signaled in the two director servers with no success, So, we have tried now to set it like this: service ipc { unix_listener ipc { user = dovecot # This is already the default in v2.3.1+ group = mode = 0777 } } that cause the socket to have full permissions: srwxrwxrwx 1 dovecot root 0 ago 8 10:00 /var/run/dovecot/ipc but even so, I still get the same behaviour. And when you try "doveadm director kick user" , nothing happens Can anyone give me any hint. Thanks a lot in advance Maren Zubizarreta Sistemen Analista / Analista de Sistemas maren.zubizarreta(a)ehu.es<mailto:maren.zubizarreta@ehu.es> 94 601 8389 IKT GERENTEORDETZA/VICEGERENCIA TIC UPV/EHU Barrio Sarriena,s/n | 48940 LEIOA T.: +34 946012000 | F.: +34 946012200 www.ehu.es<http://www.ehu.es/> [http://www.unibertsitate-hedakuntza.ehu.es/p268-content/es/contenidos/infor…] ERNE! Baliteke mezu honen zatiren bat edo mezu osoa legez babestuta egotea. Mezuak badu bere hartzailea. Okerreko helbidera heldu bada (helbidea gaizki idatzi, transmisioak huts egin) eman abisu igorleari, korreo honi erantzunda. Kontuz! Mezua ez bada zuretzat, ez erabili, ez zabaldu beste inori, ez kopiatu eta ez baliatu. ¡ATENCIÓN! Este mensaje contiene información privilegiada o confidencial a la que sólo tiene derecho a acceder el destinatario. Si usted lo recibe por error le agradeceríamos que no hiciera uso de la información y que se pusiese en contacto con el remitente. [http://www.unibertsitate-hedakuntza.ehu.es/p077-9030/es/contenidos/informac…] E-mail hau inprimatu baino lehen egiaztatu inprimatzeko beharra. Antes de imprimir este e-mail piense bien si es necesario hacerlo.

1 0

AW: 2.3.2.1 - relay to lmtps from other lan host
by Tobi 06 Aug '18

06 Aug '18

You have lmtp as unix socket configured but want to access from remote via tcp socket? I think you need inet_listener instead of unix_ listener ----- Originale Nachricht ----- Von: "ѽ҉ᶬḳ℠" <vtol(a)gmx.net> Gesendet: 06.08.18 - 20:14 An: dovecot <dovecot(a)dovecot.org> Betreff: 2.3.2.1 - relay to lmtps from other lan host > Hi, > > looked into the [ dovecot wiki ] but a search for [ lmtps ] came up > empty and thus hoping to get some assistance here. > > I am trying to relay with [ msmtp ] via [ lmtps ] from a lan host other > than [ dovecot ] is running on. > > [ dovecot config ] > >> service lmtp { >> unix_listener lmtp { >> #mode = 0666 >> } > > [ ss -wxl | grep lmtp ] >> u_strLISTEN 0 100 /var/run/dovecot/lmtp 68262 * 0 > > So far so good. Now from the other lan host -> [ msmtp --serverinfo > --tls --tls-certcheck=off --host=172.24.109.6 --protocol=lmtp --port=262 > ] produces: > >> msmtp: cannot connect to 172.24.109.6, port 262: Connection refused > >

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2.3.2.1 - relay to lmtps from other lan host
by ѽ҉ᶬḳ℠ 06 Aug '18

06 Aug '18

Hi, looked into the [ dovecot wiki ] but a search for [ lmtps ] came up empty and thus hoping to get some assistance here. I am trying to relay with [ msmtp ] via [ lmtps ] from a lan host other than [ dovecot ] is running on. [ dovecot config ] > service lmtp { > unix_listener lmtp { > #mode = 0666 > } [ ss -wxl | grep lmtp ] > u_strLISTEN 0 100 /var/run/dovecot/lmtp 68262 * 0 So far so good. Now from the other lan host -> [ msmtp --serverinfo --tls --tls-certcheck=off --host=172.24.109.6 --protocol=lmtp --port=262 ] produces: > msmtp: cannot connect to 172.24.109.6, port 262: Connection refused

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dsync not replicating ".dovecot.sieve -> .sieve/managesieve.sieve"
by Tony 06 Aug '18

06 Aug '18

Hi, Currently using dovecot 2.3.2.1 and pigeonhole 0.5.2 on two identical hosts. I recently noticed ".dovecot.sieve" and ".sieve/managesieve.sieve" are not replicating from one host to the other in either direction. Mail is having no trouble replicating on both hosts with dsync, it is only sieve files that are not replicating for unclear reasons. # doveconf -n host 1: https://ptpb.pw/njs3 host 2: https://ptpb.pw/KsfK If I enable sieve debug logs I don't see anything that would cause alarm. The error logs are also not reporting any trouble. I have tested creating filters in Roundcube which is hosted from host1. This creates the sieve files as expected, but the same sieve files do not replicate to host2. When using Sieve with Thunderbird if the sieve files are created on host1 or host2, these are not replicating with dsync. So it does not seem to matter if the sieve files are created on either host and with any mail client, they just do not replicate at all. # host1 stat /home/vmail/example.email/user\(a)example.email/.dovecot.sieve File: /home/vmail/example.email/user(a)example.email/.dovecot.sieve -> .sieve/managesieve.sieve Size: 24 Blocks: 0 IO Block: 4096 symbolic link Device: 800h/2048d Inode: 596605 Links: 1 Access: (0777/lrwxrwxrwx) Uid: ( 5000/ vmail) Gid: ( 5000/ vmail) Access: 2018-08-05 15:24:41.351827516 -0700 Modify: 2018-08-05 15:24:41.351827516 -0700 Change: 2018-08-05 15:24:41.351827516 -0700 Birth: - stat /home/vmail/example.email/user\(a)example.email/.sieve/managesieve.sieve File: /home/vmail/example.email/user(a)example.email/.sieve/managesieve.sieve Size: 65 Blocks: 8 IO Block: 4096 regular file Device: 800h/2048d Inode: 1657978 Links: 1 Access: (0600/-rw-------) Uid: ( 5000/ vmail) Gid: ( 5000/ vmail) Access: 2018-08-05 15:27:30.034984088 -0700 Modify: 2018-08-05 15:27:30.034984088 -0700 Change: 2018-08-05 15:27:30.034984088 -0700 Birth: - # host2 stat /home/vmail/example.email/user\(a)example.email/.dovecot.sieve File: /home/vmail/example.email/user(a)example.email/.dovecot.sieve -> .sieve/managesieve.sieve Size: 24 Blocks: 0 IO Block: 4096 symbolic link Device: fe03h/65027d Inode: 787482 Links: 1 Access: (0777/lrwxrwxrwx) Uid: ( 5000/ vmail) Gid: ( 5000/ vmail) Access: 2018-08-05 16:10:54.832151815 -0700 Modify: 2018-08-05 16:10:54.815484905 -0700 Change: 2018-08-05 16:10:54.815484905 -0700 Birth: - stat /home/vmail/example.email/user\(a)example.email/.sieve/managesieve.sieve File: /home/vmail/example.email/user(a)example.email/.sieve/managesieve.sieve Size: 18 Blocks: 8 IO Block: 4096 regular file Device: fe03h/65027d Inode: 786938 Links: 1 Access: (0600/-rw-------) Uid: ( 5000/ vmail) Gid: ( 5000/ vmail) Access: 2018-08-05 16:10:54.815484905 -0700 Modify: 2018-08-05 16:10:49.818745528 -0700 Change: 2018-08-05 16:10:49.822078910 -0700 Birth: - Here is the Maildir tree view. tree -a /home/vmail/example.email/user\(a)example.email/ /home/vmail/example.email/user(a)example.email/ ├── .dovecot.sieve -> .sieve/managesieve.sieve ├── Maildir │ ├── .Archive │ │ ├── cur │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── cur │ │ ├── 1531611877.M860311P418538.mail,S=5999,W=6167:2,RS │ │ ├── 1531624146.M201381P535494.mail,S=2133,W=2184:2,S │ │ ├── 1533194577.M483202P864896.mail,S=6117,W=6393:2,S │ │ └── 1533195582.M123163P877084.mail,S=1739,W=1786:2,S │ ├── dovecot.index │ ├── dovecot.index.cache │ ├── dovecot.index.log │ ├── dovecot-keywords │ ├── dovecot.list.index │ ├── dovecot.list.index.log │ ├── dovecot.mailbox.log │ ├── dovecot-uidlist │ ├── dovecot-uidvalidity │ ├── dovecot-uidvalidity.5b4a79b5 │ ├── .Drafts │ │ ├── cur │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── maildirsize │ ├── new │ ├── .Sent │ │ ├── cur │ │ │ ├── 1531611855.M403833P418688.mail,S=3510,W=3623:2,S │ │ │ └── 1531624037.M238133P535494.mail,S=436,W=451:2,S │ │ ├── dovecot.index.cache │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── .Sent Messages │ │ ├── cur │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── .Spam │ │ ├── cur │ │ ├── dovecot.index.cache │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── subscriptions │ ├── tmp │ └── .Trash │ ├── cur │ ├── dovecot.index.cache │ ├── dovecot.index.log │ ├── dovecot-uidlist │ ├── maildirfolder │ ├── new │ └── tmp └── .sieve ├── managesieve.sieve └── tmp 30 directories, 41 files I know at one point sieve files must have been replicating with dsync, it's just not clear to me at which version of dovecot and pigeonhole this began with the exception of mail files which are replicating. Cheers, Tony

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Re: replication fails and corrupts index with zlib enabled
by fauno 05 Aug '18

05 Aug '18

El 04/08/18 a las 13:13, Aki Tuomi escribió: > There has definetly been fixes in this area since 2.2.13 and most likely your issue is fixed. Thanks! I built 2.2.36, I'll test it and come back with results :)

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Assertion failure with IMAP NOTIFY
by Florian Pritz 05 Aug '18

05 Aug '18

Hi, For a few weeks I've been running a custom notification script[1] that uses IMAP NOTIFY. The script uses a single connection, sets up a NOTIFY watch on a couple of mailboxes + automatic FETCH for the selected mailbox. If a status update arrives for a different mailbox, it selects that box and fetches the mail. Today I got the following error in the log: > Aug 5 14:56:12 karif dovecot[1881]: imap(xxxx)<22699><TBjUXqtyZI5R2c0k>: Panic: file mail.c: line 242 (mail_get_header_stream): assertion failed: (headers->box == mail->box) > Aug 5 14:56:12 karif dovecot[1881]: imap(xxxx)<22699><TBjUXqtyZI5R2c0k>: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xcfbff) [0x7fda11806bff] -> /usr/lib/dovecot/libdovecot.so.0(+0xcfcba) [0x7fda11806cba] -> /usr/lib/dovecot/libdovecot.so.0(+0x414bb) [0x7fda117784bb] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x3566e) [0x7fda11aec66e] -> /usr/lib/dovecot/libdovecot-storage.so.0(imap_msgpart_open+0x43b) [0x7fda11bb3a1b] -> dovecot/imap(+0x211ed) [0x55e00d2a21ed] -> dovecot/imap(+0x1f69c) [0x55e00d2a069c] -> dovecot/imap(imap_fetch_more_no_lock_update+0xf) [0x55e00d2a17ff] -> dovecot/imap(+0x23891) [0x55e00d2a4891] -> dovecot/imap(imap_client_notify_newmails+0xfa) [0x55e00d2a4a6a] -> dovecot/imap(imap_sync_more+0x755) [0x55e00d2a9f75] -> dovecot/imap(+0x29006) [0x55e00d2aa006] -> dovecot/imap(cmd_sync_delayed+0x27b) [0x55e00d2aa50b] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handle_timeouts+0x10d) [0x7fda1181c82d] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xd2) [0x7fda1181df52] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x4d) [0x7fda1181caad] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x41) [0x7fda1181cc11] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x14) [0x7fda117a0074] -> dovecot/imap(main+0x342) [0x55e00d28fb82] -> /usr/lib/libc.so.6(__libc_start_main+0xeb) [0x7fda1139e06b] -> dovecot/imap(_start+0x2a) [0x55e00d28fd1a] > Aug 5 14:56:12 karif dovecot[1881]: imap(xxxx)<22699><TBjUXqtyZI5R2c0k>: Fatal: master: service(imap): child 22699 killed with signal 6 (core not dumped - https://dovecot.org/bugreport.html#coredumps - set /proc/sys/fs/suid_dumpable to 2) I'm not sure what happened exactly, but I can tell you that a new mail, that went to the selected mailbox (INBOX), was arriving at the time of the crash. The script logs the IMAP traffic (sadly without timestamps so far). Here's a slightly censored (3 dots in a few places) and stripped log in the hope that it helps. Lines prefixed with >> are sent to the server, those with << are received from the server. > [login stuff] > server-speed >> CMD-2 notify set (selected (MessageExpunge MessageNew (uid body.peek[header.fields (from to subject)]))) (mailboxes (INBOX INBOX.Postmaster ... ... ... ...) (MessageNew MessageExpunge MailboxName)) > server-speed << CMD-2 OK NOTIFY completed (0.002 + 0.000 + 0.001 secs). > [various untagged fetches/selects + fetch/noops] > [script was in a different mailbox, status update for INBOX arrives thus script select INBOX] > server-speed >> CMD-51 select INBOX > server-speed << * OK [CLOSED] Previous mailbox closed. > server-speed << * FLAGS (\Answered \Flagged \Deleted \Seen \Draft $MDNSent Junk redirected $label2 $label4 $label5 NonJunk $Forwarded $label3 $label1 done Old) > server-speed << * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft $MDNSent Junk redirected $label2 $label4 $label5 NonJunk $Forwarded $label3 $label1 done Old \*)] Flags permitted. > server-speed << * 20 EXISTS > server-speed << * 1 RECENT > server-speed << * OK [UNSEEN 14] First unseen. > server-speed << * OK [UIDVALIDITY 1336752926] UIDs valid > server-speed << * OK [UIDNEXT 41885] Predicted next UID > server-speed << * OK [HIGHESTMODSEQ 138681] Highest > server-speed << CMD-51 OK [READ-WRITE] Select completed (0.001 + 0.000 secs). > server-speed >> CMD-52 uid fetch 41884 (body.peek[header.fields (from to subject)]) > server-speed << * 20 FETCH (UID 41884 BODY[HEADER.FIELDS (FROM TO SUBJECT)] {164} > server-speed << From: ... > server-speed << To: ... > server-speed << Subject: ... > server-speed << > server-speed << ) > server-speed << CMD-52 OK Fetch completed (0.001 + 0.000 secs). > Got data for notification: [...] > Sending notification with data: {...} > [the next few lines happen over a span of roughly 9 minutes] > server-speed << * 20 EXPUNGE > server-speed << * 0 RECENT > server-speed << * 8 EXPUNGE > server-speed << * 11 EXPUNGE > server-speed << * 18 EXISTS > server-speed << * 1 RECENT > server-speed << * 18 FETCH (UID 41885 > [this is apparnently when the server crashed] I'm afraid I can't reproduce the issue and I don't have the time to try right now, so I can't provide much more information than what is in here. Still, if you have questions, feel free to ask me. Just know that I won't be getting you a better backtrace/coredump any time soon. [1] https://git.server-speed.net/users/flo/App-ImapNotify/tree/ Florian

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limit sharing ability to certain users
by simeon.ott＠onnet.ch 05 Aug '18

05 Aug '18

Hello Is it possible to limit the ability of sharing it’s own mailboxes to only a few users? We have a few sensitive mailboxes of users where the ability to share via IMAP SETACL should be prevented. I tried the following so far… doveadm acl remove -u test(a)onnet.ch <mailto:test@onnet.ch> INBOX user=test(a)onnet.ch <mailto:user=test@onnet.ch> admin but when doing this the admin rights are still there doveadm acl rights -u test(a)onnet.ch <mailto:test@onnet.ch> INBOX vmail@buserver:~$ doveadm acl rights -u test(a)onnet.ch <mailto:test@onnet.ch> INBOX Rights lookup read write write-seen write-deleted insert post expunge create delete admin Thanks in advance for your help Simeon

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replication fails and corrupts index with zlib enabled
by fauno 04 Aug '18

04 Aug '18

Hi, I have two Debian Jessie servers with Dovecot 2.2.13 TCP replication on that have worked fine for years, but now one of them is running low on disk space, so I wanted to try enabling zlib. I crafted a script following the description given in https://wiki.dovecot.org/Plugins/Zlib and xz'ed some inboxes on the stand-by server, the one with low disk space. So every email in those inboxes is xz'ed but the file name hasn't changed and contains the original size. This server is on stand-by so most of the email is replicated unidirectionally to it. But administrative emails like cronjobs and monitoring are delivered locally, so it replicates those to the hot server. The issue appeared when this stand-by server receives such an email and tries to replicate them to the other server. I'm attaching the full snippet of the log from the hot server, because it throws a longer backtrace. The short version is like this: dovecot[8438]: imap(redacted(a)address.org): Error: Cached message size larger than expected (478 > 289) dovecot[8438]: imap(redacted(a)address.org): Error: Maildir filename has wrong S value, renamed the file from /srv/email/address.org/redacted/Maildir/cur/1533393328.M502775P20341.standby_server,S=478:2, to /srv/email/address.org/redacted/Maildir/cur/1533393328.M502775P20341.standby_server,S=289:2, dovecot[8438]: imap(redacted(a)address.org): Error: Corrupted index cache file /srv/email/address.org/redacted/Maildir/dovecot.index.cache: Broken physical size for mail UID 45123 After this there's an error and the replication fails. The file is there, it's gzipped and can be zcat'ed but it appears as a blank email on clients. I've recovered a backup but the issue persists. I also changed from xz to gz because the Debian package docs only mention gz and bzip2, but the issue is the same. From what I understand and tested, the stand-by server is receiving the email and compressing it but maintaining the original size on the file name. So that's ok, but when the hot server receives the copy, it believes the size is wrong and changes it to the compressed size. Then for some reason the index gets corrupted. I'm attaching the doveconf for both servers. They're mostly the same, and the only changes introduced were the zlib plugin and its options. Also the script(s) that I used to compress the inboxes. Am I correct? Is it an issue of replicator not understanding the emails are compressed? I couldn't find anything related to zlib with replication. Maybe it's something fixed in newer versions and I should go that rabbit hole? Thanks! :)

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Proxy lmtp to smtp server
by grupo correo 03 Aug '18

03 Aug '18

Hi, I need to use lmtp server proxy, to proxy a remote smtp server, the documentation says "It's possible to use Dovecot LMTP server as a proxy to remote LMTP or SMTP servers", but i do not find how to configure. Can anybody gel me to understand? Best regards

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