Details
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Bug
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Status: Closed (View Workflow)
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Critical
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Resolution: Fixed
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10.3
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None
Description
The semisync ack collector hits fd's out-of-bound value assert through
#12 0x00007f125ea0cce8 in abort () from /lib64/libc.so.6
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No symbol table info available.
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#13 0x00007f125ea4b317 in __libc_message () from /lib64/libc.so.6
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No symbol table info available.
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#14 0x00007f125eae3a77 in __fortify_fail () from /lib64/libc.so.6
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No symbol table info available.
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#15 0x00007f125eae1c30 in __chk_fail () from /lib64/libc.so.6
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No symbol table info available.
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#16 0x00007f125eae39e7 in __fdelt_warn () from /lib64/libc.so.6
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No symbol table info available.
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#17 0x00007f1260f7f400 in Ack_receiver::get_slave_sockets (this=this@entry=0x7f1261f4acc0 <ack_receiver>, fds=<optimized out>, fds@entry=0x7f0c797f97c0, count=count@entry=0x7f0c797f979c)
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at mariadb-10.3.9/sql/semisync_master_ack_receiver.cc:189
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__d = 1616
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fd = 1616
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max_fd = 1616
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slave = 0x7f0bcc2f4e08
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it = {<base_ilist_iterator> = {list = 0x7f1261f4ad40 <ack_receiver+128>, el = 0x7f0bcc2f4e18, current = 0x7f0bcc2f4e08}, <No data fields>}
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#18 0x00007f1260f7f980 in Ack_receiver::run (this=this@entry=0x7f1261f4acc0 <ack_receiver>)
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The reason of the failure must be the same as in https://bugs.mysql.com/bug.php?id=79865
whose fixes should be tried out.
Representation in the error log:
*** buffer overflow detected ***: /usr/sbin/mysqld terminated
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...
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======= Backtrace: =========
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/lib64/libc.so.6(__fortify_fail+0x37)[0x7fa3b998ba77]
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/lib64/libc.so.6(+0x10bc30)[0x7fa3b9989c30]
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/lib64/libc.so.6(+0x10d9e7)[0x7fa3b998b9e7]
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/usr/sbin/mysqld(_ZN12Ack_receiver17get_slave_socketsEP6fd_setPj+0x70)[0x7fa3bbe27400]
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/usr/sbin/mysqld(_ZN12Ack_receiver3runEv+0x540)[0x7fa3bbe27980]
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/usr/sbin/mysqld(ack_receive_handler+0x19)[0x7fa3bbe27a79]
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/lib64/libpthread.so.0(+0x7dc5)[0x7fa3bb31ddc5]
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/lib64/libc.so.6(clone+0x6d)[0x7fa3b99741cd]
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======= Memory map: ========
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...
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