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crash in Curl_getaddrinfo_ex using libcurl 8.11.1
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From: Vadim Grinshpun via curl-library <curl-library_at_lists.haxx.se>
Date: Fri, 21 Mar 2025 20:38:03 -0400
Hi,
A program that has been happily using libcurl for years
started crashing when we upgraded libcurl from 8.10.1 to 8.11.1.
I was hoping the good folks here might be able
to point me in the right direction; the crash is within a libcurl
getaddrinfo call.
A sample gdb stack trace is at the end of the email.
- the OS is Ubuntu 22.04.5 LTS.
- there were no code changes in the program, just dependency updates
- the program is multi-threaded
Based on the fact that 'getaddrinfo' is mentioned in the stack trace, I
wonder if this is somehow related
to a PR that was merged into 8.11.0: https://github.com/curl/curl/pull/15475
Thanks for any help! And let me know if any other information would be
useful.
-Vadim
--snip--
Program terminated with signal SIGABRT, Aborted.
#0 0x00007fbd93e96a7c in pthread_kill () from
/lib/x86_64-linux-gnu/libc.so.6
[Current thread is 1 (Thread 0x7fbd849fa640 (LWP 1673034))]
(gdb) where
[custom signal handler bits removed for brevity]
#5 0x00007fbd93e96a7c in pthread_kill () from
/lib/x86_64-linux-gnu/libc.so.6
#6 0x00007fbd93e42476 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#7 0x00007fbd93e287f3 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#8 0x00007fbd93e8945c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#9 0x00007fbd93e89770 in __libc_fatal () from
/lib/x86_64-linux-gnu/libc.so.6
#10 0x00007fbd93f446af in __netlink_assert_response () from
/lib/x86_64-linux-gnu/libc.so.6
#11 0x00007fbd93f43e1e in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x00007fbd93f0bd71 in getaddrinfo () from
/lib/x86_64-linux-gnu/libc.so.6
#13 0x0000556ae604a3d8 in Curl_getaddrinfo_ex (nodename=<optimized out>,
servname=servname_at_entry=0x7fbd849f5cfc "443",
hints=hints_at_entry=0x7fbd91248b50,
result=result_at_entry=0x7fbd91248b48) at curl_addrinfo.c:121
#14 0x0000556ae603b73d in getaddrinfo_thread
(arg=arg_at_entry=0x7fbd91248b18) at asyn-thread.c:311
#15 0x0000556ae604aaff in curl_thread_create_thunk (arg=<optimized out>)
at curl_threads.c:59
#16 0x00007fbd93e94b43 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#17 0x00007fbd93f26990 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
(gdb)
--snip--
Date: Fri, 21 Mar 2025 20:38:03 -0400
Hi,
A program that has been happily using libcurl for years
started crashing when we upgraded libcurl from 8.10.1 to 8.11.1.
I was hoping the good folks here might be able
to point me in the right direction; the crash is within a libcurl
getaddrinfo call.
A sample gdb stack trace is at the end of the email.
- the OS is Ubuntu 22.04.5 LTS.
- there were no code changes in the program, just dependency updates
- the program is multi-threaded
Based on the fact that 'getaddrinfo' is mentioned in the stack trace, I
wonder if this is somehow related
to a PR that was merged into 8.11.0: https://github.com/curl/curl/pull/15475
Thanks for any help! And let me know if any other information would be
useful.
-Vadim
--snip--
Program terminated with signal SIGABRT, Aborted.
#0 0x00007fbd93e96a7c in pthread_kill () from
/lib/x86_64-linux-gnu/libc.so.6
[Current thread is 1 (Thread 0x7fbd849fa640 (LWP 1673034))]
(gdb) where
[custom signal handler bits removed for brevity]
#5 0x00007fbd93e96a7c in pthread_kill () from
/lib/x86_64-linux-gnu/libc.so.6
#6 0x00007fbd93e42476 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#7 0x00007fbd93e287f3 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#8 0x00007fbd93e8945c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#9 0x00007fbd93e89770 in __libc_fatal () from
/lib/x86_64-linux-gnu/libc.so.6
#10 0x00007fbd93f446af in __netlink_assert_response () from
/lib/x86_64-linux-gnu/libc.so.6
#11 0x00007fbd93f43e1e in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x00007fbd93f0bd71 in getaddrinfo () from
/lib/x86_64-linux-gnu/libc.so.6
#13 0x0000556ae604a3d8 in Curl_getaddrinfo_ex (nodename=<optimized out>,
servname=servname_at_entry=0x7fbd849f5cfc "443",
hints=hints_at_entry=0x7fbd91248b50,
result=result_at_entry=0x7fbd91248b48) at curl_addrinfo.c:121
#14 0x0000556ae603b73d in getaddrinfo_thread
(arg=arg_at_entry=0x7fbd91248b18) at asyn-thread.c:311
#15 0x0000556ae604aaff in curl_thread_create_thunk (arg=<optimized out>)
at curl_threads.c:59
#16 0x00007fbd93e94b43 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#17 0x00007fbd93f26990 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
(gdb)
--snip--
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