curl+openssl crashed

[xuvw]

I did this

0 libsystem_pthread.dylib 0x00000001f15ee54c pthread_rwlock_wrlock + 0 (inline_internal.h:87)
1 KNet 0x0000000108b52cf4 CRYPTO_THREAD_write_lock + 12 (threads_pthread.c:78)
2 KNet 0x0000000108b31b48 RAND_get_rand_method + 88 (rand_lib.c:851)
3 KNet 0x0000000108b320b8 RAND_status + 12 (rand_lib.c:960)
4 KNet 0x0000000108898118 rand_enough + 12
5 KNet 0x00000001088980ac ossl_seed + 64
6 KNet 0x0000000108898c10 ossl_connect_step1 + 1612
7 KNet 0x0000000108898220 ossl_connect_common + 232
8 KNet 0x0000000108896cf8 ossl_connect_nonblocking + 56
9 KNet 0x000000010889fff0 Curl_ssl_connect_nonblocking + 212
10 KNet 0x0000000108854a8c https_connecting + 68
11 KNet 0x00000001088549d4 Curl_http_connect + 320
12 KNet 0x000000010886ebb4 protocol_connect + 336
13 KNet 0x000000010886be20 multi_runsingle + 1944
14 KNet 0x000000010886b4a4 curl_multi_perform + 176
15 KNet 0x000000010884ad7c easy_transfer + 140
16 KNet 0x0000000108849b74 easy_perform + 404
17 KNet 0x00000001088499d4 curl_easy_perform + 32
18 KNet 0x000000010870c2c4 -[KNetDataTask startCurlLoading] + 1708 (KNetDataTask.m:408)
19 KNet 0x000000010870b744 -[KNetDataTask startLoading] + 188 (KNetDataTask.m:0)
20 KNet 0x000000010870b5b4 -[KNetDataTask resume_] + 220 (KNetDataTask.m:157)

I expected the following

no crash

curl/libcurl version

curl 7.84.0
OpenSSL 1.1.1k 25 Mar 2021

operating system

iPhone14 OS version:17.3.1

[bagder]

Thanks a lot for your report!

I've failed to reproduce this problem myself, so can I ask you to provide us with more details on how to go ahead and repeat this. Preferably with a command line or a stand-alone program we can run from our ends against a public URL to trigger the problem?

[xuvw]

Thanks a lot for your report!

I've failed to reproduce this problem myself, so can I ask you to provide us with more details on how to go ahead and repeat this. Preferably with a command line or a stand-alone program we can run from our ends against a public URL to trigger the problem?

This is occasional and difficult to reproduce.

[bagder]

This is occasional and difficult to reproduce.

Then I would suggest that your best remedy is to upgrade libcurl and openssl, as we have fixed numerous bugs since then and chances are a current version works better. If we can't reproduce the problem and you don't provide a busload of details, there is nothing for us to act on here.

[bagder]

 Presumed fixed in modern versions.