[qca] [Bug 482819] kwalletd6 sometimes crashed in QCA::PrivateKey::deriveKey when starting Proton VPN GUI

[Matt Fagnani]

https://bugs.kde.org/show_bug.cgi?id=482819

--- Comment #26 from Matt Fagnani <matt.fagnani at bell.net> ---
I switched /etc/pki/tls/openssl.cnf back to the old config and rebooted. I
closed the wallet and ran killall kwalletd6 twice. I ran ltrace -fCe
'DH_*+OSSL_*' kwalletd6 I opened the wallet. I ran protonvpn-app which crashed.
kwalletd6 crashed after some of the DH functions as shown in the output.

ltrace -fCe 'DH_*+OSSL_*' kwalletd6
kf.wallet.kwalletd: Lacking a socket, pipe: 0 env: 0
[pid 3618] +++ exited (status 0) +++
[pid 3617] +++ exited (status 0) +++
[pid 3616] +++ exited (status 0) +++
[pid 3615] +++ exited (status 0) +++
[pid 3614] +++ exited (status 0) +++
[pid 3613] +++ exited (status 0) +++
[pid 3654] +++ exited (status 0) +++
[pid 3603] --- SIGCHLD (Child exited) ---
[pid 3655] --- Called exec() ---
[pid 3655] +++ exited (status 0) +++
[pid 3656] +++ exited (status 0) +++
[pid 3603] --- SIGCHLD (Child exited) ---
[pid 3657] --- Called exec() ---
[pid 3657] +++ exited (status 0) +++
[pid 3658] +++ exited (status 0) +++
[pid 3603] --- SIGCHLD (Child exited) ---
[pid 3659] --- Called exec() ---
[pid 3659] +++ exited (status 0) +++
[pid 3660] +++ exited (status 0) +++
[pid 3603] --- SIGCHLD (Child exited) ---
[pid 3661] --- Called exec() ---
[pid 3661] +++ exited (status 0) +++
[pid 3662] +++ exited (status 0) +++
[pid 3603] --- SIGCHLD (Child exited) ---
[pid 3663] --- Called exec() ---
[pid 3663] +++ exited (status 0) +++
[pid 3664] +++ exited (status 0) +++
[pid 3603] --- SIGCHLD (Child exited) ---
[pid 3665] --- Called exec() ---
[pid 3665] +++ exited (status 0) +++
[pid 3677] +++ exited (status 0) +++
[pid 3603] --- SIGCHLD (Child exited) ---
[pid 3678] --- Called exec() ---
[pid 3678] +++ exited (status 0) +++
[pid 3603] libQt6Core.so.6->OSSL_PROVIDER_load(0, 0x7fb30e297499,
0x55d4cee99010, 1) = 0x7fb2e8001ff0
[pid 3682] +++ exited (status 0) +++
[pid 3603] --- SIGCHLD (Child exited) ---
[pid 3683] --- Called exec() ---
[pid 3683] +++ exited (status 0) +++
[pid 3603] libQt6Core.so.6->OSSL_PROVIDER_unload(0x7fb2e8001ff0,
0x55d4cf2530c0, 0xfffffffa, 0x7fb30d9f3b20) = 1
[pid 3603] libqca-ossl.so->OSSL_PROVIDER_try_load(0, 0x7fb2f19a10f1, 1,
0x7fb30d9f3ac0 <unfinished ...>
[pid 3603] legacy.so->OSSL_LIB_CTX_new_child(0x55d4cf2504b0, 0x7fb30c89f300,
24, 0x55d4cf26ac60) = 0x55d4cf25cfb0
[pid 3603] <... OSSL_PROVIDER_try_load resumed> )                         =
0x55d4cf2504b0
[pid 3603] libqca-ossl.so->DH_new(0x55d4cf205910, 0x55d4cf2059f0,
0x55d4cf25a630, 0) = 0x7fb2f400bd30
[pid 3603] libqca-ossl.so->DH_set0_pqg(0x7fb2f400bd30, 0x55d4cf24a2b0, 0,
0x55d4cf24a2d0) = 1
[pid 3603] libqca-ossl.so->DH_generate_key(0x7fb2f400bd30, 0x7fb30c8511c0, 16,
0xb10b8f96a080e01d) = 0
[pid 3603] libqca-ossl.so->DH_free(0x7fb2f400bd30, 0x55d4cf205c30,
0x55d19269ff25, 6) = 12
[pid 3603] libqca-ossl.so->DH_new(0x55d4cf205c08, 0, 1, 2)                =
0x7fb2f400bd30
[pid 3603] libqca-ossl.so->DH_set0_key(0x7fb2f400bd30, 0x55d4cf206bf0, 0, 1) =
1
[pid 3603] libqca-ossl.so->DH_set0_pqg(0x7fb2f400bd30, 0x55d4cf206160, 0,
0x55d4cf206180) = 1
[pid 3603] --- SIGSEGV (Segmentation fault) ---
[pid 3608] +++ killed by SIGSEGV +++
[pid 3606] +++ killed by SIGSEGV +++
[pid 3611] +++ killed by SIGSEGV +++
[pid 3612] +++ killed by SIGSEGV +++
[pid 3610] +++ killed by SIGSEGV +++
[pid 3609] +++ killed by SIGSEGV +++
[pid 3607] +++ killed by SIGSEGV +++
[pid 3605] +++ killed by SIGSEGV +++
[pid 3604] +++ killed by SIGSEGV +++
[pid 3603] +++ killed by SIGSEGV +++

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