frostwire-jlibtorrent: [CRASH/armv7/armv8] signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), Cause: null pointer dereference, #00 pc 0040be40 /data/app/com.frostwire.android-nZkrTtra2JFcV9da_RxcVg==/base.apk!libjlibtorrent.so (offset 0x1000) (BuildId: 05c2dfe3eda983ad09e90e3b4b75f5fcdeafc1c0)

9719-9719/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
9719-9719/? A/DEBUG: Build fingerprint: 'att/v341u/v341u:10/QKQ1.200311.002/V341U_A1_210524:user/release-keys'
9719-9719/? A/DEBUG: Revision: 'REV1.0'
9719-9719/? A/DEBUG: ABI: 'arm'
9719-9719/? A/DEBUG: Timestamp: 2021-08-31 21:38:19-0400
9719-9719/? A/DEBUG: pid: 9650, tid: 9713, name: Thread-6  >>> com.frostwire.android <<<
9719-9719/? A/DEBUG: uid: 10167
9719-9719/? A/DEBUG: signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0
9719-9719/? A/DEBUG: Cause: null pointer dereference
9719-9719/? A/DEBUG:     r0  00000000  r1  00000000  r2  00000038  r3  86179f40
9719-9719/? A/DEBUG:     r4  86179dc8  r5  9b3f19c0  r6  9b3c0d18  r7  86179dc8
9719-9719/? A/DEBUG:     r8  86179dd0  r9  8617a000  r10 86179f50  r11 86179f98
9719-9719/? A/DEBUG:     ip  00000000  sp  86179db8  lr  8679be28  pc  8679be40
9719-9719/? A/DEBUG: backtrace:
9719-9719/? A/DEBUG:       #00 pc 0040be40  /data/app/com.frostwire.android-nZkrTtra2JFcV9da_RxcVg==/base.apk!libjlibtorrent.so (offset 0x1000) (BuildId: 05c2dfe3eda983ad09e90e3b4b75f5fcdeafc1c0)
9719-9719/? A/DEBUG:       #01 pc 002bb368  /data/app/com.frostwire.android-nZkrTtra2JFcV9da_RxcVg==/base.apk!libjlibtorrent.so (offset 0x1000) (BuildId: 05c2dfe3eda983ad09e90e3b4b75f5fcdeafc1c0)
9719-9719/? A/DEBUG:       #02 pc 002bab7c  /data/app/com.frostwire.android-nZkrTtra2JFcV9da_RxcVg==/base.apk!libjlibtorrent.so (offset 0x1000) (BuildId: 05c2dfe3eda983ad09e90e3b4b75f5fcdeafc1c0)
9719-9719/? A/DEBUG:       #03 pc 002daf34  /data/app/com.frostwire.android-nZkrTtra2JFcV9da_RxcVg==/base.apk!libjlibtorrent.so (offset 0x1000) (BuildId: 05c2dfe3eda983ad09e90e3b4b75f5fcdeafc1c0)
9719-9719/? A/DEBUG:       #04 pc 002d1b28  /data/app/com.frostwire.android-nZkrTtra2JFcV9da_RxcVg==/base.apk!libjlibtorrent.so (offset 0x1000) (BuildId: 05c2dfe3eda983ad09e90e3b4b75f5fcdeafc1c0)
9719-9719/? A/DEBUG:       #05 pc 001ebcec  /data/app/com.frostwire.android-nZkrTtra2JFcV9da_RxcVg==/base.apk!libjlibtorrent.so (offset 0x1000) (boost::asio::detail::scheduler::do_run_one(boost::asio::detail::conditionally_enabled_mutex::scoped_lock&, boost::asio::detail::scheduler_thread_info&, boost::system::error_code const&)+568) (BuildId: 05c2dfe3eda983ad09e90e3b4b75f5fcdeafc1c0)
9719-9719/? A/DEBUG:       #06 pc 001eb8f0  /data/app/com.frostwire.android-nZkrTtra2JFcV9da_RxcVg==/base.apk!libjlibtorrent.so (offset 0x1000) (boost::asio::detail::scheduler::run(boost::system::error_code&)+216) (BuildId: 05c2dfe3eda983ad09e90e3b4b75f5fcdeafc1c0)
9719-9719/? A/DEBUG:       #07 pc 0029f450  /data/app/com.frostwire.android-nZkrTtra2JFcV9da_RxcVg==/base.apk!libjlibtorrent.so (offset 0x1000) (BuildId: 05c2dfe3eda983ad09e90e3b4b75f5fcdeafc1c0)
9719-9719/? A/DEBUG:       #08 pc 000aa8bb  /apex/com.android.runtime/lib/bionic/libc.so (__pthread_start(void*)+20) (BuildId: b638b588df5590a58c813e9e3a0c67dc)
9719-9719/? A/DEBUG:       #09 pc 00061993  /apex/com.android.runtime/lib/bionic/libc.so (__start_thread+30) (BuildId: b638b588df5590a58c813e9e3a0c67dc)

no clue, let’s see if I can find where exactly the issue is by uploading the symbol files once this crash starts appearing in Google Play crash logs.

Having a hard time getting the Android Studio Dual Debugger to work.

About this issue

Original URL
State: closed
Created 3 years ago
Comments: 15

Commits related to this issue

null pointer dereference in enum_net::iface_from_ifaddrs Fixes crash Android arm/arm64 devices when `TORRENT_USE_IFADDRS` is used. Solves [nasty crash found on frostwire for android](https://github.... — committed to gubatron/libtorrent by gubatron 3 years ago

Most upvoted comments

I believe that +196 means offset in object code (roughly assembler lines). You need debug information to be able to revert to the line in the source code.

aldenml on Sep 11, 2021

@gubatron I’m not familiar with the branch 1_2 anymore, but I just found that in master this line https://github.com/arvidn/libtorrent/blob/master/src/enum_net.cpp#L569 is the problem. Try to look for the equivalent and put a if (ifa->ifa_addr != nullptr) to see if that solves it.

aldenml on Sep 11, 2021