dab-rtlsdr-3 crashes with AddressSanitizer alloc-dealloc-mismatch on play

[ftesser]

Fresh install of rAudio image i20260216, updated to latest packages (20260407), DAB plugin installed. DAB scan completes successfully and stations are found. However, pressing play on any
DAB station causes dab-rtlsdr-3 error.

Steps to reproduce:

1. Fresh install from image i20260216 + full system update
2. Enable DAB feature and run DAB scan → stations found correctly
3. Select any DAB station and press play

Error from journalctl -u mediamtx:

 rAudio:~  #  journalctl -u mediamtx                                                                                                                                              
  Apr 09 21:13:34 rAudio systemd[1]: Started MediaMTX.                                                                                                                             
  Apr 09 21:13:36 rAudio mediamtx[1784]: 2026/04/09 21:13:36 INF MediaMTX v1.17.0, linux, armv7                                                                                    
  Apr 09 21:13:36 rAudio mediamtx[1784]: 2026/04/09 21:13:36 INF configuration loaded from /etc/mediamtx/mediamtx.yml                                                              
  Apr 09 21:13:36 rAudio mediamtx[1784]: 2026/04/09 21:13:36 INF [RTSP] listener opened on :8554 (TCP/RTSP), :8000 (UDP/RTP), :8001 (UDP/RTCP)                                     
  Apr 09 21:13:36 rAudio mediamtx[1784]: 2026/04/09 21:13:36 INF [RTMP] listener opened on :1935                                                                                   
  Apr 09 21:13:36 rAudio mediamtx[1784]: 2026/04/09 21:13:36 INF [HLS] listener opened on :8888                                                                                    
  Apr 09 21:13:36 rAudio mediamtx[1784]: 2026/04/09 21:13:36 INF [WebRTC] listener opened on :8889 (HTTP), :8189 (ICE/UDP)                                                         
  Apr 09 21:13:36 rAudio mediamtx[1784]: 2026/04/09 21:13:36 INF [SRT] listener opened on :8890 (UDP)                                                                              
  Apr 09 21:16:56 rAudio mediamtx[1784]: 2026/04/09 21:16:56 INF reloading configuration (file changed)                                                                            
  Apr 09 21:17:14 rAudio mediamtx[1784]: 2026/04/09 21:17:14 INF [RTSP] [conn [fe80::ba27:ebff:fe39:31d7%enu1u1u1]:35038] opened                                                   
  Apr 09 21:17:14 rAudio mediamtx[1784]: 2026/04/09 21:17:14 INF [path 7d_5264] runOnDemand command started                                                                        
  Apr 09 21:17:15 rAudio mediamtx[2292]: dab_cmdline example III,                                                                                                                  
  Apr 09 21:17:15 rAudio mediamtx[2292]:                            Copyright 2017 J van Katwijk, Lazy Chair Computing                                                             
  Apr 09 21:17:15 rAudio mediamtx[2292]: options are i:T:D:d:M:B:P:O:A:C:G:p:Q:S:                                                                                                  
  Apr 09 21:17:15 rAudio mediamtx[2292]: going for rtlsdr 194064000 50                                                                                                             
  Apr 09 21:17:15 rAudio mediamtx[2292]: OK, functions seem to be loaded                                                                                                           
  Apr 09 21:17:16 rAudio mediamtx[2292]: Found Rafael Micro R820T tuner                                                                                                            
  Apr 09 21:17:16 rAudio mediamtx[2292]: [R82XX] PLL not locked!                                                                                                                   
  Apr 09 21:17:16 rAudio mediamtx[2292]: samplerate set to 2048000                                                                                                                 
  Apr 09 21:17:16 rAudio mediamtx[2292]: Supported gain values (29): 0.0 0.9 1.4 2.7 3.7 7.7 8.7 12.5 14.4 15.7 16.6 19.7 20.7 22.9 25.4 28.0 29.7 32.8 33.8 36.4 37.2 38.6 40.2   
  42.1 43.4 43.9 44.5 48.0 49.6                                                                                                                                                    
  Apr 09 21:17:16 rAudio mediamtx[2292]: effective gain: gain 25.4                                                                                                                 
  Apr 09 21:17:20 rAudio mediamtx[1784]: 2026/04/09 21:17:20 INF [RTSP] [conn [::1]:34382] opened                                                                                  
  Apr 09 21:17:20 rAudio mediamtx[1784]: 2026/04/09 21:17:20 INF [RTSP] [session cbcb68ca] created by [::1]:34382                                                                  
  Apr 09 21:17:20 rAudio mediamtx[1784]: 2026/04/09 21:17:20 INF [path 7d_5264] stream is available and online, 1 track (MPEG-4 Audio)                                             
  Apr 09 21:17:20 rAudio mediamtx[1784]: 2026/04/09 21:17:20 INF [RTSP] [session cbcb68ca] is publishing to path '7d_5264'                                                         
  Apr 09 21:17:20 rAudio mediamtx[1784]: 2026/04/09 21:17:20 INF [RTSP] [session 795e2820] created by [fe80::ba27:ebff:fe39:31d7%enu1u1u1]:35038                                   
  Apr 09 21:17:20 rAudio mediamtx[1784]: 2026/04/09 21:17:20 INF [RTSP] [session 795e2820] is reading from path '7d_5264', with UDP, 1 track (MPEG-4 Audio)                        
  Apr 09 21:17:25 rAudio mediamtx[2292]: There does not seem to be a DAB signal here                                                                                               
  Apr 09 21:17:26 rAudio mediamtx[2292]: dab processor will stop                                                                                                                   
  Apr 09 21:17:27 rAudio mediamtx[2292]: =================================================================                                                                         
  Apr 09 21:17:27 rAudio mediamtx[2292]: ==2292==ERROR: AddressSanitizer: alloc-dealloc-mismatch (operator new [] vs operator delete) on 0x704bf500                                
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #0 0x76a571b8 in operator delete(void*) (/usr/lib/libasan.so.8+0xf01b8) (BuildId: b6fab03d4bb747fcf9ab2c13322eb6db29e7b71c)           
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #1 0x004c2648 in interLeaver::~interLeaver() (/usr/bin/dab-rtlsdr-3+0x32648) (BuildId: 9225fcd0823e8f9677065951bf35cf72fa852eb2)      
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #2 0x004eb32c in mscHandler::~mscHandler() (/usr/bin/dab-rtlsdr-3+0x5b32c) (BuildId: 9225fcd0823e8f9677065951bf35cf72fa852eb2)        
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #3 0x004bd510 in dabProcessor::~dabProcessor() (/usr/bin/dab-rtlsdr-3+0x2d510) (BuildId: 9225fcd0823e8f9677065951bf35cf72fa852eb2)    
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #4 0x004a6718 in main (/usr/bin/dab-rtlsdr-3+0x16718) (BuildId: 9225fcd0823e8f9677065951bf35cf72fa852eb2)                             
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #5 0x7640ba14  (/usr/lib/libc.so.6+0x1fa14) (BuildId: f8e650610ce6bf73a6aaae9b19ad2af7ebc10d87)                                       
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #6 0x7640bb08 in __libc_start_main (/usr/lib/libc.so.6+0x1fb08) (BuildId: f8e650610ce6bf73a6aaae9b19ad2af7ebc10d87)                   
  Apr 09 21:17:27 rAudio mediamtx[2292]: 0x704bf500 is located 0 bytes inside of 4096-byte region [0x704bf500,0x704c0500)                                                          
  Apr 09 21:17:27 rAudio mediamtx[2292]: allocated by thread T0 here:                                                                                                              
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #0 0x76a567d4 in operator new[](unsigned int) (/usr/lib/libasan.so.8+0xef7d4) (BuildId: b6fab03d4bb747fcf9ab2c13322eb6db29e7b71c)     
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #1 0x004c23b4 in interLeaver::interLeaver(unsigned char) (/usr/bin/dab-rtlsdr-3+0x323b4) (BuildId:                                    
  9225fcd0823e8f9677065951bf35cf72fa852eb2)                                                                                                                                        
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #2 0x004e9d0c in mscHandler::mscHandler(API_struct*, void*) (/usr/bin/dab-rtlsdr-3+0x59d0c) (BuildId:                                 
  9225fcd0823e8f9677065951bf35cf72fa852eb2)                                                                                                                                        
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #3 0x004bc2a0 in dabProcessor::dabProcessor(deviceHandler*, API_struct*, RingBuffer<std::complex<float> >*,                           
  RingBuffer<std::complex<float> >*, void*) (/usr/bin/dab-rtlsdr-3+0x2c2a0) (BuildId: 9225fcd0823e8f9677065951bf35cf72fa852eb2)                                                    
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #4 0x004b7b04 in dabInit (/usr/bin/dab-rtlsdr-3+0x27b04) (BuildId: 9225fcd0823e8f9677065951bf35cf72fa852eb2)                          
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #5 0x004a4b64 in main (/usr/bin/dab-rtlsdr-3+0x14b64) (BuildId: 9225fcd0823e8f9677065951bf35cf72fa852eb2)                             
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #6 0x7640ba14  (/usr/lib/libc.so.6+0x1fa14) (BuildId: f8e650610ce6bf73a6aaae9b19ad2af7ebc10d87)                                       
  Apr 09 21:17:27 rAudio mediamtx[2292]:     #7 0x7640bb08 in __libc_start_main (/usr/lib/libc.so.6+0x1fb08) (BuildId: f8e650610ce6bf73a6aaae9b19ad2af7ebc10d87)                   
  Apr 09 21:17:27 rAudio mediamtx[2292]: SUMMARY: AddressSanitizer: alloc-dealloc-mismatch (/usr/bin/dab-rtlsdr-3+0x32648) (BuildId: 9225fcd0823e8f9677065951bf35cf72fa852eb2) in  
  interLeaver::~interLeaver()                                                                                                                                                      
  Apr 09 21:17:27 rAudio mediamtx[2292]: ==2292==HINT: if you don't care about these errors you may set ASAN_OPTIONS=alloc_dealloc_mismatch=0                                      
  Apr 09 21:17:27 rAudio mediamtx[2292]: ==2292==ABORTING                                                                                                                          
  Apr 09 21:17:27 rAudio mediamtx[1784]: 2026/04/09 21:17:27 INF [RTSP] [session cbcb68ca] destroyed: torn down by [::1]:34382                                                     
  Apr 09 21:17:27 rAudio mediamtx[1784]: 2026/04/09 21:17:27 INF [RTSP] [conn [::1]:34382] closed: EOF                                                                             
  Apr 09 21:17:27 rAudio mediamtx[1784]: 2026/04/09 21:17:27 INF [RTSP] [conn [fe80::ba27:ebff:fe39:31d7%enu1u1u1]:35038] closed: terminated                                       
  Apr 09 21:17:27 rAudio mediamtx[1784]: 2026/04/09 21:17:27 INF [RTSP] [session 795e2820] destroyed: terminated                                                                   
  Apr 09 21:17:27 rAudio mediamtx[1784]: 2026/04/09 21:17:27 INF [path 7d_5264] runOnDemand command exited: command exited with code  

Workaround found (partial): Setting ASAN_OPTIONS=alloc_dealloc_mismatch=0 before dab-rtlsdr-3 prevents the abort, but the binary then crashes later with a std::vector out-of-bounds assertion when trying to decode audio:
sorry we cannot handle service
Assertion '__n < this->size()' failed.

So, I think the problem is the version of dab-rtl sdr-3 used.

Environment:

• Hardware: Raspberry Pi 3B+
• RTL-SDR: RTL2832U with R820T tuner