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Bug #1293

open

Use after free in sink.ctf.fs finalize

Added by Simon Marchi 11 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Start date:
12/02/2020
Due date:
% Done:

0%

Estimated time:

Description

I run this:

./src/cli/babeltrace2 ~/lttng-traces/auto-20200318-221703 -c sink.ctf.fs -p 'path="/tmp/yo"'

and interrupt with with ^C while it's running. I get:

➜  babeltrace ./src/cli/babeltrace2 ~/lttng-traces/auto-20200318-221703 -c sink.ctf.fs -p 'path="/tmp/yo"'                                                                                                                                                                                                                   
^C=================================================================                                                                                                                                                                                                                                                          
==1611811==ERROR: AddressSanitizer: heap-use-after-free on address 0x60d000001de8 at pc 0x7faa59a98c13 bp 0x7fff9f10b9b0 sp 0x7fff9f10b9a0                                                                                                                                                                                   
READ of size 8 at 0x60d000001de8 thread T0                                                                                                                                                                                                                                                                                   
    #0 0x7faa59a98c12 in bt_trace_get_environment_entry_count /home/simark/src/babeltrace/src/lib/trace-ir/trace.c:345                                                                                                                                                                                                       
    #1 0x7faa5663faed in translate_trace_ctf_ir_to_tsdl /home/simark/src/babeltrace/src/plugins/ctf/fs-sink/translate-ctf-ir-to-tsdl.c:935                                                                                                                                                                                   
    #2 0x7faa566496f4 in fs_sink_trace_destroy /home/simark/src/babeltrace/src/plugins/ctf/fs-sink/fs-sink-trace.c:499                                                                                                                                                                                                       
    #3 0x7faa598959d1  (/usr/lib/libglib-2.0.so.0+0x3c9d1)                                                                                                                                                                                                                                                                   
    #4 0x7faa5989663a in g_hash_table_remove_all (/usr/lib/libglib-2.0.so.0+0x3d63a)                                                                                                                                                                                                                                         
    #5 0x7faa59899d5e in g_hash_table_destroy (/usr/lib/libglib-2.0.so.0+0x40d5e)                                                                                                                                                                                                                                            
    #6 0x7faa5662a894 in destroy_fs_sink_comp /home/simark/src/babeltrace/src/plugins/ctf/fs-sink/fs-sink.c:132                                                                                                                                                                                                                  #7 0x7faa5663161b in ctf_fs_sink_finalize /home/simark/src/babeltrace/src/plugins/ctf/fs-sink/fs-sink.c:1141                                              
    #8 0x7faa59a2f50b in finalize_component /home/simark/src/babeltrace/src/lib/graph/component.c:97                                                                                                                                                                                                                             #9 0x7faa59a2f87a in destroy_component /home/simark/src/babeltrace/src/lib/graph/component.c:148                                                          
    #10 0x7faa59a340e2 in bt_object_try_spec_release /home/simark/src/babeltrace/src/lib/object.h:145                                                                                                                                                                                                                            #11 0x7faa5987765f  (/usr/lib/libglib-2.0.so.0+0x1e65f)                    
    #12 0x7faa59a34ee6 in destroy_graph /home/simark/src/babeltrace/src/lib/graph/graph.c:103                                                                                                                                                                                                                                
    #13 0x7faa59a346af in bt_object_put_ref_no_null_check /home/simark/src/babeltrace/src/lib/object.h:307                                                                                                                                                                                                                   
    #14 0x7faa59a34800 in bt_object_put_ref /home/simark/src/babeltrace/src/lib/object.h:335                                                                                                                                                                                                                                     #15 0x7faa59a3adb4 in bt_graph_put_ref /home/simark/src/babeltrace/src/lib/graph/graph.c:1331                                                             
    #16 0x55e2ffb90c67 in cmd_run_ctx_destroy /home/simark/src/babeltrace/src/cli/babeltrace2.c:1685                                                                                                                                                                                                                             #17 0x55e2ffb95d9e in cmd_run /home/simark/src/babeltrace/src/cli/babeltrace2.c:2538                                                                      
    #18 0x55e2ffb96a99 in main /home/simark/src/babeltrace/src/cli/babeltrace2.c:2673                    
    #19 0x7faa59696151 in __libc_start_main (/usr/lib/libc.so.6+0x28151)                                 
    #20 0x55e2ffb87fdd in _start (/home/simark/build/babeltrace/src/cli/.libs/lt-babeltrace2+0x1ffdd)    

0x60d000001de8 is located 104 bytes inside of 144-byte region [0x60d000001d80,0x60d000001e10)                          
freed by thread T0 here:                                                                                                                     
    #0 0x7faa59c1c0e9 in __interceptor_free /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cpp:123                                                    
    #1 0x7faa59a97b4a in destroy_trace /home/simark/src/babeltrace/src/lib/trace-ir/trace.c:143                                                               
    #2 0x7faa59a90621 in bt_object_put_ref_no_null_check /home/simark/src/babeltrace/src/lib/object.h:307                                    
    #3 0x7faa59a8ff99 in bt_object_with_parent_release_func /home/simark/src/babeltrace/src/lib/object.h:178
    #4 0x7faa59a8b329 in bt_object_put_ref_no_null_check /home/simark/src/babeltrace/src/lib/object.h:307
    #5 0x7faa59a8c2f1 in bt_packet_recycle /home/simark/src/babeltrace/src/lib/trace-ir/packet.c:131                               
    #6 0x7faa59a8b329 in bt_object_put_ref_no_null_check /home/simark/src/babeltrace/src/lib/object.h:307                          
    #7 0x7faa59a8b47a in bt_object_put_ref /home/simark/src/babeltrace/src/lib/object.h:335                               
    #8 0x7faa59a8ccc4 in bt_packet_put_ref /home/simark/src/babeltrace/src/lib/trace-ir/packet.c:236
    #9 0x7faa56643f48 in fs_sink_stream_destroy /home/simark/src/babeltrace/src/plugins/ctf/fs-sink/fs-sink-stream.c:39
    #10 0x7faa598959d1  (/usr/lib/libglib-2.0.so.0+0x3c9d1)                                                                                  

previously allocated by thread T0 here:                                                                                                      
    #0 0x7faa59c1c639 in __interceptor_calloc /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cpp:154                         
    #1 0x7faa598a9641 in g_malloc0 (/usr/lib/libglib-2.0.so.0+0x50641)                                                                                        
    #2 0x7faa566568b8 in ctf_fs_trace_create /home/simark/src/babeltrace/src/plugins/ctf/fs-src/fs.c:1080                                                     
    #3 0x7faa566572b0 in ctf_fs_component_create_ctf_fs_trace_one_path /home/simark/src/babeltrace/src/plugins/ctf/fs-src/fs.c:1183                           
    #4 0x7faa5665be1d in ctf_fs_component_create_ctf_fs_trace /home/simark/src/babeltrace/src/plugins/ctf/fs-src/fs.c:2097                                    
    #5 0x7faa5665dff0 in ctf_fs_create /home/simark/src/babeltrace/src/plugins/ctf/fs-src/fs.c:2397                                                           
    #6 0x7faa5665e172 in ctf_fs_init /home/simark/src/babeltrace/src/plugins/ctf/fs-src/fs.c:2431                                                             
    #7 0x7faa59a39c15 in add_component_with_init_method_data /home/simark/src/babeltrace/src/lib/graph/graph.c:1048                                           
    #8 0x7faa59a3a2fb in add_source_component_with_initialize_method_data /home/simark/src/babeltrace/src/lib/graph/graph.c:1127                              
    #9 0x7faa59a3a3a2 in bt_graph_add_source_component /home/simark/src/babeltrace/src/lib/graph/graph.c:1152                                                 
    #10 0x55e2ffb94343 in cmd_run_ctx_create_components_from_config_components /home/simark/src/babeltrace/src/cli/babeltrace2.c:2252                         
    #11 0x55e2ffb94ff7 in cmd_run_ctx_create_components /home/simark/src/babeltrace/src/cli/babeltrace2.c:2347                                                
    #12 0x55e2ffb95825 in cmd_run /home/simark/src/babeltrace/src/cli/babeltrace2.c:2461                                                                      
    #13 0x55e2ffb96a99 in main /home/simark/src/babeltrace/src/cli/babeltrace2.c:2673                                                                         
    #14 0x7faa59696151 in __libc_start_main (/usr/lib/libc.so.6+0x28151)                                                                                      

SUMMARY: AddressSanitizer: heap-use-after-free /home/simark/src/babeltrace/src/lib/trace-ir/trace.c:345 in bt_trace_get_environment_entry_count      

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