Ken Giusti created DISPATCH-2206:
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Summary: ASAN use-after-free of qdr_link_t by I/O thread
Key: DISPATCH-2206
URL: https://issues.apache.org/jira/browse/DISPATCH-2206
Project: Qpid Dispatch
Issue Type: Bug
Components: Router Node
Affects Versions: 1.16.1
Reporter: Ken Giusti
Fix For: 1.18.0
[https://github.com/apache/qpid-dispatch/blob/main/src/router_core/connections.c#L1344]
{{27: ==3859==ERROR: AddressSanitizer: use-after-poison on address
0x61700017e030 at pc 0x56212343cdac bp 0x7f9d33c40c90 sp 0x7f9d33c40c80 }}
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27: READ of size 8 at 0x61700017e030 thread T2
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27: #0 0x56212343cdab in qdr_link_get_context
../src/router_core/connections.c:498
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27: #1 0x56212352ec25 in CORE_link_second_attach ../src/router_node.c:1729
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27: #2 0x5621234388df in qdr_connection_process
../src/router_core/connections.c:355
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27: #3 0x56212338eccf in writable_handler ../src/container.c:396
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27: #4 0x56212338eccf in qd_container_handle_event ../src/container.c:748
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27: #5 0x562123547289 in handle ../src/server.c:1108
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27: #6 0x562123554c9f in thread_run ../src/server.c:1133
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27: #7 0x7f9d3ba6c608 in start_thread
(/lib/x86_64-linux-gnu/libpthread.so.0+0x9608)
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27: #8 0x7f9d3ac33292 in __clone (/lib/x86_64-linux-gnu/libc.so.6+0x122292)
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27:
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27: 0x61700017e030 is located 176 bytes inside of 704-byte region
[0x61700017df80,0x61700017e240)
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27: allocated by thread T2 here:
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27: #0 0x7f9d3bfd9aa5 in posix_memalign
(/lib/x86_64-linux-gnu/libasan.so.5+0x10eaa5)
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27: #1 0x5621233247b0 in qd_alloc ../src/alloc_pool.c:396
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27: #2 0x56212343d4c9 in qdr_link_first_attach
../src/router_core/connections.c:592
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27: #3 0x56212352dde9 in AMQP_outgoing_link_handler ../src/router_node.c:1018
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27: #4 0x562123547289 in handle ../src/server.c:1108
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27: #5 0x562123554c9f in thread_run ../src/server.c:1133
{{}}{{ }}{{}}
27: #6 0x7f9d3ba6c608 in start_thread
(/lib/x86_64-linux-gnu/libpthread.so.0+0x9608)
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27:
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27: Thread T2 created by T0 here:
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27: #0 0x7f9d3bf05805 in pthread_create
(/lib/x86_64-linux-gnu/libasan.so.5+0x3a805)
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27: #1 0x562123403bcf in sys_thread ../src/posix/threading.c:181
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27: #2 0x56212355541e in qd_server_run ../src/server.c:1522
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27: #3 0x56212359f46c in main_process ../router/src/main.c:115
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27: #4 0x56212329bc50 in main ../router/src/main.c:369
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27: #5 0x7f9d3ab380b2 in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x270b2)
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27:
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27: SUMMARY: AddressSanitizer: use-after-poison
../src/router_core/connections.c:498 in qdr_link_get_context
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27: Shadow bytes around the buggy address:
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27: 0x0c2e80027bb0: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
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27: 0x0c2e80027bc0: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
{{}}{{ }}{{}}
27: 0x0c2e80027bd0: f7 f7 f7 f7 f7 f7 f7 00 fa fa fa fa fa fa fa fa
{{}}{{ }}{{}}
27: 0x0c2e80027be0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
{{}}{{ }}{{}}
27: 0x0c2e80027bf0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
{{}}{{ }}{{}}
27: =>0x0c2e80027c00: 00 00 f7 f7 f7 f7[f7]f7 f7 f7 f7 f7 f7 f7 f7 f7
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27: 0x0c2e80027c10: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
{{}}{{ }}{{}}
27: 0x0c2e80027c20: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
{{}}{{ }}{{}}
27: 0x0c2e80027c30: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
{{}}{{ }}{{}}
27: 0x0c2e80027c40: f7 f7 f7 f7 f7 f7 f7 00 fa fa fa fa fa fa fa fa
{{}}{{ }}{{}}
27: 0x0c2e80027c50: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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27: Shadow byte legend (one shadow byte represents 8 application bytes):
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27: Addressable: 00
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27: Partially addressable: 01 02 03 04 05 06 07
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27: Heap left redzone: fa
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27: Freed heap region: fd
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27: Stack left redzone: f1
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27: Stack mid redzone: f2
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27: Stack right redzone: f3
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27: Stack after return: f5
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27: Stack use after scope: f8
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27: Global redzone: f9
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27: Global init order: f6
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27: Poisoned by user: f7
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27: Container overflow: fc
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27: Array cookie: ac
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27: Intra object redzone: bb
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27: ASan internal: fe
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27: Left alloca redzone: ca
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27: Right alloca redzone: cb
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27: Shadow gap: cc
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27: ==3859==ABORTING
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