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Posted to issues@trafficserver.apache.org by "Leif Hedstrom (JIRA)" <ji...@apache.org> on 2016/05/07 01:15:13 UTC

[jira] [Created] (TS-4424) ASAN: heap-buffer-overflow in 6.2.x branch

Leif Hedstrom created TS-4424:
---------------------------------

             Summary: ASAN: heap-buffer-overflow in 6.2.x branch
                 Key: TS-4424
                 URL: https://issues.apache.org/jira/browse/TS-4424
             Project: Traffic Server
          Issue Type: Bug
          Components: Core
            Reporter: Leif Hedstrom


From a few days ago:

{code}
[May  2 16:09:34.060] Manager {0x7f44c4e94800} WARNING: Be aware that access control checks for HTTP/2 connections are not active!
[May  2 16:09:34.060] Manager {0x7f44c4e94800} WARNING: Be aware that access control checks for HTTP/2 connections are not active!
=================================================================
==17268==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x62a0064b5000 at pc 0x2b8fd0a73615 bp 0x7ffd34d416e0 sp 0x7ffd34d40e90
READ of size 16384 at 0x62a0064b5000 thread T0 ([ET_NET 0])
    #0 0x2b8fd0a73614 in __asan_memcpy ../../../../libsanitizer/asan/asan_interceptors.cc:367
    #1 0x2b8fd26f7b63 in ssl3_write_bytes (/opt/openssl/lib/libssl.so.1.0.0+0x29b63)
    #2 0xbfe2e0 in SSLWriteBuffer(ssl_st*, void const*, long, long&) /usr/local/src/trafficserver/iocore/net/SSLUtils.cc:2041
    #3 0xbd2a6a in SSLNetVConnection::load_buffer_and_write(long, long&, long&, MIOBufferAccessor&, int&) /usr/local/src/trafficserver/iocore/net/SSLNetVConnection.cc:735
    #4 0xc48dad in write_to_net_io(NetHandler*, UnixNetVConnection*, EThread*) /usr/local/src/trafficserver/iocore/net/UnixNetVConnection.cc:511
    #5 0xc0a8ba in NetHandler::mainNetEvent(int, Event*) /usr/local/src/trafficserver/iocore/net/UnixNet.cc:529
    #6 0xcf6da3 in Continuation::handleEvent(int, void*) /usr/local/src/trafficserver/iocore/eventsystem/I_Continuation.h:153
    #7 0xcf6da3 in EThread::process_event(Event*, int) /usr/local/src/trafficserver/iocore/eventsystem/UnixEThread.cc:129
    #8 0xcf9d4a in EThread::execute() /usr/local/src/trafficserver/iocore/eventsystem/UnixEThread.cc:256
    #9 0x498ad5 in main /usr/local/src/trafficserver/proxy/Main.cc:1909
    #10 0x2b8fd475bb14 in __libc_start_main (/lib64/libc.so.6+0x21b14)
    #11 0x4a8244  (/opt/ats/bin/traffic_server+0x4a8244)

0x62a0064b5000 is located 0 bytes to the right of 16384-byte region [0x62a0064b1000,0x62a0064b5000)
allocated by thread T0 ([ET_NET 0]) here:
    #0 0x2b8fd0a7f9ae in __interceptor_posix_memalign ../../../../libsanitizer/asan/asan_malloc_linux.cc:105
    #1 0x2b8fd19b2ca9 in ats_memalign /usr/local/src/trafficserver/lib/ts/ink_memory.cc:105
    #2 0x2b8fd19b3f3e in ink_freelist_new /usr/local/src/trafficserver/lib/ts/ink_queue.cc:183
    #3 0x7d5670 in Allocator::alloc_void() ../../lib/ts/Allocator.h:63
    #4 0x7d5670 in IOBufferData::alloc(long, AllocType) ../../iocore/eventsystem/P_IOBuffer.h:282
    #5 0x7d5670 in new_IOBufferData_internal(char const*, long, AllocType) ../../iocore/eventsystem/P_IOBuffer.h:253
    #6 0x7d5670 in IOBufferBlock::alloc(long) ../../iocore/eventsystem/P_IOBuffer.h:396
    #7 0x7d5670 in Http2Frame::alloc(int) /usr/local/src/trafficserver/proxy/http2/Http2ClientSession.h:96
    #8 0x7d5670 in Http2ConnectionState::send_data_frame(Http2Stream*) /usr/local/src/trafficserver/proxy/http2/Http2ConnectionState.cc:959
    #9 0x7ea209 in Http2Stream::update_write_request(IOBufferReader*, long, bool) /usr/local/src/trafficserver/proxy/http2/Http2Stream.cc:462
    #10 0x7efe96 in Http2Stream::reenable(VIO*) /usr/local/src/trafficserver/proxy/http2/Http2Stream.cc:482
    #11 0x777c49 in VIO::reenable() ../../iocore/eventsystem/P_VIO.h:111
    #12 0x777c49 in HttpTunnel::producer_handler(int, HttpTunnelProducer*) /usr/local/src/trafficserver/proxy/http/HttpTunnel.cc:1199
    #13 0x77a0ee in HttpTunnel::main_handler(int, void*) /usr/local/src/trafficserver/proxy/http/HttpTunnel.cc:1568
    #14 0x9a2467 in Continuation::handleEvent(int, void*) ../../iocore/eventsystem/I_Continuation.h:153
    #15 0x9a2467 in CacheVC::calluser(int) ../../iocore/cache/P_CacheInternal.h:623
    #16 0xb21d2c in CacheVC::openReadMain(int, Event*) /usr/local/src/trafficserver/iocore/cache/CacheRead.cc:717
    #17 0x9a284c in Continuation::handleEvent(int, void*) ../../iocore/eventsystem/I_Continuation.h:153
    #18 0x9a284c in CacheVC::callcont(int) ../../iocore/cache/P_CacheInternal.h:642
    #19 0xb30df9 in CacheVC::openReadStartHead(int, Event*) /usr/local/src/trafficserver/iocore/cache/CacheRead.cc:1162
    #20 0xb29c07 in Continuation::handleEvent(int, void*) ../../iocore/eventsystem/I_Continuation.h:153
    #21 0xb29c07 in Cache::open_read(Continuation*, ats::CryptoHash const*, HTTPHdr*, CacheLookupHttpConfig*, CacheFragType, char const*, int) /usr/local/src/trafficserver/iocore/cache/CacheRead.cc:159
    #22 0x648a63 in HttpCacheSM::do_cache_open_read(HttpCacheKey const&) /usr/local/src/trafficserver/proxy/http/HttpCacheSM.cc:237
    #23 0x648a63 in HttpCacheSM::open_read(HttpCacheKey const*, URL*, HTTPHdr*, CacheLookupHttpConfig*, long) /usr/local/src/trafficserver/proxy/http/HttpCacheSM.cc:270
    #24 0x67fb65 in HttpSM::do_cache_lookup_and_read() /usr/local/src/trafficserver/proxy/http/HttpSM.cc:4457
    #25 0x6be022 in HttpSM::set_next_state() /usr/local/src/trafficserver/proxy/http/HttpSM.cc:7168
    #26 0x6b03c9 in HttpSM::state_api_callout(int, void*) /usr/local/src/trafficserver/proxy/http/HttpSM.cc:1490
    #27 0x6be667 in HttpSM::set_next_state() /usr/local/src/trafficserver/proxy/http/HttpSM.cc:7058
    #28 0x6bd219 in HttpSM::set_next_state() /usr/local/src/trafficserver/proxy/http/HttpSM.cc:7072
    #29 0x6b03c9 in HttpSM::state_api_callout(int, void*) /usr/local/src/trafficserver/proxy/http/HttpSM.cc:1490
    #30 0x6be667 in HttpSM::set_next_state() /usr/local/src/trafficserver/proxy/http/HttpSM.cc:7058
    #31 0x6b03c9 in HttpSM::state_api_callout(int, void*) /usr/local/src/trafficserver/proxy/http/HttpSM.cc:1490
    #32 0x6c2bef in HttpSM::state_api_callback(int, void*) /usr/local/src/trafficserver/proxy/http/HttpSM.cc:1287
    #33 0x56c006 in TSHttpTxnReenable /usr/local/src/trafficserver/proxy/InkAPI.cc:5635
    #34 0x2b8fd9cbff45 in stats_origin /usr/local/src/trafficserver/plugins/stats_over_http/stats_over_http.c:280
    #35 0x5391e3 in INKContInternal::handle_event(int, void*) /usr/local/src/trafficserver/proxy/InkAPI.cc:993
    #36 0x6affe4 in HttpSM::state_api_callout(int, void*) /usr/local/src/trafficserver/proxy/http/HttpSM.cc:1408
    #37 0x6be667 in HttpSM::set_next_state() /usr/local/src/trafficserver/proxy/http/HttpSM.cc:7058
    #38 0x69574d in HttpSM::state_read_client_request_header(int, void*) /usr/local/src/trafficserver/proxy/http/HttpSM.cc:769
    #39 0x6c30f7 in HttpSM::main_handler(int, void*) /usr/local/src/trafficserver/proxy/http/HttpSM.cc:2600

SUMMARY: AddressSanitizer: heap-buffer-overflow ../../../../libsanitizer/asan/asan_interceptors.cc:367 __asan_memcpy
Shadow bytes around the buggy address:
  0x0c5480c8e9b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c5480c8e9c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c5480c8e9d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c5480c8e9e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c5480c8e9f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c5480c8ea00:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c5480c8ea10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c5480c8ea20: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c5480c8ea30: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c5480c8ea40: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c5480c8ea50: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Heap right redzone:      fb
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack partial redzone:   f4
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
==17268==ABORTING
{code}




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