ASAN memory error
wch opened this issue · 2 comments
wch commented
To reproduce:
docker run --rm -ti wch1/r-debug
RDsan
devtools::install_github('rstudio/websocket')
library(websocket)
ws <- WebSocket$new("ws://echo.websocket.org/")
# Wait for a moment
ws$send("hello\n")
When it sends the message, this error occurs:
=================================================================
==29327==ERROR: AddressSanitizer: stack-use-after-scope on address 0x7ffe20d518a0 at pc 0x7f143c6dfd1d bp 0x7ffe20d51870 sp 0x7ffe20d51018
WRITE of size 8 at 0x7ffe20d518a0 thread T0
#0 0x7f143c6dfd1c (/usr/lib/x86_64-linux-gnu/libasan.so.5+0x99d1c)
#1 0x7f143bec33e2 in Rf_matchArgs /tmp/r-source/src/main/match.c:210
#2 0x7f143bd06afc in do_substitute /tmp/r-source/src/main/coerce.c:2725
#3 0x7f143be44ee4 in bcEval /tmp/r-source/src/main/eval.c:6791
#4 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#5 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#6 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#7 0x7f143be440cb in bcEval /tmp/r-source/src/main/eval.c:6739
#8 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#9 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#10 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#11 0x7f143be17f4b in Rf_eval /tmp/r-source/src/main/eval.c:743
#12 0x7f143be22821 in do_begin /tmp/r-source/src/main/eval.c:2382
#13 0x7f143be17707 in Rf_eval /tmp/r-source/src/main/eval.c:695
#14 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#15 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#16 0x7f143be17f4b in Rf_eval /tmp/r-source/src/main/eval.c:743
#17 0x7f143be22821 in do_begin /tmp/r-source/src/main/eval.c:2382
#18 0x7f143be17707 in Rf_eval /tmp/r-source/src/main/eval.c:695
#19 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#20 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#21 0x7f143be17f4b in Rf_eval /tmp/r-source/src/main/eval.c:743
#22 0x7f143be27f41 in do_eval /tmp/r-source/src/main/eval.c:3186
#23 0x7f143be4497f in bcEval /tmp/r-source/src/main/eval.c:6771
#24 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#25 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#26 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#27 0x7f143be17f4b in Rf_eval /tmp/r-source/src/main/eval.c:743
#28 0x7f143be16493 in forcePromise /tmp/r-source/src/main/eval.c:516
#29 0x7f143be2e109 in FORCE_PROMISE /tmp/r-source/src/main/eval.c:4897
#30 0x7f143be2e9c9 in getvar /tmp/r-source/src/main/eval.c:4970
#31 0x7f143be3d7c2 in bcEval /tmp/r-source/src/main/eval.c:6523
#32 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#33 0x7f143be16493 in forcePromise /tmp/r-source/src/main/eval.c:516
#34 0x7f143be2e109 in FORCE_PROMISE /tmp/r-source/src/main/eval.c:4897
#35 0x7f143be2e9c9 in getvar /tmp/r-source/src/main/eval.c:4970
#36 0x7f143be3d7c2 in bcEval /tmp/r-source/src/main/eval.c:6523
#37 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#38 0x7f143be16493 in forcePromise /tmp/r-source/src/main/eval.c:516
#39 0x7f143be2e109 in FORCE_PROMISE /tmp/r-source/src/main/eval.c:4897
#40 0x7f143be2e9c9 in getvar /tmp/r-source/src/main/eval.c:4970
#41 0x7f143be3d7c2 in bcEval /tmp/r-source/src/main/eval.c:6523
#42 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#43 0x7f143be16493 in forcePromise /tmp/r-source/src/main/eval.c:516
#44 0x7f143be2e109 in FORCE_PROMISE /tmp/r-source/src/main/eval.c:4897
#45 0x7f143be2e9c9 in getvar /tmp/r-source/src/main/eval.c:4970
#46 0x7f143be3d7c2 in bcEval /tmp/r-source/src/main/eval.c:6523
#47 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#48 0x7f143be16493 in forcePromise /tmp/r-source/src/main/eval.c:516
#49 0x7f143be2e109 in FORCE_PROMISE /tmp/r-source/src/main/eval.c:4897
#50 0x7f143be2e9c9 in getvar /tmp/r-source/src/main/eval.c:4970
#51 0x7f143be3d7c2 in bcEval /tmp/r-source/src/main/eval.c:6523
#52 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#53 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#54 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#55 0x7f143be440cb in bcEval /tmp/r-source/src/main/eval.c:6739
#56 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#57 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#58 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#59 0x7f143be440cb in bcEval /tmp/r-source/src/main/eval.c:6739
#60 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#61 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#62 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#63 0x7f143be440cb in bcEval /tmp/r-source/src/main/eval.c:6739
#64 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#65 0x7f143be16493 in forcePromise /tmp/r-source/src/main/eval.c:516
#66 0x7f143be2e109 in FORCE_PROMISE /tmp/r-source/src/main/eval.c:4897
#67 0x7f143be2e9c9 in getvar /tmp/r-source/src/main/eval.c:4970
#68 0x7f143be3d7c2 in bcEval /tmp/r-source/src/main/eval.c:6523
#69 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#70 0x7f143be16493 in forcePromise /tmp/r-source/src/main/eval.c:516
#71 0x7f143be2e109 in FORCE_PROMISE /tmp/r-source/src/main/eval.c:4897
#72 0x7f143be2e9c9 in getvar /tmp/r-source/src/main/eval.c:4970
#73 0x7f143be3d7c2 in bcEval /tmp/r-source/src/main/eval.c:6523
#74 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#75 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#76 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#77 0x7f143be440cb in bcEval /tmp/r-source/src/main/eval.c:6739
#78 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#79 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#80 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#81 0x7f143be440cb in bcEval /tmp/r-source/src/main/eval.c:6739
#82 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#83 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#84 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#85 0x7f143be440cb in bcEval /tmp/r-source/src/main/eval.c:6739
#86 0x7f143be16c82 in Rf_eval /tmp/r-source/src/main/eval.c:620
#87 0x7f143be1cb1e in R_execClosure /tmp/r-source/src/main/eval.c:1780
#88 0x7f143be1c26c in Rf_applyClosure /tmp/r-source/src/main/eval.c:1706
#89 0x7f143be17f4b in Rf_eval /tmp/r-source/src/main/eval.c:743
#90 0x7f142cb3bdce in Rcpp::internal::Rcpp_eval_impl(SEXPREC*, SEXPREC*) /usr/local/RDsan/lib/R/site-library/Rcpp/include/Rcpp/api/meat/Rcpp_eval.h:49
#91 0x7f142cb3c155 in Rcpp::Rcpp_eval(SEXPREC*, SEXPREC*) /usr/local/RDsan/lib/R/site-library/Rcpp/include/Rcpp/api/meat/Rcpp_eval.h:92
#92 0x7f142cb3bdf3 in Rcpp::Rcpp_fast_eval(SEXPREC*, SEXPREC*) /usr/local/RDsan/lib/R/site-library/Rcpp/include/Rcpp/api/meat/Rcpp_eval.h:69
#93 0x7f142cb5ce8c in Rcpp::Function_Impl<Rcpp::PreserveStorage>::operator()() const (/usr/local/RDsan/lib/R/site-library/later/libs/later.so+0x142e8c)
#94 0x7f142cb5a933 in boost::detail::function::void_function_obj_invoker0<Rcpp::Function_Impl<Rcpp::PreserveStorage>, void>::invoke(boost::detail::function::function_buffer&) (/usr/local/RDsan/lib/R/site-library/later/libs/later.so+0x140933)
#95 0x7f142cb64706 in boost::function0<void>::operator()() const /usr/local/RD/lib/R/library/BH/include/boost/function/function_template.hpp:763
#96 0x7f142cb6363b in Callback::operator()() const /tmp/Rtmpm9zFKv/R.INSTALL75159ef503/later/src/callback_registry.h:26
#97 0x7f142cb619fe in execCallbacks(double, bool) /tmp/Rtmpm9zFKv/R.INSTALL75159ef503/later/src/later.cpp:98
#98 0x7f142cb61bb7 in execCallbacksForTopLevel() /tmp/Rtmpm9zFKv/R.INSTALL75159ef503/later/src/later.cpp:116
#99 0x7f142cb6a20a in async_input_handler /tmp/Rtmpm9zFKv/R.INSTALL75159ef503/later/src/later_posix.cpp:124
#100 0x7f143c0b6086 in R_runHandlers /tmp/r-source/src/unix/sys-std.c:410
#101 0x7f143c0b865e in Rstd_ReadConsole /tmp/r-source/src/unix/sys-std.c:1060
#102 0x7f143c0ba579 in R_ReadConsole /tmp/r-source/src/unix/system.c:72
#103 0x7f143bebbaee in Rf_ReplIteration /tmp/r-source/src/main/main.c:208
#104 0x7f143bebc1d4 in R_ReplConsole /tmp/r-source/src/main/main.c:310
#105 0x7f143bebe644 in run_Rmainloop /tmp/r-source/src/main/main.c:1086
#106 0x7f143bebe65a in Rf_mainloop /tmp/r-source/src/main/main.c:1093
#107 0x565478400ac0 in main /tmp/r-source/src/main/Rmain.c:29
#108 0x7f143aa42b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#109 0x565478400999 in _start (/usr/local/RDsan/lib/R/bin/exec/R+0x999)
Address 0x7ffe20d518a0 is located in stack of thread T0
SUMMARY: AddressSanitizer: stack-use-after-scope (/usr/lib/x86_64-linux-gnu/libasan.so.5+0x99d1c)
Shadow bytes around the buggy address:
0x1000441a22c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x1000441a22d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x1000441a22e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x1000441a22f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x1000441a2300: 00 00 00 00 00 00 00 00 f8 f8 f8 f8 f8 f8 f8 f8
=>0x1000441a2310: ca ca ca ca[f8]cb cb cb cb cb cb cb 00 00 00 00
0x1000441a2320: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x1000441a2330: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x1000441a2340: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x1000441a2350: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x1000441a2360: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
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
Left alloca redzone: ca
Right alloca redzone: cb
==29327==ABORTING
This is with:
R Under development (unstable) (2019-02-25 r76159) -- "Unsuffered Consequences"
wch commented
Looking at the source, that it refers to, I don't see how it could be usage of a stack variable that has gone out of scope:
https://github.com/wch/r-source/blob/247ec801e191a6f77e08c38176ada7f9c4a46421/src/main/match.c#L210
wch commented
Closing because this is probably a false alarm.