Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 329 by [email protected]: Unable to sanitize system_server on
android
http://code.google.com/p/address-sanitizer/issues/detail?id=329
What steps will reproduce the problem?
1. build an eng ROM with AOSP PLATFORM_VERSION 4.4.3.43.43.43
2. build again with WITH_ADDRESS_SANITIZER=true
3. run the emulator
4. use below commands to setup asan environment
$ adb logcat -c
$ adb shell setprop wrap.system_server "logwrapper asanwrapper"
$ adb shell stop
$ adb shell start
$ adb logcat -v threadtime > asan_system_server.log
5. system server cannot be started
What is the expected output? What do you see instead?
By referencing the
https://code.google.com/p/address-sanitizer/issues/detail?id=320#c2, I
expect sanitizing system_server is worked by setting system property.
From attached log, system_server cannot be started due to "execv failed:
EACCES (Permission denied)".
Please provide any additional information below.
$ adb shell getprop |grep wrapper
[wrap.system_server]: [logwrapper asanwrapper]
$ adb shell ls -l /system/bin | grep wrapper
-rwxr-xr-x root shell 5408 2014-07-25 07:56 asanwrapper
-rwxr-xr-x root shell 13660 2014-07-25 08:11 logwrapper
Some related runtime logs, please reference attached for all.
08-01 06:09:39.141 1064 1064 I Zygote : System server process 1548 has
been created
08-01 06:09:39.212 1064 1064 I Zygote : Accepting command socket
connections
08-01 06:09:39.390 1548 1548 W system_server: type=1400 audit(0.0:4):
avc: denied { execute } for name="sh" dev="mtdblock0" ino=238
scontext=u:r:system_server:s0 tcontext=u:object_r:shell_exec:s0 tclass=file
permissive=0
08-01 06:09:39.491 1548 1548 E Zygote : Zygote died with exception
08-01 06:09:39.491 1548 1548 E Zygote : java.lang.RuntimeException:
android.system.ErrnoException: execv failed: EACCES (Permission denied)
08-01 06:09:39.491 1548 1548 E Zygote : at
com.android.internal.os.Zygote.execShell(Zygote.java:146)
08-01 06:09:39.491 1548 1548 E Zygote : at
com.android.internal.os.WrapperInit.execApplication(WrapperInit.java:109)
08-01 06:09:39.491 1548 1548 E Zygote : at
com.android.internal.os.ZygoteInit.handleSystemServerProcess(ZygoteInit.java:493)
08-01 06:09:39.491 1548 1548 E Zygote : at
com.android.internal.os.ZygoteInit.startSystemServer(ZygoteInit.java:561)
08-01 06:09:39.491 1548 1548 E Zygote : at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:623)
08-01 06:09:39.491 1548 1548 E Zygote : Caused by:
android.system.ErrnoException: execv failed: EACCES (Permission denied)
08-01 06:09:39.491 1548 1548 E Zygote : at
libcore.io.Posix.execv(Native Method)
08-01 06:09:39.491 1548 1548 E Zygote : at
libcore.io.ForwardingOs.execv(ForwardingOs.java:63)
08-01 06:09:39.491 1548 1548 E Zygote : at
android.system.Os.execv(Os.java:109)
08-01 06:09:39.491 1548 1548 E Zygote : at
com.android.internal.os.Zygote.execShell(Zygote.java:144)
08-01 06:09:39.491 1548 1548 E Zygote : ... 4 more
08-01 06:09:39.491 1548 1548 D AndroidRuntime: Shutting down VM
08-01 06:09:39.955 1064 1064 E Zygote : Exit zygote because system
server (1548) has terminated
Attachments:
asan_system_server.log 734 KB
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