This reverts commit 74cdb253ba.
Chromium (and thus WebView) no longer uses Breakpad for crash reporting,
so the old compat syscalls that were whitelisted for Breakpad can be
moved back to the APP list.
Test: `am start com.android.settings/.SettingsLicenseActivity`
Test: Get the pid of the sandboxed_process0 for the license viewer.
Test: Send the process SIGABRT and check logcat for Crashpad log
messages.
Bug: 115557900
Change-Id: I877ebe6bfabec544e58723b2e9a2f84c9cbf0a57
These system calls are required by Breakpad for crash reporting.
WebViews are spawned from the webview_zygote, which itself is spawned
from the app_process zygote. The webview_zygote gets the SYSTEM seccomp
policy applied because it is not an app, and so the WebView sandboxed
processes inherit that policy.
In Ifd8a85b0de2eb6f2a76a6458570fc03b020a90ab, these system calls were
moved from COMMON to APP, which breaks Breakpad/crash reporting for
WebView sandboxed processes.
Bug: 112572914
Test: `am start com.android.settings/.SettingsLicenseActivity`
Test: Get the pid of the sandboxed_process0 for the license viewer.
Test: Send the process SIGABRT and check logcat for "google-breakpad"
error messages.
Change-Id: I1cf56ae85b1a67ec91e979bc7e0f941726a9cc0e
This change allows the use of read(2) and getdents(2) so that UBSan can
work correctly on x86_64.
Bug: 111999822
Test: CtsWrapWrapDebugTestCases
Change-Id: I44aac17fffdffc5c3f5d87fb3d876af28c8044b2
This reverts commit 040c28a023.
Reason for revert: reland since the actual problem has been fixed
Change-Id: Ifd8a85b0de2eb6f2a76a6458570fc03b020a90ab
Test: the apps in the bug no longer crashes.
Bug: 76461821
521b41 "Allow system processes to use vfork"
ed74ab "Move some syscalls in commmon whitelist to app"
An implementation bug actually assigns the system seccomp filter to all
processes after zygote forks.
Test: the apps in the bug no longer crashes.
Bug: 76461821
java.lang.ProcessBuilder is internally using vfork in the current
configuration (see UNIXProcess_md.c in libcore).
Test: On an x86 Chromebook, trigger dropbox error event (1. settings
put global logcat_for_system_app_anr 50; 2. kill -19 `pidof
com.android.settings'; touch Settings). Saw seccomp error in
logcat but only without this fix.
Test: fyi, not reproducible on walleye (arm64)
Bug: 74441404
Change-Id: I1f40ae0fe0607c5834ecbe040ed31c4c0e42131d
To pave the way to reducing app's kernel attack surface, this change
split the single filter into one for system and one for apps. Note that
there is current no change between them.
Zygote will apply these filters appropriately to system server and apps.
Keep set_seccomp_filter() for now until the caller has switched to the
new API, which I will do immediately after this before the two filters
diverse.
Also remove get_seccomp_filter() since it doesn't seem to be used
anyway.
Test: diff the generated code, no difference except the variable names
Test: cts -m CtsSecurityTestCases -t android.security.cts.SeccompTest
Bug: 63944145
Change-Id: Id8ba05a87332c92ec697926af77bc5742eb04b23
