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* Improve the timeouts for some problematic qtests

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* Enable some ROP mitigation compiler switches
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Merge tag 'pull-request-2024-01-16' of https://gitlab.com/thuth/qemu into staging

* Improve the timeouts for some problematic qtests
* Enable some ROP mitigation compiler switches

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# gpg: Signature made Tue 16 Jan 2024 07:45:57 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2024-01-16' of https://gitlab.com/thuth/qemu:
  meson: mitigate against use of uninitialize stack for exploits
  meson: mitigate against ROP exploits with -fzero-call-used-regs
  qtest: Bump npcm7xx_watchdog_timer-test timeout to 2 minutes
  tests/qtest/npcm7xx_watchdog_timer: Only test the corner cases by default
  tests/qtest/meson.build: Bump the boot-serial-test timeout to 4 minutes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2024-01-18 12:47:45 +00:00
commit f94e74a7e2
3 changed files with 21 additions and 3 deletions
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16
meson.build
View File

@ -552,6 +552,22 @@ if get_option('cfi')
add_global_link_arguments(cfi_flags, native: false, language: all_languages)
endif
# Check further flags that make QEMU more robust against malicious parties
hardening_flags = [
# Zero out registers used during a function call
# upon its return. This makes it harder to assemble
# ROP gadgets into something usable
'-fzero-call-used-regs=used-gpr',
# Initialize all stack variables to zero. This makes
# it harder to take advantage of uninitialized stack
# data to drive exploits
'-ftrivial-auto-var-init=zero',
]
qemu_common_flags += cc.get_supported_arguments(hardening_flags)
add_global_arguments(qemu_common_flags, native: false, language: all_languages)
add_global_link_arguments(qemu_ldflags, native: false, language: all_languages)

3
tests/qtest/meson.build
View File

@ -4,11 +4,12 @@ slow_qtests = {
'device-introspect-test' : 720,
'migration-test' : 480,
'npcm7xx_pwm-test': 300,
'npcm7xx_watchdog_timer-test': 120,
'qom-test' : 900,
'test-hmp' : 240,
'pxe-test': 600,
'prom-env-test': 360,
'boot-serial-test': 180,
'boot-serial-test': 240,
'qos-test': 120,
}

5
tests/qtest/npcm7xx_watchdog_timer-test.c
View File

@ -172,9 +172,10 @@ static void test_reset_action(gconstpointer watchdog)
static void test_prescaler(gconstpointer watchdog)
{
const Watchdog *wd = watchdog;
int inc = g_test_quick() ? 3 : 1;
for (int wtclk = 0; wtclk < 4; ++wtclk) {
for (int wtis = 0; wtis < 4; ++wtis) {
for (int wtclk = 0; wtclk < 4; wtclk += inc) {
for (int wtis = 0; wtis < 4; wtis += inc) {
QTestState *qts = qtest_init("-machine quanta-gsj");
qtest_irq_intercept_in(qts, "/machine/soc/a9mpcore/gic");