Alexander Potapenko b8dc994624 UPSTREAM: PM: hibernate: fix crashes with init_on_free=1 ...

Upon resuming from hibernation, free pages may contain stale data from
the kernel that initiated the resume. This breaks the invariant
inflicted by init_on_free=1 that freed pages must be zeroed.

To deal with this problem, make clear_free_pages() also clear the free
pages when init_on_free is enabled.

Fixes: 6471384af2a6 ("mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options")
Reported-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Alexander Potapenko <glider@google.com>
Cc: 5.3+ <stable@vger.kernel.org> # 5.3+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
(cherry picked from commit 18451f9f9e5810b8bd1245c5ae166f257e0e2b9d)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I32c22a60082bb3b49eae7de3c7d9d5ae2b965dc5

2020-11-16 09:22:34 +01:00

..

autosleep.c

UPSTREAM: PM / wakeup: Show wakeup sources stats in sysfs

2019-10-11 14:04:42 -07:00

console.c

…

energy_model.c

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hibernate.c

PM: hibernate: remove the bogus call to get_gendisk() in software_resume()

2020-10-30 10:38:28 +01:00

Kconfig

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main.c

ANDROID: GKI: export symbols from abi_gki_aarch64_qcom_whitelist

2020-04-13 21:36:41 +00:00

Makefile

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power.h

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poweroff.c

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process.c

ANDROID: power: wakeup_reason: wake reason enhancements

2020-04-09 15:27:37 +00:00

qos.c

ANDROID: GKI: qos: Register irq notify after adding the qos request

2020-04-23 00:35:53 +00:00

snapshot.c

UPSTREAM: PM: hibernate: fix crashes with init_on_free=1

2020-11-16 09:22:34 +01:00

suspend_test.c

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suspend.c

ANDROID: GKI: export symbols from abi_gki_aarch64_qcom_whitelist

2020-04-13 21:36:41 +00:00

swap.c

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user.c

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wakelock.c

UPSTREAM: PM / wakeup: Show wakeup sources stats in sysfs

2019-10-11 14:04:42 -07:00

wakeup_reason.c

ANDROID: fix wakeup reason findings

2020-04-24 01:05:45 +00:00