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https://chromium.googlesource.com/crosvm/crosvm
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b1570f2672
In deallocate_cluster(), we call set_cluster_refcount() to unref the
cluster that is being deallocated, but we never actually added the
deallocated cluster to the unref_clusters list. Add clusters whose
refcounts reach 0 to the unref_clusters list as well.
Also add mremap() to the seccomp whitelist for the block device, since
this is being triggered by libc realloc() and other devices already
include it in the whitelist.
BUG=chromium:850998
TEST=cargo test -p qcow; test crosvm on nami and verify that qcow file
size stays bounded when creating a 1 GB file and deleting it
repeatedly
Change-Id: I1bdd96b2176dc13069417e0ac77f0768f9f26012
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1259404
Reviewed-by: Dylan Reid <dgreid@chromium.org>
44 lines
850 B
Text
44 lines
850 B
Text
# Copyright 2018 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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close: 1
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dup: 1
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dup2: 1
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exit_group: 1
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fallocate: 1
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fdatasync: 1
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fstat64: 1
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fsync: 1
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ftruncate64: 1
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futex: 1
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gettimeofday: 1
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_llseek: 1
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# Disallow mmap with PROT_EXEC set. The syntax here doesn't allow bit
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# negation, thus the manually negated mask constant.
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mmap2: arg2 in 0xfffffffb
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mprotect: arg2 in 0xfffffffb
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mremap: 1
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munmap: 1
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read: 1
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recv: 1
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sched_getaffinity: 1
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set_robust_list: 1
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sigaltstack: 1
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# Disallow clone's other than new threads.
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clone: arg0 & 0x00010000
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write: 1
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eventfd2: 1
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poll: 1
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ppoll: 1
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getpid: 1
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# Allow PR_SET_NAME only.
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prctl: arg0 == 15
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restart_syscall: 1
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epoll_create1: 1
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epoll_ctl: 1
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epoll_wait: 1
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timerfd_create: 1
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timerfd_gettime: 1
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timerfd_settime: 1
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