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[op/gsoc2014/smap+kpatch] change pmap_kenter_attr(...) #3

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opntr opened this issue Aug 8, 2014 · 2 comments
Closed

[op/gsoc2014/smap+kpatch] change pmap_kenter_attr(...) #3

opntr opened this issue Aug 8, 2014 · 2 comments
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opntr commented Aug 8, 2014

No description provided.

@opntr opntr added the bug label Aug 8, 2014
@opntr opntr self-assigned this Aug 8, 2014
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opntr commented Aug 8, 2014

pmap.h:void pmap_protect(pmap_t, vm_offset_t, vm_offset_t, vm_prot_t);

opntr added a commit that referenced this issue Aug 11, 2014
@opntr
PAX ASLR: fix mmap randomization which breaked by 3d154ea commit
18b26ef 
After 3d154ea commit the paxtest's
output are this:

PaXtest - Copyright(c) 2003,2004 by Peter Busser <peter@adamantix.org>
Released under the GNU Public Licence version 2 or later

Mode: kiddie
FreeBSD  11.0-CURRENT FreeBSD 11.0-CURRENT #3
d6b9ed4(op/hardened/current/aslr-devel)-dirty: Fri Aug  8 17:06:55
CEST 2014     op@pandora-d:/tmp/amd64-objdir/usr/data/source/git/opBSD/opBSD.git/sys/GENERIC
 amd64

Executable anonymous mapping             : Killed
Executable bss                           : Killed
Executable data                          : Killed
Executable heap                          : Killed
Executable stack                         : Killed
Executable anonymous mapping (mprotect)  : Vulnerable
Executable bss (mprotect)                : Vulnerable
Executable data (mprotect)               : Vulnerable
Executable heap (mprotect)               : Vulnerable
Executable shared library bss (mprotect) : Vulnerable
Executable shared library data (mprotect): Vulnerable
Executable stack (mprotect)              : Vulnerable
Anonymous mapping randomisation test     : No randomisation
Heap randomisation test (ET_EXEC)        : 2 bits (guessed)
Heap randomisation test (PIE)            : 12 bits (guessed)
Main executable randomisation (ET_EXEC)  : No randomisation
Main executable randomisation (PIE)      : 21 bits (guessed)
Shared library randomisation test        : No randomisation
Stack randomisation test (SEGMEXEC)      : 15 bits (guessed)
Stack randomisation test (PAGEEXEC)      : 16 bits (guessed)
Arg/env randomisation test (SEGMEXEC)    : 17 bits (guessed)
Arg/env randomisation test (PAGEEXEC)    : 17 bits (guessed)
Randomization under memory exhaustion @~0: No randomisation
Randomization under memory exhaustion @0 : No randomisation
Return to function (strcpy)              : paxtest: return address
contains a NULL byte.
Return to function (strcpy, PIE)         : paxtest: return address
contains a NULL byte.
Return to function (memcpy)              : Killed
Return to function (memcpy, PIE)         : Killed
Executable shared library bss            : Killed
Executable shared library data           : Killed
Writable text segments                   : Vulnerable

After partially revert the mentioned commit, the paxtest's output fixed:

FreeBSD pandora-d 10.0-STABLE FreeBSD 10.0-STABLE freebsd#72
6fd52c6(op/stable/10/opbsd-aslr): Sat Aug  9 02:33:44 CEST 2014     root@pandora-d:/usr/obj/usr/src/sys/OP-ASLR  amd64

Executable anonymous mapping             : Killed
Executable bss                           : Killed
Executable data                          : Killed
Executable heap                          : Killed
Executable stack                         : Killed
Executable anonymous mapping (mprotect)  : Vulnerable
Executable bss (mprotect)                : Vulnerable
Executable data (mprotect)               : Vulnerable
Executable heap (mprotect)               : Vulnerable
Executable shared library bss (mprotect) : Vulnerable
Executable shared library data (mprotect): Vulnerable
Executable stack (mprotect)              : Vulnerable
Anonymous mapping randomisation test     : 21 bits (guessed)
Heap randomisation test (ET_EXEC)        : 11 bits (guessed)
Heap randomisation test (PIE)            : 12 bits (guessed)
Main executable randomisation (ET_EXEC)  : No randomisation
Main executable randomisation (PIE)      : 21 bits (guessed)
Shared library randomisation test        : 21 bits (guessed)
Stack randomisation test (SEGMEXEC)      : 15 bits (guessed)
Stack randomisation test (PAGEEXEC)      : 16 bits (guessed)
Arg/env randomisation test (SEGMEXEC)    : 17 bits (guessed)
Arg/env randomisation test (PAGEEXEC)    : 16 bits (guessed)
Randomization under memory exhaustion @~0: 22 bits (guessed)
Randomization under memory exhaustion @0 : 21 bits (guessed)
Return to function (strcpy)              : paxtest: return address contains a NULL byte.
Return to function (strcpy, PIE)         : paxtest: return address contains a NULL byte.
Return to function (memcpy)              : Killed
Return to function (memcpy, PIE)         : Killed
Executable shared library bss            : Killed
Executable shared library data           : Killed
Writable text segments                   : Vulnerable

Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>
opntr added a commit that referenced this issue Aug 12, 2014
@opntr
PAX ASLR: fix mmap randomization which breaked by 3d154ea commit
4f994e2 
After 3d154ea commit the paxtest's
output are this:

PaXtest - Copyright(c) 2003,2004 by Peter Busser <peter@adamantix.org>
Released under the GNU Public Licence version 2 or later

Mode: kiddie
FreeBSD  11.0-CURRENT FreeBSD 11.0-CURRENT #3
d6b9ed4(op/hardened/current/aslr-devel)-dirty: Fri Aug  8 17:06:55
CEST 2014     op@pandora-d:/tmp/amd64-objdir/usr/data/source/git/opBSD/opBSD.git/sys/GENERIC
 amd64

Executable anonymous mapping             : Killed
Executable bss                           : Killed
Executable data                          : Killed
Executable heap                          : Killed
Executable stack                         : Killed
Executable anonymous mapping (mprotect)  : Vulnerable
Executable bss (mprotect)                : Vulnerable
Executable data (mprotect)               : Vulnerable
Executable heap (mprotect)               : Vulnerable
Executable shared library bss (mprotect) : Vulnerable
Executable shared library data (mprotect): Vulnerable
Executable stack (mprotect)              : Vulnerable
Anonymous mapping randomisation test     : No randomisation
Heap randomisation test (ET_EXEC)        : 2 bits (guessed)
Heap randomisation test (PIE)            : 12 bits (guessed)
Main executable randomisation (ET_EXEC)  : No randomisation
Main executable randomisation (PIE)      : 21 bits (guessed)
Shared library randomisation test        : No randomisation
Stack randomisation test (SEGMEXEC)      : 15 bits (guessed)
Stack randomisation test (PAGEEXEC)      : 16 bits (guessed)
Arg/env randomisation test (SEGMEXEC)    : 17 bits (guessed)
Arg/env randomisation test (PAGEEXEC)    : 17 bits (guessed)
Randomization under memory exhaustion @~0: No randomisation
Randomization under memory exhaustion @0 : No randomisation
Return to function (strcpy)              : paxtest: return address
contains a NULL byte.
Return to function (strcpy, PIE)         : paxtest: return address
contains a NULL byte.
Return to function (memcpy)              : Killed
Return to function (memcpy, PIE)         : Killed
Executable shared library bss            : Killed
Executable shared library data           : Killed
Writable text segments                   : Vulnerable

After partially revert the mentioned commit, the paxtest's output fixed:

FreeBSD pandora-d 10.0-STABLE FreeBSD 10.0-STABLE freebsd#72
6fd52c6(op/stable/10/opbsd-aslr): Sat Aug  9 02:33:44 CEST 2014     root@pandora-d:/usr/obj/usr/src/sys/OP-ASLR  amd64

Executable anonymous mapping             : Killed
Executable bss                           : Killed
Executable data                          : Killed
Executable heap                          : Killed
Executable stack                         : Killed
Executable anonymous mapping (mprotect)  : Vulnerable
Executable bss (mprotect)                : Vulnerable
Executable data (mprotect)               : Vulnerable
Executable heap (mprotect)               : Vulnerable
Executable shared library bss (mprotect) : Vulnerable
Executable shared library data (mprotect): Vulnerable
Executable stack (mprotect)              : Vulnerable
Anonymous mapping randomisation test     : 21 bits (guessed)
Heap randomisation test (ET_EXEC)        : 11 bits (guessed)
Heap randomisation test (PIE)            : 12 bits (guessed)
Main executable randomisation (ET_EXEC)  : No randomisation
Main executable randomisation (PIE)      : 21 bits (guessed)
Shared library randomisation test        : 21 bits (guessed)
Stack randomisation test (SEGMEXEC)      : 15 bits (guessed)
Stack randomisation test (PAGEEXEC)      : 16 bits (guessed)
Arg/env randomisation test (SEGMEXEC)    : 17 bits (guessed)
Arg/env randomisation test (PAGEEXEC)    : 16 bits (guessed)
Randomization under memory exhaustion @~0: 22 bits (guessed)
Randomization under memory exhaustion @0 : 21 bits (guessed)
Return to function (strcpy)              : paxtest: return address contains a NULL byte.
Return to function (strcpy, PIE)         : paxtest: return address contains a NULL byte.
Return to function (memcpy)              : Killed
Return to function (memcpy, PIE)         : Killed
Executable shared library bss            : Killed
Executable shared library data           : Killed
Writable text segments                   : Vulnerable

Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>
@opntr
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opntr commented Aug 12, 2014

git: f95314c
git: d3f8039

@opntr opntr closed this as completed Aug 12, 2014
opntr pushed a commit that referenced this issue Aug 23, 2014
Update to the current version of netmap.
3ab69a2 
Mostly bugfixes or features developed in the past 6 months,
so this is a 10.1 candidate.

Basically no user API changes (some bugfixes in sys/net/netmap_user.h).

In detail:

1. netmap support for virtio-net, including in netmap mode.
  Under bhyve and with a netmap backend [2] we reach over 1Mpps
  with standard APIs (e.g. libpcap), and 5-8 Mpps in netmap mode.

2. (kernel) add support for multiple memory allocators, so we can
  better partition physical and virtual interfaces giving access
  to separate users. The most visible effect is one additional
  argument to the various kernel functions to compute buffer
  addresses. All netmap-supported drivers are affected, but changes
  are mechanical and trivial

3. (kernel) simplify the prototype for *txsync() and *rxsync()
  driver methods. All netmap drivers affected, changes mostly mechanical.

4. add support for netmap-monitor ports. Think of it as a mirroring
  port on a physical switch: a netmap monitor port replicates traffic
  present on the main port. Restrictions apply. Drive carefully.

5. if_lem.c: support for various paravirtualization features,
  experimental and disabled by default.
  Most of these are described in our ANCS'13 paper [1].
  Paravirtualized support in netmap mode is new, and beats the
  numbers in the paper by a large factor (under qemu-kvm,
  we measured gues-host throughput up to 10-12 Mpps).

A lot of refactoring and additional documentation in the files
in sys/dev/netmap, but apart from #2 and #3 above, almost nothing
of this stuff is visible to other kernel parts.

Example programs in tools/tools/netmap have been updated with bugfixes
and to support more of the existing features.

This is meant to go into 10.1 so we plan an MFC before the Aug.22 deadline.

A lot of this code has been contributed by my colleagues at UNIPI,
including Giuseppe Lettieri, Vincenzo Maffione, Stefano Garzarella.

MFC after:	3 days.
opntr added a commit that referenced this issue Nov 1, 2014
@opntr
PAX ASLR: fix mmap randomization which breaked by 3d154ea commit
190c95d 
After 3d154ea commit the paxtest's
output are this:

PaXtest - Copyright(c) 2003,2004 by Peter Busser <peter@adamantix.org>
Released under the GNU Public Licence version 2 or later

Mode: kiddie
FreeBSD  11.0-CURRENT FreeBSD 11.0-CURRENT #3
d6b9ed4(op/hardened/current/aslr-devel)-dirty: Fri Aug  8 17:06:55
CEST 2014     op@pandora-d:/tmp/amd64-objdir/usr/data/source/git/opBSD/opBSD.git/sys/GENERIC
 amd64

Executable anonymous mapping             : Killed
Executable bss                           : Killed
Executable data                          : Killed
Executable heap                          : Killed
Executable stack                         : Killed
Executable anonymous mapping (mprotect)  : Vulnerable
Executable bss (mprotect)                : Vulnerable
Executable data (mprotect)               : Vulnerable
Executable heap (mprotect)               : Vulnerable
Executable shared library bss (mprotect) : Vulnerable
Executable shared library data (mprotect): Vulnerable
Executable stack (mprotect)              : Vulnerable
Anonymous mapping randomisation test     : No randomisation
Heap randomisation test (ET_EXEC)        : 2 bits (guessed)
Heap randomisation test (PIE)            : 12 bits (guessed)
Main executable randomisation (ET_EXEC)  : No randomisation
Main executable randomisation (PIE)      : 21 bits (guessed)
Shared library randomisation test        : No randomisation
Stack randomisation test (SEGMEXEC)      : 15 bits (guessed)
Stack randomisation test (PAGEEXEC)      : 16 bits (guessed)
Arg/env randomisation test (SEGMEXEC)    : 17 bits (guessed)
Arg/env randomisation test (PAGEEXEC)    : 17 bits (guessed)
Randomization under memory exhaustion @~0: No randomisation
Randomization under memory exhaustion @0 : No randomisation
Return to function (strcpy)              : paxtest: return address
contains a NULL byte.
Return to function (strcpy, PIE)         : paxtest: return address
contains a NULL byte.
Return to function (memcpy)              : Killed
Return to function (memcpy, PIE)         : Killed
Executable shared library bss            : Killed
Executable shared library data           : Killed
Writable text segments                   : Vulnerable

After partially revert the mentioned commit, the paxtest's output fixed:

FreeBSD pandora-d 10.0-STABLE FreeBSD 10.0-STABLE freebsd#72
6fd52c6(op/stable/10/opbsd-aslr): Sat Aug  9 02:33:44 CEST 2014     root@pandora-d:/usr/obj/usr/src/sys/OP-ASLR  amd64

Executable anonymous mapping             : Killed
Executable bss                           : Killed
Executable data                          : Killed
Executable heap                          : Killed
Executable stack                         : Killed
Executable anonymous mapping (mprotect)  : Vulnerable
Executable bss (mprotect)                : Vulnerable
Executable data (mprotect)               : Vulnerable
Executable heap (mprotect)               : Vulnerable
Executable shared library bss (mprotect) : Vulnerable
Executable shared library data (mprotect): Vulnerable
Executable stack (mprotect)              : Vulnerable
Anonymous mapping randomisation test     : 21 bits (guessed)
Heap randomisation test (ET_EXEC)        : 11 bits (guessed)
Heap randomisation test (PIE)            : 12 bits (guessed)
Main executable randomisation (ET_EXEC)  : No randomisation
Main executable randomisation (PIE)      : 21 bits (guessed)
Shared library randomisation test        : 21 bits (guessed)
Stack randomisation test (SEGMEXEC)      : 15 bits (guessed)
Stack randomisation test (PAGEEXEC)      : 16 bits (guessed)
Arg/env randomisation test (SEGMEXEC)    : 17 bits (guessed)
Arg/env randomisation test (PAGEEXEC)    : 16 bits (guessed)
Randomization under memory exhaustion @~0: 22 bits (guessed)
Randomization under memory exhaustion @0 : 21 bits (guessed)
Return to function (strcpy)              : paxtest: return address contains a NULL byte.
Return to function (strcpy, PIE)         : paxtest: return address contains a NULL byte.
Return to function (memcpy)              : Killed
Return to function (memcpy, PIE)         : Killed
Executable shared library bss            : Killed
Executable shared library data           : Killed
Writable text segments                   : Vulnerable

Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>
opntr added a commit that referenced this issue Nov 1, 2014
@opntr
HBSD: verbose HBSD/PaX logs may contains sensitive informations, change
98ebdfb 
the log files permissions

github-issue: #3
Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>
opntr added a commit that referenced this issue Jun 28, 2015
@opntr
HBSD: verbose HBSD/PaX logs may contains sensitive informations, change
5f915ed 
the log files permissions

github-issue: #3
Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>
(cherry picked from commit 98ebdfb)
opntr pushed a commit that referenced this issue Mar 13, 2016
@ngie-eign
MFC r295341,r295345:
9400610 
r295341:

Require /bin/getfacl and /bin/setfacl when running the acl tests

For cases where these utilities aren't installed, the tests would fail today
in a non-intuitive manner on sub-testcase #3 in each of the test scripts

r295345:

Use basenames for getfacl, setfacl, and zpool to work around the
fact that Jenkins hardcodes image sizes to 2GB with the FreeBSD_HEAD
job

This is to stop the unnecessary failure emails because we've gone
over the 2GB limit
opntr added a commit that referenced this issue Aug 19, 2016
@opntr
HBSD MFC: Fix cleanup race between unp_dispose and unp_gc - by cem@
e19f452 
unp_dispose and unp_gc could race to teardown the same mbuf chains, which
can lead to dereferencing freed filedesc pointers.

This patch adds an IGNORE_RIGHTS flag on unpcbs marking the unpcb's RIGHTS
as invalid/freed. The flag is protected by UNP_LIST_LOCK.

To serialize against unp_gc, unp_dispose needs the socket object. Change the
dom_dispose() KPI to take a socket object instead of an mbuf chain directly.

PR:		194264
Differential Revision:	https://reviews.freebsd.org/D3044
Reviewed by:	mjg (earlier version)
Approved by:	markj (mentor)
Obtained from:	mjg
MFC after:	1 month
Sponsored by:	EMC / Isilon Storage Division

This commit was never MFCd to 10-STABLE, and the issue is still
reproducible in 2016, with the linked test program from
FreeBSD's phabricator.

--8<--
Unread portion of the kernel message buffer:
[206]
[206]
[206] Fatal trap 9: general protection fault while in kernel mode
[206] cpuid = 1; apic id = 01
[206] instruction pointer       = 0x20:0xffffffff809e10e8
[206] stack pointer             = 0x28:0xfffffe002bd96960
[206] frame pointer             = 0x28:0xfffffe002bd969e0
[206] code segment              = base 0x0, limit 0xfffff, type 0x1b
[206]                   = DPL 0, pres 1, long 1, def32 0, gran 1
[206] processor eflags  = interrupt enabled, resume, IOPL = 0
[206] current process           = 0 (thread taskq)
[206] trap number               = 9
[206] panic: general protection fault
[206] cpuid = 1
[206] KDB: stack backtrace:
[206] #0 0xffffffff8098dc90 at kdb_backtrace+0x60
[206] #1 0xffffffff80953ed6 at vpanic+0x126
[206] #2 0xffffffff80953f63 at panic+0x43
[206] #3 0xffffffff80d6b2cb at trap_fatal+0x36b
[206] #4 0xffffffff80d6af49 at trap+0x839
[206] #5 0xffffffff80d4f3ec at calltrap+0x8
[206] #6 0xffffffff809a2940 at taskqueue_run_locked+0xf0
[206] #7 0xffffffff809a32ab at taskqueue_thread_loop+0x9b
[206] #8 0xffffffff8091c144 at fork_exit+0x84
[206] freebsd#9 0xffffffff80d4f92e at fork_trampoline+0xe
[206] Uptime: 3m26s
[206] Dumping 73 out of 487 MB:..22%..44%..66%..88%
--8<--

(cherry picked from commit 576619e)
Signed-off-by: Oliver Pinter <oliver.pinter@hardenedbsd.org>
CC: Bryan Drewery <bdrewery@freebsd.org>
CC: Mark Johnston <markj@freebsd.org>
opntr added a commit that referenced this issue Aug 19, 2016
@opntr
HBSD MFC: Handle races with listening socket close when connecting a …
d36bc76 
…unix socket. - by markj@

If the listening socket is closed while sonewconn() is executing, the
nascent child socket is aborted, which results in recursion on the
unp_link lock when the child's pru_detach method is invoked. Fix this
by using a flag to mark such sockets, and skip a part of the socket's
teardown during detach.

Reported by:	Raviprakash Darbha <rdarbha@juniper.net>
Tested by:	pho
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D7398

--8<--
[128] panic: __rw_wlock_hard: recursing but non-recursive rw unp_link_rwlock @ /usr/src/sys/kern/uipc_usrreq.c:654
[128]
[128] cpuid = 1
[128] KDB: stack backtrace:
[128] #0 0xffffffff8098dc90 at kdb_backtrace+0x60
[128] #1 0xffffffff80953ed6 at vpanic+0x126
[128] #2 0xffffffff80953da9 at kassert_panic+0x139
[128] #3 0xffffffff80951454 at __rw_wlock_hard+0x394
[128] #4 0xffffffff80951072 at _rw_wlock_cookie+0x92
[128] #5 0xffffffff809de636 at uipc_detach+0x36
[128] #6 0xffffffff809d217a at sofree+0x1da
[128] #7 0xffffffff809d1da4 at sonewconn+0x324
[128] #8 0xffffffff809e0496 at unp_connectat+0x326
[128] freebsd#9 0xffffffff809de4ac at uipc_connect+0x4c
[128] freebsd#10 0xffffffff809d8cf6 at kern_connectat+0x126
[128] freebsd#11 0xffffffff809d8b87 at sys_connect+0x77
[128] freebsd#12 0xffffffff80d6bab4 at amd64_syscall+0x2c4
[128] freebsd#13 0xffffffff80d4f6db at Xfast_syscall+0xfb
[128] Uptime: 2m8s
[128] Dumping 73 out of 487 MB:..22%..44%..66%..88%
--8<--

(cherry picked from commit cfea0ef)
Signed-off-by: Oliver Pinter <oliver.pinter@hardenedbsd.org>
opntr pushed a commit that referenced this issue Sep 22, 2016
@mmatuska @opntr
HBSD MFC: Sync libarchive with vendor including important security fi…
19d12fa 
…xes. (dfb2179)

MFV r305816:
Sync libarchive with vendor including important security fixes.

Issues fixed (FreeBSD):
PR freebsd#778: ACL error handling
Issue freebsd#745: Symlink check prefix optimization is too aggressive
Issue freebsd#746: Hard links with data can evade sandboxing restrictions

This update fixes the vulnerability #3 and vulnerability #4 as reported in
"non-cryptanalytic attacks against FreeBSD update components".
https://gist.github.com/anonymous/e48209b03f1dd9625a992717e7b89c4f

Fix for vulnerability #2 has already been merged in r304989.

MFC after:	1 week
Security: http://gist.github.com/anonymous/e48209b03f1dd9625a992717e7b89c4f

(cherry picked from commit dfb2179)
Signed-off-by: Oliver Pinter <oliver.pinter@hardenedbsd.org>
opntr pushed a commit that referenced this issue Oct 3, 2016
@mmatuska
MFC r305819:
50f36ba 
Sync libarchive with vendor including important security fixes.

Issues fixed (FreeBSD):
PR freebsd#778: ACL error handling
Issue freebsd#745: Symlink check prefix optimization is too aggressive
Issue freebsd#746: Hard links with data can evade sandboxing restrictions

This update fixes the vulnerability #3 and vulnerability #4 as reported in
"non-cryptanalytic attacks against FreeBSD update components".
https://gist.github.com/anonymous/e48209b03f1dd9625a992717e7b89c4f

Fix for vulnerability #2 has already been merged in r305192.

Security: http://gist.github.com/anonymous/e48209b03f1dd9625a992717e7b89c4f
opntr added a commit that referenced this issue Dec 11, 2016
@opntr
HBSD MFC: ANSIfy ffs_subr.c
566a1f6 
Also renumber license clause to avoid skipping #3

(cherry picked from commit 242aa65)
Author:    emaste <emaste@FreeBSD.org>
Signed-off-by: Oliver Pinter <oliver.pinter@hardenedbsd.org>
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