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Don't parse the packet, the data is already available in the conntrack
structure.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With large port numbers the helper_names buffer can overflow.
Noticed by Samir Bellabes <sbellabes@mandriva.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Patch from George G. Davis
As pointed out be Matthew Klahn <MKLAHN@motorola.com>, some sys_ipc()
call options require six args, e.g. SEMTIMEDOP. This patch adds an ARM sys_ipc_wrapper to save the sys_ipc() 'fifth' arg on the stack.
Signed-off-by: George G. Davis <gdavis@mvista.com>
arch/arm/kernel/calls.S | 2 +-
arch/arm/kernel/entry-common.S | 5 +++++
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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disable_timer_pin_1 needs IO-APIC, not just local APIC.
Signed-off-by: Cal Peake <cp@absolutedigital.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Fixes
> if [ -r System.map -a -x /sbin/depmod ]; then /sbin/depmod -ae -F
> System.map 2. 6.14-rc1; fi
> WARNING: /lib/modules/2.6.14-rc1/kernel/drivers/char/agp/amd64-agp.ko
> needs unknown symbol end_pfn
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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fix up the runqueue lock owner only if we truly did a context-switch
with the runqueue lock held. Impacts ia64, mips, sparc64 and arm.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Masked FPU exceptions should obviously not happen in the first place,
but if they do, ignoring them seems to be the right thing to do.
Although there is no documentation available for Cyrix MII, I did find
erratum F-7 for Winchip C6, "FPU instruction may result in spurious
exception under certain conditions" which seems to indicate that this
can happen.
That would also explain the behaviour Ondrej Zary reported on the MII.
Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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CONFIG_SECURITY=y and CONFIG_SYSFS=n results in the following compile
error:
<-- snip -->
...
LD vmlinux
security/built-in.o: In function `securityfs_init':
inode.c:(.init.text+0x1c2): undefined reference to `kernel_subsys'
make: *** [vmlinux] Error 1
<-- snip -->
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Chris Wright <chrisw@osdl.org>
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Once again, the simple_attr in libfs was actually sufficient - I'd
thought the __attribute__(format(printk(1,2))) was more mysterious than
it really is.
At last, here is the full patch to make seclvl use securityfs.
Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Chris Wright <chrisw@osdl.org>
--
seclvl.c | 228 +++++++++++++++++++--------------------------------------------
1 files changed, 70 insertions(+), 158 deletions(-)
Index: linux-2.6.13-rc1/security/seclvl.c
===================================================================
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Here's a small patch against 2.6.13-rc2 that adds securityfs, a virtual
fs that all LSMs can use instead of creating their own. The fs should
be mounted at /sys/kernel/security, and the fs creates that mount point.
This will make the LSB people happy that we aren't creating a new
/my_lsm_fs directory in the root for every different LSM.
It has changed a bit since the last version, thanks to comments from
Mike Waychison.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Chris Wright <chrisw@osdl.org>
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We shouldn't call audit_syscall_exit() unless it actually exists.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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When we leave sigsuspend() directly into a signal handler, we don't want
to go via the normal syscall exit path -- it'll corrupt r4 and r5 which
are supposed to be giving information to the signal handler, and it'll
give us one more single-step SIGTRAP than we need if single-stepping is
in operation.
However, we _should_ be calling audit_syscall_exit(), which would
normally get invoked in that patch. It's not wonderfully pretty, but I
suspect the best answer is just to call it directly...
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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The following patch against audit.81 prevents duplicate syscall rules in
a given filter list by walking the list on each rule add.
I also removed the unused struct audit_entry in audit.c and made the
static inlines in auditsc.c consistent.
Signed-off-by: Amy Griffis <amy.griffis@hp.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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It was showing up fairly high on profiles even when no rules were set.
Make sure the common path stays as fast as possible.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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... by generating serial numbers only if an audit context is actually
_used_, rather than doing so at syscall entry even when the context
isn't necessarily marked auditable.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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The tricks with atomic_t were bizarre. Just do it sensibly instead.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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We didn't rename it to audit_tgid after all. Except once... Doh.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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When we flush a pending syscall audit record due to audit_free(), we
might be doing that in the context of the idle thread. So use GFP_ATOMIC
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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and not just the one thread.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Fix the sparse warning "implicit cast to nocast type"
Signed-off-by: Victor Fusco <victor@cetuc.puc-rio.br>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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The pid in the audit context isn't always set up. Use tsk->pid when
checking whether it's auditd in audit_filter_syscall(), instead of
ctx->pid. Remove a band-aid which did the same elsewhere.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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We force a rate-limit on auditable events by making them wait for space
on the backlog queue. However, if auditd really is AWOL then this could
potentially bring the entire system to a halt, depending on the audit
rules in effect.
Firstly, make sure the wait time is honoured correctly -- it's the
maximum time the process should wait, rather than the time to wait
_each_ time round the loop. We were getting re-woken _each_ time a
packet was dequeued, and the timeout was being restarted each time.
Secondly, reset the wait time after audit_panic() is called. In general
this will be reset to zero, to allow progress to be made. If the system
is configured to _actually_ panic on audit_panic() then that will
already have happened; otherwise we know that audit records are being
lost anyway.
These two tunables can't be exposed via AUDIT_GET and AUDIT_SET because
those aren't particularly well-designed. It probably should have been
done by sysctls or sysfs anyway -- one for a later patch.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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audit_log() also takes an extra argument, although it's a vararg
function so the compiler didn't really notice.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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audit_log_start() seems to take 3 arguments, but its defined to take
only 2 when AUDIT is turned off.
security/selinux/avc.c:553:75: macro "audit_log_start" passed 3 arguments, but takes just 2
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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They aren't errors.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Don't look up the task by its pid and then use the syscall filtering
helper. Just implement our own filter helper which operates solely on
the information in the netlink_skb_parms.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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When the task refcounting was added to audit_filter_rules() it became
more of a problem that this function was violating the 'only one
return from each function' rule. In fixing it to use a variable to store
'ret' I stupidly neglected to actually change the 'return 1;' at the
end. This makes it not work very well.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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It's not used any more.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Add a gfp_mask to audit_log_start() and audit_log(), to reduce the
amount of GFP_ATOMIC allocation -- most of it doesn't need to be
GFP_ATOMIC. Also if the mask includes __GFP_WAIT, then wait up to
60 seconds for the auditd backlog to clear instead of immediately
abandoning the message.
The timeout should probably be made configurable, but for now it'll
suffice that it only happens if auditd is actually running.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Also exempt USER_AVC message from being discarded to preserve
existing behaviour for SE Linux.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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If we have enough rules to fill the netlink buffer space, it'll
deadlock because auditctl isn't ever actually going to read from the
socket until we return, and we aren't going to return until it
reads... so we spawn a kernel thread to spew out the list and then
exit.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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When LOOKUP_PARENT is used, the inode which results is not the inode
found at the pathname. Report the flags so that this doesn't generate
misleading audit records.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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We were only avoiding it on syscall exit before; now stop _everything_.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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