Introduce several LSM hooks for the syscalls that will allow the
userspace to access to eBPF object such as eBPF programs and eBPF maps.
The security check is aimed to enforce a per object security protection
for eBPF object so only processes with the right priviliges can
read/write to a specific map or use a specific eBPF program. Besides
that, a general security hook is added before the multiplexer of bpf
syscall to check the cmd and the attribute used for the command. The
actual security module can decide which command need to be checked and
how the cmd should be checked.
Signed-off-by: Chenbo Feng <fengc@google.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Two related tests are added into bpf selftest to test read only map and
write only map. The tests verified the read only and write only flags
are working on hash maps.
Signed-off-by: Chenbo Feng <fengc@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Introduce the map read/write flags to the eBPF syscalls that returns the
map fd. The flags is used to set up the file mode when construct a new
file descriptor for bpf maps. To not break the backward capability, the
f_flags is set to O_RDWR if the flag passed by syscall is 0. Otherwise
it should be O_RDONLY or O_WRONLY. When the userspace want to modify or
read the map content, it will check the file mode to see if it is
allowed to make the change.
Signed-off-by: Chenbo Feng <fengc@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
All of the notifier data (fib_info, tos, type and table id) are
contained in the fib_alias. Pass it to the notifier instead of
each data separately shortening the argument list by 3.
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
New socket option TCP_FASTOPEN_KEY to allow different keys per
listener. The listener by default uses the global key until the
socket option is set. The key is a 16 bytes long binary data. This
option has no effect on regular non-listener TCP sockets.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Christoph Paasch <cpaasch@apple.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern says:
====================
mlxsw: spectrum_router: Add extack messages for RIF and VRF overflow
Currently, exceeding the number of VRF instances or the number of router
interfaces either fails with a non-intuitive EBUSY:
$ ip li set swp1s1.6 vrf vrf-1s1-6 up
RTNETLINK answers: Device or resource busy
or fails silently (IPv6) since the checks are done in a work queue. This
set adds support for the address validator notifier to spectrum which
allows ext-ack based messages to be returned on failure.
To make that happen the IPv6 version needs to be converted from atomic
to blocking (patch 2), and then support for extack needs to be added
to the notifier (patch 3). Patch 1 reworks the locking in ipv6_add_addr
to work better in the atomic and non-atomic code paths. Patches 4 and 5
add the validator notifier to spectrum and then plumb the extack argument
through spectrum_router.
With this set, VRF overflows fail with:
$ ip li set swp1s1.6 vrf vrf-1s1-6 up
Error: spectrum: Exceeded number of supported VRF.
and RIF overflows fail with:
$ ip addr add dev swp1s2.191 10.12.191.1/24
Error: spectrum: Exceeded number of supported router interfaces.
v2 -> v3
- fix surround context of patch 4 which was altered by c30f5d012e
v1 -> v2
- fix error path in ipv6_add_addr: reset rt to NULL (Ido comment) and
add in6_dev_put on ifa once the hold has been done
RFC -> v1
- addressed various comments from Ido
- refactored ipv6_add_addr to allow ifa's to be allocated with
GFP_KERNEL as requested by DaveM
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add extack argument down to mlxsw_sp_rif_create and mlxsw_sp_vr_create
to set an error message on RIF or VR overflow. Now on overflow of
either resource the user gets an informative message as opposed to
failing with EBUSY.
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for inetaddr_validator and inet6addr_validator. The
notifiers provide a means for validating ipv4 and ipv6 addresses
before the addresses are installed and on failure the error
is propagated back to the user.
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add extack to in_validator_info and in6_validator_info. Update the one
user of each, ipvlan, to return an error message for failures.
Only manual configuration of an address is plumbed in the IPv6 code path.
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
inet6addr_validator chain was added by commit 3ad7d2468f ("Ipvlan
should return an error when an address is already in use") to allow
address validation before changes are committed and to be able to
fail the address change with an error back to the user. The address
validation is not done for addresses received from router
advertisements.
Handling RAs in softirq context is the only reason for the notifier
chain to be atomic versus blocking. Since the only current user, ipvlan,
of the validator chain ignores softirq context, the notifier can be made
blocking and simply not invoked for softirq path.
The blocking option is needed by spectrum for example to validate
resources for an adding an address to an interface.
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ipv6_add_addr is called in process context with rtnl lock held
(e.g., manual config of an address) or during softirq processing
(e.g., autoconf and address from a router advertisement).
Currently, ipv6_add_addr calls rcu_read_lock_bh shortly after entry
and does not call unlock until exit, minus the call around the address
validator notifier. Similarly, addrconf_hash_lock is taken after the
validator notifier and held until exit. This forces the allocation of
inet6_ifaddr to always be atomic.
Refactor ipv6_add_addr as follows:
1. add an input boolean to discriminate the call path (process context
or softirq). This new flag controls whether the alloc can be done
with GFP_KERNEL or GFP_ATOMIC.
2. Move the rcu_read_lock_bh and unlock calls only around functions that
do rcu updates.
3. Remove the in6_dev_hold and put added by 3ad7d2468f ("Ipvlan should
return an error when an address is already in use."). This was done
presumably because rcu_read_unlock_bh needs to be called before calling
the validator. Since rcu_read_lock is not needed before the validator
runs revert the hold and put added by 3ad7d2468f and only do the
hold when setting ifp->idev.
4. move duplicate address check and insertion of new address in the global
address hash into a helper. The helper is called after an ifa is
allocated and filled in.
This allows the ifa for manually configured addresses to be done with
GFP_KERNEL and reduces the overall amount of time with rcu_read_lock held
and hash table spinlock held.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann says:
====================
s390/net: updates 2017-10-18
please apply some additional robustness fixes and cleanups for 4.15.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
A few lines down, qeth_prepare_control_data() makes further changes to
the control cmd buffer, and then also writes a trace entry for it.
So the first entry just pollutes the trace file with intermediate data,
drop it.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Switch to napi_complete_done(), and thus enable delayed GRO flushing.
The timeout is configured via /sys/class/net/<if>/gro_flush_timeout.
Default timeout is 0, so no change in behaviour.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current code bails out when two subsequent buffer elements hold
insufficient data to contain a qeth_hdr packet descriptor.
This seems reasonable, but it would be legal for quirky hardware to
leave a few elements empty and then present packets in a subsequent
element. These packets would currently be dropped.
So make sure to check all buffer elements, until we hit the LAST_ENTRY
indication.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move the allocation of SG skbs into the main path. This allows for
a little code sharing, and handling ENOMEM from within one place.
As side effect, L2 SG skbs now get the proper amount of additional
headroom (read: zero) instead of the hard-coded ETH_HLEN.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace the open-coded skb_add_rx_frag(), and use a fall-through
to remove some duplicated code.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of silently discarding VLAN registration requests on OSM,
just indicate that this card type doesn't support VLAN.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There's no reason why l2_set_mac_address() should ever be called for
a netdevice that's not owned by qeth. It's certainly not required for
VLAN devices, which have their own netdev_ops.
Also:
1) we don't do such validation for any of the other netdev_ops routines.
2) the code in question clearly has never been actually exercised;
it's broken. After determining that the device is not owned
by qeth, it would still use dev->ml_priv to write a qeth trace entry.
Remove the check, and its helper that walked the global card list.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1. Drop the support for Token Ring,
2. use the ETH_DATA_LEN macro for the default L2 MTU,
3. handle OSM via the default case (as OSM is L2-only), and
4. document why the L3 MTU is reduced.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the allocation of the addr buffer fails, we need to free
our refcount on the inetdevice before returning.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The sysfs enabled value is a boolean, so kstrtobool() is a better fit
for parsing the input string since it does the range checking for us.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
With commit "s390/ccwgroup: tie a ccwgroup driver to its ccw driver",
the ccwgroup core now ensures that a qeth group device only consists of
ccw devices which are supported by qeth. Therefore remove qeth's
internal device matching, and use .driver_info to determine the card
type.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use setup_timer function instead of initializing timer with the
function and data fields.
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When recovering a device, qeth needs to re-run the IPA commands that
enable all previously active HW features.
Instead of duplicating qeth_set_features(), let netdev_update_features()
recover the missing HW features from dev->wanted_features.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently the netdevice field is not set and the egdev instance
is not functional, fix that.
Fixes: 3f55bdda8df ('net: sched: introduce per-egress action device callbacks')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rahul Lakkireddy says:
====================
cxgb4: enable more tc flower offload matches and actions
This patch series enable more matches and actions for TC Flower
Offload support on Chelsio adapters.
Patch 1 enables matching on IP TOS.
Patch 2 enables matching on VLAN TCI.
Patch 3 adds support for action PASS.
Patch 4 adds support for ETH-DMAC rewrite via TC-PEDIT action. Also,
adds a check to assert that vlan/eth-dmac rewrite actions are valid
only in combination with action egress redirect.
Patch 5 introduces SMT ops for adding/removing entries from SMAC Table
in HW in preparation for patch 6.
Patch 6 adds support for ETH-SMAC rewrite via TC-PEDIT action.
Patch 7 introduces fw_filter2_wr to support L3/L4 header rewrites
in preparation for patch 8.
Patch 8 adds support for rewrite on L3/L4 header fields via TC-PEDIT
action. Supported fields for rewrite are:
IPv4 src/dst address, IPv6 src/dst address, TCP/UDP sport/dport.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Adds support to rewrite L3/L4 fields via TC-PEDIT action.
Supported fields for rewrite are:
IPv4 src/dst address, IPv6 src/dst address, TCP/UDP sport/dport.
Also, process match fields first and then process the action items.
Refactor pedit action validation to separate function to avoid
excessive code indentation.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Update driver to use new fw_filter2_wr in order to support rewrite of
L3/L4 header fields via filters. Query FW_PARAMS_PARAM_DEV_FILTER2_WR
to check whether FW supports this new wr.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adds support for ETH-SMAC rewrite via TC-PEDIT action.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Introduce SMT operations for allocating/removing entries from
SMAC table. Make TCAM filters use the SMT ops whenever SMAC rewrite
is required.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for ETH-DMAC Rewrite via TC-PEDIT action. Also, add
check to assert that vlan/eth-dmac rewrite actions are valid only
in combination with action egress redirect.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for tc flower action PASS.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for matching on vlan tci. Construct vlan tci match param
based on vlan-id and vlan-pcp values supplied by tc.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for matching on IP TOS. Also check on ethtype value
to be either IPv4 or IPv6.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
386fd5da40 ("tcp: Check daddr_cache before use in tracepoint") was the
second version of the tracepoint fixup patch. This patch is the delta
between v2 and v3. Specifically, remove the use of inet6_sk and check
sk_family as requested by Eric and add IS_ENABLED(CONFIG_IPV6) around
the use of sk_v6_rcv_saddr and sk_v6_daddr as done in sock_common (noted
by Cong).
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Tested-by: Song Liu <songliubraving@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Two things:
1) Update examples to show usage of metric
2) Discuss reasoning for using such a high metric.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend says:
====================
sockmap fixes for net
The following implements a set of fixes for sockmap and changes the
API slightly in a few places to reduce preempt_disable/enable scope.
We do this here in net because it requires an API change and this
avoids getting stuck with legacy API going forward.
The short description:
Access to skb mark is removed, it is problematic when we add
features in the future because mark is a union and used by the
TCP/socket code internally. We don't want to expose this to the
BPF programs or let programs change the values.
The other change is caching metadata in the skb itself between
when the BPF program returns a redirect code and the core code
implements the redirect. This avoids having per cpu metadata.
Finally, tighten restriction on using sockmap to CAP_NET_ADMIN and
only SOCK_STREAM sockets.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Devmap is used with XDP which requires CAP_NET_ADMIN so lets also
make CAP_NET_ADMIN required to use the map.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Restrict sockmap to CAP_NET_ADMIN.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The skb->mark field is a union with reserved_tailroom which is used
in the TCP code paths from stream memory allocation. Allowing SK_SKB
programs to set this field creates a conflict with future code
optimizations, such as "gifting" the skb to the egress path instead
of creating a new skb and doing a memcpy.
Because we do not have a released version of SK_SKB yet lets just
remove it for now. A more appropriate scratch pad to use at the
socket layer is dev_scratch, but lets add that in future kernels
when needed.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
SK_SKB BPF programs are run from the socket/tcp context but early in
the stack before much of the TCP metadata is needed in tcp_skb_cb. So
we can use some unused fields to place BPF metadata needed for SK_SKB
programs when implementing the redirect function.
This allows us to drop the preempt disable logic. It does however
require an API change so sk_redirect_map() has been updated to
additionally provide ctx_ptr to skb. Note, we do however continue to
disable/enable preemption around actual BPF program running to account
for map updates.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Only TCP sockets have been tested and at the moment the state change
callback only handles TCP sockets. This adds a check to ensure that
sockets actually being added are TCP sockets.
For net-next we can consider UDP support.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now sctp processes icmp redirect packet in sctp_icmp_redirect where
it calls sctp_transport_dst_check in which tp->dst can be released.
The problem is before calling sctp_transport_dst_check, it doesn't
check sock_owned_by_user, which means tp->dst could be freed while
a process is accessing it with owning the socket.
An use-after-free issue could be triggered by this.
This patch is to fix it by checking sock_owned_by_user before calling
sctp_transport_dst_check in sctp_icmp_redirect, so that it would not
release tp->dst if users still hold sock lock.
Besides, the same issue fixed in commit 45caeaa5ac ("dccp/tcp: fix
routing redirect race") on sctp also needs this check.
Fixes: 55be7a9c60 ("ipv4: Add redirect support to all protocol icmp error handlers")
Reported-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'for-linus-4.14c-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fix from Juergen Gross:
"A fix for the Xen pv network drivers (frontend and backend) avoiding
the network connection to become unusable due to an illegal MTU"
* tag 'for-linus-4.14c-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen-netfront, xen-netback: Use correct minimum MTU values
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Merge tag 'drm-fixes-for-v4.14-rc6' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Standard fixes pull for rc6: one regression fix for amdgpu, a bunch of
nouveau fixes that I'd missed a pull req for from Ben last week, some
exynos regression fixes, and a few fixes for i915"
* tag 'drm-fixes-for-v4.14-rc6' of git://people.freedesktop.org/~airlied/linux:
drm/nouveau/fbcon: fix oops without fbdev emulation
Revert "drm/amdgpu: discard commands of killed processes"
drm/i915: Use a mask when applying WaProgramL3SqcReg1Default
drm/i915: Report -EFAULT before pwrite fast path into shmemfs
drm/i915/cnl: Fix PLL initialization for HDMI.
drm/i915/cnl: Fix PLL mapping.
drm/i915: Use bdw_ddi_translations_fdi for Broadwell
drm/i915: Fix eviction when the GGTT is idle but full
drm/i915/gvt: Fix GPU hang after reusing vGPU instance across different guest OS
drm/exynos: Clear drvdata after component unbind
drm/exynos: Fix potential NULL pointer dereference in suspend/resume paths
drm/nouveau/kms/nv50: fix oops during DP IRQ handling on non-MST boards
drm/nouveau/bsp/g92: disable by default
drm/nouveau/mmu: flush tlbs before deleting page tables
Pull i2c fixes from Wolfram Sang:
"A couple of bugfixes for I2C drivers.
Because the changes for the piix4 driver are larger than usual, the
patches have been in linux-next for more than a week with no reports
coming in. The rest is usual stuff"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: omap: Fix error handling for clk_get()
i2c: piix4: Disable completely the IMC during SMBUS_BLOCK_DATA
i2c: piix4: Fix SMBus port selection for AMD Family 17h chips
i2c: imx: fix misleading bus recovery debug message
i2c: imx: use IRQF_SHARED mode to request IRQ
i2c: ismt: Separate I2C block read from SMBus block read
Pull key handling fixes from James Morris:
"This includes a fix for the capabilities code from Colin King, and a
set of further fixes for the keys subsystem. From David:
- Fix a bunch of places where kernel drivers may access revoked
user-type keys and don't do it correctly.
- Fix some ecryptfs bits.
- Fix big_key to require CONFIG_CRYPTO.
- Fix a couple of bugs in the asymmetric key type.
- Fix a race between updating and finding negative keys.
- Prevent add_key() from updating uninstantiated keys.
- Make loading of key flags and expiry time atomic when not holding
locks"
* 'fixes-v4.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
commoncap: move assignment of fs_ns to avoid null pointer dereference
pkcs7: Prevent NULL pointer dereference, since sinfo is not always set.
KEYS: load key flags and expiry time atomically in proc_keys_show()
KEYS: Load key expiry time atomically in keyring_search_iterator()
KEYS: load key flags and expiry time atomically in key_validate()
KEYS: don't let add_key() update an uninstantiated key
KEYS: Fix race between updating and finding a negative key
KEYS: checking the input id parameters before finding asymmetric key
KEYS: Fix the wrong index when checking the existence of second id
security/keys: BIG_KEY requires CONFIG_CRYPTO
ecryptfs: fix dereference of NULL user_key_payload
fscrypt: fix dereference of NULL user_key_payload
lib/digsig: fix dereference of NULL user_key_payload
FS-Cache: fix dereference of NULL user_key_payload
KEYS: encrypted: fix dereference of NULL user_key_payload
Chenbo Feng