This driver requires regmap or the compile fails:
drivers/phy/ti/phy-gmii-sel.c:43:27: error: array type has incomplete element type ‘struct reg_field’
const struct reg_field (*regfields)[PHY_GMII_SEL_LAST];
Add it to kconfig.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When handling DNAT'ed packets on a bridge device, the neighbour cache entry
from lookup was used without checking its state. It means that a cache entry
in the NUD_STALE state will be used directly instead of entering the NUD_DELAY
state to confirm the reachability of the neighbor.
This problem becomes worse after commit 2724680bce ("neigh: Keep neighbour
cache entries if number of them is small enough."), since all neighbour cache
entries in the NUD_STALE state will be kept in the neighbour table as long as
the number of cache entries does not exceed the value specified in gc_thresh1.
This commit validates the state of a neighbour cache entry before using
the entry.
Signed-off-by: JianJhen Chen <kchen@synology.com>
Reviewed-by: JinLin Chen <jlchen@synology.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is a memory leak in case genlmsg_put fails.
Fix this by freeing *args* before return.
Addresses-Coverity-ID: 1476406 ("Resource leak")
Fixes: 46273cf7e0 ("tipc: fix a missing check of genlmsg_put")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This function is unreadable enough without indenting mismatches
and unnecessary line breaks.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Avoid log spam caused by trying to read counters from the chip whilst
it is in a PCI power-save state.
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=107421
Fixes: 1ef7286e7f ("r8169: Dereference MMIO address immediately before use")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Muyu Yu provided a POC where user root with CAP_NET_ADMIN can create a CAN
frame modification rule that makes the data length code a higher value than
the available CAN frame data size. In combination with a configured checksum
calculation where the result is stored relatively to the end of the data
(e.g. cgw_csum_xor_rel) the tail of the skb (e.g. frag_list pointer in
skb_shared_info) can be rewritten which finally can cause a system crash.
Michael Kubecek suggested to drop frames that have a DLC exceeding the
available space after the modification process and provided a patch that can
handle CAN FD frames too. Within this patch we also limit the length for the
checksum calculations to the maximum of Classic CAN data length (8).
CAN frames that are dropped by these additional checks are counted with the
CGW_DELETED counter which indicates misconfigurations in can-gw rules.
This fixes CVE-2019-3701.
Reported-by: Muyu Yu <ieatmuttonchuan@gmail.com>
Reported-by: Marcus Meissner <meissner@suse.de>
Suggested-by: Michal Kubecek <mkubecek@suse.cz>
Tested-by: Muyu Yu <ieatmuttonchuan@gmail.com>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: linux-stable <stable@vger.kernel.org> # >= v3.2
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
pci_{,un}map_sg are deprecated and replaced by dma_{,un}map_sg. This is
especially relevant since the rest of the driver uses the DMA API. Fix
the driver to use the replacement APIs.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch solves a crash at the time of mlx4 driver unload or system
shutdown. The crash occurs because dma_alloc_coherent() returns one
value in mlx4_alloc_icm_coherent(), but a different value is passed to
dma_free_coherent() in mlx4_free_icm_coherent(). In turn this is because
when allocated, that pointer is passed to sg_set_buf() to record it,
then when freed it is re-calculated by calling
lowmem_page_address(sg_page()) which returns a different value. Solve
this by recording the value that dma_alloc_coherent() returns, and
passing this to dma_free_coherent().
This patch is roughly equivalent to commit 378efe798e ("RDMA/hns: Get
rid of page operation after dma_alloc_coherent").
Based-on-code-from: Christoph Hellwig <hch@lst.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
I realized the last patch calls dev_get_by_index_rcu in a branch not
holding the rcu lock. Add the calls to rcu_read_lock and rcu_read_unlock.
Fixes: ec90ad3349 ("ipv6: Consider sk_bound_dev_if when binding a socket to a v4 mapped address")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Similar to c5ee066333 ("ipv6: Consider sk_bound_dev_if when binding a
socket to an address"), binding a socket to v4 mapped addresses needs to
consider if the socket is bound to a device.
This problem also exists from the beginning of git history.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The new ability added to the driver to use mii_bus to handle MII related
ioctls is causing compile issues when the driver is compiled into the
kernel (i.e. not a module).
The problem was in selecting MDIO_DEVICE instead of the preferred PHYLIB
Kconfig option. The reason being that MDIO_DEVICE had a dependency on
PHYLIB and would be compiled as a module when PHYLIB was a module, no
matter whether ixgbe was compiled into the kernel.
CC: Dave Jones <davej@codemonkey.org.uk>
CC: Steve Douthit <stephend@silicom-usa.com>
CC: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Reviewed-by: Stephen Douthit <stephend@silicom-usa.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
syzbot was able to crash one host with the following stack trace :
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8625 Comm: syz-executor4 Not tainted 4.20.0+ #8
RIP: 0010:dev_net include/linux/netdevice.h:2169 [inline]
RIP: 0010:icmp6_send+0x116/0x2d30 net/ipv6/icmp.c:426
icmpv6_send
smack_socket_sock_rcv_skb
security_sock_rcv_skb
sk_filter_trim_cap
__sk_receive_skb
dccp_v6_do_rcv
release_sock
This is because a RX packet found socket owned by user and
was stored into socket backlog. Before leaving RCU protected section,
skb->dev was cleared in __sk_receive_skb(). When socket backlog
was finally handled at release_sock() time, skb was fed to
smack_socket_sock_rcv_skb() then icmp6_send()
We could fix the bug in smack_socket_sock_rcv_skb(), or simply
make icmp6_send() more robust against such possibility.
In the future we might provide to icmp6_send() the net pointer
instead of infering it.
Fixes: d66a8acbda ("Smack: Inform peer that IPv6 traffic has been blocked")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Piotr Sawicki <p.sawicki2@partner.samsung.com>
Cc: Casey Schaufler <casey@schaufler-ca.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit ade446403b ("net: ipv4: do not handle duplicate fragments as
overlapping") changed IPv4 defragmentation so that duplicate fragments,
as well as _some_ fragments completely covered by previously delivered
fragments, do not lead to the whole frag queue being discarded. This
makes the existing ip_defrag selftest flaky.
This patch
* makes sure that negative IPv4 defrag tests generate truly overlapping
fragments that trigger defrag queue drops;
* tests that duplicate IPv4 fragments do not trigger defrag queue drops;
* makes a couple of minor tweaks to the test aimed at increasing its code
coverage and reduce flakiness.
Signed-off-by: Peter Oskolkov <posk@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds MTU default value to qmap network interface in
order to avoid "RTNETLINK answers: No buffer space available"
error when setting an ipv6 address.
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Huazhong Tan says:
====================
net: hns: Bugfixes for HNS driver
This patchset includes bugfixes for the HNS ethernet controller driver.
Every patch is independent.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 308c6cafde ("net: hns: All ports can not work when insmod hns ko
after rmmod.") add phy_stop in hns_nic_init_phy(), In the branch of "net",
this method is effective, but in the branch of "net-next", it will cause
a WARNING when hns modules loaded, reference to commit 2b3e88ea65 ("net:
phy: improve phy state checking"):
[10.092168] ------------[ cut here ]------------
[10.092171] called from state READY
[10.092189] WARNING: CPU: 4 PID: 1 at ../drivers/net/phy/phy.c:854
phy_stop+0x90/0xb0
[10.092192] Modules linked in:
[10.092197] CPU: 4 PID:1 Comm:swapper/0 Not tainted 4.20.0-rc7-next-20181220 #1
[10.092200] Hardware name: Huawei TaiShan 2280 /D05, BIOS Hisilicon D05 UEFI
16.12 Release 05/15/2017
[10.092202] pstate: 60000005 (nZCv daif -PAN -UAO)
[10.092205] pc : phy_stop+0x90/0xb0
[10.092208] lr : phy_stop+0x90/0xb0
[10.092209] sp : ffff00001159ba90
[10.092212] x29: ffff00001159ba90 x28: 0000000000000007
[10.092215] x27: ffff000011180068 x26: ffff0000110a5620
[10.092218] x25: ffff0000113b6000 x24: ffff842f96dac000
[10.092221] x23: 0000000000000000 x22: 0000000000000000
[10.092223] x21: ffff841fb8425e18 x20: ffff801fb3a56438
[10.092226] x19: ffff801fb3a56000 x18: ffffffffffffffff
[10.092228] x17: 0000000000000000 x16: 0000000000000000
[10.092231] x15: ffff00001122d6c8 x14: ffff00009159b7b7
[10.092234] x13: ffff00001159b7c5 x12: ffff000011245000
[10.092236] x11: 0000000005f5e0ff x10: ffff00001159b750
[10.092239] x9 : 00000000ffffffd0 x8 : 0000000000000465
[10.092242] x7 : ffff0000112457f8 x6 : ffff0000113bd7ce
[10.092245] x5 : 0000000000000000 x4 : 0000000000000000
[10.092247] x3 : 00000000ffffffff x2 : ffff000011245828
[10.092250] x1 : 4b5860bd05871300 x0 : 0000000000000000
[10.092253] Call trace:
[10.092255] phy_stop+0x90/0xb0
[10.092260] hns_nic_init_phy+0xf8/0x110
[10.092262] hns_nic_try_get_ae+0x4c/0x3b0
[10.092264] hns_nic_dev_probe+0x1fc/0x480
[10.092268] platform_drv_probe+0x50/0xa0
[10.092271] really_probe+0x1f4/0x298
[10.092273] driver_probe_device+0x58/0x108
[10.092275] __driver_attach+0xdc/0xe0
[10.092278] bus_for_each_dev+0x74/0xc8
[10.092280] driver_attach+0x20/0x28
[10.092283] bus_add_driver+0x1b8/0x228
[10.092285] driver_register+0x60/0x110
[10.092288] __platform_driver_register+0x40/0x48
[10.092292] hns_nic_dev_driver_init+0x18/0x20
[10.092296] do_one_initcall+0x5c/0x180
[10.092299] kernel_init_freeable+0x198/0x240
[10.092303] kernel_init+0x10/0x108
[10.092306] ret_from_fork+0x10/0x18
[10.092308] ---[ end trace 1396dd0278e397eb ]---
This WARNING occurred because of calling phy_stop before phy_start.
The root cause of the problem in commit '308c6cafde01' is:
Reference to hns_nic_init_phy, the flag phydev->supported is changed after
phy_connect_direct. The flag phydev->supported is 0x6ff when hns modules is
loaded, so will not change Fiber Port power(Reference to marvell.c), which
is power on at default.
Then the flag phydev->supported is changed to 0x6f, so Fiber Port power is
off when removing hns modules.
When hns modules installed again, the flag phydev->supported is default
value 0x6ff, so will not change Fiber Port power(now is off), causing mac
link not up problem.
So the solution is change phy flags before phy_connect_direct.
Fixes: 308c6cafde ("net: hns: All ports can not work when insmod hns ko after rmmod.")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This driver uses GPIO descriptors only, <linux/of_gpio.h>
is not used so drop the include.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefano Brivio says:
====================
Fix two further potential unbounded recursions in GUE error handlers
Patch 1/2 takes care of preventing the issue fixed by commit 11789039da
("fou: Prevent unbounded recursion in GUE error handler") also with
UDP-Lite payloads -- I just realised this might happen from a syzbot
report.
Patch 2/2 fixes the issue for both UDP and UDP-Lite on IPv6, which I also
forgot to deal with in that same commit.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
I forgot to deal with IPv6 in commit 11789039da ("fou: Prevent unbounded
recursion in GUE error handler").
Now syzbot reported what might be the same type of issue, caused by
gue6_err(), that is, handling exceptions for direct UDP encapsulation in
GUE (UDP-in-UDP) leads to unbounded recursion in the GUE exception
handler.
As it probably doesn't make sense to set up GUE this way, and it's
currently not even possible to configure this, skip exception handling for
UDP (or UDP-Lite) packets encapsulated in UDP (or UDP-Lite) packets with
GUE on IPv6.
Reported-by: syzbot+4ad25edc7a33e4ab91e0@syzkaller.appspotmail.com
Reported-by: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Fixes: b8a51b38e4 ("fou, fou6: ICMP error handlers for FoU and GUE")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit 11789039da ("fou: Prevent unbounded recursion in GUE error
handler"), I didn't take care of the case where UDP-Lite is encapsulated
into UDP or UDP-Lite with GUE. From a syzbot report about a possibly
similar issue with GUE on IPv6, I just realised the same thing might
happen with a UDP-Lite inner payload.
Also skip exception handling for inner UDP-Lite protocol.
Fixes: 11789039da ("fou: Prevent unbounded recursion in GUE error handler")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The previous commit fa642f0883
("openvswitch: Derive IP protocol number for IPv6 later frags")
introduces IP protocol number parsing for IPv6 later frags that can mess
up the network header length calculation logic, i.e. nh_len < 0.
However, the network header length calculation is mainly for deriving
the transport layer header in the key extraction process which the later
fragment does not apply.
Therefore, this commit skips the network header length calculation to
fix the issue.
Reported-by: Chris Mi <chrism@mellanox.com>
Reported-by: Greg Rose <gvrose8192@gmail.com>
Fixes: fa642f0883 ("openvswitch: Derive IP protocol number for IPv6 later frags")
Signed-off-by: Yi-Hung Wei <yihung.wei@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 653e92a917 ("net: macb: add support for padding and fcs
computation") introduced a bug fixed by commit 899ecaedd1 ("net:
ethernet: cadence: fix socket buffer corruption problem"). Code removed
in this patch is not reachable at all so remove it.
Fixes: 653e92a917 ("net: macb: add support for padding and fcs computation")
Cc: Tristram Ha <Tristram.Ha@microchip.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This driver does not use the old GPIO includes so drop
them.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Denis Bolotin says:
====================
qed: Misc fixes in qed
This patch series fixes 2 potential bugs in qed.
Please consider applying to net.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure chain element is updated before ringing the doorbell.
Signed-off-by: Denis Bolotin <dbolotin@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In PBL chains with non power of 2 page count, the producer is not at the
beginning of the chain when index is 0 after a wrap. Therefore, after the
producer index wrap around, page index should be calculated more carefully.
Signed-off-by: Denis Bolotin <dbolotin@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit dcda9b0471 ("mm, tree wide: replace __GFP_REPEAT by
__GFP_RETRY_MAYFAIL with more useful semantic") replaced __GFP_REPEAT in
alloc_skb_with_frags() with __GFP_RETRY_MAYFAIL when the allocation may
directly reclaim.
The previous behavior would require reclaim up to 1 << order pages for
skb aligned header_len of order > PAGE_ALLOC_COSTLY_ORDER before failing,
otherwise the allocations in alloc_skb() would loop in the page allocator
looking for memory. __GFP_RETRY_MAYFAIL makes both allocations failable
under memory pressure, including for the HEAD allocation.
This can cause, among many other things, write() to fail with ENOTCONN
during RPC when under memory pressure.
These allocations should succeed as they did previous to dcda9b0471
even if it requires calling the oom killer and additional looping in the
page allocator to find memory. There is no way to specify the previous
behavior of __GFP_REPEAT, but it's unlikely to be necessary since the
previous behavior only guaranteed that 1 << order pages would be reclaimed
before failing for order > PAGE_ALLOC_COSTLY_ORDER. That reclaim is not
guaranteed to be contiguous memory, so repeating for such large orders is
usually not beneficial.
Removing the setting of __GFP_RETRY_MAYFAIL to restore the previous
behavior, specifically not allowing alloc_skb() to fail for small orders
and oom kill if necessary rather than allowing RPCs to fail.
Fixes: dcda9b0471 ("mm, tree wide: replace __GFP_REPEAT by __GFP_RETRY_MAYFAIL with more useful semantic")
Signed-off-by: David Rientjes <rientjes@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently there are some issues with the ucc_of_parse_tdm function:
1, a possible null pointer dereference in ucc_of_parse_tdm,
detected by the semantic patch deref_null.cocci,
with the following warning:
drivers/soc/fsl/qe/qe_tdm.c:177:21-24: ERROR: pdev is NULL but dereferenced.
2, dev gets modified, so in any case that devm_iounmap() will fail
even when the new pdev is valid, because the iomap was done with a
different pdev.
3, there is no driver bind with the "fsl,t1040-qe-si" or
"fsl,t1040-qe-siram" device. So allocating resources using devm_*()
with these devices won't provide a cleanup path for these resources
when the caller fails.
This patch fixes them.
Suggested-by: Li Yang <leoyang.li@nxp.com>
Suggested-by: Christophe LEROY <christophe.leroy@c-s.fr>
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Reviewed-by: Peng Hao <peng.hao2@zte.com.cn>
CC: Julia Lawall <julia.lawall@lip6.fr>
CC: Zhao Qiang <qiang.zhao@nxp.com>
CC: David S. Miller <davem@davemloft.net>
CC: netdev@vger.kernel.org
CC: linuxppc-dev@lists.ozlabs.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
There are two new Realtek Ethernet devices which are re-branded r8168h.
Add the IDs to to support them.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit fixes a regression in AF_INET/RTM_GETADDR and
AF_INET6/RTM_GETADDR.
Before this commit, the kernel would stop dumping addresses once the first
skb was full and end the stream with NLMSG_DONE(-EMSGSIZE). The error
shouldn't be sent back to netlink_dump so the callback is kept alive. The
userspace is expected to call back with a new empty skb.
Changes from V1:
- The error is not handled in netlink_dump anymore but rather in
inet_dump_ifaddr and inet6_dump_addr directly as suggested by
David Ahern.
Fixes: d7e38611b8 ("net/ipv4: Put target net when address dump fails due to bad attributes")
Fixes: 242afaa696 ("net/ipv6: Put target net when address dump fails due to bad attributes")
Cc: David Ahern <dsahern@gmail.com>
Cc: "David S . Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Arthur Gautier <baloo@gandi.net>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If an error occurs after the call to 'pci_alloc_irq_vectors()', we must
call 'pci_free_irq_vectors()' in order to avoid a resource leak.
The same sequence is already in place in the corresponding 'cgx_remove()'
function.
Fixes: 1463f382f5 ("octeontx2-af: Add support for CGX link management")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument
of the user address range verification function since we got rid of the
old racy i386-only code to walk page tables by hand.
It existed because the original 80386 would not honor the write protect
bit when in kernel mode, so you had to do COW by hand before doing any
user access. But we haven't supported that in a long time, and these
days the 'type' argument is a purely historical artifact.
A discussion about extending 'user_access_begin()' to do the range
checking resulted this patch, because there is no way we're going to
move the old VERIFY_xyz interface to that model. And it's best done at
the end of the merge window when I've done most of my merges, so let's
just get this done once and for all.
This patch was mostly done with a sed-script, with manual fix-ups for
the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form.
There were a couple of notable cases:
- csky still had the old "verify_area()" name as an alias.
- the iter_iov code had magical hardcoded knowledge of the actual
values of VERIFY_{READ,WRITE} (not that they mattered, since nothing
really used it)
- microblaze used the type argument for a debug printout
but other than those oddities this should be a total no-op patch.
I tried to fix up all architectures, did fairly extensive grepping for
access_ok() uses, and the changes are trivial, but I may have missed
something. Any missed conversion should be trivially fixable, though.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'locks-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull file locking bugfix from Jeff Layton:
"This is a one-line fix for a bug that syzbot turned up in the new
patches to mitigate the thundering herd when a lock is released"
* tag 'locks-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
locks: fix error in locks_move_blocks()
Among a few HD-audio fixes, the only significant one is the
regression fix on some machines like Dell XPS due to the default
binding changes. We ended up reverting the whole since the fix for
ASoC HD-audio driver won't be available immediately.
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Merge tag 'sound-fix-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Among a few HD-audio fixes, the only significant one is the regression
fix on some machines like Dell XPS due to the default binding changes.
We ended up reverting the whole since the fix for ASoC HD-audio driver
won't be available immediately"
* tag 'sound-fix-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Revert DSP detection on legacy HD-audio driver
ALSA: hda/tegra: clear pending irq handlers
ALSA: hda/realtek: Enable the headset mic auto detection for ASUS laptops
Pull networking fixes from David Miller:
"Several fixes here. Basically split down the line between newly
introduced regressions and long existing problems:
1) Double free in tipc_enable_bearer(), from Cong Wang.
2) Many fixes to nf_conncount, from Florian Westphal.
3) op->get_regs_len() can throw an error, check it, from Yunsheng
Lin.
4) Need to use GFP_ATOMIC in *_add_hash_mac_address() of fsl/fman
driver, from Scott Wood.
5) Inifnite loop in fib_empty_table(), from Yue Haibing.
6) Use after free in ax25_fillin_cb(), from Cong Wang.
7) Fix socket locking in nr_find_socket(), also from Cong Wang.
8) Fix WoL wakeup enable in r8169, from Heiner Kallweit.
9) On 32-bit sock->sk_stamp is not thread-safe, from Deepa Dinamani.
10) Fix ptr_ring wrap during queue swap, from Cong Wang.
11) Missing shutdown callback in hinic driver, from Xue Chaojing.
12) Need to return NULL on error from ip6_neigh_lookup(), from Stefano
Brivio.
13) BPF out of bounds speculation fixes from Daniel Borkmann"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (57 commits)
ipv6: Consider sk_bound_dev_if when binding a socket to an address
ipv6: Fix dump of specific table with strict checking
bpf: add various test cases to selftests
bpf: prevent out of bounds speculation on pointer arithmetic
bpf: fix check_map_access smin_value test when pointer contains offset
bpf: restrict unknown scalars of mixed signed bounds for unprivileged
bpf: restrict stack pointer arithmetic for unprivileged
bpf: restrict map value pointer arithmetic for unprivileged
bpf: enable access to ax register also from verifier rewrite
bpf: move tmp variable into ax register in interpreter
bpf: move {prev_,}insn_idx into verifier env
isdn: fix kernel-infoleak in capi_unlocked_ioctl
ipv6: route: Fix return value of ip6_neigh_lookup() on neigh_create() error
net/hamradio/6pack: use mod_timer() to rearm timers
net-next/hinic:add shutdown callback
net: hns3: call hns3_nic_net_open() while doing HNAE3_UP_CLIENT
ip: validate header length on virtual device xmit
tap: call skb_probe_transport_header after setting skb->dev
ptr_ring: wrap back ->producer in __ptr_ring_swap_queue()
net: rds: remove unnecessary NULL check
...
IPv6 does not consider if the socket is bound to a device when binding
to an address. The result is that a socket can be bound to eth0 and then
bound to the address of eth1. If the device is a VRF, the result is that
a socket can only be bound to an address in the default VRF.
Resolve by considering the device if sk_bound_dev_if is set.
This problem exists from the beginning of git history.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dump of a specific table with strict checking enabled is looping. The
problem is that the end of the table dump is not marked in the cb. When
dumping a specific table, cb args 0 and 1 are not used (they are the hash
index and entry with an hash table index when dumping all tables). Re-use
args[0] to hold a 'done' flag for the specific table dump.
Fixes: 13e38901d4 ("net/ipv6: Plumb support for filtering route dumps")
Reported-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull input updates from Dmitry Torokhov:
"A tiny pull request this merge window unfortunately, should get more
material in for the next release:
- new driver for Raspberry Pi's touchscreen (firmware interface)
- miscellaneous input driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G
Input: atmel_mxt_ts - don't try to free unallocated kernel memory
Input: drv2667 - fix indentation issues
Input: touchscreen - fix coding style issue
Input: add official Raspberry Pi's touchscreen driver
Input: nomadik-ske-keypad - fix a loop timeout test
Input: rotary-encoder - don't log EPROBE_DEFER to kernel log
Input: olpc_apsp - remove set but not used variable 'np'
Input: olpc_apsp - enable the SP clock
Input: olpc_apsp - check FIFO status on open(), not probe()
Input: olpc_apsp - drop CONFIG_OLPC dependency
clk: mmp2: add SP clock
dt-bindings: marvell,mmp2: Add clock id for the SP clock
Input: ad7879 - drop platform data support
discard in virtio blk
misc fixes and cleanups
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio/vhost updates from Michael Tsirkin:
"Features, fixes, cleanups:
- discard in virtio blk
- misc fixes and cleanups"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost: correct the related warning message
vhost: split structs into a separate header file
virtio: remove deprecated VIRTIO_PCI_CONFIG()
vhost/vsock: switch to a mutex for vhost_vsock_hash
virtio_blk: add discard and write zeroes support
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Merge tag 'for-4.21/block-20190102' of git://git.kernel.dk/linux-block
Pull more block updates from Jens Axboe:
- Dead code removal for loop/sunvdc (Chengguang)
- Mark BIDI support for bsg as deprecated, logging a single dmesg
warning if anyone is actually using it (Christoph)
- blkcg cleanup, killing a dead function and making the tryget_closest
variant easier to read (Dennis)
- Floppy fixes, one fixing a regression in swim3 (Finn)
- lightnvm use-after-free fix (Gustavo)
- gdrom leak fix (Wenwen)
- a set of drbd updates (Lars, Luc, Nathan, Roland)
* tag 'for-4.21/block-20190102' of git://git.kernel.dk/linux-block: (28 commits)
block/swim3: Fix regression on PowerBook G3
block/swim3: Fix -EBUSY error when re-opening device after unmount
block/swim3: Remove dead return statement
block/amiflop: Don't log error message on invalid ioctl
gdrom: fix a memory leak bug
lightnvm: pblk: fix use-after-free bug
block: sunvdc: remove redundant code
block: loop: remove redundant code
bsg: deprecate BIDI support in bsg
blkcg: remove unused __blkg_release_rcu()
blkcg: clean up blkg_tryget_closest()
drbd: Change drbd_request_detach_interruptible's return type to int
drbd: Avoid Clang warning about pointless switch statment
drbd: introduce P_ZEROES (REQ_OP_WRITE_ZEROES on the "wire")
drbd: skip spurious timeout (ping-timeo) when failing promote
drbd: don't retry connection if peers do not agree on "authentication" settings
drbd: fix print_st_err()'s prototype to match the definition
drbd: avoid spurious self-outdating with concurrent disconnect / down
drbd: do not block when adjusting "disk-options" while IO is frozen
drbd: fix comment typos
...
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Merge tag 'for-4.21/libata-20190102' of git://git.kernel.dk/linux-block
Pull libata fix from Jens Axboe:
"This libata change missed the original libata pull request.
Just a single fix in here, fixing a missed reference drop"
* tag 'for-4.21/libata-20190102' of git://git.kernel.dk/linux-block:
ata: pata_macio: add of_node_put()
comes out. This way the SoC DTS files can use the proper defines from a
stable tag.
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull more clk updates from Stephen Boyd:
"One more patch to generalize a set of DT binding defines now before
-rc1 comes out.
This way the SoC DTS files can use the proper defines from a stable
tag"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: imx8qxp: make the name of clock ID generic
Fix two potential NULL pointer dereferences found by Coverity in
the software nodes code introduced recently (Colin Ian King).
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Merge tag 'devprop-4.21-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework fixes from Rafael Wysocki:
"Fix two potential NULL pointer dereferences found by Coverity in the
software nodes code introduced recently (Colin Ian King)"
* tag 'devprop-4.21-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
drivers: base: swnode: check if swnode is NULL before dereferencing it
drivers: base: swnode: check if pointer p is NULL before dereferencing it
- Introduce flush api to support clients that must busy-wait in atomic context
- Support multiple controllers per device
- Hi3660: a bugfix and constify ops structure
- TI-MsgMgr: off by one bugfix.
- BCM: switch to spdx license
- Tegra-HSP: support for shared mailboxes and suspend/resume.
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Merge tag 'mailbox-v4.21' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
- Introduce device-managed registration
devm_mbox_controller_un/register and convert drivers to use it
- Introduce flush api to support clients that must busy-wait in atomic
context
- Support multiple controllers per device
- Hi3660: a bugfix and constify ops structure
- TI-MsgMgr: off by one bugfix.
- BCM: switch to spdx license
- Tegra-HSP: support for shared mailboxes and suspend/resume.
* tag 'mailbox-v4.21' of git://git.linaro.org/landing-teams/working/fujitsu/integration: (30 commits)
mailbox: tegra-hsp: Use device-managed registration API
mailbox: tegra-hsp: use devm_kstrdup_const()
mailbox: tegra-hsp: Add suspend/resume support
mailbox: tegra-hsp: Add support for shared mailboxes
dt-bindings: tegra186-hsp: Add shared mailboxes
mailbox: Allow multiple controllers per device
mailbox: Support blocking transfers in atomic context
mailbox: ti-msgmgr: Use device-managed registration API
mailbox: stm32-ipcc: Use device-managed registration API
mailbox: rockchip: Use device-managed registration API
mailbox: qcom-apcs: Use device-managed registration API
mailbox: platform-mhu: Use device-managed registration API
mailbox: omap: Use device-managed registration API
mailbox: mtk-cmdq: Remove needless devm_kfree() calls
mailbox: mtk-cmdq: Use device-managed registration API
mailbox: xgene-slimpro: Use device-managed registration API
mailbox: sti: Use device-managed registration API
mailbox: altera: Use device-managed registration API
mailbox: imx: Use device-managed registration API
mailbox: hi6220: Use device-managed registration API
...
Pull UML updates from Richard Weinberger:
- DISCARD support for our block device driver
- Many TLB flush optimizations
- Various smaller fixes
- And most important, Anton agreed to help me maintaining UML
* 'for-linus-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: Remove obsolete reenable_XX calls
um: writev needs <sys/uio.h>
Add Anton Ivanov to UML maintainers
um: remove redundant generic-y
um: Optimize Flush TLB for force/fork case
um: Avoid marking pages with "changed protection"
um: Skip TLB flushing where not needed
um: Optimize TLB operations v2
um: Remove unnecessary faulted check in uaccess.c
um: Add support for DISCARD in the UBD Driver
um: Remove unsafe printks from the io thread
um: Clean-up command processing in UML UBD driver
um: Switch to block-mq constants in the UML UBD driver
um: Make GCOV depend on !KCOV
um: Include sys/uio.h to have writev()
um: Add HAVE_DEBUG_BUGVERBOSE
um: Update maintainers file entry
- A larger update for the zcrypt / AP bus code
+ Update two inline assemblies in the zcrypt driver to make gcc happy
+ Add a missing reply code for invalid special commands for zcrypt
+ Allow AP device reset to be triggered from user space
+ Split the AP scan function into smaller, more readable functions
- Updates for vfio-ccw and vfio-ap
+ Add maintainers and reviewer for vfio-ccw
+ Include facility.h in vfio_ap_drv.c to avoid fragile include chain
+ Simplicy vfio-ccw state machine
- Use the common code version of bust_spinlocks
- Make use of the DEFINE_SHOW_ATTRIBUTE
- Fix three incorrect file permissions in the DASD driver
- Remove bit spin-lock from the PCI interrupt handler
- Fix GFP_ATOMIC vs GFP_KERNEL in the PCI code
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Merge tag 's390-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky:
- A larger update for the zcrypt / AP bus code:
+ Update two inline assemblies in the zcrypt driver to make gcc happy
+ Add a missing reply code for invalid special commands for zcrypt
+ Allow AP device reset to be triggered from user space
+ Split the AP scan function into smaller, more readable functions
- Updates for vfio-ccw and vfio-ap
+ Add maintainers and reviewer for vfio-ccw
+ Include facility.h in vfio_ap_drv.c to avoid fragile include chain
+ Simplicy vfio-ccw state machine
- Use the common code version of bust_spinlocks
- Make use of the DEFINE_SHOW_ATTRIBUTE
- Fix three incorrect file permissions in the DASD driver
- Remove bit spin-lock from the PCI interrupt handler
- Fix GFP_ATOMIC vs GFP_KERNEL in the PCI code
* tag 's390-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/zcrypt: rework ap scan bus code
s390/zcrypt: make sysfs reset attribute trigger queue reset
s390/pci: fix sleeping in atomic during hotplug
s390/pci: remove bit_lock usage in interrupt handler
s390/drivers: fix proc/debugfs file permissions
s390: convert to DEFINE_SHOW_ATTRIBUTE
MAINTAINERS/vfio-ccw: add Farhan and Eric, make Halil Reviewer
vfio: ccw: Merge BUSY and BOXED states
s390: use common bust_spinlocks()
s390/zcrypt: improve special ap message cmd handling
s390/ap: rework assembler functions to use unions for in/out register variables
s390: vfio-ap: include <asm/facility> for test_facility()
After moving all requests from
fl->fl_blocked_requests
to
new->fl_blocked_requests
it is nonsensical to do anything to all the remaining elements, there
aren't any. This should do something to all the requests that have been
moved. For simplicity, it does it to all requests in the target list.
Setting "f->fl_blocker = new" to all members of new->fl_blocked_requests
is "obviously correct" as it preserves the invariant of the linkage
among requests.
Reported-by: syzbot+239d99847eb49ecb3899@syzkaller.appspotmail.com
Fixes: 5946c4319e ("fs/locks: allow a lock request to block other requests.")
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Alexei Starovoitov says:
====================
pull-request: bpf 2019-01-02
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) prevent out of bounds speculation on pointer arithmetic, from Daniel.
2) typo fix, from Xiaozhou.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Gunthorpe