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1500
In the receive queue for 4096 bytes fragments, the page address
set in the SW data0 field of the descriptor is not the one we got
when doing the reassembly in receive. The page structure was retrieved
from the wrong descriptor into SW data0 which is then causing a
page fault when UDP checksum is accessing data above 1500.
Signed-off-by: Rex Chang <rchang@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2018-01-16
this is a pull reqeust of a single patch for net/master:
This patch by Stephane Grosjean fixes a potential bug in the packet
fragmentation in the peak USB driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case of TX timeout, fs_timeout() calls phy_stop(), which
triggers the following BUG_ON() as we are in interrupt.
[92708.199889] kernel BUG at drivers/net/phy/mdio_bus.c:482!
[92708.204985] Oops: Exception in kernel mode, sig: 5 [#1]
[92708.210119] PREEMPT
[92708.212107] CMPC885
[92708.214216] CPU: 0 PID: 3 Comm: ksoftirqd/0 Tainted: G W 4.9.61 #39
[92708.223227] task: c60f0a40 task.stack: c6104000
[92708.227697] NIP: c02a84bc LR: c02a947c CTR: c02a93d8
[92708.232614] REGS: c6105c70 TRAP: 0700 Tainted: G W (4.9.61)
[92708.241193] MSR: 00021032 <ME,IR,DR,RI>[92708.244818] CR: 24000822 XER: 20000000
[92708.248767]
GPR00: c02a947c c6105d20 c60f0a40 c62b4c00 00000005 0000001f c069aad8 0001a688
GPR08: 00000007 00000100 c02a93d8 00000000 000005fc 00000000 c6213240 c06338e4
GPR16: 00000001 c06330d4 c0633094 00000000 c0680000 c6104000 c6104000 00000000
GPR24: 00000200 00000000 ffffffff 00000004 00000078 00009032 00000000 c62b4c00
NIP [c02a84bc] mdiobus_read+0x20/0x74
[92708.281517] LR [c02a947c] kszphy_config_intr+0xa4/0xc4
[92708.286547] Call Trace:
[92708.288980] [c6105d20] [c6104000] 0xc6104000 (unreliable)
[92708.294339] [c6105d40] [c02a947c] kszphy_config_intr+0xa4/0xc4
[92708.300098] [c6105d50] [c02a5330] phy_stop+0x60/0x9c
[92708.305007] [c6105d60] [c02c84d0] fs_timeout+0xdc/0x110
[92708.310197] [c6105d80] [c035cd48] dev_watchdog+0x268/0x2a0
[92708.315593] [c6105db0] [c0060288] call_timer_fn+0x34/0x17c
[92708.321014] [c6105dd0] [c00605f0] run_timer_softirq+0x21c/0x2e4
[92708.326887] [c6105e50] [c001e19c] __do_softirq+0xf4/0x2f4
[92708.332207] [c6105eb0] [c001e3c8] run_ksoftirqd+0x2c/0x40
[92708.337560] [c6105ec0] [c003b420] smpboot_thread_fn+0x1f0/0x258
[92708.343405] [c6105ef0] [c003745c] kthread+0xbc/0xd0
[92708.348217] [c6105f40] [c000c400] ret_from_kernel_thread+0x5c/0x64
[92708.354275] Instruction dump:
[92708.357207] 7c0803a6 bbc10018 38210020 4e800020 7c0802a6 9421ffe0 54290024 bfc10018
[92708.364865] 90010024 7c7f1b78 81290008 552902ee <0f090000> 3bc3002c 7fc3f378 90810008
[92708.372711] ---[ end trace 42b05441616fafd7 ]---
This patch moves fs_timeout() actions into an async worker.
Fixes: commit 48257c4f168e5 ("Add fs_enet ethernet network driver, for several embedded platforms")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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r8153 on Dell TB15/16 dock corrupts rx packets.
This change is suggested by Realtek. They guess that the XHCI controller
doesn't have enough buffer, and their guesswork is correct, once the RX
aggregation gets disabled, the issue is gone.
ASMedia is currently working on a real sulotion for this issue.
Dell and ODM confirm the bcdDevice and iSerialNumber is unique for TB16.
Note that TB15 has different bcdDevice and iSerialNumber, which are not
unique values. If you still have TB15, please contact Dell to replace it
with TB16.
BugLink: https://bugs.launchpad.net/bugs/1729674
Cc: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tfile->tun could be detached before we close the tun fd,
via tun_detach_all(), so it should not be used to check for
tfile->tx_array.
As Jason suggested, we probably have to clean it up
unconditionally both in __tun_deatch() and tun_detach_all(),
but this requires to check if it is initialized or not.
Currently skb_array_cleanup() doesn't have such a check,
so I check it in the caller and introduce a helper function,
it is a bit ugly but we can always improve it in net-next.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Fixes: 1576d9860599 ("tun: switch to use skb array for tx")
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull rdma fixes from Doug Ledford:
"We had a few more items creep up over the last week. Given we are in
-rc8, these are obviously limited to bugs that have a big downside and
for which we are certain of the fix.
The first is a straight up oops bug that all you have to do is read
the code to see it's a guaranteed 100% oops bug.
The second is a use-after-free issue. We get away lucky if the queue
we are shutting down is empty, but if it isn't, we can end up oopsing.
We really need to drain the queue before destroying it.
The final one is an issue with bad user input causing us to access our
port array out of bounds. While fixing the array out of bounds issue,
it was noticed that the original code did the same thing twice (the
call to rdma_ah_set_port_num()), so its removal is not balanced by a
readd elsewhere, it was already where it needed to be in addition to
where it didn't need to be.
Summary:
- Oops fix in hfi1 driver
- use-after-free issue in iser-target
- use of user supplied array index without proper checking"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/mlx5: Fix out-of-bound access while querying AH
IB/hfi1: Prevent a NULL dereference
iser-target: Fix possible use-after-free in connection establishment error
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Pull networking fixes from David Miller:
1) Two read past end of buffer fixes in AF_KEY, from Eric Biggers.
2) Memory leak in key_notify_policy(), from Steffen Klassert.
3) Fix overflow with bpf arrays, from Daniel Borkmann.
4) Fix RDMA regression with mlx5 due to mlx5 no longer using
pci_irq_get_affinity(), from Saeed Mahameed.
5) Missing RCU read locking in nl80211_send_iface() when it calls
ieee80211_bss_get_ie(), from Dominik Brodowski.
6) cfg80211 should check dev_set_name()'s return value, from Johannes
Berg.
7) Missing module license tag in 9p protocol, from Stephen Hemminger.
8) Fix crash due to too small MTU in udp ipv6 sendmsg, from Mike
Maloney.
9) Fix endless loop in netlink extack code, from David Ahern.
10) TLS socket layer sets inverted error codes, resulting in an endless
loop. From Robert Hering.
11) Revert openvswitch erspan tunnel support, it's mis-designed and we
need to kill it before it goes into a real release. From William Tu.
12) Fix lan78xx failures in full speed USB mode, from Yuiko Oshino.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (54 commits)
net, sched: fix panic when updating miniq {b,q}stats
qed: Fix potential use-after-free in qed_spq_post()
nfp: use the correct index for link speed table
lan78xx: Fix failure in USB Full Speed
sctp: do not allow the v4 socket to bind a v4mapped v6 address
sctp: return error if the asoc has been peeled off in sctp_wait_for_sndbuf
sctp: reinit stream if stream outcnt has been change by sinit in sendmsg
ibmvnic: Fix pending MAC address changes
netlink: extack: avoid parenthesized string constant warning
ipv4: Make neigh lookup keys for loopback/point-to-point devices be INADDR_ANY
net: Allow neigh contructor functions ability to modify the primary_key
sh_eth: fix dumping ARSTR
Revert "openvswitch: Add erspan tunnel support."
net/tls: Fix inverted error codes to avoid endless loop
ipv6: ip6_make_skb() needs to clear cork.base.dst
sctp: avoid compiler warning on implicit fallthru
net: ipv4: Make "ip route get" match iif lo rules again.
netlink: extack needs to be reset each time through loop
tipc: fix a memory leak in tipc_nl_node_get_link()
ipv6: fix udpv6 sendmsg crash caused by too small MTU
...
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We need to check if p_ent->comp_mode is QED_SPQ_MODE_EBLOCK before
calling qed_spq_add_entry(). The test is fine is the mode is EBLOCK,
but if it isn't then qed_spq_add_entry() might kfree(p_ent).
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sts variable is holding link speed as well as state. We should
be using ls to index into ls_to_ethtool.
Fixes: 265aeb511bd5 ("nfp: add support for .get_link_ksettings()")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix initialize the uninitialized tx_qlen to an appropriate value when USB
Full Speed is used.
Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
More fixes:
* hwsim:
- properly flush deletion works at module unload
- validate # of channels passed from userspace
* cfg80211:
- fix RCU locking regression
- initialize on-stack channel data for nl80211 event
- check dev_set_name() return value
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Due to architecture limitations, the IBM VNIC client driver is unable
to perform MAC address changes unless the device has "logged in" to
its backing device. Currently, pending MAC changes are handled before
login, resulting in an error and failure to change the MAC address.
Moving that chunk to the end of the ibmvnic_login function, when we are
sure that it was successful, fixes that.
The MAC address can be changed when the device is up or down, so
only check if the device is in a "PROBED" state before setting the
MAC address.
Fixes: c26eba03e407 ("ibmvnic: Update reset infrastructure to support tunable parameters")
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Reviewed-by: John Allen <jallen@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In some rare conditions when running one PEAK USB-FD interface over
a non high-speed USB controller, one useless USB fragment might be sent.
This patch fixes the way a USB command is fragmented when its length is
greater than 64 bytes and when the underlying USB controller is not a
high-speed one.
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The rdma_ah_find_type() accesses the port array based on an index
controlled by userspace. The existing bounds check is after the first use
of the index, so userspace can generate an out of bounds access, as shown
by the KASN report below.
==================================================================
BUG: KASAN: slab-out-of-bounds in to_rdma_ah_attr+0xa8/0x3b0
Read of size 4 at addr ffff880019ae2268 by task ibv_rc_pingpong/409
CPU: 0 PID: 409 Comm: ibv_rc_pingpong Not tainted 4.15.0-rc2-00031-gb60a3faf5b83-dirty #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org 04/01/2014
Call Trace:
dump_stack+0xe9/0x18f
print_address_description+0xa2/0x350
kasan_report+0x3a5/0x400
to_rdma_ah_attr+0xa8/0x3b0
mlx5_ib_query_qp+0xd35/0x1330
ib_query_qp+0x8a/0xb0
ib_uverbs_query_qp+0x237/0x7f0
ib_uverbs_write+0x617/0xd80
__vfs_write+0xf7/0x500
vfs_write+0x149/0x310
SyS_write+0xca/0x190
entry_SYSCALL_64_fastpath+0x18/0x85
RIP: 0033:0x7fe9c7a275a0
RSP: 002b:00007ffee5498738 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe9c7ce4b00 RCX: 00007fe9c7a275a0
RDX: 0000000000000018 RSI: 00007ffee5498800 RDI: 0000000000000003
RBP: 000055d0c8d3f010 R08: 00007ffee5498800 R09: 0000000000000018
R10: 00000000000000ba R11: 0000000000000246 R12: 0000000000008000
R13: 0000000000004fb0 R14: 000055d0c8d3f050 R15: 00007ffee5498560
Allocated by task 1:
__kmalloc+0x3f9/0x430
alloc_mad_private+0x25/0x50
ib_mad_post_receive_mads+0x204/0xa60
ib_mad_init_device+0xa59/0x1020
ib_register_device+0x83a/0xbc0
mlx5_ib_add+0x50e/0x5c0
mlx5_add_device+0x142/0x410
mlx5_register_interface+0x18f/0x210
mlx5_ib_init+0x56/0x63
do_one_initcall+0x15b/0x270
kernel_init_freeable+0x2d8/0x3d0
kernel_init+0x14/0x190
ret_from_fork+0x24/0x30
Freed by task 0:
(stack is not available)
The buggy address belongs to the object at ffff880019ae2000
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 104 bytes to the right of
512-byte region [ffff880019ae2000, ffff880019ae2200)
The buggy address belongs to the page:
page:000000005d674e18 count:1 mapcount:0 mapping: (null) index:0x0 compound_mapcount: 0
flags: 0x4000000000008100(slab|head)
raw: 4000000000008100 0000000000000000 0000000000000000 00000001000c000c
raw: dead000000000100 dead000000000200 ffff88001a402000 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff880019ae2100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff880019ae2180: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc
>ffff880019ae2200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff880019ae2280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff880019ae2300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
Disabling lock debugging due to kernel taint
Cc: <stable@vger.kernel.org>
Fixes: 44c58487d51a ("IB/core: Define 'ib' and 'roce' rdma_ah_attr types")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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ARSTR is always located at the start of the TSU register region, thus
using add_reg() instead of add_tsu_reg() in __sh_eth_get_regs() to dump it
causes EDMR or EDSR (depending on the register layout) to be dumped instead
of ARSTR. Use the correct condition/macro there...
Fixes: 6b4b4fead342 ("sh_eth: Implement ethtool register dump operations")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This driver lacks a MODULE_LICENSE tag, leading to a Kbuild warning:
WARNING: modpost: missing MODULE_LICENSE() in drivers/net/ethernet/cirrus/cs89x0.o
This adds license, author, and description according to the
comment block at the start of the file.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ppp_dev_uninit(), which is the .ndo_uninit() handler of PPP devices,
needs to lock pn->all_ppp_mutex. Therefore we mustn't call
register_netdevice() with pn->all_ppp_mutex already locked, or we'd
deadlock in case register_netdevice() fails and calls .ndo_uninit().
Fortunately, we can unlock pn->all_ppp_mutex before calling
register_netdevice(). This lock protects pn->units_idr, which isn't
used in the device registration process.
However, keeping pn->all_ppp_mutex locked during device registration
did ensure that no device in transient state would be published in
pn->units_idr. In practice, unlocking it before calling
register_netdevice() doesn't change this property: ppp_unit_register()
is called with 'ppp_mutex' locked and all searches done in
pn->units_idr hold this lock too.
Fixes: 8cb775bc0a34 ("ppp: fix device unregistration upon netns deletion")
Reported-and-tested-by: syzbot+367889b9c9e279219175@syzkaller.appspotmail.com
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When creating a new radio on the fly, hwsim allows this
to be done with an arbitrary number of channels, but
cfg80211 only supports a limited number of simultaneous
channels, leading to a warning.
Fix this by validating the number - this requires moving
the define for the maximum out to a visible header file.
Reported-by: syzbot+8dd9051ff19940290931@syzkaller.appspotmail.com
Fixes: b59ec8dd4394 ("mac80211_hwsim: fix number of channels in interface combinations")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When closing multiple wmediumd instances with many radios and try to
unload the mac80211_hwsim module, it may happen that the work items live
longer than the module. To wait especially for this deletion work items,
add a work queue, otherwise flush_scheduled_work would be necessary.
Signed-off-by: Benjamin Beichler <benjamin.beichler@uni-rostock.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Pull NVMe fix from Jens Axboe:
"Just a single fix for nvme over fabrics that should go into 4.15"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvme-fabrics: initialize default host->id in nvmf_host_default()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 pti updates from Thomas Gleixner:
"This contains:
- a PTI bugfix to avoid setting reserved CR3 bits when PCID is
disabled. This seems to cause issues on a virtual machine at least
and is incorrect according to the AMD manual.
- a PTI bugfix which disables the perf BTS facility if PTI is
enabled. The BTS AUX buffer is not globally visible and causes the
CPU to fault when the mapping disappears on switching CR3 to user
space. A full fix which restores BTS on PTI is non trivial and will
be worked on.
- PTI bugfixes for EFI and trusted boot which make sure that the user
space visible page table entries have the NX bit cleared
- removal of dead code in the PTI pagetable setup functions
- add PTI documentation
- add a selftest for vsyscall to verify that the kernel actually
implements what it advertises.
- a sysfs interface to expose vulnerability and mitigation
information so there is a coherent way for users to retrieve the
status.
- the initial spectre_v2 mitigations, aka retpoline:
+ The necessary ASM thunk and compiler support
+ The ASM variants of retpoline and the conversion of affected ASM
code
+ Make LFENCE serializing on AMD so it can be used as speculation
trap
+ The RSB fill after vmexit
- initial objtool support for retpoline
As I said in the status mail this is the most of the set of patches
which should go into 4.15 except two straight forward patches still on
hold:
- the retpoline add on of LFENCE which waits for ACKs
- the RSB fill after context switch
Both should be ready to go early next week and with that we'll have
covered the major holes of spectre_v2 and go back to normality"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits)
x86,perf: Disable intel_bts when PTI
security/Kconfig: Correct the Documentation reference for PTI
x86/pti: Fix !PCID and sanitize defines
selftests/x86: Add test_vsyscall
x86/retpoline: Fill return stack buffer on vmexit
x86/retpoline/irq32: Convert assembler indirect jumps
x86/retpoline/checksum32: Convert assembler indirect jumps
x86/retpoline/xen: Convert Xen hypercall indirect jumps
x86/retpoline/hyperv: Convert assembler indirect jumps
x86/retpoline/ftrace: Convert ftrace assembler indirect jumps
x86/retpoline/entry: Convert entry assembler indirect jumps
x86/retpoline/crypto: Convert crypto assembler indirect jumps
x86/spectre: Add boot time option to select Spectre v2 mitigation
x86/retpoline: Add initial retpoline support
objtool: Allow alternatives to be ignored
objtool: Detect jumps to retpoline thunks
x86/pti: Make unpoison of pgd for trusted boot work for real
x86/alternatives: Fix optimize_nops() checking
sysfs/cpu: Fix typos in vulnerability documentation
x86/cpu/AMD: Use LFENCE_RDTSC in preference to MFENCE_RDTSC
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes and device ids for 4.15-rc8
Nothing major, small fixes for various devices, some resolutions for
bugs found by fuzzers, and the usual handful of new device ids.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
Documentation: usb: fix typo in UVC gadgetfs config command
usb: misc: usb3503: make sure reset is low for at least 100us
uas: ignore UAS for Norelsys NS1068(X) chips
USB: UDC core: fix double-free in usb_add_gadget_udc_release
USB: fix usbmon BUG trigger
usbip: vudc_tx: fix v_send_ret_submit() vulnerability to null xfer buffer
usbip: remove kernel addresses from usb device and urb debug msgs
usbip: fix vudc_rx: harden CMD_SUBMIT path to handle malicious input
USB: serial: cp210x: add new device ID ELV ALC 8xxx
USB: serial: cp210x: add IDs for LifeScan OneTouch Verio IQ
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fix from Greg KH:
"Here is a single android ashmem bugfix that resolves a reported issue
in that interface. It's been in linux-next this week with no reported
issues"
* tag 'staging-4.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: android: ashmem: fix a race condition in ASHMEM_SET_SIZE ioctl
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are two bugfixes for some driver bugs for 4.15-rc8
The first is a bluetooth security bug that has been ignored by the
Bluetooth developers for months for no obvious reason at all, so I've
taken it through my tree.
The second is a simple double-free bug in the mux subsystem.
Both have been in linux-next for a while with no reported issues"
* tag 'char-misc-4.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mux: core: fix double get_device()
Bluetooth: Prevent stack info leak from the EFS element.
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"This contains two build fixes for clang and two fixes for rather
unlikely situations in the Xen gntdev driver"
* tag 'for-linus-4.15-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/gntdev: Fix partial gntdev_mmap() cleanup
xen/gntdev: Fix off-by-one error when unmapping with holes
x86: xen: remove the use of VLAIS
x86/xen/time: fix section mismatch for xen_init_time_ops()
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Pull a single NVMe fix from Christoph for 4.15.
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC host fixes from Ulf Hansson:
- s3mci: mark debug_regs[] as static
- renesas_sdhi: Add MODULE_LICENSE
* tag 'mmc-v4.15-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: s3mci: mark debug_regs[] as static
mmc: renesas_sdhi: Add MODULE_LICENSE
|
|
git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
- Nouveau: regression fix
- Tegra: regression fix
- vmwgfx: crasher + freed data leak
- i915: KASAN use after free fix, whitelist register to avoid hang fix,
GVT fixes
- vc4: irq/pm fix
* tag 'drm-fixes-for-v4.15-rc8' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Don't adjust priority on an already signaled fence
drm/i915: Whitelist SLICE_COMMON_ECO_CHICKEN1 on Geminilake.
drm/vmwgfx: Potential off by one in vmw_view_add()
drm/tegra: sor: Fix hang on Tegra124 eDP
drm/vmwgfx: Don't cache framebuffer maps
drm/nouveau/disp/gf119: add missing drive vfunc ptr
drm/i915/gvt: Fix stack-out-of-bounds bug in cmd parser
drm/i915/gvt: Clear the shadow page table entry after post-sync
drm/vc4: Move IRQ enable to PM path
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
Mellanox, mlx5 fixes 2018-01-11
The following series includes fixes to mlx5 core and netdev driver.
To highlight we have two critical fixes in this series:
1st patch from Eran to address a fix for Host2BMC Breakage.
2nd patch from Saeed to address the RDMA IRQ vector affinity settings query
issue, the patch provides the correct mlx5_core implementation for RDMA to
correctly query vector affinity.
I sent this patch privately to Sagi a week a go, so he could to test it
but I didn't hear from him.
All other patches are trivial misc fixes.
Please pull and let me know if there's any problem.
for -stable v4.14-y and later:
("net/mlx5: Fix get vector affinity helper function")
("{net,ib}/mlx5: Don't disable local loopback multicast traffic when needed")
Note: Merging this series with net-next will produce the following conflict:
<<<<<<< HEAD
u8 disable_local_lb[0x1];
u8 reserved_at_3e2[0x1];
u8 log_min_hairpin_wq_data_sz[0x5];
u8 reserved_at_3e8[0x3];
=======
u8 disable_local_lb_uc[0x1];
u8 disable_local_lb_mc[0x1];
u8 reserved_at_3e3[0x8];
>>>>>>> 359c96447ac2297fabe15ef30b60f3b4b71e7fd0
To resolve, use the following hunk:
i.e:
<<<<<<
u8 disable_local_lb_uc[0x1];
u8 disable_local_lb_mc[0x1];
u8 log_min_hairpin_wq_data_sz[0x5];
u8 reserved_at_3e8[0x3];
>>>>>>
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
Hopefully final drm/i915 fixes for v4.15:
- Fix a KASAN reported use after free
- Whitelist a register to avoid hangs
- GVT fixes
* tag 'drm-intel-fixes-2018-01-11-1' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915: Don't adjust priority on an already signaled fence
drm/i915: Whitelist SLICE_COMMON_ECO_CHICKEN1 on Geminilake.
drm/i915/gvt: Fix stack-out-of-bounds bug in cmd parser
drm/i915/gvt: Clear the shadow page table entry after post-sync
|
|
git://people.freedesktop.org/~thomash/linux into drm-fixes
Two important fixes for vmwgfx.
The off-by-one fix could cause a malicious user to potentially crash the
kernel.
The framebuffer map cache fix can under some circumstances enable a user to
read from or write to freed pages.
* 'vmwgfx-fixes-4.15' of git://people.freedesktop.org/~thomash/linux:
drm/vmwgfx: Potential off by one in vmw_view_add()
drm/vmwgfx: Don't cache framebuffer maps
|
|
Pull ceph fixes from Ilya Dryomov:
"Two rbd fixes for 4.12 and 4.2 issues respectively, marked for
stable"
* tag 'ceph-for-4.15-rc8' of git://github.com/ceph/ceph-client:
rbd: set max_segments to USHRT_MAX
rbd: reacquire lock should update lock owner client id
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fix from Linus Walleij:
"Fix a raw vs elaborate GPIO descriptor bug introduced by yours truly"
* tag 'gpio-v4.15-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: Add missing open drain/source handling to gpiod_set_value_cansleep()
|
|
To avoid configuration override, timestamp set call will
be moved from the netdevice open flow to the init flow.
By this, a close-open procedure will not override the timestamp
configuration.
In addition, the change will rename mlx5e_timestamp_set function
to be mlx5e_timestamp_init.
Fixes: ef9814deafd0 ("net/mlx5e: Add HW timestamping (TS) support")
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
PPS event did not update ptp_clock_event fields, therefore,
timestamp value was not updated correctly. This fix updates the
event source and the timestamp value for each PPS event.
Fixes: 7c39afb394c7 ("net/mlx5: PTP code migration to driver core section")
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Reported-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Set features function sets dev->features in order to keep track of which
features were successfully changed and which weren't (in case the user
asks for more than one change in a single command).
This breaks the logic in __netdev_update_features which assumes that
dev->features is not changed on success and checks for diffs between
features and dev->features (diffs that might not exist at this point
because of the driver override).
The solution is to keep track of successful/failed feature changes and
assign them to dev->features in case of failure only.
Fixes: 0e405443e803 ("net/mlx5e: Improve set features ndo resiliency")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Should not do the following swap between TCs 0 and 1
when max num of TCs is 1:
tclass[prio=0]=1, tclass[prio=1]=0, tclass[prio=i]=i (for i>1)
Fixes: 08fb1dacdd76 ("net/mlx5e: Support DCBNL IEEE ETS")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
ETS initialization might fail, add a print to indicate
such failures.
Fixes: 08fb1dacdd76 ("net/mlx5e: Support DCBNL IEEE ETS")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
ethtool statistics should be updated even when the interface is down
since it shows more than just netdev counters, which might change while
the logical link is down.
One useful use case, for example, is when running RoCE traffic over the
interface (while the logical link is down, but physical link is up) and
examining rx_prioX_bytes.
Fixes: f62b8bb8f2d3 ("net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
We didn't store the result of mlx5_init_once, due to that
mlx5_load_one returned success on error. Fix that.
Fixes: 59211bd3b632 ("net/mlx5: Split the load/unload flow into hardware and software flows")
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Change mlx5_get_uars_page to return ERR_PTR in case of
allocation failure. Change all callers accordingly to
check the IS_ERR(ptr) instead of NULL.
Fixes: 59211bd3b632 ("net/mlx5: Split the load/unload flow into hardware and software flows")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Fix a memory leak where in case that pci_alloc_irq_vectors failed,
priv->irq_info was not released.
Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Alaa Hleihel <alaa@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
There are systems platform information management interfaces (such as
HOST2BMC) for which we cannot disable local loopback multicast traffic.
Separate disable_local_lb_mc and disable_local_lb_uc capability bits so
driver will not disable multicast loopback traffic if not supported.
(It is expected that Firmware will not set disable_local_lb_mc if
HOST2BMC is running for example.)
Function mlx5_nic_vport_update_local_lb will do best effort to
disable/enable UC/MC loopback traffic and return success only in case it
succeeded to changed all allowed by Firmware.
Adapt mlx5_ib and mlx5e to support the new cap bits.
Fixes: 2c43c5a036be ("net/mlx5e: Enable local loopback in loopback selftest")
Fixes: c85023e153e3 ("IB/mlx5: Add raw ethernet local loopback support")
Fixes: bded747bb432 ("net/mlx5: Add raw ethernet local loopback firmware command")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Cc: kernel-team@fb.com
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
When using a GPIO which is high by default, and initialize the
driver in USB Hub mode, initialization fails with:
[ 111.757794] usb3503 0-0008: SP_ILOCK failed (-5)
The reason seems to be that the chip is not properly reset.
Probe does initialize reset low, however some lines later the
code already set it back high, which is not long enouth.
Make sure reset is asserted for at least 100us by inserting a
delay after initializing the reset pin during probe.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for v4.15-rc8
Here are a couple of new device ids for cp210x.
Both have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
|
|
When we retire a signaled fence, we free the dependency tree. However,
we skip clearing the list so that if we then try to adjust the priority
of the signaled fence, we may walk the list of freed dependencies.
[ 3083.156757] ==================================================================
[ 3083.156806] BUG: KASAN: use-after-free in execlists_schedule+0x199/0x660 [i915]
[ 3083.156810] Read of size 8 at addr ffff8806bf20f400 by task Xorg/831
[ 3083.156815] CPU: 0 PID: 831 Comm: Xorg Not tainted 4.15.0-rc6-no-psn+ #1
[ 3083.156817] Hardware name: Notebook N24_25BU/N24_25BU, BIOS 5.12 02/17/2017
[ 3083.156818] Call Trace:
[ 3083.156823] dump_stack+0x5c/0x7a
[ 3083.156827] print_address_description+0x6b/0x290
[ 3083.156830] kasan_report+0x28f/0x380
[ 3083.156872] ? execlists_schedule+0x199/0x660 [i915]
[ 3083.156914] execlists_schedule+0x199/0x660 [i915]
[ 3083.156956] ? intel_crtc_atomic_check+0x146/0x4e0 [i915]
[ 3083.156997] ? execlists_submit_request+0xe0/0xe0 [i915]
[ 3083.157038] ? i915_vma_misplaced.part.4+0x25/0xb0 [i915]
[ 3083.157079] ? __i915_vma_do_pin+0x7c8/0xc80 [i915]
[ 3083.157121] ? intel_atomic_state_alloc+0x44/0x60 [i915]
[ 3083.157130] ? drm_atomic_helper_page_flip+0x3e/0xb0 [drm_kms_helper]
[ 3083.157145] ? drm_mode_page_flip_ioctl+0x7d2/0x850 [drm]
[ 3083.157159] ? drm_ioctl_kernel+0xa7/0xf0 [drm]
[ 3083.157172] ? drm_ioctl+0x45b/0x560 [drm]
[ 3083.157211] i915_gem_object_wait_priority+0x14c/0x2c0 [i915]
[ 3083.157251] ? i915_gem_get_aperture_ioctl+0x150/0x150 [i915]
[ 3083.157290] ? i915_vma_pin_fence+0x1d8/0x320 [i915]
[ 3083.157331] ? intel_pin_and_fence_fb_obj+0x175/0x250 [i915]
[ 3083.157372] ? intel_rotation_info_size+0x60/0x60 [i915]
[ 3083.157413] ? intel_link_compute_m_n+0x80/0x80 [i915]
[ 3083.157428] ? drm_dev_printk+0x1b0/0x1b0 [drm]
[ 3083.157443] ? drm_dev_printk+0x1b0/0x1b0 [drm]
[ 3083.157485] intel_prepare_plane_fb+0x2f8/0x5a0 [i915]
[ 3083.157527] ? intel_crtc_get_vblank_counter+0x80/0x80 [i915]
[ 3083.157536] drm_atomic_helper_prepare_planes+0xa0/0x1c0 [drm_kms_helper]
[ 3083.157587] intel_atomic_commit+0x12e/0x4e0 [i915]
[ 3083.157605] drm_atomic_helper_page_flip+0xa2/0xb0 [drm_kms_helper]
[ 3083.157621] drm_mode_page_flip_ioctl+0x7d2/0x850 [drm]
[ 3083.157638] ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
[ 3083.157652] ? drm_lease_owner+0x1a/0x30 [drm]
[ 3083.157668] ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
[ 3083.157681] drm_ioctl_kernel+0xa7/0xf0 [drm]
[ 3083.157696] drm_ioctl+0x45b/0x560 [drm]
[ 3083.157711] ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
[ 3083.157725] ? drm_getstats+0x20/0x20 [drm]
[ 3083.157729] ? timerqueue_del+0x49/0x80
[ 3083.157732] ? __remove_hrtimer+0x62/0xb0
[ 3083.157735] ? hrtimer_try_to_cancel+0x173/0x210
[ 3083.157738] do_vfs_ioctl+0x13b/0x880
[ 3083.157741] ? ioctl_preallocate+0x140/0x140
[ 3083.157744] ? _raw_spin_unlock_irq+0xe/0x30
[ 3083.157746] ? do_setitimer+0x234/0x370
[ 3083.157750] ? SyS_setitimer+0x19e/0x1b0
[ 3083.157752] ? SyS_alarm+0x140/0x140
[ 3083.157755] ? __rcu_read_unlock+0x66/0x80
[ 3083.157757] ? __fget+0xc4/0x100
[ 3083.157760] SyS_ioctl+0x74/0x80
[ 3083.157763] entry_SYSCALL_64_fastpath+0x1a/0x7d
[ 3083.157765] RIP: 0033:0x7f6135d0c6a7
[ 3083.157767] RSP: 002b:00007fff01451888 EFLAGS: 00003246 ORIG_RAX: 0000000000000010
[ 3083.157769] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6135d0c6a7
[ 3083.157771] RDX: 00007fff01451950 RSI: 00000000c01864b0 RDI: 000000000000000c
[ 3083.157772] RBP: 00007f613076f600 R08: 0000000000000001 R09: 0000000000000000
[ 3083.157773] R10: 0000000000000060 R11: 0000000000003246 R12: 0000000000000000
[ 3083.157774] R13: 0000000000000060 R14: 000000000000001b R15: 0000000000000060
[ 3083.157779] Allocated by task 831:
[ 3083.157783] kmem_cache_alloc+0xc0/0x200
[ 3083.157822] i915_gem_request_await_dma_fence+0x2c4/0x5d0 [i915]
[ 3083.157861] i915_gem_request_await_object+0x321/0x370 [i915]
[ 3083.157900] i915_gem_do_execbuffer+0x1165/0x19c0 [i915]
[ 3083.157937] i915_gem_execbuffer2+0x1ad/0x550 [i915]
[ 3083.157950] drm_ioctl_kernel+0xa7/0xf0 [drm]
[ 3083.157962] drm_ioctl+0x45b/0x560 [drm]
[ 3083.157964] do_vfs_ioctl+0x13b/0x880
[ 3083.157966] SyS_ioctl+0x74/0x80
[ 3083.157968] entry_SYSCALL_64_fastpath+0x1a/0x7d
[ 3083.157971] Freed by task 831:
[ 3083.157973] kmem_cache_free+0x77/0x220
[ 3083.158012] i915_gem_request_retire+0x72c/0xa70 [i915]
[ 3083.158051] i915_gem_request_alloc+0x1e9/0x8b0 [i915]
[ 3083.158089] i915_gem_do_execbuffer+0xa96/0x19c0 [i915]
[ 3083.158127] i915_gem_execbuffer2+0x1ad/0x550 [i915]
[ 3083.158140] drm_ioctl_kernel+0xa7/0xf0 [drm]
[ 3083.158153] drm_ioctl+0x45b/0x560 [drm]
[ 3083.158155] do_vfs_ioctl+0x13b/0x880
[ 3083.158156] SyS_ioctl+0x74/0x80
[ 3083.158158] entry_SYSCALL_64_fastpath+0x1a/0x7d
[ 3083.158162] The buggy address belongs to the object at ffff8806bf20f400
which belongs to the cache i915_dependency of size 64
[ 3083.158166] The buggy address is located 0 bytes inside of
64-byte region [ffff8806bf20f400, ffff8806bf20f440)
[ 3083.158168] The buggy address belongs to the page:
[ 3083.158171] page:00000000d43decc4 count:1 mapcount:0 mapping: (null) index:0x0
[ 3083.158174] flags: 0x17ffe0000000100(slab)
[ 3083.158179] raw: 017ffe0000000100 0000000000000000 0000000000000000 0000000180200020
[ 3083.158182] raw: ffffea001afc16c0 0000000500000005 ffff880731b881c0 0000000000000000
[ 3083.158184] page dumped because: kasan: bad access detected
[ 3083.158187] Memory state around the buggy address:
[ 3083.158190] ffff8806bf20f300: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 3083.158192] ffff8806bf20f380: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 3083.158195] >ffff8806bf20f400: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 3083.158196] ^
[ 3083.158199] ffff8806bf20f480: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 3083.158201] ffff8806bf20f500: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 3083.158203] ==================================================================
Reported-by: Alexandru Chirvasitu <achirvasub@gmail.com>
Reported-by: Mike Keehan <mike@keehan.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104436
Fixes: 1f181225f8ec ("drm/i915/execlists: Keep request->priority for its lifetime")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Alexandru Chirvasitu <achirvasub@gmail.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Tested-by: Alexandru Chirvasitu <achirvasub@gmail.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180106105618.13532-1-chris@chris-wilson.co.uk
(cherry picked from commit c218ee03b9315073ce43992792554dafa0626eb8)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
|
|
Geminilake requires the 3D driver to select whether barriers are
intended for compute shaders, or tessellation control shaders, by
whacking a "Barrier Mode" bit in SLICE_COMMON_ECO_CHICKEN1 when
switching pipelines. Failure to do this properly can result in GPU
hangs.
Unfortunately, this means it needs to switch mid-batch, so only
userspace can properly set it. To facilitate this, the kernel needs
to whitelist the register.
The workarounds page currently tags this as applying to Broxton only,
but that doesn't make sense. The documentation for the register it
references says the bit userspace is supposed to toggle only exists on
Geminilake. Empirically, the Mesa patch to toggle this bit appears to
fix intermittent GPU hangs in tessellation control shader barrier tests
on Geminilake; we haven't seen those hangs on Broxton.
v2: Mention WA #0862 in the comment (it doesn't have a name).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180105085905.9298-1-kenneth@whitecape.org
(cherry picked from commit ab062639edb0412daf6de540725276b9a5d217f9)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
|
|
Pull networking fixes from David Miller:
1) BPF speculation prevention and BPF_JIT_ALWAYS_ON, from Alexei
Starovoitov.
2) Revert dev_get_random_name() changes as adjust the error code
returns seen by userspace definitely breaks stuff.
3) Fix TX DMA map/unmap on older iwlwifi devices, from Emmanuel
Grumbach.
4) From wrong AF family when requesting sock diag modules, from Andrii
Vladyka.
5) Don't add new ipv6 routes attached to the null_entry, from Wei Wang.
6) Some SCTP sockopt length fixes from Marcelo Ricardo Leitner.
7) Don't leak when removing VLAN ID 0, from Cong Wang.
8) Hey there's a potential leak in ipv6_make_skb() too, from Eric
Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
ipv6: sr: fix TLVs not being copied using setsockopt
ipv6: fix possible mem leaks in ipv6_make_skb()
mlxsw: spectrum_qdisc: Don't use variable array in mlxsw_sp_tclass_congestion_enable
mlxsw: pci: Wait after reset before accessing HW
nfp: always unmask aux interrupts at init
8021q: fix a memory leak for VLAN 0 device
of_mdio: avoid MDIO bus removal when a PHY is missing
caif_usb: use strlcpy() instead of strncpy()
doc: clarification about setting SO_ZEROCOPY
net: gianfar_ptp: move set_fipers() to spinlock protecting area
sctp: make use of pre-calculated len
sctp: add a ceiling to optlen in some sockopts
sctp: GFP_ATOMIC is not needed in sctp_setsockopt_events
bpf: introduce BPF_JIT_ALWAYS_ON config
bpf: avoid false sharing of map refcount with max_entries
ipv6: remove null_entry before adding default route
SolutionEngine771x: add Ether TSU resource
SolutionEngine771x: fix Ether platform data
docs-rst: networking: wire up msg_zerocopy
net: ipv4: emulate READ_ONCE() on ->hdrincl bit-field in raw_sendmsg()
...
|
|
In the original code, we set "fd->uctxt" to NULL and then dereference it
which will cause an Oops.
Fixes: f2a3bc00a03c ("IB/hfi1: Protect context array set/clear with spinlock")
Cc: <stable@vger.kernel.org> # 4.14.x
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
|
|
In case we fail to establish the connection we must drain our pre-posted
login recieve work request before continuing safely with connection
teardown.
Fixes: a060b5629ab0 ("IB/core: generic RDMA READ/WRITE API")
Cc: <stable@vger.kernel.org> # 4.7+
Reported-by: Amrani, Ram <Ram.Amrani@cavium.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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