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[PATCH 4.2.y-ckt 158/218] ppp: take reference on channels netns

From Kamal Mostafa <kamal@canonical.com>
Newsgroups linux.kernel
Subject [PATCH 4.2.y-ckt 158/218] ppp: take reference on channels netns
Date 2016-03-31 22:50 +0200
Message-ID <riRHu-25a-43@gated-at.bofh.it> (permalink)
References <riReq-1PN-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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4.2.8-ckt7 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Guillaume Nault <g.nault@alphalink.fr>

commit 1f461dcdd296eecedaffffc6bae2bfa90bd7eb89 upstream.

Let channels hold a reference on their network namespace.
Some channel types, like ppp_async and ppp_synctty, can have their
userspace controller running in a different namespace. Therefore they
can't rely on them to preclude their netns from being removed from
under them.

==================================================================
BUG: KASAN: use-after-free in ppp_unregister_channel+0x372/0x3a0 at
addr ffff880064e217e0
Read of size 8 by task syz-executor/11581
=============================================================================
BUG net_namespace (Not tainted): kasan: bad access detected
-----------------------------------------------------------------------------

Disabling lock debugging due to kernel taint
INFO: Allocated in copy_net_ns+0x6b/0x1a0 age=92569 cpu=3 pid=6906
[<      none      >] ___slab_alloc+0x4c7/0x500 kernel/mm/slub.c:2440
[<      none      >] __slab_alloc+0x4c/0x90 kernel/mm/slub.c:2469
[<     inline     >] slab_alloc_node kernel/mm/slub.c:2532
[<     inline     >] slab_alloc kernel/mm/slub.c:2574
[<      none      >] kmem_cache_alloc+0x23a/0x2b0 kernel/mm/slub.c:2579
[<     inline     >] kmem_cache_zalloc kernel/include/linux/slab.h:597
[<     inline     >] net_alloc kernel/net/core/net_namespace.c:325
[<      none      >] copy_net_ns+0x6b/0x1a0 kernel/net/core/net_namespace.c:360
[<      none      >] create_new_namespaces+0x2f6/0x610 kernel/kernel/nsproxy.c:95
[<      none      >] copy_namespaces+0x297/0x320 kernel/kernel/nsproxy.c:150
[<      none      >] copy_process.part.35+0x1bf4/0x5760 kernel/kernel/fork.c:1451
[<     inline     >] copy_process kernel/kernel/fork.c:1274
[<      none      >] _do_fork+0x1bc/0xcb0 kernel/kernel/fork.c:1723
[<     inline     >] SYSC_clone kernel/kernel/fork.c:1832
[<      none      >] SyS_clone+0x37/0x50 kernel/kernel/fork.c:1826
[<      none      >] entry_SYSCALL_64_fastpath+0x16/0x7a kernel/arch/x86/entry/entry_64.S:185

INFO: Freed in net_drop_ns+0x67/0x80 age=575 cpu=2 pid=2631
[<      none      >] __slab_free+0x1fc/0x320 kernel/mm/slub.c:2650
[<     inline     >] slab_free kernel/mm/slub.c:2805
[<      none      >] kmem_cache_free+0x2a0/0x330 kernel/mm/slub.c:2814
[<     inline     >] net_free kernel/net/core/net_namespace.c:341
[<      none      >] net_drop_ns+0x67/0x80 kernel/net/core/net_namespace.c:348
[<      none      >] cleanup_net+0x4e5/0x600 kernel/net/core/net_namespace.c:448
[<      none      >] process_one_work+0x794/0x1440 kernel/kernel/workqueue.c:2036
[<      none      >] worker_thread+0xdb/0xfc0 kernel/kernel/workqueue.c:2170
[<      none      >] kthread+0x23f/0x2d0 kernel/drivers/block/aoe/aoecmd.c:1303
[<      none      >] ret_from_fork+0x3f/0x70 kernel/arch/x86/entry/entry_64.S:468
INFO: Slab 0xffffea0001938800 objects=3 used=0 fp=0xffff880064e20000
flags=0x5fffc0000004080
INFO: Object 0xffff880064e20000 @offset=0 fp=0xffff880064e24200

CPU: 1 PID: 11581 Comm: syz-executor Tainted: G    B           4.4.0+
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014
 00000000ffffffff ffff8800662c7790 ffffffff8292049d ffff88003e36a300
 ffff880064e20000 ffff880064e20000 ffff8800662c77c0 ffffffff816f2054
 ffff88003e36a300 ffffea0001938800 ffff880064e20000 0000000000000000
Call Trace:
 [<     inline     >] __dump_stack kernel/lib/dump_stack.c:15
 [<ffffffff8292049d>] dump_stack+0x6f/0xa2 kernel/lib/dump_stack.c:50
 [<ffffffff816f2054>] print_trailer+0xf4/0x150 kernel/mm/slub.c:654
 [<ffffffff816f875f>] object_err+0x2f/0x40 kernel/mm/slub.c:661
 [<     inline     >] print_address_description kernel/mm/kasan/report.c:138
 [<ffffffff816fb0c5>] kasan_report_error+0x215/0x530 kernel/mm/kasan/report.c:236
 [<     inline     >] kasan_report kernel/mm/kasan/report.c:259
 [<ffffffff816fb4de>] __asan_report_load8_noabort+0x3e/0x40 kernel/mm/kasan/report.c:280
 [<     inline     >] ? ppp_pernet kernel/include/linux/compiler.h:218
 [<ffffffff83ad71b2>] ? ppp_unregister_channel+0x372/0x3a0 kernel/drivers/net/ppp/ppp_generic.c:2392
 [<     inline     >] ppp_pernet kernel/include/linux/compiler.h:218
 [<ffffffff83ad71b2>] ppp_unregister_channel+0x372/0x3a0 kernel/drivers/net/ppp/ppp_generic.c:2392
 [<     inline     >] ? ppp_pernet kernel/drivers/net/ppp/ppp_generic.c:293
 [<ffffffff83ad6f26>] ? ppp_unregister_channel+0xe6/0x3a0 kernel/drivers/net/ppp/ppp_generic.c:2392
 [<ffffffff83ae18f3>] ppp_asynctty_close+0xa3/0x130 kernel/drivers/net/ppp/ppp_async.c:241
 [<ffffffff83ae1850>] ? async_lcp_peek+0x5b0/0x5b0 kernel/drivers/net/ppp/ppp_async.c:1000
 [<ffffffff82c33239>] tty_ldisc_close.isra.1+0x99/0xe0 kernel/drivers/tty/tty_ldisc.c:478
 [<ffffffff82c332c0>] tty_ldisc_kill+0x40/0x170 kernel/drivers/tty/tty_ldisc.c:744
 [<ffffffff82c34943>] tty_ldisc_release+0x1b3/0x260 kernel/drivers/tty/tty_ldisc.c:772
 [<ffffffff82c1ef21>] tty_release+0xac1/0x13e0 kernel/drivers/tty/tty_io.c:1901
 [<ffffffff82c1e460>] ? release_tty+0x320/0x320 kernel/drivers/tty/tty_io.c:1688
 [<ffffffff8174de36>] __fput+0x236/0x780 kernel/fs/file_table.c:208
 [<ffffffff8174e405>] ____fput+0x15/0x20 kernel/fs/file_table.c:244
 [<ffffffff813595ab>] task_work_run+0x16b/0x200 kernel/kernel/task_work.c:115
 [<     inline     >] exit_task_work kernel/include/linux/task_work.h:21
 [<ffffffff81307105>] do_exit+0x8b5/0x2c60 kernel/kernel/exit.c:750
 [<ffffffff813fdd20>] ? debug_check_no_locks_freed+0x290/0x290 kernel/kernel/locking/lockdep.c:4123
 [<ffffffff81306850>] ? mm_update_next_owner+0x6f0/0x6f0 kernel/kernel/exit.c:357
 [<ffffffff813215e6>] ? __dequeue_signal+0x136/0x470 kernel/kernel/signal.c:550
 [<ffffffff8132067b>] ? recalc_sigpending_tsk+0x13b/0x180 kernel/kernel/signal.c:145
 [<ffffffff81309628>] do_group_exit+0x108/0x330 kernel/kernel/exit.c:880
 [<ffffffff8132b9d4>] get_signal+0x5e4/0x14f0 kernel/kernel/signal.c:2307
 [<     inline     >] ? kretprobe_table_lock kernel/kernel/kprobes.c:1113
 [<ffffffff8151d355>] ? kprobe_flush_task+0xb5/0x450 kernel/kernel/kprobes.c:1158
 [<ffffffff8115f7d3>] do_signal+0x83/0x1c90 kernel/arch/x86/kernel/signal.c:712
 [<ffffffff8151d2a0>] ? recycle_rp_inst+0x310/0x310 kernel/include/linux/list.h:655
 [<ffffffff8115f750>] ? setup_sigcontext+0x780/0x780 kernel/arch/x86/kernel/signal.c:165
 [<ffffffff81380864>] ? finish_task_switch+0x424/0x5f0 kernel/kernel/sched/core.c:2692
 [<     inline     >] ? finish_lock_switch kernel/kernel/sched/sched.h:1099
 [<ffffffff81380560>] ? finish_task_switch+0x120/0x5f0 kernel/kernel/sched/core.c:2678
 [<     inline     >] ? context_switch kernel/kernel/sched/core.c:2807
 [<ffffffff85d794e9>] ? __schedule+0x919/0x1bd0 kernel/kernel/sched/core.c:3283
 [<ffffffff81003901>] exit_to_usermode_loop+0xf1/0x1a0 kernel/arch/x86/entry/common.c:247
 [<     inline     >] prepare_exit_to_usermode kernel/arch/x86/entry/common.c:282
 [<ffffffff810062ef>] syscall_return_slowpath+0x19f/0x210 kernel/arch/x86/entry/common.c:344
 [<ffffffff85d88022>] int_ret_from_sys_call+0x25/0x9f kernel/arch/x86/entry/entry_64.S:281
Memory state around the buggy address:
 ffff880064e21680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff880064e21700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff880064e21780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                       ^
 ffff880064e21800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff880064e21880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

Fixes: 273ec51dd7ce ("net: ppp_generic - introduce net-namespace functionality v2")
Reported-by: Baozeng Ding <sploving1@gmail.com>
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/net/ppp/ppp_generic.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index e82b43c..6fc526b 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -2277,7 +2277,7 @@ int ppp_register_net_channel(struct net *net, struct ppp_channel *chan)
 
 	pch->ppp = NULL;
 	pch->chan = chan;
-	pch->chan_net = net;
+	pch->chan_net = get_net(net);
 	chan->ppp = pch;
 	init_ppp_file(&pch->file, CHANNEL);
 	pch->file.hdrlen = chan->hdrlen;
@@ -2374,6 +2374,8 @@ ppp_unregister_channel(struct ppp_channel *chan)
 	spin_lock_bh(&pn->all_channels_lock);
 	list_del(&pch->list);
 	spin_unlock_bh(&pn->all_channels_lock);
+	put_net(pch->chan_net);
+	pch->chan_net = NULL;
 
 	pch->file.dead = 1;
 	wake_up_interruptible(&pch->file.rwait);
-- 
2.7.4

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  [PATCH 4.2.y-ckt 137/218] writeback, cgroup: fix premature wb_put() in locked_inode_to_wb_and_lock_list() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 138/218] fs-writeback: unplug before cond_resched in writeback_sb_inodes Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 150/218] MAINTAINERS: Update mailing list and web page for hwmon subsystem Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 132/218] USB: uas: Reduce can_queue to MAX_CMNDS Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 134/218] tracing: Fix crash from reading trace_pipe with sendfile Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 143/218] KVM: fix spin_lock_init order on x86 Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 149/218] ideapad-laptop: Add ideapad Y700 (15) to the no_hw_rfkill DMI list Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 155/218] clk: xgene: Add missing parenthesis when clearing divider value Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 139/218] writeback, cgroup: fix use of the wrong bdi_writeback which mismatches the inode Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 144/218] tracing: Fix trace_printk() to print when not using bprintk() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 146/218] rapidio/rionet: fix deadlock on SMP Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 158/218] ppp: take reference on channels netns Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 130/218] x86/apic: Fix suspicious RCU usage in smp_trace_call_function_interrupt() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 136/218] ALSA: usb-audio: add Microsoft HD-5001 to quirks Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 131/218] USB: usb_driver_claim_interface: add sanity checking Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 148/218] staging: android: ion_test: fix check of platform_device_register_simple() error code Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 157/218] xen kconfig: don't "select INPUT_XEN_KBDDEV_FRONTEND" Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 147/218] staging: comedi: ni_mio_common: fix the ni_write[blw]() functions Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 142/218] KVM: VMX: avoid guest hang on invalid invept instruction Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 126/218] watchdog: don't run proc_watchdog_update if new value is same as old Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 135/218] splice: handle zero nr_pages in splice_to_pipe() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 129/218] Input: synaptics - handle spurious release of trackstick buttons, again Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 120/218] vfs: show_vfsstat: do not ignore errors from show_devname method Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 160/218] clk: rockchip: free memory in error cases when registering clock branches Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 127/218] mm: memcontrol: reclaim when shrinking memory.high below usage Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 156/218] clk: qcom: msm8960: Fix ce3_src register offset Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 152/218] ocfs2/dlm: fix BUG in dlm_move_lockres_to_recovery_list Kamal Mostafa <kamal@canonical.com> - 2016-03-31 22:50 +0200
  [PATCH 4.2.y-ckt 114/218] net: mvneta: enable change MAC address when interface is up Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 105/218] Bluetooth: Fix potential buffer overflow with Add Advertising Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 104/218] xtensa: clear all DBREAKC registers on start Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 119/218] nfsd: fix deadlock secinfo+readdir compound Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 079/218] perf/x86/intel: Use PAGE_SIZE for PEBS buffer size on Core2 Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 089/218] sg: fix dxferp in from_to case Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 110/218] fuse: Add reference counting for fuse_io_priv Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 106/218] ARC: [BE] readl()/writel() to work in Big Endian CPU configuration Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 118/218] mmc: mmc_spi: Add Card Detect comments and fix CD GPIO case Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 091/218] ALSA: hda - Apply reboot D3 fix for CX20724 codec, too Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 102/218] xtensa: ISS: don't hang if stdin EOF is reached Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 092/218] EDAC/sb_edac: Fix computation of channel address Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 108/218] ALSA: intel8x0: Add clock quirk entry for AD1981B on IBM ThinkPad X41. Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 080/218] perf/x86/intel: Fix PEBS warning by only restoring active PMU in pmi Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 123/218] mmc: sdhci: Fix override of timeout clk wrt max_busy_timeout Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 117/218] ALSA: hda - Fix unconditional GPIO toggle via automute Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 128/218] mm: memcontrol: reclaim and OOM kill when shrinking memory.max below usage Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 109/218] fuse: do not use iocb after it may have been freed Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 101/218] ALSA: hda - fix the mic mute button and led problem for a Lenovo AIO Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 115/218] dm: fix rq_end_stats() NULL pointer in dm_requeue_original_request() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 107/218] bus: imx-weim: Take the 'status' property value into account Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 103/218] xtensa: fix preemption in {clear,copy}_user_highpage Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 097/218] dm cache: make sure every metadata function checks fail_io Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 112/218] drm/radeon: rework fbdev handling on chips with no connectors Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 111/218] s390/pci: enforce fmb page boundary rule Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 116/218] HID: i2c-hid: fix OOB write in i2c_hid_set_or_send_report() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:00 +0200
  [PATCH 4.2.y-ckt 083/218] bcache: cleaned up error handling around register_cache() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 072/218] usb: hub: fix a typo in hub_port_init() leading to wrong logic Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 088/218] drm/radeon: Don't drop DP 2.7 Ghz link setup on some cards. Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 087/218] md/raid5: preserve STRIPE_PREREAD_ACTIVE in break_stripe_batch_list Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 093/218] Bluetooth: btusb: Add a new AR3012 ID 13d3:3472 Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 099/218] iser-target: Add new state ISER_CONN_BOUND to isert_conn Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 100/218] iser-target: Separate flows for np listeners and connections cma events Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 065/218] mtip32xx: Remove unwanted code from taskfile error handler Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 090/218] jbd2: fix FS corruption possibility in jbd2_journal_destroy() on umount path Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 071/218] of: alloc anywhere from memblock if range not specified Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 067/218] mtip32xx: Avoid issuing standby immediate cmd during FTL rebuild Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 096/218] dm thin metadata: don't issue prefetches if a transaction abort has failed Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 077/218] pinctrl-bcm2835: Fix cut-and-paste error in "pull" parsing Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 066/218] mtip32xx: Print exact time when an internal command is interrupted Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 094/218] ALSA: pcm: Avoid "BUG:" string for warnings again Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 085/218] x86/PCI: Mark Broadwell-EP Home Agent & PCU as having non-compliant BARs Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 070/218] mtip32xx: Handle FTL rebuild failure state during device initialization Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 073/218] KVM: i8254: change PIT discard tick policy Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 098/218] iser-target: Fix identification of login rx descriptor type Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 078/218] perf/core: Fix perf_sched_count derailment Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 064/218] mtip32xx: Fix broken service thread handling Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 074/218] sched/cputime: Fix steal time accounting vs. CPU hotplug Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 069/218] mtip32xx: Handle safe removal during IO Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 082/218] bcache: fix race of writeback thread starting before complete initialization Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 095/218] dm snapshot: disallow the COW and origin devices from being identical Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 081/218] sched/cputime: Fix steal_account_process_tick() to always return jiffies Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:10 +0200
  [PATCH 4.2.y-ckt 050/218] md/raid5: Compare apples to apples (or sectors to sectors) Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 042/218] perf tools: Dont stop PMU parsing on alias parse error Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 036/218] usb: retry reset if a device times out Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 049/218] PCI: Disable IO/MEM decoding for devices with non-compliant BARs Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 034/218] tpm: fix the cleanup of struct tpm_chip Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 028/218] net: irda: Fix use-after-free in irtty_open() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 061/218] nfsd4: fix bad bounds checking Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 053/218] crypto: ccp - memset request context to zero during import Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 041/218] tpm_crb: tpm2_shutdown() must be called before tpm_chip_unregister() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 051/218] RAID5: check_reshape() shouldn't call mddev_suspend Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 060/218] watchdog: rc32434_wdt: fix ioctl error handling Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 026/218] crypto: ccp - Don't assume export/import areas are aligned Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 035/218] ARM: dts: armada-375: use armada-370-sata for SATA Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 057/218] perf tools: Fix python extension build Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 063/218] quota: Fix possible GPF due to uninitialised pointers Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 062/218] xfs: fix two memory leaks in xfs_attr_list.c error paths Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 054/218] Bluetooth: btusb: Add a new AR3012 ID 04ca:3014 Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 068/218] mtip32xx: Fix for rmmod crash when drive is in FTL rebuild Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 058/218] IB/srpt: Simplify srpt_handle_tsk_mgmt() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 043/218] Bluetooth: btusb: Add new AR3012 ID 13d3:3395 Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 052/218] RAID5: revert e9e4c377e2f563 to fix a livelock Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 038/218] scripts/coccinelle: modernize & Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 047/218] aic7xxx: Fix queue depth handling Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 055/218] mmc: sdhci: fix data timeout (part 1) Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 048/218] mtd: onenand: fix deadlock in onenand_block_markbad Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 056/218] mmc: sdhci: fix data timeout (part 2) Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 040/218] [media] saa7134: Fix bytesperline not being set correctly for planar formats Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 037/218] HID: fix hid_ignore_special_drivers module parameter Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 044/218] Bluetooth: Add new AR3012 ID 0489:e095 Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 045/218] aacraid: Fix RRQ overload Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 032/218] tools/hv: Use include/uapi with __EXPORTED_HEADERS__ Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:20 +0200
  [PATCH 4.2.y-ckt 019/218] clk: rockchip: add pclk_cpu to the list of rk3188 critical clocks Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 011/218] ALSA: usb-audio: Fix NULL dereference in create_fixed_stream_quirk() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 031/218] staging: comedi: ni_tiocmd: change mistaken use of start_src for start_arg Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 024/218] [media] pwc: Add USB id for Philips Spc880nc webcam Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 012/218] ALSA: usb-audio: Add sanity checks for endpoint accesses Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 015/218] USB: cdc-acm: more sanity checking Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 029/218] mei: bus: fix drivers and devices names confusion Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 004/218] crypto: algif_skcipher - Do not dereference ctx without socket lock Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 027/218] 8250: use callbacks to access UART_DLL/UART_DLM Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 001/218] crypto: skcipher - Add crypto_skcipher_has_setkey Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 018/218] crypto: ccp - Add hash state import and export support Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 030/218] mei: bus: check if the device is enabled before data transfer Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 016/218] drm/i915: Workaround CHV pipe C cursor fail Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 022/218] tty: Fix GPF in flush_to_ldisc(), part 2 Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 008/218] ipv4: Don't do expensive useless work during inetdev destroy. Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 014/218] Input: ati_remote2 - fix crashes on detecting device with invalid descriptor Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 033/218] tpm: fix the rollback in tpm_chip_register() Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 006/218] gpio: add a data pointer to gpio_chip Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 020/218] clk: rockchip: Add pclk_peri to critical clocks on RK3066/RK3188 Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 010/218] USB: iowarrior: fix oops with malicious USB descriptors Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 021/218] clk: rockchip: add hclk_cpubus to the list of rk3188 critical clocks Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 005/218] gpiolib: do not allow to insert an empty gpiochip Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 007/218] gpio: rcar: Add Runtime PM handling for interrupts Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 023/218] [media] media: v4l2-compat-ioctl32: fix missing length copy in put_v4l2_buffer32 Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 002/218] crypto: algif_skcipher - Add key check exception for cipher_null Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200
  [PATCH 4.2.y-ckt 025/218] crypto: ccp - Limit the amount of information exported Kamal Mostafa <kamal@canonical.com> - 2016-03-31 23:30 +0200

csiph-web