- 09 May, 2015 40 commits
-
-
Dave Jones authored
commit 7a20c2fa upstream. This seems to have been copied from the Optiplex 990 entry above, but somoene forgot to change the ident text. Signed-off-by:
Dave Jones <davej@fedoraproject.org> Link: http://lkml.kernel.org/r/20130925001344.GA13554@redhat.comSigned-off-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
Ben Hutchings <ben@decadent.org.uk>
-
Masoud Sharbiani authored
commit 4f0acd31 upstream. Dell PowerEdge C6100 machines fail to completely reboot about 20% of the time. Signed-off-by:
Masoud Sharbiani <msharbiani@twitter.com> Signed-off-by:
Vinson Lee <vlee@twitter.com> Cc: Robin Holt <holt@sgi.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Link: http://lkml.kernel.org/r/1379717947-18042-1-git-send-email-vlee@freedesktop.orgSigned-off-by:
-
David Hooper authored
commit fcd8af58 upstream. Remove the quirk for the SBC FITPC. It seems ot have been required when the default was kbd reboot, but no longer required now that the default is acpi reboot. Furthermore, BIOS reboot no longer works for this board as of 2.6.39 or any of the 3.x kernels. Signed-off-by:
David Hooper <dave@beermex.com> Signed-off-by:
Alan Cox <alan@linux.intel.com> Link: http://lkml.kernel.org/r/20121002142635.17403.59959.stgit@localhost.localdomainSigned-off-by:
-
Zhang Rui authored
commit 76eb9a30 upstream. Dell Precision M6600 is known to require PCI reboot, so add it to the reboot blacklist in pci_reboot_dmi_table[]. https://bugzilla.kernel.org/show_bug.cgi?id=42749 cc: x86@kernel.org Signed-off-by:
Zhang Rui <rui.zhang@intel.com> Signed-off-by:
Len Brown <len.brown@intel.com> Signed-off-by:
-
Michael D Labriola authored
commit e6d36a65 upstream. This commit removes the reboot quirk originally added by commit e19e074b ("x86: Fix reboot problem on VersaLogic Menlow boards"). Testing with a VersaLogic Ocelot (VL-EPMs-21a rev 1.00 w/ BIOS 6.5.102) revealed the following regarding the reboot hang problem: - v2.6.37 reboot=bios was needed. - v2.6.38-rc1: behavior changed, reboot=acpi is needed, reboot=kbd and reboot=bios results in system hang. - v2.6.38: VersaLogic patch (e19e074b "x86: Fix reboot problem on VersaLogic Menlow boards") was applied prior to v2.6.38-rc7. This patch sets a quirk for VersaLogic Menlow boards that forces the use of reboot=bios, which doesn't work anymore. - v3.2: It seems that commit 660e34ce ("x86: Reorder reboot method preferences") changed the default reboot method to acpi prior to v3.0-rc1, which means the default behavior is appropriate for the Ocelot. No VersaLogic quirk is required. The Ocelot board used for testing can successfully reboot w/out having to pass any reboot= arguments for all 3 current versions of the BIOS. Signed-off-by:
Michael D Labriola <michael.d.labriola@gmail.com> Cc: Matthew Garrett <mjg@redhat.com> Cc: Michael D Labriola <mlabriol@gdeb.com> Cc: Kushal Koolwal <kushalkoolwal@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/87vcnub9hu.fsf@gmail.comSigned-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
-
David Miller authored
commit f2c9e560 upstream. Use readb() and memcpy_fromio() accessors instead. Reviewed-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
-
Hui Wang authored
commit af95b414 upstream. We have a HP machine which use the codec node 0x17 connecting the internal speaker, and from the node capability, we saw the EAPD, if we don't set the EAPD on for this node, the internal speaker can't output any sound. BugLink: https://bugs.launchpad.net/bugs/1436745Signed-off-by:
Hui Wang <hui.wang@canonical.com> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
-
Sergei Antonov authored
commit 98cf21c6 upstream. Fix B-tree corruption when a new record is inserted at position 0 in the node in hfs_brec_insert(). In this case a hfs_brec_update_parent() is called to update the parent index node (if exists) and it is passed hfs_find_data with a search_key containing a newly inserted key instead of the key to be updated. This results in an inconsistent index node. The bug reproduces on my machine after an extents overflow record for the catalog file (CNID=4) is inserted into the extents overflow B-tree. Because of a low (reserved) value of CNID=4, it has to become the first record in the first leaf node. The resulting first leaf node is correct: ---------------------------------------------------- | key0.CNID=4 | key1.CNID=123 | key2.CNID=456, ... | ---------------------------------------------------- But the parent index key0 still contains the previous key CNID=123: ----------------------- | key0.CNID=123 | ... | ----------------------- A change in hfs_brec_insert() makes hfs_brec_update_parent() work correctly by preventing it from getting fd->record=-1 value from __hfs_brec_find(). Along the way, I removed duplicate code with unification of the if condition. The resulting code is equivalent to the original code because node is never 0. Also hfs_brec_update_parent() will now return an error after getting a negative fd->record value. However, the return value of hfs_brec_update_parent() is not checked anywhere in the file and I'm leaving it unchanged by this patch. brec.c lacks error checking after some other calls too, but this issue is of less importance than the one being fixed by this patch. Signed-off-by:
Sergei Antonov <saproj@gmail.com> Cc: Joe Perches <joe@perches.com> Reviewed-by:
Vyacheslav Dubeyko <slava@dubeyko.com> Acked-by:
Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Anton Altaparmakov <aia21@cam.ac.uk> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> [bwh: Backported to 3.2: adjust context] Signed-off-by:
-
Leon Yu authored
commit 3fe89b3e upstream. I have constantly stumbled upon "kernel BUG at mm/rmap.c:399!" after upgrading to 3.19 and had no luck with 4.0-rc1 neither. So, after looking into new logic introduced by commit 7a3ef208 ("mm: prevent endless growth of anon_vma hierarchy"), I found chances are that unlink_anon_vmas() is called without incrementing dst->anon_vma->degree in anon_vma_clone() due to allocation failure. If dst->anon_vma is not NULL in error path, its degree will be incorrectly decremented in unlink_anon_vmas() and eventually underflow when exiting as a result of another call to unlink_anon_vmas(). That's how "kernel BUG at mm/rmap.c:399!" is triggered for me. This patch fixes the underflow by dropping dst->anon_vma when allocation fails. It's safe to do so regardless of original value of dst->anon_vma because dst->anon_vma doesn't have valid meaning if anon_vma_clone() fails. Besides, callers don't care dst->anon_vma in such case neither. Also suggested by Michal Hocko, we can clean up vma_adjust() a bit as anon_vma_clone() now does the work. [akpm@linux-foundation.org: tweak comment] Fixes: 7a3ef208 ("mm: prevent endless growth of anon_vma hierarchy") Signed-off-by:
Leon Yu <chianglungyu@gmail.com> Signed-off-by:
Konstantin Khlebnikov <koct9i@gmail.com> Reviewed-by:
Michal Hocko <mhocko@suse.cz> Acked-by:
Rik van Riel <riel@redhat.com> Acked-by:
David Rientjes <rientjes@google.com> Signed-off-by:
-
Joe Perches authored
commit 6436a123 upstream. Return a negative error value like the rest of the entries in this function. Signed-off-by:
Joe Perches <joe@perches.com> Acked-by:
Stephen Smalley <sds@tycho.nsa.gov> [PM: tweaked subject line] Signed-off-by:
Paul Moore <pmoore@redhat.com> Signed-off-by:
-
Doug Goldstein authored
commit b229a0f8 upstream. This patch uses the existing CALAO Systems ftdi_8u2232c_probe in order to avoid attaching a TTY to the JTAG port as this board is based on the CALAO Systems reference design and needs the same fix up. Signed-off-by:
Doug Goldstein <cardoe@cardoe.com> [johan: clean up probe logic ] Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
-
WANG Cong authored
commit d079535d upstream. In case we move the whole dev group to another netns, we should call for_each_netdev_safe(), otherwise we get a soft lockup: NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [ip:798] irq event stamp: 255424 hardirqs last enabled at (255423): [<ffffffff81a2aa95>] restore_args+0x0/0x30 hardirqs last disabled at (255424): [<ffffffff81a2ad5a>] apic_timer_interrupt+0x6a/0x80 softirqs last enabled at (255422): [<ffffffff81079ebc>] __do_softirq+0x2c1/0x3a9 softirqs last disabled at (255417): [<ffffffff8107a190>] irq_exit+0x41/0x95 CPU: 0 PID: 798 Comm: ip Not tainted 4.0.0-rc4+ #881 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 task: ffff8800d1b88000 ti: ffff880119530000 task.ti: ffff880119530000 RIP: 0010:[<ffffffff810cad11>] [<ffffffff810cad11>] debug_lockdep_rcu_enabled+0x28/0x30 RSP: 0018:ffff880119533778 EFLAGS: 00000246 RAX: ffff8800d1b88000 RBX: 0000000000000002 RCX: 0000000000000038 RDX: 0000000000000000 RSI: ffff8800d1b888c8 RDI: ffff8800d1b888c8 RBP: ffff880119533778 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 000000000000b5c2 R12: 0000000000000246 R13: ffff880119533708 R14: 00000000001d5a40 R15: ffff88011a7d5a40 FS: 00007fc01315f740(0000) GS:ffff88011a600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f367a120988 CR3: 000000011849c000 CR4: 00000000000007f0 Stack: ffff880119533798 ffffffff811ac868 ffffffff811ac831 ffffffff811ac828 ffff8801195337c8 ffffffff811ac8c9 ffff8801195339b0 ffff8801197633e0 0000000000000000 ffff8801195339b0 ffff8801195337d8 ffffffff811ad2d7 Call Trace: [<ffffffff811ac868>] rcu_read_lock+0x37/0x6e [<ffffffff811ac831>] ? rcu_read_unlock+0x5f/0x5f [<ffffffff811ac828>] ? rcu_read_unlock+0x56/0x5f [<ffffffff811ac8c9>] __fget+0x2a/0x7a [<ffffffff811ad2d7>] fget+0x13/0x15 [<ffffffff811be732>] proc_ns_fget+0xe/0x38 [<ffffffff817c7714>] get_net_ns_by_fd+0x11/0x59 [<ffffffff817df359>] rtnl_link_get_net+0x33/0x3e [<ffffffff817df3d7>] do_setlink+0x73/0x87b [<ffffffff810b28ce>] ? trace_hardirqs_off+0xd/0xf [<ffffffff81a2aa95>] ? retint_restore_args+0xe/0xe [<ffffffff817e0301>] rtnl_newlink+0x40c/0x699 [<ffffffff817dffe0>] ? rtnl_newlink+0xeb/0x699 [<ffffffff81a29246>] ? _raw_spin_unlock+0x28/0x33 [<ffffffff8143ed1e>] ? security_capable+0x18/0x1a [<ffffffff8107da51>] ? ns_capable+0x4d/0x65 [<ffffffff817de5ce>] rtnetlink_rcv_msg+0x181/0x194 [<ffffffff817de407>] ? rtnl_lock+0x17/0x19 [<ffffffff817de407>] ? rtnl_lock+0x17/0x19 [<ffffffff817de44d>] ? __rtnl_unlock+0x17/0x17 [<ffffffff818327c6>] netlink_rcv_skb+0x4d/0x93 [<ffffffff817de42f>] rtnetlink_rcv+0x26/0x2d [<ffffffff81830f18>] netlink_unicast+0xcb/0x150 [<ffffffff8183198e>] netlink_sendmsg+0x501/0x523 [<ffffffff8115cba9>] ? might_fault+0x59/0xa9 [<ffffffff817b5398>] ? copy_from_user+0x2a/0x2c [<ffffffff817b7b74>] sock_sendmsg+0x34/0x3c [<ffffffff817b7f6d>] ___sys_sendmsg+0x1b8/0x255 [<ffffffff8115c5eb>] ? handle_pte_fault+0xbd5/0xd4a [<ffffffff8100a2b0>] ? native_sched_clock+0x35/0x37 [<ffffffff8109e94b>] ? sched_clock_local+0x12/0x72 [<ffffffff8109eb9c>] ? sched_clock_cpu+0x9e/0xb7 [<ffffffff810cadbf>] ? rcu_read_lock_held+0x3b/0x3d [<ffffffff811ac1d8>] ? __fcheck_files+0x4c/0x58 [<ffffffff811ac946>] ? __fget_light+0x2d/0x52 [<ffffffff817b8adc>] __sys_sendmsg+0x42/0x60 [<ffffffff817b8b0c>] SyS_sendmsg+0x12/0x1c [<ffffffff81a29e32>] system_call_fastpath+0x12/0x17 Fixes: e7ed828f ("netlink: support setting devgroup parameters") Signed-off-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
-
Lu Baolu authored
commit 227a4fd8 upstream. When a device with an isochronous endpoint is plugged into the Intel xHCI host controller, and the driver submits multiple frames per URB, the xHCI driver will set the Block Event Interrupt (BEI) flag on all but the last TD for the URB. This causes the host controller to place an event on the event ring, but not send an interrupt. When the last TD for the URB completes, BEI is cleared, and we get an interrupt for the whole URB. However, under Intel xHCI host controllers, if the event ring is full of events from transfers with BEI set, an "Event Ring is Full" event will be posted to the last entry of the event ring, but no interrupt is generated. Host will cease all transfer and command executions and wait until software completes handling the pending events in the event ring. That means xHC stops, but event of "event ring is full" is not notified. As the result, the xHC looks like dead to user. This patch is to apply XHCI_AVOID_BEI quirk to Intel xHC devices. And it should be backported to kernels as old as 3.0, that contains the commit 69e848c2 ("Intel xhci: Support EHCI/xHCI port switching."). Signed-off-by:
Lu Baolu <baolu.lu@linux.intel.com> Tested-by:
Alistair Grant <akgrant0710@gmail.com> Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> [bwh: Backported to 3.2: adjust context] Signed-off-by:
-
Lu Baolu authored
commit 9425183d upstream. Linux xHCI driver doesn't report and handle port cofig error change. If Port Configure Error for root hub port occurs, CEC bit in PORTSC would be set by xHC and remains 1. This happends when the root port fails to configure its link partner, e.g. the port fails to exchange port capabilities information using Port Capability LMPs. Then the Port Status Change Events will be blocked until all status change bits(CEC is one of the change bits) are cleared('0') (refer to xHCI spec 4.19.2). Otherwise, the port status change event for this root port will not be generated anymore, then root port would look like dead for user and can't be recovered until a Host Controller Reset(HCRST). This patch is to check CEC bit in PORTSC in xhci_get_port_status() and set a Config Error in the return status if CEC is set. This will cause a ClearPortFeature request, where CEC bit is cleared in xhci_clear_port_change_bit(). [The commit log is based on initial Marvell patch posted at http://marc.info/?l=linux-kernel&m=142323612321434&w=2] Reported-by:
Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by:
-
Tejun Heo authored
commit c72efb65 upstream. From 1ebf33901ecc75d9496862dceb1ef0377980587c Mon Sep 17 00:00:00 2001 From: Tejun Heo <tj@kernel.org> Date: Mon, 23 Mar 2015 00:08:19 -0400 2f800fbd ("writeback: fix dirtied pages accounting on redirty") introduced account_page_redirty() which reverts stat updates for a redirtied page, making BDI_DIRTIED no longer monotonically increasing. bdi_update_write_bandwidth() uses the delta in BDI_DIRTIED as the basis for bandwidth calculation. While unlikely, since the above patch, the newer value may be lower than the recorded past value and underflow the bandwidth calculation leading to a wild result. Fix it by subtracing min of the old and new values when calculating delta. AFAIK, there hasn't been any report of it happening but the resulting erratic behavior would be non-critical and temporary, so it's possible that the issue is happening without being reported. The risk of the fix is very low, so tagged for -stable. Signed-off-by:
Tejun Heo <tj@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Jan Kara <jack@suse.cz> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Greg Thelen <gthelen@google.com> Fixes: 2f800fbd ("writeback: fix dirtied pages accounting on redirty") Signed-off-by:
Jens Axboe <axboe@fb.com> Signed-off-by:
-
Brian Silverman authored
commit 746db944 upstream. When non-realtime tasks get priority-inheritance boosted to a realtime scheduling class, RLIMIT_RTTIME starts to apply to them. However, the counter used for checking this (the same one used for SCHED_RR timeslices) was not getting reset. This meant that tasks running with a non-realtime scheduling class which are repeatedly boosted to a realtime one, but never block while they are running realtime, eventually hit the timeout without ever running for a time over the limit. This patch resets the realtime timeslice counter when un-PI-boosting from an RT to a non-RT scheduling class. I have some test code with two threads and a shared PTHREAD_PRIO_INHERIT mutex which induces priority boosting and spins while boosted that gets killed by a SIGXCPU on non-fixed kernels but doesn't with this patch applied. It happens much faster with a CONFIG_PREEMPT_RT kernel, and does happen eventually with PREEMPT_VOLUNTARY kernels. Signed-off-by:
Brian Silverman <brian@peloton-tech.com> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: austin@peloton-tech.com Link: http://lkml.kernel.org/r/1424305436-6716-1-git-send-email-brian@peloton-tech.comSigned-off-by:
-
Peter Zijlstra authored
commit d525211f upstream. Vince reported a watchdog lockup like: [<ffffffff8115e114>] perf_tp_event+0xc4/0x210 [<ffffffff810b4f8a>] perf_trace_lock+0x12a/0x160 [<ffffffff810b7f10>] lock_release+0x130/0x260 [<ffffffff816c7474>] _raw_spin_unlock_irqrestore+0x24/0x40 [<ffffffff8107bb4d>] do_send_sig_info+0x5d/0x80 [<ffffffff811f69df>] send_sigio_to_task+0x12f/0x1a0 [<ffffffff811f71ce>] send_sigio+0xae/0x100 [<ffffffff811f72b7>] kill_fasync+0x97/0xf0 [<ffffffff8115d0b4>] perf_event_wakeup+0xd4/0xf0 [<ffffffff8115d103>] perf_pending_event+0x33/0x60 [<ffffffff8114e3fc>] irq_work_run_list+0x4c/0x80 [<ffffffff8114e448>] irq_work_run+0x18/0x40 [<ffffffff810196af>] smp_trace_irq_work_interrupt+0x3f/0xc0 [<ffffffff816c99bd>] trace_irq_work_interrupt+0x6d/0x80 Which is caused by an irq_work generating new irq_work and therefore not allowing forward progress. This happens because processing the perf irq_work triggers another perf event (tracepoint stuff) which in turn generates an irq_work ad infinitum. Avoid this by raising the recursion counter in the irq_work -- which effectively disables all software events (including tracepoints) from actually triggering again. Reported-by:
Vince Weaver <vincent.weaver@maine.edu> Tested-by:
-
David Disseldorp authored
commit e1e9bda2 upstream. Under intermittent network outages, find_writable_file() is susceptible to the following race condition, which results in a user-after-free in the cifs_writepages code-path: Thread 1 Thread 2 ======== ======== inv_file = NULL refind = 0 spin_lock(&cifs_file_list_lock) // invalidHandle found on openFileList inv_file = open_file // inv_file->count currently 1 cifsFileInfo_get(inv_file) // inv_file->count = 2 spin_unlock(&cifs_file_list_lock); cifs_reopen_file() cifs_close() // fails (rc != 0) ->cifsFileInfo_put() spin_lock(&cifs_file_list_lock) // inv_file->count = 1 spin_unlock(&cifs_file_list_lock) spin_lock(&cifs_file_list_lock); list_move_tail(&inv_file->flist, &cifs_inode->openFileList); spin_unlock(&cifs_file_list_lock); cifsFileInfo_put(inv_file); ->spin_lock(&cifs_file_list_lock) // inv_file->count = 0 list_del(&cifs_file->flist); // cleanup!! kfree(cifs_file); spin_unlock(&cifs_file_list_lock); spin_lock(&cifs_file_list_lock); ++refind; // refind = 1 goto refind_writable; At this point we loop back through with an invalid inv_file pointer and a refind value of 1. On second pass, inv_file is not overwritten on openFileList traversal, and is subsequently dereferenced. Signed-off-by:
David Disseldorp <ddiss@suse.de> Reviewed-by:
Jeff Layton <jlayton@samba.org> Signed-off-by:
Steve French <smfrench@gmail.com> Signed-off-by:
-
Catalin Marinas authored
commit 91edd096 upstream. Commit db31c55a (net: clamp ->msg_namelen instead of returning an error) introduced the clamping of msg_namelen when the unsigned value was larger than sizeof(struct sockaddr_storage). This caused a msg_namelen of -1 to be valid. The native code was subsequently fixed by commit dbb490b9 (net: socket: error on a negative msg_namelen). In addition, the native code sets msg_namelen to 0 when msg_name is NULL. This was done in commit (6a2a2b3a net:socket: set msg_namelen to 0 if msg_name is passed as NULL in msghdr struct from userland) and subsequently updated by 08adb7da (fold verify_iovec() into copy_msghdr_from_user()). This patch brings the get_compat_msghdr() in line with copy_msghdr_from_user(). Fixes: db31c55a (net: clamp ->msg_namelen instead of returning an error) Cc: David S. Miller <davem@davemloft.net> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
-
Markos Chandras authored
commit 87f966d9 upstream. On a MIPS Malta board, tons of fifo underflow errors have been observed when using u-boot as bootloader instead of YAMON. The reason for that is that YAMON used to set the pcnet device to SRAM mode but u-boot does not. As a result, the default Tx threshold (64 bytes) is now too small to keep the fifo relatively used and it can result to Tx fifo underflow errors. As a result of which, it's best to setup the SRAM on supported controllers so we can always use the NOUFLO bit. Cc: <netdev@vger.kernel.org> Cc: <linux-kernel@vger.kernel.org> Cc: Don Fry <pcnet32@frontier.com> Signed-off-by:
Markos Chandras <markos.chandras@imgtec.com> Signed-off-by:
-
Nathaniel W Filardo authored
commit 5e71fc86 upstream. Add USB VID/PID for Xircom PGMFHUB USB/serial component. (The hub and SCSI bridge on that hardware are recognized out of the box by existing drivers.) Tested VID/PID using new_id and loopback connection and was met with success, but that's all the testing done. Signed-off-by:
Nathaniel Wesley Filardo <nwf@cs.jhu.edu> Signed-off-by:
-
Mark Knibbs authored
commit 5f9f975b upstream. Entrega is misspelled as Entregra or Entrgra, so fix that. Signed-off-by:
Mark Knibbs <markk@clara.co.uk> Signed-off-by:
-
Doug Goldstein authored
commit 4899c054 upstream. Synapse Wireless uses the FTDI VID with a custom PID of 0x9090 for their SNAP Stick 200 product. Signed-off-by:
-
Martin Fuzzey authored
commit c1b03ab5 upstream. When an error occurred during event registration memory was freed twice resulting in kernel memory corruption and a crash in unrelated code. The problem was caused by iio_device_unregister_eventset() iio_device_unregister_sysfs() being called twice, once on the error path and then again via iio_dev_release(). Fix this by making these two functions idempotent so they may be called multiple times. The problem was observed before applying 78b33216 iio:core: Handle error when mask type is not separate Signed-off-by:
Martin Fuzzey <mfuzzey@parkeon.com> Signed-off-by:
Jonathan Cameron <jic23@kernel.org> [bwh: Backported to 3.2: - Adjust filenames, context - Drop inapplicable change to iio_free_chan_devattr_list()] Signed-off-by:
-
Sudip Mukherjee authored
commit ff6b8090 upstream. we have already allocated memory for nbd_dev, but we were not releasing that memory and just returning the error value. Signed-off-by:
Sudip Mukherjee <sudip@vectorindia.org> Acked-by:
Paul Clements <Paul.Clements@SteelEye.com> Signed-off-by:
Markus Pargmann <mpa@pengutronix.de> Signed-off-by:
-
Tejun Heo authored
commit 7d70e154 upstream. global_update_bandwidth() uses static variable update_time as the timestamp for the last update but forgets to initialize it to INITIALIZE_JIFFIES. This means that global_dirty_limit will be 5 mins into the future on 32bit and some large amount jiffies into the past on 64bit. This isn't critical as the only effect is that global_dirty_limit won't be updated for the first 5 mins after booting on 32bit machines, especially given the auxiliary nature of global_dirty_limit's role - protecting against global dirty threshold's sudden dips; however, it does lead to unintended suboptimal behavior. Fix it. Fixes: c42843f2 ("writeback: introduce smoothed global dirty limit") Signed-off-by:
Jan Kara <jack@suse.cz> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by:
-
Nicholas Bellinger authored
commit 215a8fe4 upstream. This patch fixes a NULL pointer dereference OOPs with pSCSI backends within target_core_stat.c code. The bug is caused by a configfs attr read if no pscsi_dev_virt->pdv_sd has been configured. Reported-by:
Olaf Hering <olaf@aepfle.de> Signed-off-by:
Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by:
-
Dan Carpenter authored
commit d556546e upstream. This patch adds a missing set of conditional check braces in ft_invl_hw_context() originally introduced by commit dcd998cc when handling DDP failures in ft_recv_write_data() code. commit dcd998cc Author: Kiran Patil <kiran.patil@intel.com> Date: Wed Aug 3 09:20:01 2011 +0000 tcm_fc: Handle DDP/SW fc_frame_payload_get failures in ft_recv_write_data Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Cc: Kiran Patil <kiran.patil@intel.com> Signed-off-by:
-
Majd Dibbiny authored
commit 61a3855b upstream. For RoCE ports, we set the u32 PMA values based on u64 HCA counters. In case of overflow, according to the IB spec, we have to saturate a counter to its max value, do that. Fixes: c3779134 ('IB/mlx4: Support PMA counters for IBoE') Signed-off-by:
Majd Dibbiny <majd@mellanox.com> Signed-off-by:
Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by:
Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
-
Kirill A. Shutemov authored
commit ab676b7d upstream. As pointed by recent post[1] on exploiting DRAM physical imperfection, /proc/PID/pagemap exposes sensitive information which can be used to do attacks. This disallows anybody without CAP_SYS_ADMIN to read the pagemap. [1] http://googleprojectzero.blogspot.com/2015/03/exploiting-dram-rowhammer-bug-to-gain.html [ Eventually we might want to do anything more finegrained, but for now this is the simple model. - Linus ] Signed-off-by:
Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by:
Konstantin Khlebnikov <khlebnikov@openvz.org> Acked-by:
Andy Lutomirski <luto@amacapital.net> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Mark Seaborn <mseaborn@chromium.org> Signed-off-by:
mancha security <mancha1@zoho.com> Signed-off-by:
-
Johannes Berg authored
commit 496fcc29 upstream. As HT/VHT depend heavily on QoS/WMM, it's not a good idea to let userspace add clients that have HT/VHT but not QoS/WMM. Since it does so in certain cases we've observed (client is using HT IEs but not QoS/WMM) just ignore the HT/VHT info at this point and don't pass it down to the drivers which might unconditionally use it. Signed-off-by:
Johannes Berg <johannes.berg@intel.com> [bwh: Backported to 3.2: - Adjust context - VHT is not supported] Signed-off-by:
-
Stephan Mueller authored
commit ccfe8c3f upstream. The kernel crypto API logic requires the caller to provide the length of (ciphertext || authentication tag) as cryptlen for the AEAD decryption operation. Thus, the cipher implementation must calculate the size of the plaintext output itself and cannot simply use cryptlen. The RFC4106 GCM decryption operation tries to overwrite cryptlen memory in req->dst. As the destination buffer for decryption only needs to hold the plaintext memory but cryptlen references the input buffer holding (ciphertext || authentication tag), the assumption of the destination buffer length in RFC4106 GCM operation leads to a too large size. This patch simply uses the already calculated plaintext size. In addition, this patch fixes the offset calculation of the AAD buffer pointer: as mentioned before, cryptlen already includes the size of the tag. Thus, the tag does not need to be added. With the addition, the AAD will be written beyond the already allocated buffer. Note, this fixes a kernel crash that can be triggered from user space via AF_ALG(aead) -- simply use the libkcapi test application from [1] and update it to use rfc4106-gcm-aes. Using [1], the changes were tested using CAVS vectors to demonstrate that the crypto operation still delivers the right results. [1] http://www.chronox.de/libkcapi.html CC: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by:
Stephan Mueller <smueller@chronox.de> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
-
Ryusuke Konishi authored
commit 283ee148 upstream. According to a report from Yuxuan Shui, nilfs2 in kernel 3.19 got stuck during recovery at mount time. The code path that caused the deadlock was as follows: nilfs_fill_super() load_nilfs() nilfs_salvage_orphan_logs() * Do roll-forwarding, attach segment constructor for recovery, and kick it. nilfs_segctor_thread() nilfs_segctor_thread_construct() * A lock is held with nilfs_transaction_lock() nilfs_segctor_do_construct() nilfs_segctor_drop_written_files() iput() iput_final() write_inode_now() writeback_single_inode() __writeback_single_inode() do_writepages() nilfs_writepage() nilfs_construct_dsync_segment() nilfs_transaction_lock() --> deadlock This can happen if commit 7ef3ff2f ("nilfs2: fix deadlock of segment constructor over I_SYNC flag") is applied and roll-forward recovery was performed at mount time. The roll-forward recovery can happen if datasync write is done and the file system crashes immediately after that. For instance, we can reproduce the issue with the following steps: < nilfs2 is mounted on /nilfs (device: /dev/sdb1) > # dd if=/dev/zero of=/nilfs/test bs=4k count=1 && sync # dd if=/dev/zero of=/nilfs/test conv=notrunc oflag=dsync bs=4k count=1 && reboot -nfh < the system will immediately reboot > # mount -t nilfs2 /dev/sdb1 /nilfs The deadlock occurs because iput() can run segment constructor through writeback_single_inode() if MS_ACTIVE flag is not set on sb->s_flags. The above commit changed segment constructor so that it calls iput() asynchronously for inodes with i_nlink == 0, but that change was imperfect. This fixes the another deadlock by deferring iput() in segment constructor even for the case that mount is not finished, that is, for the case that MS_ACTIVE flag is not set. Signed-off-by:
Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Reported-by:
Yuxuan Shui <yshuiv7@gmail.com> Tested-by:
-
Daniel Mack authored
commit fcdcd1de upstream. The device complies to the UAC1 standard but hides that fact with proprietary descriptors. The autodetect quirk for Roland devices catches the audio interface but misses the MIDI part, so a specific quirk is needed. Signed-off-by:
Daniel Mack <daniel@zonque.org> Reported-by:
Rafa Lafuente <rafalafuente@gmail.com> Tested-by:
Raphaël Doursenaud <raphael@doursenaud.fr> Signed-off-by:
-
Takashi Iwai authored
commit be3bb823 upstream. There was no check about the id string of user control elements, so we accepted even a control element with an empty string, which is obviously bogus. This patch adds more sanity checks of id strings. Signed-off-by:
-
Thomas Hellstrom authored
commit 3458390b upstream. To take down the MOB and GMR memory types, the driver may have to issue fence objects and thus make sure that the fence manager is taken down after those memory types. Reorder device init accordingly. Signed-off-by:
Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by:
Sinclair Yeh <syeh@vmware.com> [bwh: Backported to 3.2: - Adjust context - Only the GMR memory type is used] Signed-off-by:
-
Jan Beulich authored
commit af6fc858 upstream. Otherwise the guest can abuse that control to cause e.g. PCIe Unsupported Request responses by disabling memory and/or I/O decoding and subsequently causing (CPU side) accesses to the respective address ranges, which (depending on system configuration) may be fatal to the host. Note that to alter any of the bits collected together as PCI_COMMAND_GUEST permissive mode is now required to be enabled globally or on the specific device. This is CVE-2015-2150 / XSA-120. Signed-off-by:
Jan Beulich <jbeulich@suse.com> Reviewed-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by:
David Vrabel <david.vrabel@citrix.com> [bwh: Backported to 3.2: also change type of permissive from int to bool] Signed-off-by:
-
Takashi Iwai authored
commit b4a18c8b upstream. The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
-
Takashi Iwai authored
commit 07892b10 upstream. The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
-
Takashi Iwai authored
commit eaddf6fd upstream. The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
-
