- 18 Apr, 2016 29 commits
-
-
Arnd Bergmann authored
[ Upstream commit 83d6f1f1 ] Code that was added back in 2.6.38 has an obvious overflow when accessing a static array, and at the time it was added only a code comment was put in front of it as a reminder to have it reviewed properly. This has not happened, but gcc-6 now points to the specific overflow: drivers/net/wireless/ath/ath9k/eeprom.c: In function 'ath9k_hw_get_gain_boundaries_pdadcs': drivers/net/wireless/ath/ath9k/eeprom.c:483:44: error: array subscript is above array bounds [-Werror=array-bounds] maxPwrT4[i] = data_9287[idxL].pwrPdg[i][4]; ~~~~~~~~~~~~~~~~~~~~~~~~~^~~ It turns out that the correct array length exists in the local 'intercepts' variable of this function, so we can just use that instead of hardcoding '4', so this patch changes all three instances to use that variable. The other two instances were already correct, but it's more consistent this way. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 940cd2c1 ("ath9k_hw: merge the ar9287 version of ath9k_hw_get_gain_boundaries_pdadcs") Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Arnd Bergmann authored
[ Upstream commit e725a66c ] gcc-6 finds an out of bounds access in the fst_add_one function when calculating the end of the mmio area: drivers/net/wan/farsync.c: In function 'fst_add_one': drivers/net/wan/farsync.c:418:53: error: index 2 denotes an offset greater than size of 'u8[2][8192] {aka unsigned char[2][8192]}' [-Werror=array-bounds] #define BUF_OFFSET(X) (BFM_BASE + offsetof(struct buf_window, X)) ^ include/linux/compiler-gcc.h:158:21: note: in definition of macro '__compiler_offsetof' __builtin_offsetof(a, b) ^ drivers/net/wan/farsync.c:418:37: note: in expansion of macro 'offsetof' #define BUF_OFFSET(X) (BFM_BASE + offsetof(struct buf_window, X)) ^~~~~~~~ drivers/net/wan/farsync.c:2519:36: note: in expansion of macro 'BUF_OFFSET' + BUF_OFFSET ( txBuffer[i][NUM_TX_BUFFER][0]); ^~~~~~~~~~ The warning is correct, but not critical because this appears to be a write-only variable that is set by each WAN driver but never accessed afterwards. I'm taking the minimal fix here, using the correct pointer by pointing 'mem_end' to the last byte inside of the register area as all other WAN drivers do, rather than the first byte outside of it. An alternative would be to just remove the mem_end member entirely. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Arnd Bergmann authored
[ Upstream commit baefd701 ] The implementation of QP paravirtualization back in linux-3.7 included some code that looks very dubious, and gcc-6 has grown smart enough to warn about it: drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'verify_qp_parameters': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:3154:5: error: statement is indented as if it were guarded by... [-Werror=misleading-indentation] if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) { ^~ drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:3144:4: note: ...this 'if' clause, but it is not if (slave != mlx4_master_func_num(dev)) >From looking at the context, I'm reasonably sure that the indentation is correct but that it should have contained curly braces from the start, as the update_gid() function in the same patch correctly does. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 54679e14 ("mlx4: Implement QP paravirtualization and maintain phys_pkey_cache for smp_snoop") Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Arnaldo Carvalho de Melo authored
[ Upstream commit 34b88a68 ] The syzkaller fuzzer hit the following use-after-free: Call Trace: [<ffffffff8175ea0e>] __asan_report_load8_noabort+0x3e/0x40 mm/kasan/report.c:295 [<ffffffff851cc31a>] __sys_recvmmsg+0x6fa/0x7f0 net/socket.c:2261 [< inline >] SYSC_recvmmsg net/socket.c:2281 [<ffffffff851cc57f>] SyS_recvmmsg+0x16f/0x180 net/socket.c:2270 [<ffffffff86332bb6>] entry_SYSCALL_64_fastpath+0x16/0x7a arch/x86/entry/entry_64.S:185 And, as Dmitry rightly assessed, that is because we can drop the reference and then touch it when the underlying recvmsg calls return some packets and then hit an error, which will make recvmmsg to set sock->sk->sk_err, oops, fix it. Reported-and-Tested-by: Dmitry Vyukov <dvyukov@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Kostya Serebryany <kcc@google.com> Cc: Sasha Levin <sasha.levin@oracle.com> Fixes: a2e27255 ("net: Introduce recvmmsg socket syscall") http://lkml.kernel.org/r/20160122211644.GC2470@redhat.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Willem de Bruijn authored
[ Upstream commit 8e2ad411 ] The stack expects link layer headers in the skb linear section. Macvtap can create skbs with llheader in frags in edge cases: when (IFF_VNET_HDR is off or vnet_hdr.hdr_len < ETH_HLEN) and prepad + len > PAGE_SIZE and vnet_hdr.flags has no or bad csum. Add checks to ensure linear is always at least ETH_HLEN. At this point, len is already ensured to be >= ETH_HLEN. For backwards compatiblity, rounds up short vnet_hdr.hdr_len. This differs from tap and packet, which return an error. Fixes b9fb9ee0 ("macvtap: add GSO/csum offload support") Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Sergei Shtylyov authored
[ Upstream commit c1b7fca6 ] In a low memory situation, if netdev_alloc_skb() fails on a first RX ring loop iteration in sh_eth_ring_format(), 'rxdesc' is still NULL. Avoid kernel oops by adding the 'rxdesc' check after the loop. Reported-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Bill Sommerfeld authored
[ Upstream commit 59dca1d8 ] IPv4 interprets a negative return value from a protocol handler as a request to redispatch to a new protocol. In contrast, IPv6 interprets a negative value as an error, and interprets a positive value as a request for redispatch. UDP for IPv6 was unaware of this difference. Change __udp6_lib_rcv() to return a positive value for redispatch. Note that the socket's encap_rcv hook still needs to return a negative value to request dispatch, and in the case of IPv6 packets, adjust IP6CB(skb)->nhoff to identify the byte containing the next protocol. Signed-off-by: Bill Sommerfeld <wsommerfeld@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Oliver Neukum authored
[ Upstream commit 1666984c ] In case bind() works, but a later error forces bailing in probe() in error cases work and a timer may be scheduled. They must be killed. This fixes an error case related to the double free reported in http://www.spinics.net/lists/netdev/msg367669.html and needs to go on top of Linus' fix to cdc-ncm. Signed-off-by: Oliver Neukum <ONeukum@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Bjørn Mork authored
[ Upstream commit 48906f62 ] Some devices will silently fail setup unless they are reset first. This is necessary even if the data interface is already in altsetting 0, which it will be when the device is probed for the first time. Briefly toggling the altsetting forces a function reset regardless of the initial state. This fixes a setup problem observed on a number of Huawei devices, appearing to operate in NTB-32 mode even if we explicitly set them to NTB-16 mode. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Florian Westphal authored
[ Upstream commit 5d150a98 ] When ipv6_find_hdr is used to find a fragment header (caller specifies target NEXTHDR_FRAGMENT) we erronously return -ENOENT for all fragments with nonzero offset. Before commit 9195bb8e, when target was specified, we did not enter the exthdr walk loop as nexthdr == target so this used to work. Now we do (so we can skip empty route headers). When we then stumble upon a frag with nonzero frag_off we must return -ENOENT ("header not found") only if the caller did not specifically request NEXTHDR_FRAGMENT. This allows nfables exthdr expression to match ipv6 fragments, e.g. via nft add rule ip6 filter input frag frag-off gt 0 Fixes: 9195bb8e ("ipv6: improve ipv6_find_hdr() to skip empty routing headers") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Yegor Yefremov authored
commit 7b5939ba upstream. This device provides QMI and ethernet functionality via a standard CDC ethernet descriptor. But when driven by cdc_ether, the QMI functionality is unavailable because only cdc_ether can claim the USB interface. Thus blacklist the device in cdc_ether and add its IDs to qmi_wwan, which enables both QMI and ethernet simultaneously. Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Schemmel Hans-Christoph authored
commit bd9e3350 upstream. Added support for Gemalto's Cinterion PHxx WWAN interfaces by adding QMI_FIXED_INTF with Cinterion's VID and PID. PHxx can have: 2 RmNet Interfaces (PID 0x0082) or 1 RmNet + 1 USB Audio interface (PID 0x0083). Signed-off-by: Hans-Christoph Schemmel <hans-christoph.schemmel@gemalto.com> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Bjørn Mork authored
commit bf13c94c upstream. The MC74xx and EM74xx modules use different IDs by default, according to the Lenovo EM7455 driver for Windows. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Patrik Halfar authored
commit fb5eb24c upstream. New revison of Dell Wireless 5809e Gobi 4G HSPA+ Mobile Broadband Card has new idProduct Bus 002 Device 006: ID 413c:81b3 Dell Computer Corp. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x413c Dell Computer Corp. idProduct 0x81b3 bcdDevice 0.06 iManufacturer 1 Sierra Wireless, Incorporated iProduct 2 Dell Wireless 5809e Gobi
™ 4G HSPA+ Mobile Broadband Card iSerial 3 bNumConfigurations 2 Signed-off-by: Patrik Halfar <patrik_halfar@halfarit.cz> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz> -
Kristian Evensen authored
commit 18715b26 upstream. SIMCom 7230E is a QMI LTE module with support for most "normal" bands. Manual testing has showed that only interface five works. Cc: Bjørn Mork <bjorn@mork.no> Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Kristian Evensen authored
commit e439bd4a upstream. The WeTelecom-WPD600N is an LTE module that, in addition to supporting most "normal" bands, also supports LTE over 450MHz. Manual testing showed that only interface number three replies to QMI messages. Cc: Bjørn Mork <bjorn@mork.no> Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Bjørn Mork authored
commit 544c8f65 upstream. This turned out to be a bootloader device ID. No need for that in this driver. It will only provide a single serial function. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Bjørn Mork authored
commit 0db65fcf upstream. New device IDs shamelessly lifted from the vendor driver. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
David Ward authored
commit e7040592 upstream. Other Sierra Wireless MC73xx devices exist, with different USB IDs. Cc: Bjørn Mork <bjorn@mork.no> Signed-off-by: David Ward <david.ward@ll.mit.edu> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
David Ward authored
commit a8079092 upstream. This is an HP-branded Sierra Wireless EM7355: https://bugzilla.redhat.com/show_bug.cgi?id=1223646#c2Signed-off-by: David Ward <david.ward@ll.mit.edu> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Pieter Hollants authored
commit 2070c48c upstream. Added the USB IDs 0x413c:0x81b1 for the "Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card", a Dell-branded Sierra Wireless EM7305 LTE card in M.2 form factor, used eg. in Dell's Latitude E7540 Notebook series. Signed-off-by: Pieter Hollants <pieter@hollants.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Reinhard Speyerer authored
commit e3426ca7 upstream. Sierra Wireless MC7305/MC7355 with USB ID 1199:9041 also provide a second QMI/network interface like the MC73xx with USB ID 1199:68c0 on USB interface #10 when used in the appropriate USB configuration. Add the corresponding QMI_FIXED_INTF entry to the qmi_wwan driver. Please note that the second QMI/network interface is not working for early MC73xx firmware versions like 01.08.x as the device does not respond to QMI messages on the second /dev/cdc-wdm port. Signed-off-by: Reinhard Speyerer <rspmn@arcor.de> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Aleksander Morgado authored
commit fc0d6e9c upstream. This interface is unusable, as the cdc-wdm character device doesn't reply to any QMI command. Also, the out-of-tree Sierra Wireless GobiNet driver fully skips it. Signed-off-by: Aleksander Morgado <aleksander@aleksander.es> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Aleksander Morgado authored
commit 9a793e71 upstream. A set of new VID/PIDs retrieved from the out-of-tree GobiNet/GobiSerial Sierra Wireless drivers. Signed-off-by: Aleksander Morgado <aleksander@aleksander.es> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Aleksander Morgado authored
commit 4324be1e upstream. Signed-off-by: Aleksander Morgado <aleksander@aleksander.es> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Bjørn Mork authored
commit e84810c7 upstream. Thomas reports: "Windows: 00 diagnostics 01 modem 02 at-port 03 nmea 04 nic Linux: T: Bus=02 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 4 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=2001 ProdID=7e19 Rev=02.32 S: Manufacturer=Mobile Connect S: Product=Mobile Connect S: SerialNumber=0123456789ABCDEF C: #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option I: If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan I: If#= 5 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage" Reported-by: Thomas Schäfer <tschaefer@t-online.de> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Xin Long authored
[ Upstream commit 40b4f0fd ] As the member .cmp_addr of sctp_af_inet6, sctp_v6_cmp_addr should also check the port of addresses, just like sctp_v4_cmp_addr, cause it's invoked by sctp_cmp_addr_exact(). Now sctp_v6_cmp_addr just check the port when two addresses have different family, and lack the port check for two ipv6 addresses. that will make sctp_hash_cmp() cannot work well. so fix it by adding ports comparison in sctp_v6_cmp_addr(). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Diego Viola authored
[ Upstream commit ee50c130 ] The JMC260 network card fails to suspend/resume because the call to jme_start_irq() was too early, moving the call to jme_start_irq() after the call to jme_reset_link() makes it work. Prior this change suspend/resume would fail unless /sys/power/pm_async=0 was explicitly specified. Relevant bug report: https://bugzilla.kernel.org/show_bug.cgi?id=112351Signed-off-by: Diego Viola <diego.viola@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Bernie Harris authored
[ Upstream commit 5146d1f1 ] IPCB may contain data from previous layers (in the observed case the qdisc layer). In the observed scenario, the data was misinterpreted as ip header options, which later caused the ihl to be set to an invalid value (<5). This resulted in an infinite loop in the mips implementation of ip_fast_csum. This patch clears IPCB(skb)->opt before dst_link_failure can be called for various types of tunnels. This change only applies to encapsulated ipv4 packets. The code introduced in 11c21a30 which clears all of IPCB has been removed to be consistent with these changes, and instead the opt field is cleared unconditionally in ip_tunnel_xmit. The change in ip_tunnel_xmit applies to SIT, GRE, and IPIP tunnels. The relevant vti, l2tp, and pptp functions already contain similar code for clearing the IPCB. [js] backport to 3.12: no udp_tunnel there Signed-off-by: Bernie Harris <bernie.harris@alliedtelesis.co.nz> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
- 11 Apr, 2016 11 commits
-
-
Jiri Slaby authored
-
Andi Kleen authored
commit e17dc653 upstream. Jiri reported some time ago that some entries in the PEBS data source table in perf do not agree with the SDM. We investigated and the bits changed for Sandy Bridge, but the SDM was not updated. perf already implements the bits correctly for Sandy Bridge and later. This patch patches it up for Nehalem and Westmere. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: jolsa@kernel.org Link: http://lkml.kernel.org/r/1456871124-15985-1-git-send-email-andi@firstfloor.orgSigned-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Jiri Olsa authored
commit e72daf3f upstream. Using PAGE_SIZE buffers makes the WRMSR to PERF_GLOBAL_CTRL in intel_pmu_enable_all() mysteriously hang on Core2. As a workaround, we don't do this. The hard lockup is easily triggered by running 'perf test attr' repeatedly. Most of the time it gets stuck on sample session with small periods. # perf test attr -vv 14: struct perf_event_attr setup : --- start --- ... 'PERF_TEST_ATTR=/tmp/tmpuEKz3B /usr/bin/perf record -o /tmp/tmpuEKz3B/perf.data -c 123 kill >/dev/null 2>&1' ret 1 Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Andi Kleen <ak@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20160301190352.GA8355@krava.redhat.comSigned-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Thomas Gleixner authored
commit e9532e69 upstream. On CPU hotplug the steal time accounting can keep a stale rq->prev_steal_time value over CPU down and up. So after the CPU comes up again the delta calculation in steal_account_process_tick() wreckages itself due to the unsigned math: u64 steal = paravirt_steal_clock(smp_processor_id()); steal -= this_rq()->prev_steal_time; So if steal is smaller than rq->prev_steal_time we end up with an insane large value which then gets added to rq->prev_steal_time, resulting in a permanent wreckage of the accounting. As a consequence the per CPU stats in /proc/stat become stale. Nice trick to tell the world how idle the system is (100%) while the CPU is 100% busy running tasks. Though we prefer realistic numbers. None of the accounting values which use a previous value to account for fractions is reset at CPU hotplug time. update_rq_clock_task() has a sanity check for prev_irq_time and prev_steal_time_rq, but that sanity check solely deals with clock warps and limits the /proc/stat visible wreckage. The prev_time values are still wrong. Solution is simple: Reset rq->prev_*_time when the CPU is plugged in again. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Rik van Riel <riel@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Glauber Costa <glommer@parallels.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Fixes: commit 095c0aa8 "sched: adjust scheduler cpu power for stolen time" Fixes: commit aa483808 "sched: Remove irq time from available CPU power" Fixes: commit e6e6685a "KVM guest: Steal time accounting" Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1603041539490.3686@nanosSigned-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Aaro Koskinen authored
commit 5e64c29e upstream. Commit 5942ddbc ("mtd: introduce mtd_block_markbad interface") incorrectly changed onenand_block_markbad() to call mtd_block_markbad instead of onenand_chip's block_markbad function. As a result the function will now recurse and deadlock. Fix by reverting the change. Fixes: 5942ddbc ("mtd: introduce mtd_block_markbad interface") Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Acked-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Joseph Qi authored
commit be12b299 upstream. When master handles convert request, it queues ast first and then returns status. This may happen that the ast is sent before the request status because the above two messages are sent by two threads. And right after the ast is sent, if master down, it may trigger BUG in dlm_move_lockres_to_recovery_list in the requested node because ast handler moves it to grant list without clear lock->convert_pending. So remove BUG_ON statement and check if the ast is processed in dlmconvert_remote. Signed-off-by: Joseph Qi <joseph.qi@huawei.com> Reported-by: Yiwen Jiang <jiangyiwen@huawei.com> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Cc: Tariq Saeed <tariq.x.saeed@oracle.com> Cc: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Joseph Qi authored
commit ac7cf246 upstream. There is a race window between dlmconvert_remote and dlm_move_lockres_to_recovery_list, which will cause a lock with OCFS2_LOCK_BUSY in grant list, thus system hangs. dlmconvert_remote { spin_lock(&res->spinlock); list_move_tail(&lock->list, &res->converting); lock->convert_pending = 1; spin_unlock(&res->spinlock); status = dlm_send_remote_convert_request(); >>>>>> race window, master has queued ast and return DLM_NORMAL, and then down before sending ast. this node detects master down and calls dlm_move_lockres_to_recovery_list, which will revert the lock to grant list. Then OCFS2_LOCK_BUSY won't be cleared as new master won't send ast any more because it thinks already be authorized. spin_lock(&res->spinlock); lock->convert_pending = 0; if (status != DLM_NORMAL) dlm_revert_pending_convert(res, lock); spin_unlock(&res->spinlock); } In this case, check if res->state has DLM_LOCK_RES_RECOVERING bit set (res is still in recovering) or res master changed (new master has finished recovery), reset the status to DLM_RECOVERING, then it will retry convert. Signed-off-by: Joseph Qi <joseph.qi@huawei.com> Reported-by: Yiwen Jiang <jiangyiwen@huawei.com> Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com> Cc: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Cc: Tariq Saeed <tariq.x.saeed@oracle.com> Cc: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Vladis Dronov authored
commit 950336ba upstream. The ati_remote2 driver expects at least two interfaces with one endpoint each. If given malicious descriptor that specify one interface or no endpoints, it will crash in the probe function. Ensure there is at least two interfaces and one endpoint for each interface before using it. The full disclosure: http://seclists.org/bugtraq/2016/Mar/90Reported-by: Ralf Spenneberg <ralf@spenneberg.net> Signed-off-by: Vladis Dronov <vdronov@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Oliver Neukum authored
commit a0ad220c upstream. A malicious device missing interface can make the driver oops. Add sanity checking. Signed-off-by: Oliver Neukum <ONeukum@suse.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Himanshu Madhani authored
commit 5e47f198 upstream. This patch fixes an active I/O shutdown bug for fabric drivers using target_wait_for_sess_cmds(), where se_cmd descriptor shutdown would result in hung tasks waiting indefinitely for se_cmd->cmd_wait_comp to complete(). To address this bug, drop the incorrect list_del_init() usage in target_wait_for_sess_cmds() and always complete() during se_cmd target_release_cmd_kref() put, in order to let caller invoke the final fabric release callback into se_cmd->se_tfo->release_cmd() code. [3.12 backport: we have only list_del] Reported-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Tested-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-
Jiri Kosina authored
commit c8b08ca5 upstream. mkspec is copying built kernel to temporrary location /boot/vmlinuz-$KERNELRELEASE-rpm and runs installkernel on it. This however directly leads to grub2 menuentry for this suffixed binary being generated as well during the run of installkernel script. Later in the process the temporary -rpm suffixed files are removed, and therefore we end up with spurious (and non-functional) grub2 menu entries for each installed kernel RPM. Fix that by using a different temporary name (prefixed by '.'), so that the binary is not recognized as an actual kernel binary and no menuentry is created for it. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Fixes: 3c9c7a14 ("rpm-pkg: add %post section to create initramfs and grub hooks") Signed-off-by: Michal Marek <mmarek@suse.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-