- 11 Jul, 2016 26 commits
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Thomas Petazzoni authored
commit de95c40d upstream. On some platforms, the clocks might be registered by a platform driver. When this is the case, the clock platform driver may very well be probed after xhci-plat, in which case the first probe() invocation of xhci-plat will receive -EPROBE_DEFER as the return value of devm_clk_get(). The current code handles that as a normal error, and simply assumes that this means that the system doesn't have a clock for the XHCI controller, and continues probing without calling clk_prepare_enable(). Unfortunately, this doesn't work on systems where the XHCI controller does have a clock, but that clock is provided by another platform driver. In order to fix this situation, we handle the -EPROBE_DEFER error condition specially, and abort the XHCI controller probe(). It will be retried later automatically, the clock will be available, devm_clk_get() will succeed, and the probe() will continue with the clock prepared and enabled as expected. In practice, such issue is seen on the ARM64 Marvell 7K/8K platform, where the clocks are registered by a platform driver. Signed-off-by:
Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Gabriel Krisman Bertazi authored
commit 27a41a83 upstream. Under stress occasions some TI devices might not return early when reading the status register during the quirk invocation of xhci_irq made by usb_hcd_pci_remove. This means that instead of returning, we end up handling this interruption in the middle of a shutdown. Since xhci->event_ring has already been freed in xhci_mem_cleanup, we end up accessing freed memory, causing the Oops below. commit 8c24d6d7 ("usb: xhci: stop everything on the first call to xhci_stop") is the one that changed the instant in which we clean up the event queue when stopping a device. Before, we didn't call xhci_mem_cleanup at the first time xhci_stop is executed (for the shared HCD), instead, we only did it after the invocation for the primary HCD, much later at the removal path. The code flow for this oops looks like this: xhci_pci_remove() usb_remove_hcd(xhci->shared) xhci_stop(xhci->shared) xhci_halt() xhci_mem_cleanup(xhci); // Free the event_queue usb_hcd_pci_remove(primary) xhci_irq() // Access the event_queue if STS_EINT is set. Crash. xhci_stop() xhci_halt() // return early The fix modifies xhci_stop to only cleanup the xhci data when releasing the primary HCD. This way, we still have the event_queue configured when invoking xhci_irq. We still halt the device on the first call to xhci_stop, though. I could reproduce this issue several times on the mainline kernel by doing a bind-unbind stress test with a specific storage gadget attached. I also ran the same test over-night with my patch applied and didn't observe the issue anymore. [ 113.334124] Unable to handle kernel paging request for data at address 0x00000028 [ 113.335514] Faulting instruction address: 0xd00000000d4f767c [ 113.336839] Oops: Kernel access of bad area, sig: 11 [#1] [ 113.338214] SMP NR_CPUS=1024 NUMA PowerNV [c000000efe47ba90] c000000000720850 usb_hcd_irq+0x50/0x80 [c000000efe47bac0] c00000000073d328 usb_hcd_pci_remove+0x68/0x1f0 [c000000efe47bb00] d00000000daf0128 xhci_pci_remove+0x78/0xb0 [xhci_pci] [c000000efe47bb30] c00000000055cf70 pci_device_remove+0x70/0x110 [c000000efe47bb70] c00000000061c6bc __device_release_driver+0xbc/0x190 [c000000efe47bba0] c00000000061c7d0 device_release_driver+0x40/0x70 [c000000efe47bbd0] c000000000619510 unbind_store+0x120/0x150 [c000000efe47bc20] c0000000006183c4 drv_attr_store+0x64/0xa0 [c000000efe47bc60] c00000000039f1d0 sysfs_kf_write+0x80/0xb0 [c000000efe47bca0] c00000000039e14c kernfs_fop_write+0x18c/0x1f0 [c000000efe47bcf0] c0000000002e962c __vfs_write+0x6c/0x190 [c000000efe47bd90] c0000000002eab40 vfs_write+0xc0/0x200 [c000000efe47bde0] c0000000002ec85c SyS_write+0x6c/0x110 [c000000efe47be30] c000000000009260 system_call+0x38/0x108 Signed-off-by:
Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Cc: Roger Quadros <rogerq@ti.com> Cc: joel@jms.id.au Reviewed-by:
Roger Quadros <rogerq@ti.com> Tested-by:
Joel Stanley <joel@jms.id.au> Signed-off-by:
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Bin Liu authored
commit 04471eb8 upstream. Incorrect cppi dma channel is referenced in musb_rx_dma_iso_cppi41(), which causes kernel NULL pointer reference oops later when calling cppi41_dma_channel_program(). Fixes: 069a3fd1 (usb: musb: Remove ifdefs for musb_host_rx in musb_host.c part1) Reported-by:
Matwey V. Kornilov <matwey@sai.msu.ru> Acked-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
Bin Liu <b-liu@ti.com> Signed-off-by:
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Andrew Goodbody authored
commit f3eec0cf upstream. shared_fifo endpoints would only get a previous tx state cleared out, the rx state was only cleared for non shared_fifo endpoints Change this so that the rx state is cleared for all endpoints. This addresses an issue that resulted in rx packets being dropped silently. Signed-off-by:
Andrew Goodbody <andrew.goodbody@cambrionix.com> Signed-off-by:
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Andrew Goodbody authored
commit 7b2c17f8 upstream. Ensure that the endpoint is stopped by clearing REQPKT before clearing DATAERR_NAKTIMEOUT before rotating the queue on the dedicated bulk endpoint. This addresses an issue where a race could result in the endpoint receiving data before it was reprogrammed resulting in a warning about such data from musb_rx_reinit before it was thrown away. The data thrown away was a valid packet that had been correctly ACKed which meant the host and device got out of sync. Signed-off-by:
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Bin Liu authored
commit 84ac5d11 upstream. If the session bit was not set in the backup of devctl register, restoring devctl would clear the session bit. Therefor, only restore devctl register when the session bit was set in the backup. This solves the device enumeration failure in otg mode exposed by commit 56f487c7 (PM / Runtime: Update last_busy in rpm_resume). Signed-off-by:
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Hans de Goede authored
commit 32cb0b37 upstream. The Acer C120 LED Projector is a USB-3 connected pico projector which takes both its power and video data from USB-3. In combination with some hubs this device does not play well with lpm, so disable lpm for it. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Hans de Goede authored
commit 81099f97 upstream. Properly sort all the entries by vendor id. Signed-off-by:
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Hans de Goede authored
commit 593224ea upstream. Commit 198de51d ("USB: uas: Limit qdepth at the scsi-host level") removed the scsi_change_queue_depth() call from uas_slave_configure() assuming that the slave would inherit the host's queue_depth, which that commit sets to the same value. This is incorrect, without the scsi_change_queue_depth() call the slave's queue_depth defaults to 1, introducing a performance regression. This commit restores the call, fixing the performance regression. Fixes: 198de51d ("USB: uas: Limit qdepth at the scsi-host level") Reported-by:
Tom Yan <tom.ty89@gmail.com> Signed-off-by:
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Mathias Krause authored
commit 055ddaac upstream. Commit 9aa867e4 ("crypto: user - Add CRYPTO_MSG_DELRNG") accidentally removed the minimum size check for CRYPTO_MSG_GETALG netlink messages. This allows userland to send a truncated CRYPTO_MSG_GETALG message as short as a netlink header only making crypto_report() operate on uninitialized memory by accessing data beyond the end of the netlink message. Fix this be re-adding the minimum required size of CRYPTO_MSG_GETALG messages to the crypto_msg_min[] array. Fixes: 9aa867e4 ("crypto: user - Add CRYPTO_MSG_DELRNG") Signed-off-by:
Mathias Krause <minipli@googlemail.com> Cc: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Linus Walleij authored
commit 19ced623 upstream. The hash buffer is really HASH_BLOCK_SIZE bytes, someone must have thought that memmove takes n*u32 words by mistake. Tests work as good/bad as before after this patch. Cc: Joakim Bech <joakim.bech@linaro.org> Reported-by:
David Binderman <linuxdev.baldrick@gmail.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Anton Blanchard authored
commit 12d3f49e upstream. All of the VMX AES ciphers (AES, AES-CBC and AES-CTR) are set at priority 1000. Unfortunately this means we never use AES-CBC and AES-CTR, because the base AES-CBC cipher that is implemented on top of AES inherits its priority. To fix this, AES-CBC and AES-CTR have to be a higher priority. Set them to 2000. Testing on a POWER8 with: cryptsetup benchmark --cipher aes --key-size 256 Shows decryption speed increase from 402.4 MB/s to 3069.2 MB/s, over 7x faster. Thanks to Mike Strosaker for helping me debug this issue. Fixes: 8c755ace ("crypto: vmx - Adding CBC routines for VMX module") Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
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Basil Gunn authored
[ Upstream commit 4a7d99ea ] A socket connection made in ax.25 is not closed when session is completed. The heartbeat timer is stopped prematurely and this is where the socket gets closed. Allow heatbeat timer to run to close socket. Symptom occurs in kernels >= 4.2.0 Originally sent 6/15/2016. Resend with distribution list matching scripts/maintainer.pl output. Signed-off-by:
Basil Gunn <basil@pacabunga.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Daniel Borkmann authored
[ Upstream commit 3697649f ] When we're dealing with clones and the area is not writeable, try harder and get a copy via pskb_expand_head(). Replace also other occurences in tc actions with the new skb_try_make_writable(). Reported-by:
Ashhad Sheikh <ashhadsheikh394@gmail.com> Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
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Feng Tang authored
[ Upstream commit 881d0327 ] Note: This is a verified backported patch for stable 4.4 kernel, and it could also be applied to 4.3/4.2/4.1/3.18/3.16 There is a problem with alx devices, that the network link will be lost in 1-5 minutes after the device is up. >From debugging without datasheet, we found the error always happen when the DMA RX address is set to 0x....fc0, which is very likely to be a HW/silicon problem. This patch will apply rx skb with 64 bytes longer space, and if the allocated skb has a 0x...fc0 address, it will use skb_resever(skb, 64) to advance the address, so that the RX overflow can be avoided. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=70761Signed-off-by:
Feng Tang <feng.tang@intel.com> Suggested-by:
Eric Dumazet <edumazet@google.com> Tested-by:
Ole Lukoie <olelukoie@mail.ru> Signed-off-by:
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Nicolas Ferre authored
[ Upstream commit 6bdaa5e9 ] On AT91 SoCs, the User Register (USRIO) exposes a switch to configure the "Reduced" or "Traditional" version of the Media Independent Interface (RMII vs. MII or RGMII vs. GMII). As on the older EMAC version, on GMAC, this switch is set by default to the non-reduced type of interface, so use the existing capability and extend it to GMII as well. We then keep the current logic in the macb_init() function. The capabilities of sama5d2, sama5d4 and sama5d3 GEM interface are updated in the macb_config structure to be able to properly enable them with a traditional interface (GMII or MII). Reported-by:
Romain HENRIET <romain.henriet@l-acoustics.com> Signed-off-by:
Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by:
Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by:
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David Barroso authored
[ Upstream commit b560f03d ] neigh_xmit() expects to be called inside an RCU-bh read side critical section, and while one of its two current callers gets this right, the other one doesn't. More specifically, neigh_xmit() has two callers, mpls_forward() and mpls_output(), and while both callers call neigh_xmit() under rcu_read_lock(), this provides sufficient protection for neigh_xmit() only in the case of mpls_forward(), as that is always called from softirq context and therefore doesn't need explicit BH protection, while mpls_output() can be called from process context with softirqs enabled. When mpls_output() is called from process context, with softirqs enabled, we can be preempted by a softirq at any time, and RCU-bh considers the completion of a softirq as signaling the end of any pending read-side critical sections, so if we do get a softirq while we are in the part of neigh_xmit() that expects to be run inside an RCU-bh read side critical section, we can end up with an unexpected RCU grace period running right in the middle of that critical section, making things go boom. This patch fixes this impedance mismatch in the callee, by making neigh_xmit() always take rcu_read_{,un}lock_bh() around the code that expects to be treated as an RCU-bh read side critical section, as this seems a safer option than fixing it in the callers. Fixes: 4fd3d7d9 ("neigh: Add helper function neigh_xmit") Signed-off-by:
David Barroso <dbarroso@fastly.com> Signed-off-by:
Lennert Buytenhek <lbuytenhek@fastly.com> Acked-by:
David Ahern <dsa@cumulusnetworks.com> Acked-by:
Robert Shearman <rshearma@brocade.com> Signed-off-by:
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Daniel Borkmann authored
[ Upstream commit ceb56070 ] Commit dead9f29 ("perf: Fix race in BPF program unregister") moved destruction of BPF program from free_event_rcu() callback to __free_event(), which is problematic if used with tail calls: if prog A is attached as trace event directly, but at the same time present in a tail call map used by another trace event program elsewhere, then we need to delay destruction via RCU grace period since it can still be in use by the program doing the tail call (the prog first needs to be dropped from the tail call map, then trace event with prog A attached destroyed, so we get immediate destruction). Fixes: dead9f29 ("perf: Fix race in BPF program unregister") Signed-off-by:
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Willem de Bruijn authored
[ Upstream commit 9a0fee2b ] Diag intends to broadcast tcp_sk and udp_sk socket destruction. Testing sk->sk_protocol for IPPROTO_TCP/IPPROTO_UDP alone is not sufficient for this. Raw sockets can have the same type. Add a test for sk->sk_type. Fixes: eb4cb008 ("sock_diag: define destruction multicast groups") Signed-off-by:
Willem de Bruijn <willemb@google.com> Signed-off-by:
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daniel authored
[ Upstream commit 0888d5f3 ] The bridge is falsly dropping ipv6 mulitcast packets if there is: 1. No ipv6 address assigned on the brigde. 2. No external mld querier present. 3. The internal querier enabled. When the bridge fails to build mld queries, because it has no ipv6 address, it slilently returns, but keeps the local querier enabled. This specific case causes confusing packet loss. Ipv6 multicast snooping can only work if: a) An external querier is present OR b) The bridge has an ipv6 address an is capable of sending own queries Otherwise it has to forward/flood the ipv6 multicast traffic, because snooping cannot work. This patch fixes the issue by adding a flag to the bridge struct that indicates that there is currently no ipv6 address assinged to the bridge and returns a false state for the local querier in __br_multicast_querier_exists(). Special thanks to Linus Lüssing. Fixes: d1d81d4c ("bridge: check return value of ipv6_dev_get_saddr()") Signed-off-by:
Daniel Danzberger <daniel@dd-wrt.com> Acked-by:
Linus Lüssing <linus.luessing@c0d3.blue> Signed-off-by:
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Tom Goff authored
[ Upstream commit 70a0dec4 ] This fixes wrong-interface signaling on 32-bit platforms for entries created when jiffies > 2^31 + MFC_ASSERT_THRESH. Signed-off-by:
Tom Goff <thomas.goff@ll.mit.edu> Signed-off-by:
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Eric Dumazet authored
[ Upstream commit 21de12ee ] If the packet was dropped by lower qdisc, then we must not access it later. Save qdisc_pkt_len(skb) in a temp variable. Fixes: 2ccccf5f ("net_sched: update hierarchical backlog too") Signed-off-by:
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Herbert Xu authored
[ Upstream commit 962fcef3 ] Blair Steven noticed that ESN in conjunction with UDP encapsulation is broken because we set the temporary ESP header to the wrong spot. This patch fixes this by first of all using the right spot, i.e., 4 bytes off the real ESP header, and then saving this information so that after encryption we can restore it properly. Fixes: 7021b2e1 ("esp4: Switch to new AEAD interface") Reported-by:
Blair Steven <Blair.Steven@alliedtelesis.co.nz> Signed-off-by:
Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by:
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Simon Horman authored
[ Upstream commit d5d8760b ] Since 32b8a8e5 ("sit: add IPv4 over IPv4 support") ipip6_err() may be called for packets whose IP protocol is IPPROTO_IPIP as well as those whose IP protocol is IPPROTO_IPV6. In the case of IPPROTO_IPIP packets the correct protocol value is not passed to ipv4_update_pmtu() or ipv4_redirect(). This patch resolves this problem by using the IP protocol of the packet rather than a hard-coded value. This appears to be consistent with the usage of the protocol of a packet by icmp_socket_deliver() the caller of ipip6_err(). I was able to exercise the redirect case by using a setup where an ICMP redirect was received for the destination of the encapsulated packet. However, it appears that although incorrect the protocol field is not used in this case and thus no problem manifests. On inspection it does not appear that a problem will manifest in the fragmentation needed/update pmtu case either. In short I believe this is a cosmetic fix. None the less, the use of IPPROTO_IPV6 seems wrong and confusing. Reviewed-by:
Dinan Gunawardena <dinan.gunawardena@netronome.com> Signed-off-by:
Simon Horman <simon.horman@netronome.com> Acked-by:
YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by:
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Jason A. Donenfeld authored
[ Upstream commit daddef76 ] The implementation of net_dbg_ratelimited in the CONFIG_DYNAMIC_DEBUG case was added with 2c94b537 ("net: Implement net_dbg_ratelimited() for CONFIG_DYNAMIC_DEBUG case"). The implementation strategy was to take the usual definition of the dynamic_pr_debug macro, but alter it by adding a call to "net_ratelimit()" in the if statement. This is, in fact, the correct approach. However, while doing this, the author of the commit forgot to surround fmt by pr_fmt, resulting in unprefixed log messages appearing in the console. So, this commit adds back the pr_fmt(fmt) invocation, making net_dbg_ratelimited properly consistent across DEBUG, no DEBUG, and DYNAMIC_DEBUG cases, and bringing parity with the behavior of dynamic_pr_debug as well. Fixes: 2c94b537 ("net: Implement net_dbg_ratelimited() for CONFIG_DYNAMIC_DEBUG case") Signed-off-by:
Jason A. Donenfeld <Jason@zx2c4.com> Cc: Tim Bingham <tbingham@akamai.com> Signed-off-by:
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Eric Dumazet authored
[ Upstream commit 6c0d54f1 ] When the qdisc is full, we drop a packet at the head of the queue, queue the current skb and return NET_XMIT_CN Now we track backlog on upper qdiscs, we need to call qdisc_tree_reduce_backlog(), even if the qlen did not change. Fixes: 2ccccf5f ("net_sched: update hierarchical backlog too") Signed-off-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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- 24 Jun, 2016 14 commits
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Greg Kroah-Hartman authored
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Florian Westphal authored
commit d7591f0c upstream. The three variants use same copy&pasted code, condense this into a helper and use that. Make sure info.name is 0-terminated. Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
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Florian Westphal authored
commit 09d96860 upstream. This looks like refactoring, but its also a bug fix. Problem is that the compat path (32bit iptables, 64bit kernel) lacks a few sanity tests that are done in the normal path. For example, we do not check for underflows and the base chain policies. While its possible to also add such checks to the compat path, its more copy&pastry, for instance we cannot reuse check_underflow() helper as e->target_offset differs in the compat case. Other problem is that it makes auditing for validation errors harder; two places need to be checked and kept in sync. At a high level 32 bit compat works like this: 1- initial pass over blob: validate match/entry offsets, bounds checking lookup all matches and targets do bookkeeping wrt. size delta of 32/64bit structures assign match/target.u.kernel pointer (points at kernel implementation, needed to access ->compatsize etc.) 2- allocate memory according to the total bookkeeping size to contain the translated ruleset 3- second pass over original blob: for each entry, copy the 32bit representation to the newly allocated memory. This also does any special match translations (e.g. adjust 32bit to 64bit longs, etc). 4- check if ruleset is free of loops (chase all jumps) 5-first pass over translated blob: call the checkentry function of all matches and targets. The alternative implemented by this patch is to drop steps 3&4 from the compat process, the translation is changed into an intermediate step rather than a full 1:1 translate_table replacement. In the 2nd pass (step #3), change the 64bit ruleset back to a kernel representation, i.e. put() the kernel pointer and restore ->u.user.name . This gets us a 64bit ruleset that is in the format generated by a 64bit iptables userspace -- we can then use translate_table() to get the 'native' sanity checks. This has two drawbacks: 1. we re-validate all the match and target entry structure sizes even though compat translation is supposed to never generate bogus offsets. 2. we put and then re-lookup each match and target. THe upside is that we get all sanity tests and ruleset validations provided by the normal path and can remove some duplicated compat code. iptables-restore time of autogenerated ruleset with 300k chains of form -A CHAIN0001 -m limit --limit 1/s -j CHAIN0002 -A CHAIN0002 -m limit --limit 1/s -j CHAIN0003 shows no noticeable differences in restore times: old: 0m30.796s new: 0m31.521s 64bit: 0m25.674s Signed-off-by:
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Florian Westphal authored
commit 0188346f upstream. Always returned 0. Signed-off-by:
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Florian Westphal authored
commit 329a0807 upstream. Signed-off-by:
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Florian Westphal authored
commit 7d3f843e upstream. Signed-off-by:
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Florian Westphal authored
commit 8dddd327 upstream. Signed-off-by:
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Florian Westphal authored
commit 7b7eba0f upstream. Quoting John Stultz: In updating a 32bit arm device from 4.6 to Linus' current HEAD, I noticed I was having some trouble with networking, and realized that /proc/net/ip_tables_names was suddenly empty. Digging through the registration process, it seems we're catching on the: if (strcmp(t->u.user.name, XT_STANDARD_TARGET) == 0 && target_offset + sizeof(struct xt_standard_target) != next_offset) return -EINVAL; Where next_offset seems to be 4 bytes larger then the offset + standard_target struct size. next_offset needs to be aligned via XT_ALIGN (so we can access all members of ip(6)t_entry struct). This problem didn't show up on i686 as it only needs 4-byte alignment for u64, but iptables userspace on other 32bit arches does insert extra padding. Reported-by:
John Stultz <john.stultz@linaro.org> Tested-by:
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Florian Westphal authored
commit 13631bfc upstream. Validate that all matches (if any) add up to the beginning of the target and that each match covers at least the base structure size. The compat path should be able to safely re-use the function as the structures only differ in alignment; added a BUILD_BUG_ON just in case we have an arch that adds padding as well. Signed-off-by:
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Florian Westphal authored
commit ce683e5f upstream. We're currently asserting that targetoff + targetsize <= nextoff. Extend it to also check that targetoff is >= sizeof(xt_entry). Since this is generic code, add an argument pointing to the start of the match/target, we can then derive the base structure size from the delta. We also need the e->elems pointer in a followup change to validate matches. Signed-off-by:
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Florian Westphal authored
commit 7ed2abdd upstream. We have targets and standard targets -- the latter carries a verdict. The ip/ip6tables validation functions will access t->verdict for the standard targets to fetch the jump offset or verdict for chainloop detection, but this happens before the targets get checked/validated. Thus we also need to check for verdict presence here, else t->verdict can point right after a blob. Spotted with UBSAN while testing malformed blobs. Signed-off-by:
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Florian Westphal authored
commit fc1221b3 upstream. 32bit rulesets have different layout and alignment requirements, so once more integrity checks get added to xt_check_entry_offsets it will reject well-formed 32bit rulesets. Signed-off-by:
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Florian Westphal authored
commit a08e4e19 upstream. The target size includes the size of the xt_entry_target struct. Signed-off-by:
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Florian Westphal authored
commit aa412ba2 upstream. Once we add more sanity testing to xt_check_entry_offsets it becomes relvant if we're expecting a 32bit 'config_compat' blob or a normal one. Since we already have a lot of similar-named functions (check_entry, compat_check_entry, find_and_check_entry, etc.) and the current incarnation is short just fold its contents into the callers. Signed-off-by:
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