- 13 May, 2021 5 commits
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Tao Liu authored
We have observed meters working unexpected if traffic is 3+Gbit/s with multiple connections. now_ms is not pretected by meter->lock, we may get a negative long_delta_ms when another cpu updated meter->used, then: delta_ms = (u32)long_delta_ms; which will be a large value. band->bucket += delta_ms * band->rate; then we get a wrong band->bucket. OpenVswitch userspace datapath has fixed the same issue[1] some time ago, and we port the implementation to kernel datapath. [1] https://patchwork.ozlabs.org/project/openvswitch/patch/20191025114436.9746-1-i.maximets@ovn.org/ Fixes: 96fbc13d ("openvswitch: Add meter infrastructure") Signed-off-by:Tao Liu <thomas.liu@ucloud.cn> Suggested-by:
Ilya Maximets <i.maximets@ovn.org> Reviewed-by:
David S. Miller <davem@davemloft.net>
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Wei Yongjun authored
In case of error, the function devm_platform_ioremap_resource_byname() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: b4cd249a ("net: korina: Use devres functions") Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
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Ayush Sawal authored
This patch maintain the list of active tids and clear all the active connection resources when DETACH notification comes. Fixes: a8c16e8e ("crypto/chcr: move nic TLS functionality to drivers/net") Signed-off-by:
Ayush Sawal <ayush.sawal@chelsio.com> Signed-off-by:
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Christophe JAILLET authored
'bus->mii_bus' has been allocated with 'devm_mdiobus_alloc_size()' in the probe function. So it must not be freed explicitly or there will be a double free. Remove the incorrect 'mdiobus_free' in the error handling path of the probe function and in remove function. Suggested-By:
Andrew Lunn <andrew@lunn.ch> Fixes: 35d2aeac ("phy: mdio-octeon: Use devm_mdiobus_alloc_size()") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by:
Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by:
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Christophe JAILLET authored
'bus->mii_bus' have been allocated with 'devm_mdiobus_alloc_size()' in the probe function. So it must not be freed explicitly or there will be a double free. Remove the incorrect 'mdiobus_free' in the remove function. Fixes: 379d7ac7 ("phy: mdio-thunder: Add driver for Cavium Thunder SoC MDIO buses.") Signed-off-by:
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- 12 May, 2021 14 commits
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Dan Carpenter authored
This error path needs to release some memory and call release_sock(sk); before returning. Fixes: 6919a826 ("Crypto/chtls: add/delete TLS header in driver") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Krzysztof Kozlowski authored
Keep all NFC related patches in existing linux-nfc@lists.01.org mailing list. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by:
Mark Greer <mgreer@animalcreek.com> Signed-off-by:
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Krzysztof Kozlowski authored
The NFC subsystem is orphaned. I am happy to spend some cycles to review the patches, send pull requests and in general keep the NFC subsystem running. Signed-off-by:
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Krzysztof Kozlowski authored
Emails to Clément Perrochaud bounce with permanent error "user does not exist", so remove Clément Perrochaud from NXP-NCI driver maintainers entry. Signed-off-by:
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David S. Miller authored
Merge tag 'linux-can-fixes-for-5.13-20210512' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can Marc Kleine-Budde says: ==================== pull-request: can 2021-05-12 this is a pull request of a single patch for net/master. The patch is by Norbert Slusarek and it fixes a race condition in the CAN ISO-TP socket between isotp_bind() and isotp_setsockopt(). ==================== Signed-off-by:
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Christophe JAILLET authored
If an error occurs after a successful 'pci_ioremap_bar()' call, it must be undone by a corresponding 'pci_iounmap()' call, as already done in the remove function. Fixes: a7e1abad ("ptp: Add clock driver for the OpenCompute TimeCard.") Signed-off-by:
Richard Cochran <richardcochran@gmail.com> Signed-off-by:
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Dan Carpenter authored
This function is called from ethtool_set_rxfh() and "*rss_context" comes from the user. Add some bounds checking to prevent memory corruption. Fixes: 81a43620 ("octeontx2-pf: Add RSS multi group support") Signed-off-by:
Sunil Goutham <sgoutham@marvell.com> Signed-off-by:
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David S. Miller authored
Joakim Zhang says: ==================== net: fixes for fec driver Two small fixes for fec driver. ==================== Signed-off-by: -
Fugang Duan authored
If MAC address read from nvmem efuse by calling .of_get_mac_address(), but nvmem efuse is registered later than the driver, then it return -EPROBE_DEFER value. So modify the driver to support defer probe when read MAC address from nvmem efuse. Signed-off-by:
Fugang Duan <fugang.duan@nxp.com> Signed-off-by:
Joakim Zhang <qiangqing.zhang@nxp.com> Signed-off-by:
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Fugang Duan authored
If the memory allocated for cbd_base is failed, it should free the memory allocated for the queues, otherwise it causes memory leak. And if the memory allocated for the queues is failed, it can return error directly. Fixes: 59d0f746 ("net: fec: init multi queue date structure") Signed-off-by:
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Richard Sanger authored
The packetmmap tx ring should only return timestamps if requested via setsockopt PACKET_TIMESTAMP, as documented. This allows compatibility with non-timestamp aware user-space code which checks tp_status == TP_STATUS_AVAILABLE; not expecting additional timestamp flags to be set in tp_status. Fixes: b9c32fb2 ("packet: if hw/sw ts enabled in rx/tx ring, report which ts we got") Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com> Signed-off-by:
Richard Sanger <rsanger@wand.net.nz> Signed-off-by:
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Michael Chan authored
Jakub Kicinski pointed out that we need to handle ipv6 extension headers and to explicitly check for supported tunnel types in .ndo_features_check(). For ipv6 extension headers, the hardware supports up to 2 ext. headers and each must be <= 64 bytes. For tunneled packets, the supported packets are UDP with supported VXLAN and Geneve ports, GRE, and IPIP. v3: More improvements based on Alexander Duyck's valuable feedback - Remove the jump lable in bnxt_features_check() and restructure it so that the TCP/UDP is check is consolidated in bnxt_exthdr_check(). v2: Add missing step to check inner ipv6 header for UDP and GRE tunnels. Check TCP/UDP next header after skipping ipv6 ext headers for non-tunneled packets and for inner ipv6. (Both feedback from Alexander Duyck) Reviewed-by:Edwin Peer <edwin.peer@broadcom.com> Reviewed-by:
Pavan Chebbi <pavan.chebbi@broadcom.com> Fixes: 1698d600 ("bnxt_en: Implement .ndo_features_check().") Signed-off-by:
Michael Chan <michael.chan@broadcom.com> Reviewed-by:
Alexander Duyck <alexanderduyck@fb.com> Signed-off-by:
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Paolo Abeni authored
If the owing socket is shutting down - e.g. the sock reference count already dropped to 0 and only sk_wmem_alloc is keeping the sock alive, skb_orphan_partial() becomes a no-op. When forwarding packets over veth with GRO enabled, the above causes refcount errors. This change addresses the issue with a plain skb_orphan() call in the critical scenario. Fixes: 9adc89af ("net: let skb_orphan_partial wake-up waiters.") Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
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Norbert Slusarek authored
A race condition was found in isotp_setsockopt() which allows to change socket options after the socket was bound. For the specific case of SF_BROADCAST support, this might lead to possible use-after-free because can_rx_unregister() is not called. Checking for the flag under the socket lock in isotp_bind() and taking the lock in isotp_setsockopt() fixes the issue. Fixes: 921ca574 ("can: isotp: add SF_BROADCAST support for functional addressing") Link: https://lore.kernel.org/r/trinity-e6ae9efa-9afb-4326-84c0-f3609b9b8168-1620773528307@3c-app-gmx-bs06Reported-by:
Norbert Slusarek <nslusarek@gmx.net> Signed-off-by:
Thadeu Lima de Souza Cascardo <cascardo@canonical.com> Signed-off-by:
Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by:
Marc Kleine-Budde <mkl@pengutronix.de>
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- 11 May, 2021 21 commits
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Alex Elder authored
IPA configuration data includes an array of memory region descriptors. That was a fixed-size array at one time, but at some point we started defining it such that it was only as big as required for a given platform. The actual number of entries in the array is recorded in the configuration data along with the array. A loop in ipa_mem_config() still assumes the array has entries for all defined memory region IDs. As a result, this loop can go past the end of the actual array and attempt to write "canary" values based on nonsensical data. Fix this, by stashing the number of entries in the array, and using that rather than IPA_MEM_COUNT in the initialization loop found in ipa_mem_config(). The only remaining use of IPA_MEM_COUNT is in a validation check to ensure configuration data doesn't have too many entries. That's fine for now. Fixes: 3128aae8 ("net: ipa: redefine struct ipa_mem_data") Signed-off-by:
Alex Elder <elder@linaro.org> Signed-off-by:
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Shannon Nelson authored
When IONIC=y and PTP_1588_CLOCK=m were set in the .config file the driver link failed with undefined references. We add the dependancy depends on PTP_1588_CLOCK || !PTP_1588_CLOCK to clear this up. If PTP_1588_CLOCK=m, the depends limits IONIC to =m (or disabled). If PTP_1588_CLOCK is disabled, IONIC can be any of y/m/n. Fixes: 61db421d ("ionic: link in the new hw timestamp code") Reported-by:
kernel test robot <lkp@intel.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Allen Hubbe <allenbh@pensando.io> Signed-off-by:
Shannon Nelson <snelson@pensando.io> Acked-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
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Paolo Abeni authored
Maxim reported several issues when forcing a TCP transparent proxy to use the MPTCP protocol for the inbound connections. He also provided a clean reproducer. The problem boils down to 'mptcp_frag_can_collapse_to()' assuming that only MPTCP will use the given page_frag. If others - e.g. the plain TCP protocol - allocate page fragments, we can end-up re-using already allocated memory for mptcp_data_frag. Fix the issue ensuring that the to-be-expanded data fragment is located at the current page frag end. v1 -> v2: - added missing fixes tag (Mat) Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/178Reported-and-tested-by:
Maxim Galaganov <max@internet.ru> Fixes: 18b683bf ("mptcp: queue data for mptcp level retransmission") Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller authored
Daniel Borkmann says: ==================== pull-request: bpf 2021-05-11 The following pull-request contains BPF updates for your *net* tree. We've added 13 non-merge commits during the last 8 day(s) which contain a total of 21 files changed, 817 insertions(+), 382 deletions(-). The main changes are: 1) Fix multiple ringbuf bugs in particular to prevent writable mmap of read-only pages, from Andrii Nakryiko & Thadeu Lima de Souza Cascardo. 2) Fix verifier alu32 known-const subregister bound tracking for bitwise operations and/or/xor, from Daniel Borkmann. 3) Reject trampoline attachment for functions with variable arguments, and also add a deny list of other forbidden functions, from Jiri Olsa. 4) Fix nested bpf_bprintf_prepare() calls used by various helpers by switching to per-CPU buffers, from Florent Revest. 5) Fix kernel compilation with BTF debug info on ppc64 due to pahole missing TCP-CC functions like cubictcp_init, from Martin KaFai Lau. 6) Add a kconfig entry to provide an option to disallow unprivileged BPF by default, from Daniel Borkmann. 7) Fix libbpf compilation for older libelf when GELF_ST_VISIBILITY() macro is not available, from Arnaldo Carvalho de Melo. 8) Migrate test_tc_redirect to test_progs framework as prep work for upcoming skb_change_head() fix & selftest, from Jussi Maki. 9) Fix a libbpf segfault in add_dummy_ksym_var() if BTF is not present, from Ian Rogers. 10) Fix tx_only micro-benchmark in xdpsock BPF sample with proper frame size, from Magnus Karlsson. ==================== Signed-off-by: -
David S. Miller authored
Merge tag 'mac80211-for-net-2021-05-11' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== pull-request: mac80211 2021-05-11 So exciting times, for the first pull request for fixes I have a bunch of security things that have been under embargo for a while - see more details in the tag below, and at the patch posting message I linked to. I organized with Kalle to just have a single set of fixes for mac80211 and ath10k/ath11k, we don't know about any of the other vendors (the mac80211 + already released firmware is sufficient to fix iwlwifi.) Please pull and let me know if there's any problem. Several security issues in the 802.11 implementations were found by Mathy Vanhoef (New York University Abu Dhabi), and this contains the fixes developed for mac80211 and specifically Qualcomm drivers, I'm sending this together (as agreed with Kalle) to have just a single set of patches for now. We don't know about other vendors though. More details in the patch posting: https://lore.kernel.org/r/20210511180259.159598-1-johannes@sipsolutions.net ==================== Signed-off-by:
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Joakim Zhang authored
Both get and set WoL will check device_can_wakeup(), if MAC supports PMT, it will set device wakeup capability. After commit 1d8e5b0f ("net: stmmac: Support WOL with phy"), device wakeup capability will be overwrite in stmmac_init_phy() according to phy's Wol feature. If phy doesn't support WoL, then MAC will lose wakeup capability. To fix this issue, only overwrite device wakeup capability when MAC doesn't support PMT. For STMMAC now driver checks MAC's WoL capability if MAC supports PMT, if not support, driver will check PHY's WoL capability. Fixes: 1d8e5b0f ("net: stmmac: Support WOL with phy") Reviewed-by:
Jisheng Zhang <Jisheng.Zhang@synaptics.com> Signed-off-by:
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Martin KaFai Lau authored
During the discussion in [0]. It was pointed out that static functions in ppc64 is prefixed with ".". For example, the 'readelf -s vmlinux.ppc': 89326: c000000001383280 24 NOTYPE LOCAL DEFAULT 31 cubictcp_init 89327: c000000000c97c50 168 FUNC LOCAL DEFAULT 2 .cubictcp_init The one with FUNC type is ".cubictcp_init" instead of "cubictcp_init". The "." seems to be done by arch/powerpc/include/asm/ppc_asm.h. This caused that pahole cannot generate the BTF for these tcp-cc kernel functions because pahole only captures the FUNC type and "cubictcp_init" is not. It then failed the kernel compilation in ppc64. This behavior is only reported in ppc64 so far. I tried arm64, s390, and sparc64 and did not observe this "." prefix and NOTYPE behavior. Since the kfunc call is only supported in the x86_64 and x86_32 JIT, this patch limits those tcp-cc functions to x86 only to avoid unnecessary compilation issue in other ARCHs. In the future, we can examine if it is better to change all those functions from static to extern. [0] https://lore.kernel.org/bpf/4e051459-8532-7b61-c815-f3435767f8a0@kernel.org/ Fixes: e78aea8b ("bpf: tcp: Put some tcp cong functions in allowlist for bpf-tcp-cc") Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net> Cc: Michal Suchánek <msuchanek@suse.de> Cc: Jiri Slaby <jslaby@suse.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/bpf/20210508005011.3863757-1-kafai@fb.com
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Jussi Maki authored
As discussed in [0], this ports test_tc_redirect.sh to the test_progs framework and removes the old test. This makes it more in line with rest of the tests and makes it possible to run this test case with vmtest.sh and under the bpf CI. The upcoming skb_change_head() helper fix in [0] is depending on it and extending the test case to redirect a packet from L3 device to veth. [0] https://lore.kernel.org/bpf/20210427135550.807355-1-joamaki@gmail.comSigned-off-by:
Jussi Maki <joamaki@gmail.com> Signed-off-by:
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Arnaldo Carvalho de Melo authored
Where that macro isn't available. Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
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Florent Revest authored
The bpf_seq_printf, bpf_trace_printk and bpf_snprintf helpers share one per-cpu buffer that they use to store temporary data (arguments to bprintf). They "get" that buffer with try_get_fmt_tmp_buf and "put" it by the end of their scope with bpf_bprintf_cleanup. If one of these helpers gets called within the scope of one of these helpers, for example: a first bpf program gets called, uses bpf_trace_printk which calls raw_spin_lock_irqsave which is traced by another bpf program that calls bpf_snprintf, then the second "get" fails. Essentially, these helpers are not re-entrant. They would return -EBUSY and print a warning message once. This patch triples the number of bprintf buffers to allow three levels of nesting. This is very similar to what was done for tracepoints in "9594dc3c bpf: fix nested bpf tracepoints with per-cpu data" Fixes: d9c9e4db ("bpf: Factorize bpf_trace_printk and bpf_seq_printf") Reported-by: syzbot+63122d0bc347f18c1884@syzkaller.appspotmail.com Signed-off-by:
Florent Revest <revest@chromium.org> Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210511081054.2125874-1-revest@chromium.org
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Jiri Olsa authored
The recursion check in __bpf_prog_enter and __bpf_prog_exit leaves some (not inlined) functions unprotected: In __bpf_prog_enter: - migrate_disable is called before prog->active is checked In __bpf_prog_exit: - migrate_enable,rcu_read_unlock_strict are called after prog->active is decreased When attaching trampoline to them we get panic like: traps: PANIC: double fault, error_code: 0x0 double fault: 0000 [#1] SMP PTI RIP: 0010:__bpf_prog_enter+0x4/0x50 ... Call Trace: <IRQ> bpf_trampoline_6442466513_0+0x18/0x1000 migrate_disable+0x5/0x50 __bpf_prog_enter+0x9/0x50 bpf_trampoline_6442466513_0+0x18/0x1000 migrate_disable+0x5/0x50 __bpf_prog_enter+0x9/0x50 bpf_trampoline_6442466513_0+0x18/0x1000 migrate_disable+0x5/0x50 __bpf_prog_enter+0x9/0x50 bpf_trampoline_6442466513_0+0x18/0x1000 migrate_disable+0x5/0x50 ... Fixing this by adding deny list of btf ids for tracing programs and checking btf id during program verification. Adding above functions to this list. Suggested-by:Jiri Olsa <jolsa@kernel.org> Signed-off-by:
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Daniel Borkmann authored
Add a kconfig knob which allows for unprivileged bpf to be disabled by default. If set, the knob sets /proc/sys/kernel/unprivileged_bpf_disabled to value of 2. This still allows a transition of 2 -> {0,1} through an admin. Similarly, this also still keeps 1 -> {1} behavior intact, so that once set to permanently disabled, it cannot be undone aside from a reboot. We've also added extra2 with max of 2 for the procfs handler, so that an admin still has a chance to toggle between 0 <-> 2. Either way, as an additional alternative, applications can make use of CAP_BPF that we added a while ago. Signed-off-by: -
Daniel Borkmann authored
Right now, all core BPF related options are scattered in different Kconfig locations mainly due to historic reasons. Moving forward, lets add a proper subsystem entry under ... General setup ---> BPF subsystem ---> ... in order to have all knobs in a single location and thus ease BPF related configuration. Networking related bits such as sockmap are out of scope for the general setup and therefore better suited to remain in net/Kconfig. Signed-off-by: -
Sriram R authored
Fragmentation is used only with unicast frames. Drop multicast fragments to avoid any undesired behavior. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1 v2 Cc: stable@vger.kernel.org Signed-off-by:
Sriram R <srirrama@codeaurora.org> Signed-off-by:
Jouni Malinen <jouni@codeaurora.org> Link: https://lore.kernel.org/r/20210511200110.1d53bfd20a8b.Ibb63283051bb5e2c45951932c6e1f351d5a73dc3@changeidSigned-off-by:
Johannes Berg <johannes.berg@intel.com>
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Sriram R authored
Currently the fragment cache setup during peer assoc is cleared only during peer delete. In case a key reinstallation happens with the same peer, the same fragment cache with old fragments added before key installation could be clubbed with fragments received after. This might be exploited to mix fragments of different data resulting in a proper unintended reassembled packet to be passed up the stack. Hence flush the fragment cache on every key installation to prevent potential attacks (CVE-2020-24587). Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1 v2 Cc: stable@vger.kernel.org Signed-off-by:
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Sriram R authored
In certain scenarios a normal MSDU can be received as an A-MSDU when the A-MSDU present bit of a QoS header gets flipped during reception. Since this bit is unauthenticated, the hardware crypto engine can pass the frame to the driver without any error indication. This could result in processing unintended subframes collected in the A-MSDU list. Hence, validate A-MSDU list by checking if the first frame has a valid subframe header. Comparing the non-aggregated MSDU and an A-MSDU, the fields of the first subframe DA matches the LLC/SNAP header fields of a normal MSDU. In order to avoid processing such frames, add a validation to filter such A-MSDU frames where the first subframe header DA matches with the LLC/SNAP header pattern. Tested-on: QCA9984 hw1.0 PCI 10.4-3.10-00047 Cc: stable@vger.kernel.org Signed-off-by:
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Wen Gong authored
TKIP Michael MIC was not verified properly for PCIe cases since the validation steps in ieee80211_rx_h_michael_mic_verify() in mac80211 did not get fully executed due to unexpected flag values in ieee80211_rx_status. Fix this by setting the flags property to meet mac80211 expectations for performing Michael MIC validation there. This fixes CVE-2020-26141. It does the same as ath10k_htt_rx_proc_rx_ind_hl() for SDIO which passed MIC verification case. This applies only to QCA6174/QCA9377 PCIe. Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1 Cc: stable@vger.kernel.org Signed-off-by:
Wen Gong <wgong@codeaurora.org> Signed-off-by:
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Wen Gong authored
When the discard flag is set by the firmware for an MPDU, it should be dropped. This allows a mitigation for CVE-2020-24588 to be implemented in the firmware. Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00049 Cc: stable@vger.kernel.org Signed-off-by:
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Wen Gong authored
Fragmentation is not used with multicast frames. Discard unexpected fragments with multicast DA. This fixes CVE-2020-26145. Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00049 Cc: stable@vger.kernel.org Signed-off-by:
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Wen Gong authored
Fragmentation is not used with multicast frames. Discard unexpected fragments with multicast DA. This fixes CVE-2020-26145. Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1 Cc: stable@vger.kernel.org Signed-off-by:
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Wen Gong authored
PN replay check for not fragmented frames is finished in the firmware, but this was not done for fragmented frames when ath10k is used with QCA6174/QCA6377 PCIe. mac80211 has the function ieee80211_rx_h_defragment() for PN replay check for fragmented frames, but this does not get checked with QCA6174 due to the ieee80211_has_protected() condition not matching the cleared Protected bit case. Validate the PN of received fragmented frames within ath10k when CCMP is used and drop the fragment if the PN is not correct (incremented by exactly one from the previous fragment). This applies only for QCA6174/QCA6377 PCIe. Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1 Cc: stable@vger.kernel.org Signed-off-by:
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