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2022-11-25io_uring: make poll refs more robustPavel Begunkov
poll_refs carry two functions, the first is ownership over the request. The second is notifying the io_poll_check_events() that there was an event but wake up couldn't grab the ownership, so io_poll_check_events() should retry. We want to make poll_refs more robust against overflows. Instead of always incrementing it, which covers two purposes with one atomic, check if poll_refs is elevated enough and if so set a retry flag without attempts to grab ownership. The gap between the bias check and following atomics may seem racy, but we don't need it to be strict. Moreover there might only be maximum 4 parallel updates: by the first and the second poll entries, __io_arm_poll_handler() and cancellation. From those four, only poll wake ups may be executed multiple times, but they're protected by a spin. Cc: stable@vger.kernel.org Reported-by: Lin Ma <linma@zju.edu.cn> Fixes: aa43477b04025 ("io_uring: poll rework") Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/c762bc31f8683b3270f3587691348a7119ef9c9d.1668963050.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-11-25io_uring: cmpxchg for poll arm refs releasePavel Begunkov
Replace atomically substracting the ownership reference at the end of arming a poll with a cmpxchg. We try to release ownership by setting 0 assuming that poll_refs didn't change while we were arming. If it did change, we keep the ownership and use it to queue a tw, which is fully capable to process all events and (even tolerates spurious wake ups). It's a bit more elegant as we reduce races b/w setting the cancellation flag and getting refs with this release, and with that we don't have to worry about any kinds of underflows. It's not the fastest path for polling. The performance difference b/w cmpxchg and atomic dec is usually negligible and it's not the fastest path. Cc: stable@vger.kernel.org Fixes: aa43477b04025 ("io_uring: poll rework") Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/0c95251624397ea6def568ff040cad2d7926fd51.1668963050.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-11-25wifi: mac8021: fix possible oob access in ieee80211_get_rate_durationLorenzo Bianconi
Fix possible out-of-bound access in ieee80211_get_rate_duration routine as reported by the following UBSAN report: UBSAN: array-index-out-of-bounds in net/mac80211/airtime.c:455:47 index 15 is out of range for type 'u16 [12]' CPU: 2 PID: 217 Comm: kworker/u32:10 Not tainted 6.1.0-060100rc3-generic Hardware name: Acer Aspire TC-281/Aspire TC-281, BIOS R01-A2 07/18/2017 Workqueue: mt76 mt76u_tx_status_data [mt76_usb] Call Trace: <TASK> show_stack+0x4e/0x61 dump_stack_lvl+0x4a/0x6f dump_stack+0x10/0x18 ubsan_epilogue+0x9/0x43 __ubsan_handle_out_of_bounds.cold+0x42/0x47 ieee80211_get_rate_duration.constprop.0+0x22f/0x2a0 [mac80211] ? ieee80211_tx_status_ext+0x32e/0x640 [mac80211] ieee80211_calc_rx_airtime+0xda/0x120 [mac80211] ieee80211_calc_tx_airtime+0xb4/0x100 [mac80211] mt76x02_send_tx_status+0x266/0x480 [mt76x02_lib] mt76x02_tx_status_data+0x52/0x80 [mt76x02_lib] mt76u_tx_status_data+0x67/0xd0 [mt76_usb] process_one_work+0x225/0x400 worker_thread+0x50/0x3e0 ? process_one_work+0x400/0x400 kthread+0xe9/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30 Fixes: db3e1c40cf2f ("mac80211: Import airtime calculation code from mt76") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-11-25wifi: cfg80211: don't allow multi-BSSID in S1GJohannes Berg
In S1G beacon frames there shouldn't be multi-BSSID elements since that's not supported, remove that to avoid a potential integer underflow and/or misparsing the frames due to the different length of the fixed part of the frame. While at it, initialize non_tx_data so we don't send garbage values to the user (even if it doesn't seem to matter now.) Reported-and-tested-by: Sönke Huster <shuster@seemoo.tu-darmstadt.de> Fixes: 9eaffe5078ca ("cfg80211: convert S1G beacon to scan results") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-11-25wifi: cfg80211: fix buffer overflow in elem comparisonJohannes Berg
For vendor elements, the code here assumes that 5 octets are present without checking. Since the element itself is already checked to fit, we only need to check the length. Reported-and-tested-by: Sönke Huster <shuster@seemoo.tu-darmstadt.de> Fixes: 0b8fb8235be8 ("cfg80211: Parsing of Multiple BSSID information in scanning") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-11-25net: loopback: use NET_NAME_PREDICTABLE for name_assign_typeRasmus Villemoes
When the name_assign_type attribute was introduced (commit 685343fc3ba6, "net: add name_assign_type netdev attribute"), the loopback device was explicitly mentioned as one which would make use of NET_NAME_PREDICTABLE: The name_assign_type attribute gives hints where the interface name of a given net-device comes from. These values are currently defined: ... NET_NAME_PREDICTABLE: The ifname has been assigned by the kernel in a predictable way that is guaranteed to avoid reuse and always be the same for a given device. Examples include statically created devices like the loopback device [...] Switch to that so that reading /sys/class/net/lo/name_assign_type produces something sensible instead of returning -EINVAL. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-25net: fec: don't reset irq coalesce settings to defaults on "ip link up"Rasmus Villemoes
Currently, when a FEC device is brought up, the irq coalesce settings are reset to their default values (1000us, 200 frames). That's unexpected, and breaks for example use of an appropriate .link file to make systemd-udev apply the desired settings (https://www.freedesktop.org/software/systemd/man/systemd.link.html), or any other method that would do a one-time setup during early boot. Refactor the code so that fec_restart() instead uses fec_enet_itr_coal_set(), which simply applies the settings that are stored in the private data, and initialize that private data with the default values. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-25octeontx2-pf: Fix pfc_alloc_status array overflowSuman Ghosh
This patch addresses pfc_alloc_status array overflow occurring for send queue index value greater than PFC priority. Queue index can be greater than supported PFC priority for multiple scenarios (e.g. QoS, during non zero SMQ allocation for a PF/VF). In those scenarios the API should return default tx scheduler '0'. This is causing mbox errors as otx2_get_smq_idx returing invalid smq value. Fixes: 99c969a83d82 ("octeontx2-pf: Add egress PFC support") Signed-off-by: Suman Ghosh <sumang@marvell.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-25net: stmmac: Set MAC's flow control register to reflect current settingsGoh, Wei Sheng
Currently, pause frame register GMAC_RX_FLOW_CTRL_RFE is not updated correctly when 'ethtool -A <IFACE> autoneg off rx off tx off' command is issued. This fix ensures the flow control change is reflected directly in the GMAC_RX_FLOW_CTRL_RFE register. Fixes: 46f69ded988d ("net: stmmac: Use resolved link config in mac_link_up()") Cc: <stable@vger.kernel.org> # 5.10.x Signed-off-by: Goh, Wei Sheng <wei.sheng.goh@intel.com> Signed-off-by: Noor Azura Ahmad Tarmizi <noor.azura.ahmad.tarmizi@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-25aquantia: Do not purge addresses when setting the number of ringsIzabela Bakollari
IPV6 addresses are purged when setting the number of rx/tx rings using ethtool -G. The function aq_set_ringparam calls dev_close, which removes the addresses. As a solution, call an internal function (aq_ndev_close). Fixes: c1af5427954b ("net: aquantia: Ethtool based ring size configuration") Signed-off-by: Izabela Bakollari <ibakolla@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-25qed: avoid defines prefixed with CONFIGLukas Bulwahn
Defines prefixed with "CONFIG" should be limited to proper Kconfig options, that are introduced in a Kconfig file. Here, constants for bitmap indices of some configs are defined and these defines begin with the config's name, and are suffixed with BITMAP_IDX. To avoid defines prefixed with "CONFIG", name these constants BITMAP_IDX_FOR_CONFIG_XYZ instead of CONFIG_XYZ_BITMAP_IDX. No functional change. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-25qlcnic: fix sleep-in-atomic-context bugs caused by msleepDuoming Zhou
The watchdog timer is used to monitor whether the process of transmitting data is timeout. If we use qlcnic driver, the dev_watchdog() that is the timer handler of watchdog timer will call qlcnic_tx_timeout() to process the timeout. But the qlcnic_tx_timeout() calls msleep(), as a result, the sleep-in-atomic-context bugs will happen. The processes are shown below: (atomic context) dev_watchdog qlcnic_tx_timeout qlcnic_83xx_idc_request_reset qlcnic_83xx_lock_driver msleep --------------------------- (atomic context) dev_watchdog qlcnic_tx_timeout qlcnic_83xx_idc_request_reset qlcnic_83xx_lock_driver qlcnic_83xx_recover_driver_lock msleep Fix by changing msleep() to mdelay(), the mdelay() is busy-waiting and the bugs could be mitigated. Fixes: 629263acaea3 ("qlcnic: 83xx CNA inter driver communication mechanism") Signed-off-by: Duoming Zhou <duoming@zju.edu.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-25zonefs: Fix active zone accountingDamien Le Moal
If a file zone transitions to the offline or readonly state from an active state, we must clear the zone active flag and decrement the active seq file counter. Do so in zonefs_account_active() using the new zonefs inode flags ZONEFS_ZONE_OFFLINE and ZONEFS_ZONE_READONLY. These flags are set if necessary in zonefs_check_zone_condition() based on the result of report zones operation after an IO error. Fixes: 87c9ce3ffec9 ("zonefs: Add active seq file accounting") Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
2022-11-25Merge tag 'linux-can-fixes-for-6.1-20221124' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can Marc Kleine-Budde says: ==================== linux-can-fixes-for-6.1-20221124 this is a pull request of 8 patches for net/master. Ziyang Xuan contributes a patch for the can327, fixing a potential SKB leak when the netdev is down. Heiko Schocher's patch for the sja1000 driver fixes the width of the definition of the OCR_MODE_MASK. Zhang Changzhong contributes 4 patches. In the sja1000_isa, cc770, and m_can_pci drivers the error path in the probe() function and in case of the etas_es58x a function that is called by probe() are fixed. Jiasheng Jiang add a missing check for the return value of the devm_clk_get() in the m_can driver. Yasushi SHOJI's patch for the mcba_usb fixes setting of the external termination resistor. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-25vfs: fix copy_file_range() averts filesystem freeze protectionAmir Goldstein
Commit 868f9f2f8e00 ("vfs: fix copy_file_range() regression in cross-fs copies") removed fallback to generic_copy_file_range() for cross-fs cases inside vfs_copy_file_range(). To preserve behavior of nfsd and ksmbd server-side-copy, the fallback to generic_copy_file_range() was added in nfsd and ksmbd code, but that call is missing sb_start_write(), fsnotify hooks and more. Ideally, nfsd and ksmbd would pass a flag to vfs_copy_file_range() that will take care of the fallback, but that code would be subtle and we got vfs_copy_file_range() logic wrong too many times already. Instead, add a flag to explicitly request vfs_copy_file_range() to perform only generic_copy_file_range() and let nfsd and ksmbd use this flag only in the fallback path. This choise keeps the logic changes to minimum in the non-nfsd/ksmbd code paths to reduce the risk of further regressions. Fixes: 868f9f2f8e00 ("vfs: fix copy_file_range() regression in cross-fs copies") Tested-by: Namjae Jeon <linkinjeon@kernel.org> Tested-by: Luis Henriques <lhenriques@suse.de> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-11-25Merge tag 'amd-drm-fixes-6.1-2022-11-23' of ↵Dave Airlie
https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.1-2022-11-23: amdgpu: - DCN 3.1.4 fixes - DP MST DSC deadlock fixes - HMM userptr fixes - Fix Aldebaran CU occupancy reporting - GFX11 fixes - PSP suspend/resume fix - DCE12 KASAN fix - DCN 3.2.x fixes - Rotated cursor fix - SMU 13.x fix - DELL platform suspend/resume fixes - VCN4 SR-IOV fix - Display regression fix for polled connectors Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221123143453.8977-1-alexander.deucher@amd.com
2022-11-25Merge tag 'drm-intel-fixes-2022-11-24' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - Fix GVT KVM reference count handling (Sean Christopherson) - Never purge busy TTM objects (Matthew Auld) - Fix warn in intel_display_power_*_domain() functions (Imre Deak) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/Y38u44hb1LZfZC+M@tursulin-desk
2022-11-25Merge tag 'drm-misc-fixes-2022-11-24' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes drm-misc-fixes for v6.1-rc7: - Another amdgpu gang submit fix. - Use dma_fence_unwrap_for_each when importing sync files. - Fix race in dma_heap_add(). - Fix use of uninitialized memory in logo. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/a5721505-4823-98ef-7d6f-0ea478221391@linux.intel.com
2022-11-24Merge tag 'net-6.1-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from rxrpc, netfilter and xfrm. Current release - regressions: - dccp/tcp: fix bhash2 issues related to WARN_ON() in inet_csk_get_port() - l2tp: don't sleep and disable BH under writer-side sk_callback_lock - eth: ice: fix handling of burst tx timestamps Current release - new code bugs: - xfrm: squelch kernel warning in case XFRM encap type is not available - eth: mlx5e: fix possible race condition in macsec extended packet number update routine Previous releases - regressions: - neigh: decrement the family specific qlen - netfilter: fix ipset regression - rxrpc: fix race between conn bundle lookup and bundle removal [ZDI-CAN-15975] - eth: iavf: do not restart tx queues after reset task failure - eth: nfp: add port from netdev validation for EEPROM access - eth: mtk_eth_soc: fix potential memory leak in mtk_rx_alloc() Previous releases - always broken: - tipc: set con sock in tipc_conn_alloc - nfc: - fix potential memory leaks - fix incorrect sizing calculations in EVT_TRANSACTION - eth: octeontx2-af: fix pci device refcount leak - eth: bonding: fix ICMPv6 header handling when receiving IPv6 messages - eth: prestera: add missing unregister_netdev() in prestera_port_create() - eth: tsnep: fix rotten packets Misc: - usb: qmi_wwan: add support for LARA-L6" * tag 'net-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (95 commits) net: thunderx: Fix the ACPI memory leak octeontx2-af: Fix reference count issue in rvu_sdp_init() net: altera_tse: release phylink resources in tse_shutdown() virtio_net: Fix probe failed when modprobe virtio_net net: wwan: t7xx: Fix the ACPI memory leak octeontx2-pf: Add check for devm_kcalloc net: enetc: preserve TX ring priority across reconfiguration net: marvell: prestera: add missing unregister_netdev() in prestera_port_create() nfc: st-nci: fix incorrect sizing calculations in EVT_TRANSACTION nfc: st-nci: fix memory leaks in EVT_TRANSACTION nfc: st-nci: fix incorrect validating logic in EVT_TRANSACTION Documentation: networking: Update generic_netlink_howto URL net/cdc_ncm: Fix multicast RX support for CDC NCM devices with ZLP net: usb: qmi_wwan: add u-blox 0x1342 composition l2tp: Don't sleep and disable BH under writer-side sk_callback_lock net: dm9051: Fix missing dev_kfree_skb() in dm9051_loop_rx() arcnet: fix potential memory leak in com20020_probe() ipv4: Fix error return code in fib_table_insert() net: ethernet: mtk_eth_soc: fix memory leak in error path net: ethernet: mtk_eth_soc: fix resource leak in error path ...
2022-11-24Merge tag 'soc-fixes-6.1-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Arnd Bergmann: "There are a bunch of late fixes that just came in, in particular a longer series for Rockchips devicetree files, but most of those just address cosmetic errors that were found during the binding validation. There are a couple of code changes: - A regression fix to the IXP42x PCI bus - A fix for a memory leak on optee, and another one for mach-mxs - Two fixes for the sunxi rsb bus driver, to address problems with the shutdown logic The rest are small but important devicetree fixes for a number of individual boards, addressing issues across all platforms: - arm global timer on older rockchip SoCs is unstable and needs to be disabled in favor of a more reliable clocksource - Corrections to fix bluetooth, mmc, and networking on a few Rockchip boards - at91/sam9g20ek UDC needs a pin controller config change - an omap board runs into mmc probe errors because of regulator nodes in the wrong place - imx8mp-evk has a minor inaccuracy with its pin config, but without user visible impact - The Allwinner H6 Hantro G2 video decoder needs an IOMMU reference to prevent the driver from crashing" * tag 'soc-fixes-6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (30 commits) bus: ixp4xx: Don't touch bit 7 on IXP42x ARM: dts: imx6q-prti6q: Fix ref/tcxo-clock-frequency properties arm64: dts: imx8mp-evk: correct pcie pad settings ARM: mxs: fix memory leak in mxs_machine_init() ARM: dts: at91: sam9g20ek: enable udc vbus gpio pinctrl tee: optee: fix possible memory leak in optee_register_device() arm64: dts: allwinner: h6: Add IOMMU reference to Hantro G2 media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference property bus: sunxi-rsb: Support atomic transfers bus: sunxi-rsb: Remove the shutdown callback ARM: dts: rockchip: disable arm_global_timer on rk3066 and rk3188 arm64: dts: rockchip: Fix Pine64 Quartz4-B PMIC interrupt ARM: dts: am335x-pcm-953: Define fixed regulators in root node ARM: dts: rockchip: rk3188: fix lcdc1-rgb24 node name arm64: dts: rockchip: fix ir-receiver node names ARM: dts: rockchip: fix ir-receiver node names arm64: dts: rockchip: fix adc-keys sub node names ARM: dts: rockchip: fix adc-keys sub node names arm: dts: rockchip: remove clock-frequency from rtc arm: dts: rockchip: fix node name for hym8563 rtc ...
2022-11-24Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "Two fixes for 6.1: - fix stacktraces for tracepoint events in Thumb2 mode - fix for noMMU ZERO_PAGE() implementation" * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9266/1: mm: fix no-MMU ZERO_PAGE() implementation ARM: 9251/1: perf: Fix stacktraces for tracepoint events in THUMB2 kernels
2022-11-24Merge tag 'loongarch-fixes-6.1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson Pull LoongArch fixes from Huacai Chen: "Fix two build warnings, a copy_thread() bug, two page table manipulation bugs, and some trivial cleanups" * tag 'loongarch-fixes-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: docs/zh_CN/LoongArch: Fix wrong description of FPRs Note LoongArch: Fix unsigned comparison with less than zero LoongArch: Set _PAGE_DIRTY only if _PAGE_MODIFIED is set in {pmd,pte}_mkwrite() LoongArch: Set _PAGE_DIRTY only if _PAGE_WRITE is set in {pmd,pte}_mkdirty() LoongArch: Clear FPU/SIMD thread info flags for kernel thread LoongArch: SMP: Change prefix from loongson3 to loongson LoongArch: Combine acpi_boot_table_init() and acpi_boot_init() LoongArch: Makefile: Use "grep -E" instead of "egrep"
2022-11-24Merge tag 'ext4_for_linus_stable2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "Fix a regression in the lazytime code that was introduced in v6.1-rc1, and a use-after-free that can be triggered by a maliciously corrupted file system" * tag 'ext4_for_linus_stable2' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: fs: do not update freeing inode i_io_list ext4: fix use-after-free in ext4_ext_shift_extents
2022-11-24wifi: wilc1000: validate number of channelsPhil Turnbull
There is no validation of 'e->no_of_channels' which can trigger an out-of-bounds write in the following 'memset' call. Validate that the number of channels does not extends beyond the size of the channel list element. Signed-off-by: Phil Turnbull <philipturnbull@github.com> Tested-by: Ajay Kathat <ajay.kathat@microchip.com> Acked-by: Ajay Kathat <ajay.kathat@microchip.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20221123153543.8568-5-philipturnbull@github.com
2022-11-24wifi: wilc1000: validate length of IEEE80211_P2P_ATTR_CHANNEL_LIST attributePhil Turnbull
Validate that the IEEE80211_P2P_ATTR_CHANNEL_LIST attribute contains enough space for a 'struct wilc_attr_oper_ch'. If the attribute is too small then it can trigger an out-of-bounds write later in the function. 'struct wilc_attr_oper_ch' is variable sized so also check 'attr_len' does not extend beyond the end of 'buf'. Signed-off-by: Phil Turnbull <philipturnbull@github.com> Tested-by: Ajay Kathat <ajay.kathat@microchip.com> Acked-by: Ajay Kathat <ajay.kathat@microchip.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20221123153543.8568-4-philipturnbull@github.com
2022-11-24wifi: wilc1000: validate length of IEEE80211_P2P_ATTR_OPER_CHANNEL attributePhil Turnbull
Validate that the IEEE80211_P2P_ATTR_OPER_CHANNEL attribute contains enough space for a 'struct struct wilc_attr_oper_ch'. If the attribute is too small then it triggers an out-of-bounds write later in the function. Signed-off-by: Phil Turnbull <philipturnbull@github.com> Tested-by: Ajay Kathat <ajay.kathat@microchip.com> Acked-by: Ajay Kathat <ajay.kathat@microchip.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20221123153543.8568-3-philipturnbull@github.com
2022-11-24wifi: wilc1000: validate pairwise and authentication suite offsetsPhil Turnbull
There is no validation of 'offset' which can trigger an out-of-bounds read when extracting RSN capabilities. Signed-off-by: Phil Turnbull <philipturnbull@github.com> Tested-by: Ajay Kathat <ajay.kathat@microchip.com> Acked-by: Ajay Kathat <ajay.kathat@microchip.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20221123153543.8568-2-philipturnbull@github.com
2022-11-24can: mcba_usb: Fix termination command argumentYasushi SHOJI
Microchip USB Analyzer can activate the internal termination resistors by setting the "termination" option ON, or OFF to to deactivate them. As I've observed, both with my oscilloscope and captured USB packets below, you must send "0" to turn it ON, and "1" to turn it OFF. From the schematics in the user's guide, I can confirm that you must drive the CAN_RES signal LOW "0" to activate the resistors. Reverse the argument value of usb_msg.termination to fix this. These are the two commands sequence, ON then OFF. > No. Time Source Destination Protocol Length Info > 1 0.000000 host 1.3.1 USB 46 URB_BULK out > > Frame 1: 46 bytes on wire (368 bits), 46 bytes captured (368 bits) > USB URB > Leftover Capture Data: a80000000000000000000000000000000000a8 > > No. Time Source Destination Protocol Length Info > 2 4.372547 host 1.3.1 USB 46 URB_BULK out > > Frame 2: 46 bytes on wire (368 bits), 46 bytes captured (368 bits) > USB URB > Leftover Capture Data: a80100000000000000000000000000000000a9 Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com> Link: https://lore.kernel.org/all/20221124152504.125994-1-yashi@spacecubics.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-11-24can: m_can: Add check for devm_clk_getJiasheng Jiang
Since the devm_clk_get may return error, it should be better to add check for the cdev->hclk, as same as cdev->cclk. Fixes: f524f829b75a ("can: m_can: Create a m_can platform framework") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Link: https://lore.kernel.org/all/20221123063651.26199-1-jiasheng@iscas.ac.cn Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-11-24can: m_can: pci: add missing m_can_class_free_dev() in probe/remove methodsZhang Changzhong
In m_can_pci_remove() and error handling path of m_can_pci_probe(), m_can_class_free_dev() should be called to free resource allocated by m_can_class_allocate_dev(), otherwise there will be memleak. Fixes: cab7ffc0324f ("can: m_can: add PCI glue driver for Intel Elkhart Lake") Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Link: https://lore.kernel.org/all/1668168684-6390-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-11-24can: etas_es58x: es58x_init_netdev(): free netdev when register_candev()Zhang Changzhong
In case of register_candev() fails, clear es58x_dev->netdev[channel_idx] and add free_candev(). Otherwise es58x_free_netdevs() will unregister the netdev that has never been registered. Fixes: 8537257874e9 ("can: etas_es58x: add core support for ETAS ES58X CAN USB interfaces") Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Acked-by: Arunachalam Santhanam <Arunachalam.Santhanam@in.bosch.com> Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Link: https://lore.kernel.org/all/1668413685-23354-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-11-24can: cc770: cc770_isa_probe(): add missing free_cc770dev()Zhang Changzhong
Add the missing free_cc770dev() before return from cc770_isa_probe() in the register_cc770dev() error handling case. In addition, remove blanks before goto labels. Fixes: 7e02e5433e00 ("can: cc770: legacy CC770 ISA bus driver") Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Link: https://lore.kernel.org/all/1668168557-6024-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-11-24can: sja1000_isa: sja1000_isa_probe(): add missing free_sja1000dev()Zhang Changzhong
Add the missing free_sja1000dev() before return from sja1000_isa_probe() in the register_sja1000dev() error handling case. In addition, remove blanks before goto labels. Fixes: 2a6ba39ad6a2 ("can: sja1000: legacy SJA1000 ISA bus driver") Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Link: https://lore.kernel.org/all/1668168521-5540-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-11-24can: sja1000: fix size of OCR_MODE_MASK defineHeiko Schocher
bitfield mode in ocr register has only 2 bits not 3, so correct the OCR_MODE_MASK define. Signed-off-by: Heiko Schocher <hs@denx.de> Link: https://lore.kernel.org/all/20221123071636.2407823-1-hs@denx.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-11-24can: can327: can327_feed_frame_to_netdev(): fix potential skb leak when ↵Ziyang Xuan
netdev is down In can327_feed_frame_to_netdev(), it did not free the skb when netdev is down, and all callers of can327_feed_frame_to_netdev() did not free allocated skb too. That would trigger skb leak. Fix it by adding kfree_skb() in can327_feed_frame_to_netdev() when netdev is down. Not tested, just compiled. Fixes: 43da2f07622f ("can: can327: CAN/ldisc driver for ELM327 based OBD-II adapters") Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com> Link: https://lore.kernel.org/all/20221110061437.411525-1-william.xuanziyang@huawei.com Reviewed-by: Max Staudt <max@enpas.org> Cc: stable@vger.kernel.org Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-11-24Merge tag 'v6.2-rockchip-dts32-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/fixes Disabling of the unreliable arm-global-timer on earliest Rockchip SoCs, due to its frequency being bound to the changing cpu clock. * tag 'v6.2-rockchip-dts32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: ARM: dts: rockchip: disable arm_global_timer on rk3066 and rk3188
2022-11-24MAINTAINERS: add S390 MM sectionHeiko Carstens
Alexander Gordeev and Gerald Schaefer are covering the whole s390 specific memory management code. Reflect that by adding a new S390 MM section to MAINTAINERS. Also rename the S390 section to S390 ARCHITECTURE to be a bit more precise. Acked-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Acked-by: Christian Borntraeger <borntraeger@linux.ibm.com> Acked-by: Alexander Gordeev <agordeev@linux.ibm.com> Acked-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2022-11-24s390/crashdump: fix TOD programmable field sizeHeiko Carstens
The size of the TOD programmable field was incorrectly increased from four to eight bytes with commit 1a2c5840acf9 ("s390/dump: cleanup CPU save area handling"). This leads to an elf notes section NT_S390_TODPREG which has a size of eight instead of four bytes in case of kdump, however even worse is that the contents is incorrect: it is supposed to contain only the contents of the TOD programmable field, but in fact contains a mix of the TOD programmable field (32 bit upper bits) and parts of the CPU timer register (lower 32 bits). Fix this by simply changing the size of the todpreg field within the save area structure. This will implicitly also fix the size of the corresponding elf notes sections. This also gets rid of this compile time warning: in function ‘fortify_memcpy_chk’, inlined from ‘save_area_add_regs’ at arch/s390/kernel/crash_dump.c:99:2: ./include/linux/fortify-string.h:413:25: error: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Werror=attribute-warning] 413 | __read_overflow2_field(q_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fixes: 1a2c5840acf9 ("s390/dump: cleanup CPU save area handling") Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2022-11-24net: thunderx: Fix the ACPI memory leakYu Liao
The ACPI buffer memory (string.pointer) should be freed as the buffer is not used after returning from bgx_acpi_match_id(), free it to prevent memory leak. Fixes: 46b903a01c05 ("net, thunder, bgx: Add support to get MAC address from ACPI.") Signed-off-by: Yu Liao <liaoyu15@huawei.com> Link: https://lore.kernel.org/r/20221123082237.1220521-1-liaoyu15@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-24perf: Consider OS filter failPeter Zijlstra
Some PMUs (notably the traditional hardware kind) have boundary issues with the OS filter. Specifically, it is possible for perf_event_attr::exclude_kernel=1 events to trigger in-kernel due to SKID or errata. This can upset the sigtrap logic some and trigger the WARN. However, if this invalid sample is the first we must not loose the SIGTRAP, OTOH if it is the second, it must not override the pending_addr with a (possibly) invalid one. Fixes: ca6c21327c6a ("perf: Fix missing SIGTRAPs") Reported-by: Pengfei Xu <pengfei.xu@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Marco Elver <elver@google.com> Tested-by: Pengfei Xu <pengfei.xu@intel.com> Link: https://lkml.kernel.org/r/Y3hDYiXwRnJr8RYG@xpf.sh.intel.com
2022-11-24perf: Fixup SIGTRAP and sample_flags interactionPeter Zijlstra
The perf_event_attr::sigtrap functionality relies on data->addr being set. However commit 7b0846301531 ("perf: Use sample_flags for addr") changed this to only initialize data->addr when not 0. Fixes: 7b0846301531 ("perf: Use sample_flags for addr") Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/Y3426b4OimE%2FI5po%40hirez.programming.kicks-ass.net
2022-11-24octeontx2-af: Fix reference count issue in rvu_sdp_init()Xiongfeng Wang
pci_get_device() will decrease the reference count for the *from* parameter. So we don't need to call put_device() to decrease the reference. Let's remove the put_device() in the loop and only decrease the reference count of the returned 'pdev' for the last loop because it will not be passed to pci_get_device() as input parameter. We don't need to check if 'pdev' is NULL because it is already checked inside pci_dev_put(). Also add pci_dev_put() for the error path. Fixes: fe1939bb2340 ("octeontx2-af: Add SDP interface support") Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Reviewed-by: Saeed Mahameed <saeed@kernel.org> Link: https://lore.kernel.org/r/20221123065919.31499-1-wangxiongfeng2@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-24net: altera_tse: release phylink resources in tse_shutdown()Liu Jian
Call phylink_disconnect_phy() in tse_shutdown() to release the resources occupied by phylink_of_phy_connect() in the tse_open(). Fixes: fef2998203e1 ("net: altera: tse: convert to phylink") Signed-off-by: Liu Jian <liujian56@huawei.com> Link: https://lore.kernel.org/r/20221123011617.332302-1-liujian56@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-24virtio_net: Fix probe failed when modprobe virtio_netLi Zetao
When doing the following test steps, an error was found: step 1: modprobe virtio_net succeeded # modprobe virtio_net <-- OK step 2: fault injection in register_netdevice() # modprobe -r virtio_net <-- OK # ... FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 3521 Comm: modprobe Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), Call Trace: <TASK> ... should_failslab+0xa/0x20 ... dev_set_name+0xc0/0x100 netdev_register_kobject+0xc2/0x340 register_netdevice+0xbb9/0x1320 virtnet_probe+0x1d72/0x2658 [virtio_net] ... </TASK> virtio_net: probe of virtio0 failed with error -22 step 3: modprobe virtio_net failed # modprobe virtio_net <-- failed virtio_net: probe of virtio0 failed with error -2 The root cause of the problem is that the queues are not disable on the error handling path when register_netdevice() fails in virtnet_probe(), resulting in an error "-ENOENT" returned in the next modprobe call in setup_vq(). virtio_pci_modern_device uses virtqueues to send or receive message, and "queue_enable" records whether the queues are available. In vp_modern_find_vqs(), all queues will be selected and activated, but once queues are enabled there is no way to go back except reset. Fix it by reset virtio device on error handling path. This makes error handling follow the same order as normal device cleanup in virtnet_remove() which does: unregister, destroy failover, then reset. And that flow is better tested than error handling so we can be reasonably sure it works well. Fixes: 024655555021 ("virtio_net: fix use after free on allocation failure") Signed-off-by: Li Zetao <lizetao1@huawei.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Link: https://lore.kernel.org/r/20221122150046.3910638-1-lizetao1@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-24net/mlx5e: MACsec, block offload requests with encrypt offEmeel Hakim
Currently offloading MACsec with authentication only (encrypt property set to off) is not supported, block such requests when adding/updating a macsec device. Fixes: 8ff0ac5be144 ("net/mlx5: Add MACsec offload Tx command support") Signed-off-by: Emeel Hakim <ehakim@nvidia.com> Reviewed-by: Raed Salem <raeds@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-11-24net/mlx5e: MACsec, fix Tx SA active field updateRaed Salem
Currently during update Tx security association (SA) flow, the Tx SA active state is updated only if the Tx SA in question is the same SA that the MACsec interface is using for Tx,in consequence when the MACsec interface chose to work with this Tx SA later, where this SA for example should have been updated to active state and it was not, the relevant Tx SA HW context won't be installed, hence the MACSec flow won't be offloaded. Fix by update Tx SA active state as part of update flow regardless whether the SA in question is the same Tx SA used by the MACsec interface. Fixes: 8ff0ac5be144 ("net/mlx5: Add MACsec offload Tx command support") Signed-off-by: Raed Salem <raeds@nvidia.com> Reviewed-by: Emeel Hakim <ehakim@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-11-24net/mlx5e: MACsec, remove replay window size limitation in offload pathEmeel Hakim
Currently offload path limits replay window size to 32/64/128/256 bits, such a limitation should not exist since software allows it. Remove such limitation. Fixes: eb43846b43c3 ("net/mlx5e: Support MACsec offload replay window") Signed-off-by: Emeel Hakim <ehakim@nvidia.com> Reviewed-by: Raed Salem <raeds@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-11-24net/mlx5e: MACsec, fix add Rx security association (SA) rule memory leakEmeel Hakim
Currently MACsec's add Rx SA flow steering (fs) rule routine uses a spec object which is dynamically allocated and do not free it upon leaving. The above led to a memory leak. Fix by freeing dynamically allocated objects. Fixes: 3b20949cb21b ("net/mlx5e: Add MACsec RX steering rules") Signed-off-by: Emeel Hakim <ehakim@nvidia.com> Reviewed-by: Raed Salem <raeds@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-11-24net/mlx5e: MACsec, fix mlx5e_macsec_update_rxsa bail condition and functionalityRaed Salem
Fix update Rx SA wrong bail condition, naturally update functionality needs to check that something changed otherwise bailout currently the active state check does just the opposite, furthermore unlike deactivate path which remove the macsec rules to deactivate the offload, the activation path does not include the counter part installation of the macsec rules. Fix by using correct bailout condition and when Rx SA changes state to active then add the relevant macsec rules. While at it, refine function name to reflect more precisely its role. Fixes: aae3454e4d4c ("net/mlx5e: Add MACsec offload Rx command support") Signed-off-by: Raed Salem <raeds@nvidia.com> Reviewed-by: Emeel Hakim <ehakim@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-11-24net/mlx5e: MACsec, fix update Rx secure channel active fieldRaed Salem
The main functionality for this operation is to update the active state of the Rx security channel (SC) if the new active setting is different from the current active state of this Rx SC, however the relevant active state check is done post updating the current active state to match the new active state, effectively blocks any offload state update for the Rx SC in question. Fix by delay the assignment to be post the relevant check. Fixes: aae3454e4d4c ("net/mlx5e: Add MACsec offload Rx command support") Signed-off-by: Raed Salem <raeds@nvidia.com> Reviewed-by: Emeel Hakim <ehakim@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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