- 04 May, 2022 13 commits
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Ariel Levkovich authored
When resolving the decap route device for a tunnel decap rule, the result may be an OVS internal port device. Prior to adding the support for internal port offload, such case would result in using the uplink as the default decap route device which allowed devices that can't support internal port offload to offload this decap rule. This behavior got broken by adding the internal port offload which will fail in case the device can't support internal port offload. To restore the old behavior, use the uplink device as the decap route as before when internal port offload is not supported. Fixes: b16eb3c8 ("net/mlx5: Support internal port as decap route device") Signed-off-by:
Ariel Levkovich <lariel@nvidia.com> Reviewed-by:
Maor Dickman <maord@nvidia.com> Signed-off-by:
Saeed Mahameed <saeedm@nvidia.com>
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Ariel Levkovich authored
ct_clear action is translated to clearing reg_c metadata which holds ct state and zone information using mod header actions. These actions are allocated during the actions parsing, as part of the flow attributes main mod header action list. If ct action exists in the rule, the flow's main mod header is used only in the post action table rule, after the ct tables which set the ct info in the reg_c as part of the ct actions. Therefore, if the original rule has a ct_clear action followed by a ct action, the ct action reg_c setting will be done first and will be followed by the ct_clear resetting reg_c and overwriting the ct info. Fix this by moving the ct_clear mod header actions allocation from the ct action parsing stage to the ct action post parsing stage where it is already known if ct_clear is followed by a ct action. In such case, we skip the mod header actions allocation for the ct clear since the ct action will write to reg_c anyway after clearing it. Fixes: 806401c2 ("net/mlx5e: CT, Fix multiple allocations and memleak of mod acts") Signed-off-by:
Paul Blakey <paulb@nvidia.com> Reviewed-by:
Roi Dayan <roid@nvidia.com> Reviewed-by:
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Vlad Buslov authored
Referenced change added check to skip updating fib when new fib instance has same or lower priority. However, new fib instance can be an update on same dst address as existing one even though the structure is another instance that has different address. Ignoring events on such instances causes multipath LAG state to not be correctly updated. Track 'dst' and 'dst_len' fields of fib event fib_entry_notifier_info structure and don't skip events that have the same value of that fields. Fixes: ad11c4f1 ("net/mlx5e: Lag, Only handle events from highest priority multipath entry") Signed-off-by:
Vlad Buslov <vladbu@nvidia.com> Reviewed-by:
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Vlad Buslov authored
Referenced change incorrectly sets single path fib_info even when LAG is not active. Fix it by moving call to mlx5_lag_fib_set() into conditional that verifies LAG state. Fixes: ad11c4f1 ("net/mlx5e: Lag, Only handle events from highest priority multipath entry") Signed-off-by:
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Vlad Buslov authored
Recent commit that modified fib route event handler to handle events according to their priority introduced use-after-free[0] in mp->mfi pointer usage. The pointer now is not just cached in order to be compared to following fib_info instances, but is also dereferenced to obtain fib_priority. However, since mlx5 lag code doesn't hold the reference to fin_info during whole mp->mfi lifetime, it could be used after fib_info instance has already been freed be kernel infrastructure code. Don't ever dereference mp->mfi pointer. Refactor it to be 'const void*' type and cache fib_info priority in dedicated integer. Group fib_info-related data into dedicated 'fib' structure that will be further extended by following patches in the series. [0]: [ 203.588029] ================================================================== [ 203.590161] BUG: KASAN: use-after-free in mlx5_lag_fib_update+0xabd/0xd60 [mlx5_core] [ 203.592386] Read of size 4 at addr ffff888144df2050 by task kworker/u20:4/138 [ 203.594766] CPU: 3 PID: 138 Comm: kworker/u20:4 Tainted: G B 5.17.0-rc7+ #6 [ 203.596751] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [ 203.598813] Workqueue: mlx5_lag_mp mlx5_lag_fib_update [mlx5_core] [ 203.600053] Call Trace: [ 203.600608] <TASK> [ 203.601110] dump_stack_lvl+0x48/0x5e [ 203.601860] print_address_description.constprop.0+0x1f/0x160 [ 203.602950] ? mlx5_lag_fib_update+0xabd/0xd60 [mlx5_core] [ 203.604073] ? mlx5_lag_fib_update+0xabd/0xd60 [mlx5_core] [ 203.605177] kasan_report.cold+0x83/0xdf [ 203.605969] ? mlx5_lag_fib_update+0xabd/0xd60 [mlx5_core] [ 203.607102] mlx5_lag_fib_update+0xabd/0xd60 [mlx5_core] [ 203.608199] ? mlx5_lag_init_fib_work+0x1c0/0x1c0 [mlx5_core] [ 203.609382] ? read_word_at_a_time+0xe/0x20 [ 203.610463] ? strscpy+0xa0/0x2a0 [ 203.611463] process_one_work+0x722/0x1270 [ 203.612344] worker_thread+0x540/0x11e0 [ 203.613136] ? rescuer_thread+0xd50/0xd50 [ 203.613949] kthread+0x26e/0x300 [ 203.614627] ? kthread_complete_and_exit+0x20/0x20 [ 203.615542] ret_from_fork+0x1f/0x30 [ 203.616273] </TASK> [ 203.617174] Allocated by task 3746: [ 203.617874] kasan_save_stack+0x1e/0x40 [ 203.618644] __kasan_kmalloc+0x81/0xa0 [ 203.619394] fib_create_info+0xb41/0x3c50 [ 203.620213] fib_table_insert+0x190/0x1ff0 [ 203.621020] fib_magic.isra.0+0x246/0x2e0 [ 203.621803] fib_add_ifaddr+0x19f/0x670 [ 203.622563] fib_inetaddr_event+0x13f/0x270 [ 203.623377] blocking_notifier_call_chain+0xd4/0x130 [ 203.624355] __inet_insert_ifa+0x641/0xb20 [ 203.625185] inet_rtm_newaddr+0xc3d/0x16a0 [ 203.626009] rtnetlink_rcv_msg+0x309/0x880 [ 203.626826] netlink_rcv_skb+0x11d/0x340 [ 203.627626] netlink_unicast+0x4cc/0x790 [ 203.628430] netlink_sendmsg+0x762/0xc00 [ 203.629230] sock_sendmsg+0xb2/0xe0 [ 203.629955] ____sys_sendmsg+0x58a/0x770 [ 203.630756] ___sys_sendmsg+0xd8/0x160 [ 203.631523] __sys_sendmsg+0xb7/0x140 [ 203.632294] do_syscall_64+0x35/0x80 [ 203.633045] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 203.634427] Freed by task 0: [ 203.635063] kasan_save_stack+0x1e/0x40 [ 203.635844] kasan_set_track+0x21/0x30 [ 203.636618] kasan_set_free_info+0x20/0x30 [ 203.637450] __kasan_slab_free+0xfc/0x140 [ 203.638271] kfree+0x94/0x3b0 [ 203.638903] rcu_core+0x5e4/0x1990 [ 203.639640] __do_softirq+0x1ba/0x5d3 [ 203.640828] Last potentially related work creation: [ 203.641785] kasan_save_stack+0x1e/0x40 [ 203.642571] __kasan_record_aux_stack+0x9f/0xb0 [ 203.643478] call_rcu+0x88/0x9c0 [ 203.644178] fib_release_info+0x539/0x750 [ 203.644997] fib_table_delete+0x659/0xb80 [ 203.645809] fib_magic.isra.0+0x1a3/0x2e0 [ 203.646617] fib_del_ifaddr+0x93f/0x1300 [ 203.647415] fib_inetaddr_event+0x9f/0x270 [ 203.648251] blocking_notifier_call_chain+0xd4/0x130 [ 203.649225] __inet_del_ifa+0x474/0xc10 [ 203.650016] devinet_ioctl+0x781/0x17f0 [ 203.650788] inet_ioctl+0x1ad/0x290 [ 203.651533] sock_do_ioctl+0xce/0x1c0 [ 203.652315] sock_ioctl+0x27b/0x4f0 [ 203.653058] __x64_sys_ioctl+0x124/0x190 [ 203.653850] do_syscall_64+0x35/0x80 [ 203.654608] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 203.666952] The buggy address belongs to the object at ffff888144df2000 which belongs to the cache kmalloc-256 of size 256 [ 203.669250] The buggy address is located 80 bytes inside of 256-byte region [ffff888144df2000, ffff888144df2100) [ 203.671332] The buggy address belongs to the page: [ 203.672273] page:00000000bf6c9314 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x144df0 [ 203.674009] head:00000000bf6c9314 order:2 compound_mapcount:0 compound_pincount:0 [ 203.675422] flags: 0x2ffff800010200(slab|head|node=0|zone=2|lastcpupid=0x1ffff) [ 203.676819] raw: 002ffff800010200 0000000000000000 dead000000000122 ffff888100042b40 [ 203.678384] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 [ 203.679928] page dumped because: kasan: bad access detected [ 203.681455] Memory state around the buggy address: [ 203.682421] ffff888144df1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 203.683863] ffff888144df1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 203.685310] >ffff888144df2000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 203.686701] ^ [ 203.687820] ffff888144df2080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 203.689226] ffff888144df2100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 203.690620] ================================================================== Fixes: ad11c4f1 ("net/mlx5e: Lag, Only handle events from highest priority multipath entry") Signed-off-by:Leon Romanovsky <leonro@nvidia.com> Signed-off-by:
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Mark Zhang authored
The arguments of update_buffer_lossy() is in a wrong order. Fix it. Fixes: 88b3d5c9 ("net/mlx5e: Fix port buffers cell size value") Signed-off-by:
Mark Zhang <markzhang@nvidia.com> Reviewed-by:
Maor Gottlieb <maorg@nvidia.com> Signed-off-by:
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Vlad Buslov authored
Currently, match VLAN rule also matches packets that have multiple VLAN headers. This behavior is similar to buggy flower classifier behavior that has recently been fixed. Fix the issue by matching on outer_second_cvlan_tag with value 0 which will cause the HW to verify the packet doesn't contain second vlan header. Fixes: 699e96dd ("net/mlx5e: Support offloading tc double vlan headers match") Signed-off-by:
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Aya Levin authored
Resource dump menu may span over more than a single page, support it. Otherwise, menu read may result in a memory access violation: reading outside of the allocated page. Note that page format of the first menu page contains menu headers while the proceeding menu pages contain only records. The KASAN logs are as follows: BUG: KASAN: slab-out-of-bounds in strcmp+0x9b/0xb0 Read of size 1 at addr ffff88812b2e1fd0 by task systemd-udevd/496 CPU: 5 PID: 496 Comm: systemd-udevd Tainted: G B 5.16.0_for_upstream_debug_2022_01_10_23_12 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x57/0x7d print_address_description.constprop.0+0x1f/0x140 ? strcmp+0x9b/0xb0 ? strcmp+0x9b/0xb0 kasan_report.cold+0x83/0xdf ? strcmp+0x9b/0xb0 strcmp+0x9b/0xb0 mlx5_rsc_dump_init+0x4ab/0x780 [mlx5_core] ? mlx5_rsc_dump_destroy+0x80/0x80 [mlx5_core] ? lockdep_hardirqs_on_prepare+0x286/0x400 ? raw_spin_unlock_irqrestore+0x47/0x50 ? aomic_notifier_chain_register+0x32/0x40 mlx5_load+0x104/0x2e0 [mlx5_core] mlx5_init_one+0x41b/0x610 [mlx5_core] .... The buggy address belongs to the object at ffff88812b2e0000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 4048 bytes to the right of 4096-byte region [ffff88812b2e0000, ffff88812b2e1000) The buggy address belongs to the page: page:000000009d69807a refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88812b2e6000 pfn:0x12b2e0 head:000000009d69807a order:3 compound_mapcount:0 compound_pincount:0 flags: 0x8000000000010200(slab|head|zone=2) raw: 8000000000010200 0000000000000000 dead000000000001 ffff888100043040 raw: ffff88812b2e6000 0000000080040000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88812b2e1e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88812b2e1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88812b2e1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88812b2e2000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88812b2e2080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Fixes: 12206b17 ("net/mlx5: Add support for resource dump") Signed-off-by:Aya Levin <ayal@nvidia.com> Reviewed-by:
Moshe Shemesh <moshe@nvidia.com> Signed-off-by:
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Ariel Levkovich authored
When OVS internal port is the vtep device, the first decap rule is matching on the internal port's vport metadata value and then changes the metadata to be the uplink's value. Therefore, following rules on the tunnel, in chain > 0, should avoid matching on internal port metadata and use the uplink vport metadata instead. Select the uplink's metadata value for the source vport match in case the rule is in chain greater than zero, even if the tunnel route device is internal port. Fixes: 166f431e ("net/mlx5e: Add indirect tc offload of ovs internal port") Signed-off-by:
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Jakub Kicinski authored
Michael Chan says: ==================== bnxt_en: Bug fixes This patch series includes 3 fixes: - Fix an occasional VF open failure. - Fix a PTP spinlock usage before initialization - Fix unnecesary RX packet drops under high TX traffic load. ==================== Link: https://lore.kernel.org/r/1651540392-2260-1-git-send-email-michael.chan@broadcom.comSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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Michael Chan authored
In bnxt_poll_p5(), we first check cpr->has_more_work. If it is true, we are in NAPI polling mode and we will call __bnxt_poll_cqs() to continue polling. It is possible to exhanust the budget again when __bnxt_poll_cqs() returns. We then enter the main while loop to check for new entries in the NQ. If we had previously exhausted the NAPI budget, we may call __bnxt_poll_work() to process an RX entry with zero budget. This will cause packets to be dropped unnecessarily, thinking that we are in the netpoll path. Fix it by breaking out of the while loop if we need to process an RX NQ entry with no budget left. We will then exit NAPI and stay in polling mode. Fixes: 389a877a ("bnxt_en: Process the NQ under NAPI continuous polling.") Reviewed-by:
Andy Gospodarek <andrew.gospodarek@broadcom.com> Signed-off-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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Michael Chan authored
bnxt_ptp_init() calls bnxt_ptp_init_rtc() which will acquire the ptp_lock spinlock. The spinlock is not initialized until later. Move the bnxt_ptp_init_rtc() call after the spinlock is initialized. Fixes: 24ac1ecd ("bnxt_en: Add driver support to use Real Time Counter for PTP") Reviewed-by:
Pavan Chebbi <pavan.chebbi@broadcom.com> Reviewed-by:
Saravanan Vajravel <saravanan.vajravel@broadcom.com> Reviewed-by:
Somnath Kotur <somnath.kotur@broadcom.com> Reviewed-by:
Damodharam Ammepalli <damodharam.ammepalli@broadcom.com> Signed-off-by:
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Somnath Kotur authored
bnxt_open() can fail in this code path, especially on a VF when it fails to reserve default rings: bnxt_open() __bnxt_open_nic() bnxt_clear_int_mode() bnxt_init_dflt_ring_mode() RX rings would be set to 0 when we hit this error path. It is possible for a subsequent bnxt_open() call to potentially succeed with a code path like this: bnxt_open() bnxt_hwrm_if_change() bnxt_fw_init_one() bnxt_fw_init_one_p3() bnxt_set_dflt_rfs() bnxt_rfs_capable() bnxt_hwrm_reserve_rings() On older chips, RFS is capable if we can reserve the number of vnics that is equal to RX rings + 1. But since RX rings is still set to 0 in this code path, we may mistakenly think that RFS is supported for 0 RX rings. Later, when the default RX rings are reserved and we try to enable RFS, it would fail and cause bnxt_open() to fail unnecessarily. We fix this in 2 places. bnxt_rfs_capable() will always return false if RX rings is not yet set. bnxt_init_dflt_ring_mode() will call bnxt_set_dflt_rfs() which will always clear the RFS flags if RFS is not supported. Fixes: 20d7d1c5 ("bnxt_en: reliably allocate IRQ table on reset to avoid crash") Signed-off-by:
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- 03 May, 2022 9 commits
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Sergey Shtylyov authored
The AlphaProject AP-SH4A-3A/AP-SH4AD-0A SH boards use IRQ0 for their SMSC LAN911x Ethernet chip, so the networking on them must have been broken by commit 965b2aa7 ("net/smsc911x: fix irq resource allocation failure") which filtered out 0 as well as the negative error codes -- it was kinda correct at the time, as platform_get_irq() could return 0 on of_irq_get() failure and on the actual 0 in an IRQ resource. This issue was fixed by me (back in 2016!), so we should be able to fix this driver to allow IRQ0 usage again... When merging this to the stable kernels, make sure you also merge commit e330b9a6 ("platform: don't return 0 from platform_get_irq[_byname]() on error") -- that's my fix to platform_get_irq() for the DT platforms... Fixes: 965b2aa7 ("net/smsc911x: fix irq resource allocation failure") Signed-off-by:
Sergey Shtylyov <s.shtylyov@omp.ru> Link: https://lore.kernel.org/r/656036e4-6387-38df-b8a7-6ba683b16e63@omp.ruSigned-off-by:
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Matthew Hagan authored
As noted elsewhere, various GPON SFP modules exhibit non-standard TX-fault behaviour. In the tested case, the Huawei MA5671A, when used in combination with a Marvell mv88e6085 switch, was found to persistently assert TX-fault, resulting in the module being disabled. This patch adds a quirk to ignore the SFP_F_TX_FAULT state, allowing the module to function. Change from v1: removal of erroneous return statment (Andrew Lunn) Signed-off-by:
Matthew Hagan <mnhagan88@gmail.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20220502223315.1973376-1-mnhagan88@gmail.comSigned-off-by:
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Tetsuo Handa authored
syzbot is reporting use-after-free read in tcp_retransmit_timer() [1], for TCP socket used by RDS is accessing sock_net() without acquiring a refcount on net namespace. Since TCP's retransmission can happen after a process which created net namespace terminated, we need to explicitly acquire a refcount. Link: https://syzkaller.appspot.com/bug?extid=694120e1002c117747ed [1] Reported-by:
syzbot <syzbot+694120e1002c117747ed@syzkaller.appspotmail.com> Fixes: 26abe143 ("net: Modify sk_alloc to not reference count the netns of kernel sockets.") Fixes: 8a681736 ("net: sk_clone_lock() should only do get_net() if the parent is not a kernel socket") Signed-off-by:
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Tested-by:
Paolo Abeni <pabeni@redhat.com>
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Marc Kleine-Budde authored
The program uses CLOCK_TAI as default clock since it was added to the Linux repo. In commit: | 04080634 ("selftests/net: so_txtime multi-host support") a help text stating the wrong default clock was added. This patch fixes the help text. Fixes: 04080634 ("selftests/net: so_txtime multi-host support") Cc: Carlos Llamas <cmllamas@google.com> Cc: Willem de Bruijn <willemb@google.com> Signed-off-by:
Marc Kleine-Budde <mkl@pengutronix.de> Acked-by:
Willem de Bruijn <willemb@google.com> Reviewed-by:
Carlos Llamas <cmllamas@google.com> Link: https://lore.kernel.org/r/20220502094638.1921702-3-mkl@pengutronix.deSigned-off-by:
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Marc Kleine-Budde authored
This patch fixes the parsing of the cmd line supplied start time on 32 bit systems. A "long" on 32 bit systems is only 32 bit wide and cannot hold a timestamp in nano second resolution. Fixes: 04080634 ("selftests/net: so_txtime multi-host support") Cc: Carlos Llamas <cmllamas@google.com> Cc: Willem de Bruijn <willemb@google.com> Signed-off-by:
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Ido Schimmel authored
In emulated environments, the bridge ports enslaved to br1 get a carrier before changing br1's PVID. This means that by the time the PVID is changed, br1 is already operational and configured with an IPv6 link-local address. When the test is run with netdevs registered by mlxsw, changing the PVID is vetoed, as changing the VID associated with an existing L3 interface is forbidden. This restriction is similar to the 8021q driver's restriction of changing the VID of an existing interface. Fix this by taking br1 down and bringing it back up when it is fully configured. With this fix, the test reliably passes on top of both the SW and HW data paths (emulated or not). Fixes: 239e754a ("selftests: forwarding: Test mirror-to-gretap w/ UL 802.1q") Signed-off-by:
Ido Schimmel <idosch@nvidia.com> Reviewed-by:
Petr Machata <petrm@nvidia.com> Link: https://lore.kernel.org/r/20220502084507.364774-1-idosch@nvidia.comSigned-off-by:
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Paolo Abeni authored
Radhey Shyam Pandey says: ==================== emaclite: improve error handling and minor cleanup This patchset does error handling for of_address_to_resource() and also removes "Don't advertise 1000BASE-T" and auto negotiation. Changes for v3: - Resolve git apply conflicts for 2/2 patch. Changes for v2: - Added Andrew's reviewed by tag in 1/2 patch. - Move ret to down to align with reverse xmas tree style in 2/2 patch. - Also add fixes tag in 2/2 patch. - Specify tree name in subject prefix. ==================== Link: https://lore.kernel.org/r/1651476470-23904-1-git-send-email-radhey.shyam.pandey@xilinx.comSigned-off-by:
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Shravya Kumbham authored
check the return value of of_address_to_resource() and also add missing of_node_put() for np and npp nodes. Fixes: e0a3bc65 ("net: emaclite: Support multiple phys connected to one MDIO bus") Addresses-Coverity: Event check_return value. Signed-off-by:
Shravya Kumbham <shravya.kumbham@xilinx.com> Signed-off-by:
Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Signed-off-by:
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Shravya Kumbham authored
In xemaclite_open() function we are setting the max speed of emaclite to 100Mb using phy_set_max_speed() function so, there is no need to write the advertising registers to stop giga-bit speed and the phy_start() function starts the auto-negotiation so, there is no need to handle it separately using advertising registers. Remove the phy_read and phy_write of advertising registers in xemaclite_open() function. Signed-off-by:
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- 01 May, 2022 6 commits
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Russell King (Oracle) authored
Convert B53 to use phylink_pcs for the serdes rather than hooking it into the MAC-layer callbacks. Fixes: 81c1681c ("net: dsa: b53: mark as non-legacy") Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Tested-by:
Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Thomas Gleixner authored
with the usage of this function in nic_mbx_intr_handler(). Cache the Linux interrupt numbers in struct nicpf and use that cache in the interrupt handler to select the mailbox. Fixes: 495c66ac ("genirq/msi: Convert to new functions") Reported-by:
Ondrej Mosnacek <omosnace@redhat.com> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Sunil Goutham <sgoutham@marvell.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: netdev@vger.kernel.org Cc: stable@vger.kernel.org Link: https://bugzilla.redhat.com/show_bug.cgi?id=2041772Signed-off-by:
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David S. Miller authored
Duoming Zhou says: ==================== Replace improper checks and fix bugs in nfc subsystem The first patch is used to replace improper checks in netlink related functions of nfc core, the second patch is used to fix bugs in nfcmrvl driver. ==================== Signed-off-by: -
Duoming Zhou authored
There are destructive operations such as nfcmrvl_fw_dnld_abort and gpio_free in nfcmrvl_nci_unregister_dev. The resources such as firmware, gpio and so on could be destructed while the upper layer functions such as nfcmrvl_fw_dnld_start and nfcmrvl_nci_recv_frame is executing, which leads to double-free, use-after-free and null-ptr-deref bugs. There are three situations that could lead to double-free bugs. The first situation is shown below: (Thread 1) | (Thread 2) nfcmrvl_fw_dnld_start | ... | nfcmrvl_nci_unregister_dev release_firmware() | nfcmrvl_fw_dnld_abort kfree(fw) //(1) | fw_dnld_over | release_firmware ... | kfree(fw) //(2) | ... The second situation is shown below: (Thread 1) | (Thread 2) nfcmrvl_fw_dnld_start | ... | mod_timer | (wait a time) | fw_dnld_timeout | nfcmrvl_nci_unregister_dev fw_dnld_over | nfcmrvl_fw_dnld_abort release_firmware | fw_dnld_over kfree(fw) //(1) | release_firmware ... | kfree(fw) //(2) The third situation is shown below: (Thread 1) | (Thread 2) nfcmrvl_nci_recv_frame | if(..->fw_download_in_progress)| nfcmrvl_fw_dnld_recv_frame | queue_work | | fw_dnld_rx_work | nfcmrvl_nci_unregister_dev fw_dnld_over | nfcmrvl_fw_dnld_abort release_firmware | fw_dnld_over kfree(fw) //(1) | release_firmware | kfree(fw) //(2) The firmware struct is deallocated in position (1) and deallocated in position (2) again. The crash trace triggered by POC is like below: BUG: KASAN: double-free or invalid-free in fw_dnld_over Call Trace: kfree fw_dnld_over nfcmrvl_nci_unregister_dev nci_uart_tty_close tty_ldisc_kill tty_ldisc_hangup __tty_hangup.part.0 tty_release ... What's more, there are also use-after-free and null-ptr-deref bugs in nfcmrvl_fw_dnld_start. If we deallocate firmware struct, gpio or set null to the members of priv->fw_dnld in nfcmrvl_nci_unregister_dev, then, we dereference firmware, gpio or the members of priv->fw_dnld in nfcmrvl_fw_dnld_start, the UAF or NPD bugs will happen. This patch reorders destructive operations after nci_unregister_device in order to synchronize between cleanup routine and firmware download routine. The nci_unregister_device is well synchronized. If the device is detaching, the firmware download routine will goto error. If firmware download routine is executing, nci_unregister_device will wait until firmware download routine is finished. Fixes: 3194c687 ("NFC: nfcmrvl: add firmware download support") Signed-off-by:Duoming Zhou <duoming@zju.edu.cn> Signed-off-by:
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Duoming Zhou authored
The device_is_registered() in nfc core is used to check whether nfc device is registered in netlink related functions such as nfc_fw_download(), nfc_dev_up() and so on. Although device_is_registered() is protected by device_lock, there is still a race condition between device_del() and device_is_registered(). The root cause is that kobject_del() in device_del() is not protected by device_lock. (cleanup task) | (netlink task) | nfc_unregister_device | nfc_fw_download device_del | device_lock ... | if (!device_is_registered)//(1) kobject_del//(2) | ... ... | device_unlock The device_is_registered() returns the value of state_in_sysfs and the state_in_sysfs is set to zero in kobject_del(). If we pass check in position (1), then set zero in position (2). As a result, the check in position (1) is useless. This patch uses bool variable instead of device_is_registered() to judge whether the nfc device is registered, which is well synchronized. Fixes: 3e256b8f ("NFC: add nfc subsystem core") Signed-off-by: -
Tan Tee Min authored
Based on DesignWare Ethernet QoS datasheet, we are seeing the limitation of Split Header (SPH) feature is not supported for Ipv4 fragmented packet. This SPH limitation will cause ping failure when the packets size exceed the MTU size. For example, the issue happens once the basic ping packet size is larger than the configured MTU size and the data is lost inside the fragmented packet, replaced by zeros/corrupted values, and leads to ping fail. So, disable the Split Header for Intel platforms. v2: Add fixes tag in commit message. Fixes: 67afd6d1("net: stmmac: Add Split Header support and enable it in XGMAC cores") Cc: <stable@vger.kernel.org> # 5.10.x Suggested-by:
Ong, Boon Leong <boon.leong.ong@intel.com> Signed-off-by:
Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com> Signed-off-by:
Wong Vee Khee <vee.khee.wong@linux.intel.com> Signed-off-by:
Tan Tee Min <tee.min.tan@linux.intel.com> Signed-off-by:
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- 30 Apr, 2022 12 commits
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Eric Dumazet authored
Whenever RCU protected list replaces an object, the pointer to the new object needs to be updated _before_ the call to kfree_rcu() or call_rcu() Also ip6_mc_msfilter() needs to update the pointer before releasing the mc_lock mutex. Note that linux-5.13 was supporting kfree_rcu(NULL, rcu), so this fix does not need the conditional test I was forced to use in the equivalent patch for IPv4. Fixes: 882ba1f7 ("mld: convert ipv6_mc_socklist->sflist to RCU") Signed-off-by:
Eric Dumazet <edumazet@google.com> Cc: Taehee Yoo <ap420073@gmail.com> Signed-off-by:
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Eric Dumazet authored
syzbot reported an UAF in ip_mc_sf_allow() [1] Whenever RCU protected list replaces an object, the pointer to the new object needs to be updated _before_ the call to kfree_rcu() or call_rcu() Because kfree_rcu(ptr, rcu) got support for NULL ptr only recently in commit 12edff04 ("rcu: Make kfree_rcu() ignore NULL pointers"), I chose to use the conditional to make sure stable backports won't miss this detail. if (psl) kfree_rcu(psl, rcu); net/ipv6/mcast.c has similar issues, addressed in a separate patch. [1] BUG: KASAN: use-after-free in ip_mc_sf_allow+0x6bb/0x6d0 net/ipv4/igmp.c:2655 Read of size 4 at addr ffff88807d37b904 by task syz-executor.5/908 CPU: 0 PID: 908 Comm: syz-executor.5 Not tainted 5.18.0-rc4-syzkaller-00064-g8f4dd166 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0xeb/0x467 mm/kasan/report.c:313 print_report mm/kasan/report.c:429 [inline] kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491 ip_mc_sf_allow+0x6bb/0x6d0 net/ipv4/igmp.c:2655 raw_v4_input net/ipv4/raw.c:190 [inline] raw_local_deliver+0x4d1/0xbe0 net/ipv4/raw.c:218 ip_protocol_deliver_rcu+0xcf/0xb30 net/ipv4/ip_input.c:193 ip_local_deliver_finish+0x2ee/0x4c0 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip_local_deliver+0x1b3/0x200 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:461 [inline] ip_rcv_finish+0x1cb/0x2f0 net/ipv4/ip_input.c:437 NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:556 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5405 __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5519 netif_receive_skb_internal net/core/dev.c:5605 [inline] netif_receive_skb+0x13e/0x8e0 net/core/dev.c:5664 tun_rx_batched.isra.0+0x460/0x720 drivers/net/tun.c:1534 tun_get_user+0x28b7/0x3e30 drivers/net/tun.c:1985 tun_chr_write_iter+0xdb/0x200 drivers/net/tun.c:2015 call_write_iter include/linux/fs.h:2050 [inline] new_sync_write+0x38a/0x560 fs/read_write.c:504 vfs_write+0x7c0/0xac0 fs/read_write.c:591 ksys_write+0x127/0x250 fs/read_write.c:644 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f3f12c3bbff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 RSP: 002b:00007f3f13ea9130 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f3f12d9bf60 RCX: 00007f3f12c3bbff RDX: 0000000000000036 RSI: 0000000020002ac0 RDI: 00000000000000c8 RBP: 00007f3f12ce308d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000036 R11: 0000000000000293 R12: 0000000000000000 R13: 00007fffb68dd79f R14: 00007f3f13ea9300 R15: 0000000000022000 </TASK> Allocated by task 908: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:436 [inline] ____kasan_kmalloc mm/kasan/common.c:515 [inline] ____kasan_kmalloc mm/kasan/common.c:474 [inline] __kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:524 kasan_kmalloc include/linux/kasan.h:234 [inline] __do_kmalloc mm/slab.c:3710 [inline] __kmalloc+0x209/0x4d0 mm/slab.c:3719 kmalloc include/linux/slab.h:586 [inline] sock_kmalloc net/core/sock.c:2501 [inline] sock_kmalloc+0xb5/0x100 net/core/sock.c:2492 ip_mc_source+0xba2/0x1100 net/ipv4/igmp.c:2392 do_ip_setsockopt net/ipv4/ip_sockglue.c:1296 [inline] ip_setsockopt+0x2312/0x3ab0 net/ipv4/ip_sockglue.c:1432 raw_setsockopt+0x274/0x2c0 net/ipv4/raw.c:861 __sys_setsockopt+0x2db/0x6a0 net/socket.c:2180 __do_sys_setsockopt net/socket.c:2191 [inline] __se_sys_setsockopt net/socket.c:2188 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2188 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Freed by task 753: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free+0x13d/0x180 mm/kasan/common.c:328 kasan_slab_free include/linux/kasan.h:200 [inline] __cache_free mm/slab.c:3439 [inline] kmem_cache_free_bulk+0x69/0x460 mm/slab.c:3774 kfree_bulk include/linux/slab.h:437 [inline] kfree_rcu_work+0x51c/0xa10 kernel/rcu/tree.c:3318 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Last potentially related work creation: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 __kasan_record_aux_stack+0x7e/0x90 mm/kasan/generic.c:348 kvfree_call_rcu+0x74/0x990 kernel/rcu/tree.c:3595 ip_mc_msfilter+0x712/0xb60 net/ipv4/igmp.c:2510 do_ip_setsockopt net/ipv4/ip_sockglue.c:1257 [inline] ip_setsockopt+0x32e1/0x3ab0 net/ipv4/ip_sockglue.c:1432 raw_setsockopt+0x274/0x2c0 net/ipv4/raw.c:861 __sys_setsockopt+0x2db/0x6a0 net/socket.c:2180 __do_sys_setsockopt net/socket.c:2191 [inline] __se_sys_setsockopt net/socket.c:2188 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2188 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Second to last potentially related work creation: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 __kasan_record_aux_stack+0x7e/0x90 mm/kasan/generic.c:348 call_rcu+0x99/0x790 kernel/rcu/tree.c:3074 mpls_dev_notify+0x552/0x8a0 net/mpls/af_mpls.c:1656 notifier_call_chain+0xb5/0x200 kernel/notifier.c:84 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1938 call_netdevice_notifiers_extack net/core/dev.c:1976 [inline] call_netdevice_notifiers net/core/dev.c:1990 [inline] unregister_netdevice_many+0x92e/0x1890 net/core/dev.c:10751 default_device_exit_batch+0x449/0x590 net/core/dev.c:11245 ops_exit_list+0x125/0x170 net/core/net_namespace.c:167 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:594 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 The buggy address belongs to the object at ffff88807d37b900 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 4 bytes inside of 64-byte region [ffff88807d37b900, ffff88807d37b940) The buggy address belongs to the physical page: page:ffffea0001f4dec0 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88807d37b180 pfn:0x7d37b flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffff888010c41340 ffffea0001c795c8 ffff888010c40200 raw: ffff88807d37b180 ffff88807d37b000 000000010000001f 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x342040(__GFP_IO|__GFP_NOWARN|__GFP_COMP|__GFP_HARDWALL|__GFP_THISNODE), pid 2963, tgid 2963 (udevd), ts 139732238007, free_ts 139730893262 prep_new_page mm/page_alloc.c:2441 [inline] get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4182 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5408 __alloc_pages_node include/linux/gfp.h:587 [inline] kmem_getpages mm/slab.c:1378 [inline] cache_grow_begin+0x75/0x350 mm/slab.c:2584 cache_alloc_refill+0x27f/0x380 mm/slab.c:2957 ____cache_alloc mm/slab.c:3040 [inline] ____cache_alloc mm/slab.c:3023 [inline] __do_cache_alloc mm/slab.c:3267 [inline] slab_alloc mm/slab.c:3309 [inline] __do_kmalloc mm/slab.c:3708 [inline] __kmalloc+0x3b3/0x4d0 mm/slab.c:3719 kmalloc include/linux/slab.h:586 [inline] kzalloc include/linux/slab.h:714 [inline] tomoyo_encode2.part.0+0xe9/0x3a0 security/tomoyo/realpath.c:45 tomoyo_encode2 security/tomoyo/realpath.c:31 [inline] tomoyo_encode+0x28/0x50 security/tomoyo/realpath.c:80 tomoyo_realpath_from_path+0x186/0x620 security/tomoyo/realpath.c:288 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x21b/0x400 security/tomoyo/file.c:822 security_inode_getattr+0xcf/0x140 security/security.c:1350 vfs_getattr fs/stat.c:157 [inline] vfs_statx+0x16a/0x390 fs/stat.c:232 vfs_fstatat+0x8c/0xb0 fs/stat.c:255 __do_sys_newfstatat+0x91/0x110 fs/stat.c:425 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1356 [inline] free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1406 free_unref_page_prepare mm/page_alloc.c:3328 [inline] free_unref_page+0x19/0x6a0 mm/page_alloc.c:3423 __vunmap+0x85d/0xd30 mm/vmalloc.c:2667 __vfree+0x3c/0xd0 mm/vmalloc.c:2715 vfree+0x5a/0x90 mm/vmalloc.c:2746 __do_replace+0x16b/0x890 net/ipv6/netfilter/ip6_tables.c:1117 do_replace net/ipv6/netfilter/ip6_tables.c:1157 [inline] do_ip6t_set_ctl+0x90d/0xb90 net/ipv6/netfilter/ip6_tables.c:1639 nf_setsockopt+0x83/0xe0 net/netfilter/nf_sockopt.c:101 ipv6_setsockopt+0x122/0x180 net/ipv6/ipv6_sockglue.c:1026 tcp_setsockopt+0x136/0x2520 net/ipv4/tcp.c:3696 __sys_setsockopt+0x2db/0x6a0 net/socket.c:2180 __do_sys_setsockopt net/socket.c:2191 [inline] __se_sys_setsockopt net/socket.c:2188 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2188 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Memory state around the buggy address: ffff88807d37b800: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc ffff88807d37b880: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc >ffff88807d37b900: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffff88807d37b980: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff88807d37ba00: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc Fixes: c85bb41e ("igmp: fix ip_mc_sf_allow race [v5]") Signed-off-by:
syzbot <syzkaller@googlegroups.com> Cc: Flavio Leitner <fbl@sysclose.org> Signed-off-by:
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David Howells authored
AF_RXRPC doesn't currently enable IPv6 UDP Tx checksums on the transport socket it opens and the checksums in the packets it generates end up 0. It probably should also enable IPv6 UDP Rx checksums and IPv4 UDP checksums. The latter only seem to be applied if the socket family is AF_INET and don't seem to apply if it's AF_INET6. IPv4 packets from an IPv6 socket seem to have checksums anyway. What seems to have happened is that the inet_inv_convert_csum() call didn't get converted to the appropriate udp_port_cfg parameters - and udp_sock_create() disables checksums unless explicitly told not too. Fix this by enabling the three udp_port_cfg checksum options. Fixes: 1a9b86c9 ("rxrpc: use udp tunnel APIs instead of open code in rxrpc_open_socket") Reported-by:
Marc Dionne <marc.dionne@auristor.com> Signed-off-by:
David Howells <dhowells@redhat.com> Reviewed-by:
Xin Long <lucien.xin@gmail.com> Reviewed-by:
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Yang Yingliang authored
'tmp_node' need be put before returning from cpsw_probe_dt(), so add missing of_node_put() in error path. Fixes: ed3525ed ("net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac") Signed-off-by:
Yang Yingliang <yangyingliang@huawei.com> Signed-off-by:
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Yang Yingliang authored
The node pointer returned by of_get_child_by_name() with refcount incremented, so add of_node_put() after using it. Fixes: 634db83b ("net: stmmac: dwmac-sun8i: Handle integrated/external MDIOs") Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
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Yang Yingliang authored
Add of_node_put() if of_get_phy_mode() fails in mt7530_setup() Fixes: 0c65b2b9 ("net: of_get_phy_mode: Change API to solve int/unit warnings") Reported-by:
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Arun Ramadoss authored
This patch limits the sniffing to only one port during the mirror add. And during the mirror_del it checks for all the ports using the sniff, if and only if no other ports are referring, sniffing is disabled. The code is updated based on the review comments of LAN937x port mirror patch. Link: https://patchwork.kernel.org/project/netdevbpf/patch/20210422094257.1641396-8-prasanna.vengateshan@microchip.com/ Fixes: b987e98e ("dsa: add DSA switch driver for Microchip KSZ9477") Signed-off-by:
Prasanna Vengateshan <prasanna.vengateshan@microchip.com> Signed-off-by:
Arun Ramadoss <arun.ramadoss@microchip.com> Link: https://lore.kernel.org/r/20220428070709.7094-1-arun.ramadoss@microchip.comSigned-off-by:
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Qiao Ma authored
If wq has only one page, we need to check wqe rolling over page by compare end_idx and curr_idx, and then copy wqe to shadow wqe to avoid out of bound access. This work has been done in hinic_get_wqe, but missed for hinic_read_wqe. This patch fixes it, and removes unnecessary MASKED_WQE_IDX(). Fixes: 7dd29ee1 ("hinic: add sriov feature support") Signed-off-by:
Qiao Ma <mqaio@linux.alibaba.com> Reviewed-by:
Xunlei Pang <xlpang@linux.alibaba.com> Link: https://lore.kernel.org/r/282817b0e1ae2e28fdf3ed8271a04e77f57bf42e.1651148587.git.mqaio@linux.alibaba.comSigned-off-by:
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Niels Dossche authored
Error values inside the probe function must be < 0. The ENOMEM return value has the wrong sign: it is positive instead of negative. Add a minus sign. Fixes: e2397567 ("net: mdio: Add BCM6368 MDIO mux bus controller") Signed-off-by:
Niels Dossche <dossche.niels@gmail.com> Reviewed-by:
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Yang Yingliang authored
The node pointer returned by of_parse_phandle() with refcount incremented, so add of_node_put() after using it in mtk_sgmii_init(). Fixes: 9ffee4a8 ("net: ethernet: mediatek: Extend SGMII related functions") Signed-off-by:
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Jakub Kicinski authored
Hangbin Liu says: ==================== selftests: net: add missing tests to Makefile When generating the selftests to another folder, the fixed tests are missing as they are not in Makefile. The missing tests are generated by command: $ for f in $(ls *.sh); do grep -q $f Makefile || echo $f; done ==================== Link: https://lore.kernel.org/r/20220428044511.227416-1-liuhangbin@gmail.comSigned-off-by:
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Hangbin Liu authored
When generating the selftests to another folder, the fixed tests are missing as they are not in Makefile, e.g. make -C tools/testing/selftests/ install \ TARGETS="net/forwarding" INSTALL_PATH=/tmp/kselftests Signed-off-by:
Hangbin Liu <liuhangbin@gmail.com> Signed-off-by:
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