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Jiawen Wu 10e27b2a6e net: libwx: properly reset Rx ring descriptor
commit d992ed7e1b upstream.

When device reset is triggered by feature changes such as toggling Rx
VLAN offload, wx->do_reset() is called to reinitialize Rx rings. The
hardware descriptor ring may retain stale values from previous sessions.
And only set the length to 0 in rx_desc[0] would result in building
malformed SKBs. Fix it to ensure a clean slate after device reset.

[  549.186435] [     C16] ------------[ cut here ]------------
[  549.186457] [     C16] kernel BUG at net/core/skbuff.c:2814!
[  549.186468] [     C16] Oops: invalid opcode: 0000 [#1] SMP NOPTI
[  549.186472] [     C16] CPU: 16 UID: 0 PID: 0 Comm: swapper/16 Kdump: loaded Not tainted 6.16.0-rc4+ #23 PREEMPT(voluntary)
[  549.186476] [     C16] Hardware name: Micro-Star International Co., Ltd. MS-7E16/X670E GAMING PLUS WIFI (MS-7E16), BIOS 1.90 12/31/2024
[  549.186478] [     C16] RIP: 0010:__pskb_pull_tail+0x3ff/0x510
[  549.186484] [     C16] Code: 06 f0 ff 4f 34 74 7b 4d 8b 8c 24 c8 00 00 00 45 8b 84 24 c0 00 00 00 e9 c8 fd ff ff 48 c7 44 24 08 00 00 00 00 e9 5e fe ff ff <0f> 0b 31 c0 e9 23 90 5b ff 41 f7 c6 ff 0f 00 00 75 bf 49 8b 06 a8
[  549.186487] [     C16] RSP: 0018:ffffb391c0640d70 EFLAGS: 00010282
[  549.186490] [     C16] RAX: 00000000fffffff2 RBX: ffff8fe7e4d40200 RCX: 00000000fffffff2
[  549.186492] [     C16] RDX: ffff8fe7c3a4bf8e RSI: 0000000000000180 RDI: ffff8fe7c3a4bf40
[  549.186494] [     C16] RBP: ffffb391c0640da8 R08: ffff8fe7c3a4c0c0 R09: 000000000000000e
[  549.186496] [     C16] R10: ffffb391c0640d88 R11: 000000000000000e R12: ffff8fe7e4d40200
[  549.186497] [     C16] R13: 00000000fffffff2 R14: ffff8fe7fa01a000 R15: 00000000fffffff2
[  549.186499] [     C16] FS:  0000000000000000(0000) GS:ffff8fef5ae40000(0000) knlGS:0000000000000000
[  549.186502] [     C16] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  549.186503] [     C16] CR2: 00007f77d81d6000 CR3: 000000051a032000 CR4: 0000000000750ef0
[  549.186505] [     C16] PKRU: 55555554
[  549.186507] [     C16] Call Trace:
[  549.186510] [     C16]  <IRQ>
[  549.186513] [     C16]  ? srso_alias_return_thunk+0x5/0xfbef5
[  549.186517] [     C16]  __skb_pad+0xc7/0xf0
[  549.186523] [     C16]  wx_clean_rx_irq+0x355/0x3b0 [libwx]
[  549.186533] [     C16]  wx_poll+0x92/0x120 [libwx]
[  549.186540] [     C16]  __napi_poll+0x28/0x190
[  549.186544] [     C16]  net_rx_action+0x301/0x3f0
[  549.186548] [     C16]  ? srso_alias_return_thunk+0x5/0xfbef5
[  549.186551] [     C16]  ? __raw_spin_lock_irqsave+0x1e/0x50
[  549.186554] [     C16]  ? srso_alias_return_thunk+0x5/0xfbef5
[  549.186557] [     C16]  ? wake_up_nohz_cpu+0x35/0x160
[  549.186559] [     C16]  ? srso_alias_return_thunk+0x5/0xfbef5
[  549.186563] [     C16]  handle_softirqs+0xf9/0x2c0
[  549.186568] [     C16]  __irq_exit_rcu+0xc7/0x130
[  549.186572] [     C16]  common_interrupt+0xb8/0xd0
[  549.186576] [     C16]  </IRQ>
[  549.186577] [     C16]  <TASK>
[  549.186579] [     C16]  asm_common_interrupt+0x22/0x40
[  549.186582] [     C16] RIP: 0010:cpuidle_enter_state+0xc2/0x420
[  549.186585] [     C16] Code: 00 00 e8 11 0e 5e ff e8 ac f0 ff ff 49 89 c5 0f 1f 44 00 00 31 ff e8 0d ed 5c ff 45 84 ff 0f 85 40 02 00 00 fb 0f 1f 44 00 00 <45> 85 f6 0f 88 84 01 00 00 49 63 d6 48 8d 04 52 48 8d 04 82 49 8d
[  549.186587] [     C16] RSP: 0018:ffffb391c0277e78 EFLAGS: 00000246
[  549.186590] [     C16] RAX: ffff8fef5ae40000 RBX: 0000000000000003 RCX: 0000000000000000
[  549.186591] [     C16] RDX: 0000007fde0faac5 RSI: ffffffff826e53f6 RDI: ffffffff826fa9b3
[  549.186593] [     C16] RBP: ffff8fe7c3a20800 R08: 0000000000000002 R09: 0000000000000000
[  549.186595] [     C16] R10: 0000000000000000 R11: 000000000000ffff R12: ffffffff82ed7a40
[  549.186596] [     C16] R13: 0000007fde0faac5 R14: 0000000000000003 R15: 0000000000000000
[  549.186601] [     C16]  ? cpuidle_enter_state+0xb3/0x420
[  549.186605] [     C16]  cpuidle_enter+0x29/0x40
[  549.186609] [     C16]  cpuidle_idle_call+0xfd/0x170
[  549.186613] [     C16]  do_idle+0x7a/0xc0
[  549.186616] [     C16]  cpu_startup_entry+0x25/0x30
[  549.186618] [     C16]  start_secondary+0x117/0x140
[  549.186623] [     C16]  common_startup_64+0x13e/0x148
[  549.186628] [     C16]  </TASK>

Fixes: 3c47e8ae11 ("net: libwx: Support to receive packets in NAPI")
Cc: stable@vger.kernel.org
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250714024755.17512-4-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-07-24 08:56:26 +02:00
arch arm64: dts: rockchip: use cs-gpios for spi1 on ringneck 2025-07-24 08:56:25 +02:00
block block: Clear BIO_EMULATES_ZONE_APPEND flag on BIO completion 2025-06-27 11:11:19 +01:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: ecdsa - Harden against integer overflows in DIV_ROUND_UP() 2025-07-17 18:37:24 +02:00
Documentation bpf: Adjust free target to avoid global starvation of LRU map 2025-07-17 18:37:22 +02:00
drivers net: libwx: properly reset Rx ring descriptor 2025-07-24 08:56:26 +02:00
fs isofs: Verify inode mode when loading from disk 2025-07-24 08:56:25 +02:00
include crypto: ecdsa - Harden against integer overflows in DIV_ROUND_UP() 2025-07-17 18:37:24 +02:00
init rust: clean Rust 1.88.0's unnecessary_transmutes lint 2025-05-18 08:24:51 +02:00
io_uring io_uring/poll: fix POLLERR handling 2025-07-24 08:56:23 +02:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:11:22 +01:00
kernel tracing/osnoise: Fix crash in timerlat_dump_stack() 2025-07-24 08:56:22 +02:00
lib lib/alloc_tag: do not acquire non-existent lock in alloc_tag_top_users() 2025-07-17 18:37:14 +02:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm kasan: remove kasan_find_vm_area() to prevent possible deadlock 2025-07-17 18:37:23 +02:00
net af_packet: fix soft lockup issue caused by tpacket_snd() 2025-07-24 08:56:25 +02:00
rust rust: init: allow dead_code warnings for Rust >= 1.89.0 2025-07-17 18:37:14 +02:00
samples samples/bpf: Fix compilation failure for samples/bpf on LoongArch Fedora 2025-05-29 11:02:01 +02:00
scripts scripts/gdb: fix interrupts.py after maple tree conversion 2025-07-17 18:37:13 +02:00
security selinux: change security_compute_sid to return the ssid or tsid on match 2025-07-10 16:05:04 +02:00
sound ALSA: hda/realtek: Add quirk for ASUS ROG Strix G712LWS 2025-07-24 08:56:23 +02:00
tools objtool/rust: add one more noreturn Rust function for Rust 1.89.0 2025-07-24 08:56:22 +02:00
usr kbuild: hdrcheck: fix cross build with clang 2025-03-13 13:02:18 +01:00
virt KVM: Allow CPU to reschedule while setting per-page memory attributes 2025-07-17 18:37:08 +02:00
.clang-format clang-format: Update with v6.11-rc1's for_each macro list 2024-08-02 13:20:31 +02:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-18 08:24:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore rust: introduce .clippy.toml 2025-03-13 13:01:42 +01:00
.mailmap mailmap: add entry for Thorsten Blum 2024-11-07 14:14:59 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Remove self from DSA entry 2024-11-03 12:52:38 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: Update Alexey Makhalov's email address 2025-05-22 14:29:46 +02:00
Makefile Linux 6.12.39 2025-07-17 18:37:24 +02:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.