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Chen Yufeng d1fc4c0414 can: hi311x: fix null pointer dereference when resuming from sleep before interface was enabled 
[ Upstream commit 6b696808472197b77b888f50bc789a3bae077743 ]

This issue is similar to the vulnerability in the `mcp251x` driver,
which was fixed in commit 03c427147b ("can: mcp251x: fix resume from
sleep before interface was brought up").

In the `hi311x` driver, when the device resumes from sleep, the driver
schedules `priv->restart_work`. However, if the network interface was
not previously enabled, the `priv->wq` (workqueue) is not allocated and
initialized, leading to a null pointer dereference.

To fix this, we move the allocation and initialization of the workqueue
from the `hi3110_open` function to the `hi3110_can_probe` function.
This ensures that the workqueue is properly initialized before it is
used during device resume. And added logic to destroy the workqueue
in the error handling paths of `hi3110_can_probe` and in the
`hi3110_can_remove` function to prevent resource leaks.

Signed-off-by: Chen Yufeng <chenyufeng@iie.ac.cn>
Link: https://patch.msgid.link/20250911150820.250-1-chenyufeng@iie.ac.cn
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-15 11:56:24 +02:00
arch KVM: arm64: Fix softirq masking in FPSIMD register saving sequence 2025-10-15 11:56:21 +02:00
block block: reject invalid operation in submit_bio_noacct 2025-08-28 16:26:10 +02:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2025-04-25 10:44:04 +02:00
crypto crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg 2025-09-25 10:58:55 +02:00
Documentation docs: networking: can: change bcm_msg_head frames member to support flexible array 2025-09-19 16:29:58 +02:00
drivers can: hi311x: fix null pointer dereference when resuming from sleep before interface was enabled 2025-10-15 11:56:24 +02:00
fs btrfs: ref-verify: handle damaged extent root tree 2025-10-15 11:56:23 +02:00
include minmax.h: remove some #defines that are only expanded once 2025-10-15 11:56:23 +02:00
init sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP 2025-05-02 07:47:04 +02:00
io_uring io_uring: include dying ring in task_work "should cancel" state 2025-09-25 10:58:53 +02:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:07:30 +01:00
kernel minmax: make generic MIN() and MAX() macros available everywhere 2025-10-02 13:40:43 +02:00
lib minmax: don't use max() in situations that want a C constant expression 2025-10-15 11:56:21 +02:00
LICENSES
mm minmax: make generic MIN() and MAX() macros available everywhere 2025-10-02 13:40:43 +02:00
net minmax: add a few more MIN_T/MAX_T users 2025-10-02 13:40:43 +02:00
rust rust: module: place cleanup_module() in .exit.text section 2025-07-06 10:57:54 +02:00
samples ftrace/samples: Fix function size computation 2025-09-19 16:29:56 +02:00
scripts gcc-plugins: Remove TODO_verify_il for GCC >= 16 2025-10-15 11:56:20 +02:00
security apparmor: use the condition in AA_BUG_FMT even with debug disabled 2025-08-28 16:26:01 +02:00
sound ASoC: rt5682s: Adjust SAR ADC button mode to fix noise issue 2025-10-15 11:56:23 +02:00
tools perf subcmd: avoid crash in exclude_cmds when excludes is empty 2025-10-15 11:56:23 +02:00
usr kbuild: hdrcheck: fix cross build with clang 2025-06-27 11:07:25 +01:00
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-06-27 13:46:21 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Remove *.orig pattern from .gitignore 2024-10-17 15:21:15 +02:00
.mailmap
.rustfmt.toml
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS sign-file,extract-cert: move common SSL helper functions to a header 2025-04-25 10:44:04 +02:00
Makefile Linux 6.1.155 2025-10-02 13:40:43 +02:00
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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.

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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.