CVE-2022-49751: w1: fix WARNING after calling w1_process()
First published: Thu Mar 27 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: w1: fix WARNING after calling w1_process() I got the following WARNING message while removing driver(ds2482): ------------[ cut here ]------------ do not call blocking ops when !TASK_RUNNING; state=1 set at [<000000002d50bfb6>] w1_process+0x9e/0x1d0 [wire] WARNING: CPU: 0 PID: 262 at kernel/sched/core.c:9817 __might_sleep+0x98/0xa0 CPU: 0 PID: 262 Comm: w1_bus_master1 Tainted: G N 6.1.0-rc3+ #307 RIP: 0010:__might_sleep+0x98/0xa0 Call Trace: exit_signals+0x6c/0x550 do_exit+0x2b4/0x17e0 kthread_exit+0x52/0x60 kthread+0x16d/0x1e0 ret_from_fork+0x1f/0x30 The state of task is set to TASK_INTERRUPTIBLE in loop in w1_process(), set it to TASK_RUNNING when it breaks out of the loop to avoid the warning.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=2.6.28<4.14.305 | |
| Linux Kernel | >=4.15<4.19.272 | |
| Linux Kernel | >=4.20<5.4.231 | |
| Linux Kernel | >=5.5<5.10.166 | |
| Linux Kernel | >=5.11<5.15.91 | |
| Linux Kernel | >=5.16<6.1.9 | |
| Linux Kernel | =6.2-rc1 | |
| Linux Kernel | =6.2-rc2 | |
| Linux Kernel | =6.2-rc3 | |
| Linux Kernel | =6.2-rc4 |
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Reference Links
- https://git.kernel.org/stable/c/190b5c3bbd5df685bb1063bda048831d72b8f1d4
- https://git.kernel.org/stable/c/bccd6df4c177b1ad766f16565ccc298653d027d0
- https://git.kernel.org/stable/c/276052159ba94d4d9f5b453fb4707d6798c6b845
- https://git.kernel.org/stable/c/216f35db6ec6a667cd9db4838d657c1d2f4684da
- https://git.kernel.org/stable/c/89c62cee5d4d65ac75d99b5f986f7f94290e888f
- https://git.kernel.org/stable/c/cfc7462ff824ed6718ed0272ee9aae88e20d469a
- https://git.kernel.org/stable/c/36225a7c72e9e3e1ce4001b6ce72849f5c9a2d3b
Frequently Asked Questions
What is the severity of CVE-2022-49751?
CVE-2022-49751 has been classified with a warning severity in the Linux kernel, indicating potential instability when certain operations are executed.
What software is affected by CVE-2022-49751?
CVE-2022-49751 affects the Linux kernel, specifically impacting the behavior of the ds2482 driver.
How do I fix CVE-2022-49751?
To resolve CVE-2022-49751, update to the latest version of the Linux kernel where the vulnerability has been addressed.
What does CVE-2022-49751 warn about?
CVE-2022-49751 indicates a warning that blocking operations should not be called when the task state is not running.
Was CVE-2022-49751 an isolated incident?
CVE-2022-49751 refers to a specific issue within the Linux kernel and does not imply a broader vulnerability across all Linux components.
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