CVE-2022-49751: linux kernel — Fix

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.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
linux	linux_kernel	2.6.28 — 4.14.305
linux	linux_kernel	4.15 — 4.19.272
linux	linux_kernel	4.20 — 5.4.231
linux	linux_kernel	5.5 — 5.10.166
linux	linux_kernel	5.11 — 5.15.91
linux	linux_kernel	5.16 — 6.1.9
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/190b5c3bbd5df685bb1063bda048831d72b8f1d4 https://git.kernel.org/stable/c/216f35db6ec6a667cd9db4838d657c1d2f4684da https://git.kernel.org/stable/c/276052159ba94d4d9f5b453fb4707d6798c6b845 https://git.kernel.org/stable/c/36225a7c72e9e3e1ce4001b6ce72849f5c9a2d3b https://git.kernel.org/stable/c/89c62cee5d4d65ac75d99b5f986f7f94290e888f https://git.kernel.org/stable/c/bccd6df4c177b1ad766f16565ccc298653d027d0 https://git.kernel.org/stable/c/cfc7462ff824ed6718ed0272ee9aae88e20d469a

Frequently Asked Questions

What is CVE-2022-49751? +

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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49751? +

CVE-2022-49751 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2022-49751? +

CVE-2022-49751 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2022-49751? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2022-49751