CVE-2025-68333
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
22/12/2025
Last modified:
26/02/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
sched_ext: Fix possible deadlock in the deferred_irq_workfn()<br />
<br />
For PREEMPT_RT=y kernels, the deferred_irq_workfn() is executed in<br />
the per-cpu irq_work/* task context and not disable-irq, if the rq<br />
returned by container_of() is current CPU&#39;s rq, the following scenarios<br />
may occur:<br />
<br />
lock(&rq->__lock);<br />
<br />
lock(&rq->__lock);<br />
<br />
This commit use IRQ_WORK_INIT_HARD() to replace init_irq_work() to<br />
initialize rq->scx.deferred_irq_work, make the deferred_irq_workfn()<br />
is always invoked in hard-irq context.
Impact
Base Score 3.x
5.50
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.12 (including) | 6.12.68 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.13 (including) | 6.17.12 (excluding) |
| cpe:2.3:o:linux:linux_kernel:6.18:rc1:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.18:rc2:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.18:rc3:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.18:rc4:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.18:rc5:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.18:rc6:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page