CVE-2026-72146
In the Linux kernel, the following vulnerability has been resolved: dmaengine: sh: rz-dmac: Move interrupt request after everything is set up Once the interrupt is requested, the interrupt handler may run immediately. Since the IRQ handler can access channel->ch_base, which is initialized only after requesting the IRQ, this may lead to invalid memory access. Likewise, the IRQ thread may access uninitialized data (the ld_free, ld_queue, and ld_active lists), which may also lead to issues. Request the interrupts only after everything is set up. To keep the error path simpler, use dmam_alloc_coherent() instead of dma_alloc_coherent().
Affected versions
Linux kernel versions
5.15
and later are affected. Fixed in
6.6.148,
6.12.101,
6.18.42,
7.1.5,
7.2-rc1
and their respective stable series.
References
5 totalFrequently asked questions
-
What is CVE-2026-72146?
CVE-2026-72146 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15 onward and has been patched in 6.6.148, 6.12.101, 6.18.42 and others. CVE-2026-72146 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2026-72146?
Yes. CVE-2026-72146 has been patched. Fixed versions include 6.6.148, 6.12.101, 6.18.42 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2026-72146 actively exploited?
No. CVE-2026-72146 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.