CVE-2026-72146
dmaengine: sh: rz-dmac: Move interrupt request after everything is set up
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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().
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.15
References 7
git.kernel.org
- stable/c/d24d53323e817d79a4bd111bd10b34dbc96e64a8
- stable/c/0e0c5b3cf374ebf3c589741751e1fbc67f53ec2f
- stable/c/5b12de6229d662864ee22c11d4876652b40120f0
- stable/c/2a4d9e2234c3f817bb0ddbc8680d09ce9be84f93
- stable/c/ec9f66c91bffdb69d309bae6dfb387562db7ebc8
- stable/c/07ae600bd353b22f31a8f1007269744fafc7f123
- stable/c/731712403ddb39d1a76a11abf339a0615bc85de7