CVE-2026-90314 remoteproc: fix OOB read via signed offset in rsc_table_for_each_entry()
A signed integer overflow in the Linux kernel remoteproc driver allows out-of-bounds reads via crafted firmware offsets, potentially leading to information disclosure or crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-90314?
CVE-2026-90314 is a vulnerability in Linux, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
remoteproc: fix OOB read via signed offset in rsc_table_for_each_entry()
table->offset[i] is a u32 from firmware, but was stored into a signed int. A crafted offset like 0xFFFFFFF0 becomes -16, placing hdr 16 bytes before the table buffer. The subsequent avail check was bypassed because the negative int was promoted to a large size_t in the expression "table_sz - offset - sizeof(*hdr)", yielding a large positive avail and letting the out-of-bounds hdr->type read proceed undetected.
Store the offset as u32 and validate it with unsigned comparisons before any pointer arithmetic.
Which versions are affected by CVE-2026-90314?
How do I fix CVE-2026-90314?
Apply the vendor's patch.
Is CVE-2026-90314 being exploited?
There is no known exploitation of CVE-2026-90314 in the wild and no public exploit code.
Sources
Also known as AZL-102039, BELL-CVE-2026-90314, DEBIAN-CVE-2026-90314, GHSA-vjc5-x57x-7c9h, UBUNTU-CVE-2026-90314.