CVE-2026-90314
UnknownSummary
In the Linux kernel, rsc_table_for_each_entry() stored a firmware-supplied u32 offset into a signed int. A crafted offset such as 0xFFFFFFF0 became -16, bypassing the availability check and allowing an out-of-bounds read of hdr->type.
Risk Assessment
An out-of-bounds kernel memory read can be triggered by crafted remoteproc firmware, potentially leading to data leakage or system crash.
Recommendation
Update the Linux kernel to a version that stores the offset as u32 and validates it with unsigned comparisons before any pointer arithmetic.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS