What’s Vulnerable › Vulnerabilities

CVE-2026-90314: remoteproc: fix OOB read via signed offset in rsc_table_for_each_entry()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-10-19

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.

Affected products

• Linux kernel: 3.4 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0d385be8f199b349f325cf90584b47b6a044ea79
• https://git.kernel.org/stable/c/6282d47b24b0c98d08d02807d676a7f67b4c052e
• https://git.kernel.org/stable/c/6a01ad25aa4f3a02153cf1d112cb9b65865cd5d8
• https://git.kernel.org/stable/c/6fd220604f06c746760183df74b07384c3fdd660
• https://git.kernel.org/stable/c/bb840ea69347aff7bde5a208e7b5b180669a7656
• https://git.kernel.org/stable/c/bc4940793aaa16a9cf90063b11d6926f8014a1b7
• https://git.kernel.org/stable/c/c82241a9454b2d30d53b50884f94b7972ba44a5e
• https://git.kernel.org/stable/c/cc85e0d3d3333fd5fd2d50c9a4578d209d7f2564

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