In the Linux kernel, the following vulnerability has been resolved:
firmware: arm_ffa: Fix out-of-bound writes in ffa_setup_and_transmit()
Sashiko (locally) reports multiple out-of-bound issues in ffa_setup_and_transmit: 1) Writing ep_mem_access->reserved can write out of bounds for FFA versions < 1.2 as ffa_emad_size_get() returns 16 bytes in that case while reserved has an offset of 24. Instead of zeroing fields, memset the struct to zero first based on the FFA version.
2) Make sure there is enough size to write constituents.
While at it, convert the only sizeof() in the driver that uses a type instead of variable.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel6.18Upgrade bpftool6.18Upgrade python3-perf6.18Upgrade perf6.18Upgrade perf6.18-debuginfoUpgrade python3-perf6.18-debuginfoUpgrade kernel6.18-tools-debuginfoUpgrade kernel6.18-modules-extra-commonUpgrade kernel6.18-develUpgrade kernel6.18-debuginfoUpgrade kernel6.18-modules-extraUpgrade kernel6.18-debuginfo-common-x86_64Upgrade microvm-kernel6.18Upgrade kernel-livepatch-6.18.44-99.149Upgrade kernel6.18-headersUpgrade kernel6.18-toolsUpgrade bpftool6.18-debuginfoUpgrade kernel6.18-tools-devel | Sep 30, 2026 | Aug 10, 2026 |
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