| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-22067: spi: cadence: Fix out-of-bounds array access in cdns_mrvl_xspi_setup_clock() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| spi: cadence: Fix out-of-bounds array access in cdns_mrvl_xspi_setup_clock() |
| |
| If requested_clk > 128, cdns_mrvl_xspi_setup_clock() iterates over the |
| entire cdns_mrvl_xspi_clk_div_list array without breaking out early, |
| causing 'i' to go beyond the array bounds. |
| |
| Fix that by stopping the loop when it gets to the last entry, clamping |
| the clock to the minimum 6.25 MHz. |
| |
| Fixes the following warning with an UBSAN kernel: |
| |
| vmlinux.o: warning: objtool: cdns_mrvl_xspi_setup_clock: unexpected end of section .text.cdns_mrvl_xspi_setup_clock |
| |
| The Linux kernel CVE team has assigned CVE-2025-22067 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.12 with commit 26d34fdc49712ddbd42b11102f5d9d78a0f42097 and fixed in 6.12.23 with commit e50781bf7accc75883cb8a6a9921fb4e2fa8cca4 |
| Issue introduced in 6.12 with commit 26d34fdc49712ddbd42b11102f5d9d78a0f42097 and fixed in 6.13.11 with commit c1fb84e274cb6a2bce6ba5e65116c06e0b3ab275 |
| Issue introduced in 6.12 with commit 26d34fdc49712ddbd42b11102f5d9d78a0f42097 and fixed in 6.14.2 with commit 645f1813fe0dc96381c36b834131e643b798fd73 |
| Issue introduced in 6.12 with commit 26d34fdc49712ddbd42b11102f5d9d78a0f42097 and fixed in 6.15 with commit 7ba0847fa1c22e7801cebfe5f7b75aee4fae317e |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2025-22067 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/spi/spi-cadence-xspi.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/e50781bf7accc75883cb8a6a9921fb4e2fa8cca4 |
| https://git.kernel.org/stable/c/c1fb84e274cb6a2bce6ba5e65116c06e0b3ab275 |
| https://git.kernel.org/stable/c/645f1813fe0dc96381c36b834131e643b798fd73 |
| https://git.kernel.org/stable/c/7ba0847fa1c22e7801cebfe5f7b75aee4fae317e |
