| 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-2025-38479: dmaengine: fsl-edma: free irq correctly in remove path |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| dmaengine: fsl-edma: free irq correctly in remove path |
| |
| Add fsl_edma->txirq/errirq check to avoid below warning because no |
| errirq at i.MX9 platform. Otherwise there will be kernel dump: |
| WARNING: CPU: 0 PID: 11 at kernel/irq/devres.c:144 devm_free_irq+0x74/0x80 |
| Modules linked in: |
| CPU: 0 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.12.0-rc7#18 |
| Hardware name: NXP i.MX93 11X11 EVK board (DT) |
| Workqueue: events_unbound deferred_probe_work_func |
| pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) |
| pc : devm_free_irq+0x74/0x80 |
| lr : devm_free_irq+0x48/0x80 |
| Call trace: |
| devm_free_irq+0x74/0x80 (P) |
| devm_free_irq+0x48/0x80 (L) |
| fsl_edma_remove+0xc4/0xc8 |
| platform_remove+0x28/0x44 |
| device_remove+0x4c/0x80 |
| |
| The Linux kernel CVE team has assigned CVE-2025-38479 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.11 with commit 44eb827264de4f14d8317692441e13f5e2aadbf2 and fixed in 6.12.23 with commit 55e2dbe2ba787d4fc2306f6bb2f43fb32176e184 |
| Issue introduced in 6.11 with commit 44eb827264de4f14d8317692441e13f5e2aadbf2 and fixed in 6.13.11 with commit 38ff8769074db27387cb2323aaa751e59d168e6a |
| Issue introduced in 6.11 with commit 44eb827264de4f14d8317692441e13f5e2aadbf2 and fixed in 6.14.2 with commit f3834d2d68749e4760c27325149765930ad876fd |
| Issue introduced in 6.11 with commit 44eb827264de4f14d8317692441e13f5e2aadbf2 and fixed in 6.15 with commit fa70c4c3c580c239a0f9e83a14770ab026e8d820 |
| |
| 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-2025-38479 |
| 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/dma/fsl-edma-main.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/55e2dbe2ba787d4fc2306f6bb2f43fb32176e184 |
| https://git.kernel.org/stable/c/38ff8769074db27387cb2323aaa751e59d168e6a |
| https://git.kernel.org/stable/c/f3834d2d68749e4760c27325149765930ad876fd |
| https://git.kernel.org/stable/c/fa70c4c3c580c239a0f9e83a14770ab026e8d820 |
