| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-40991: dmaengine: ti: k3-udma-glue: Fix of_k3_udma_glue_parse_chn_by_id() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| dmaengine: ti: k3-udma-glue: Fix of_k3_udma_glue_parse_chn_by_id() |
| |
| The of_k3_udma_glue_parse_chn_by_id() helper function erroneously |
| invokes "of_node_put()" on the "udmax_np" device-node passed to it, |
| without having incremented its reference count at any point. Fix it. |
| |
| The Linux kernel CVE team has assigned CVE-2024-40991 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.9 with commit 81a1f90f20af71728f900f245aa69e9425fdef84 and fixed in 6.9.7 with commit a5ab5f413d1e4c7ed5f64271b025f0726374509e |
| Issue introduced in 6.9 with commit 81a1f90f20af71728f900f245aa69e9425fdef84 and fixed in 6.10 with commit ba27e9d2207784da748b19170a2e56bd7770bd81 |
| |
| 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-2024-40991 |
| 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/ti/k3-udma-glue.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/a5ab5f413d1e4c7ed5f64271b025f0726374509e |
| https://git.kernel.org/stable/c/ba27e9d2207784da748b19170a2e56bd7770bd81 |
