| 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-2025-37803: udmabuf: fix a buf size overflow issue during udmabuf creation |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| udmabuf: fix a buf size overflow issue during udmabuf creation |
| |
| by casting size_limit_mb to u64 when calculate pglimit. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37803 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.20 with commit fbb0de795078190a9834b3409e4b009cfb18a6d4 and fixed in 5.4.293 with commit e84a08fc7e25cdad5d9a3def42cc770ff711193f |
| Issue introduced in 4.20 with commit fbb0de795078190a9834b3409e4b009cfb18a6d4 and fixed in 5.10.237 with commit 13fe12c037b470321436deec393030c6153cfeb9 |
| Issue introduced in 4.20 with commit fbb0de795078190a9834b3409e4b009cfb18a6d4 and fixed in 5.15.181 with commit 373512760e13fdaa726faa9502d0f5be2abb3d33 |
| Issue introduced in 4.20 with commit fbb0de795078190a9834b3409e4b009cfb18a6d4 and fixed in 6.1.136 with commit 3f6c9d66e0f8eb9679b57913aa64b4d2266f6fbe |
| Issue introduced in 4.20 with commit fbb0de795078190a9834b3409e4b009cfb18a6d4 and fixed in 6.6.89 with commit b2ff4e9c599b000833d16a917f519aa2e4a75de2 |
| Issue introduced in 4.20 with commit fbb0de795078190a9834b3409e4b009cfb18a6d4 and fixed in 6.14.5 with commit 2b8419c6ecf69007dcff54ea0b9f0b215282c55a |
| Issue introduced in 4.20 with commit fbb0de795078190a9834b3409e4b009cfb18a6d4 and fixed in 6.15 with commit 021ba7f1babd029e714d13a6bf2571b08af96d0f |
| |
| 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-2025-37803 |
| 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-buf/udmabuf.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/e84a08fc7e25cdad5d9a3def42cc770ff711193f |
| https://git.kernel.org/stable/c/13fe12c037b470321436deec393030c6153cfeb9 |
| https://git.kernel.org/stable/c/373512760e13fdaa726faa9502d0f5be2abb3d33 |
| https://git.kernel.org/stable/c/3f6c9d66e0f8eb9679b57913aa64b4d2266f6fbe |
| https://git.kernel.org/stable/c/b2ff4e9c599b000833d16a917f519aa2e4a75de2 |
| https://git.kernel.org/stable/c/2b8419c6ecf69007dcff54ea0b9f0b215282c55a |
| https://git.kernel.org/stable/c/021ba7f1babd029e714d13a6bf2571b08af96d0f |
