| 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-2025-37810: usb: dwc3: gadget: check that event count does not exceed event buffer length |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| usb: dwc3: gadget: check that event count does not exceed event buffer length |
| |
| The event count is read from register DWC3_GEVNTCOUNT. |
| There is a check for the count being zero, but not for exceeding the |
| event buffer length. |
| Check that event count does not exceed event buffer length, |
| avoiding an out-of-bounds access when memcpy'ing the event. |
| Crash log: |
| Unable to handle kernel paging request at virtual address ffffffc0129be000 |
| pc : __memcpy+0x114/0x180 |
| lr : dwc3_check_event_buf+0xec/0x348 |
| x3 : 0000000000000030 x2 : 000000000000dfc4 |
| x1 : ffffffc0129be000 x0 : ffffff87aad60080 |
| Call trace: |
| __memcpy+0x114/0x180 |
| dwc3_interrupt+0x24/0x34 |
| |
| The Linux kernel CVE team has assigned CVE-2025-37810 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.2 with commit 72246da40f3719af3bfd104a2365b32537c27d83 and fixed in 5.4.293 with commit 015c39f38e69a491d2abd5e98869a500a9459b3b |
| Issue introduced in 3.2 with commit 72246da40f3719af3bfd104a2365b32537c27d83 and fixed in 5.10.237 with commit b43225948b231b3f331194010f84512bee4d9f59 |
| Issue introduced in 3.2 with commit 72246da40f3719af3bfd104a2365b32537c27d83 and fixed in 5.15.181 with commit c0079630f268843a25ed75226169cba40e0d8880 |
| Issue introduced in 3.2 with commit 72246da40f3719af3bfd104a2365b32537c27d83 and fixed in 6.1.136 with commit a44547015287a19001384fe94dbff84c92ce4ee1 |
| Issue introduced in 3.2 with commit 72246da40f3719af3bfd104a2365b32537c27d83 and fixed in 6.6.89 with commit c4d80e41cb42008dceb35e5dbf52574d93beac0d |
| Issue introduced in 3.2 with commit 72246da40f3719af3bfd104a2365b32537c27d83 and fixed in 6.12.26 with commit 52a7c9d930b95aa8b1620edaba4818040c32631f |
| Issue introduced in 3.2 with commit 72246da40f3719af3bfd104a2365b32537c27d83 and fixed in 6.14.5 with commit 99d655119b870ee60e4dbf310aa9a1ed8d9ede3d |
| Issue introduced in 3.2 with commit 72246da40f3719af3bfd104a2365b32537c27d83 and fixed in 6.15 with commit 63ccd26cd1f6600421795f6ca3e625076be06c9f |
| |
| 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-2025-37810 |
| 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/usb/dwc3/gadget.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/015c39f38e69a491d2abd5e98869a500a9459b3b |
| https://git.kernel.org/stable/c/b43225948b231b3f331194010f84512bee4d9f59 |
| https://git.kernel.org/stable/c/c0079630f268843a25ed75226169cba40e0d8880 |
| https://git.kernel.org/stable/c/a44547015287a19001384fe94dbff84c92ce4ee1 |
| https://git.kernel.org/stable/c/c4d80e41cb42008dceb35e5dbf52574d93beac0d |
| https://git.kernel.org/stable/c/52a7c9d930b95aa8b1620edaba4818040c32631f |
| https://git.kernel.org/stable/c/99d655119b870ee60e4dbf310aa9a1ed8d9ede3d |
| https://git.kernel.org/stable/c/63ccd26cd1f6600421795f6ca3e625076be06c9f |
