Bug 2365028 (CVE-2025-37810) - CVE-2025-37810 kernel: usb: dwc3: gadget: check that event count does not exceed event buffer length
Summary: CVE-2025-37810 kernel: usb: dwc3: gadget: check that event count does not exc...
Keywords:
Status: NEW
Alias: CVE-2025-37810
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-05-08 07:02 UTC by OSIDB Bzimport
Modified: 2025-05-08 10:50 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2025-05-08 07:02:17 UTC
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

Comment 1 Avinash Hanwate 2025-05-08 10:47:41 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050816-CVE-2025-37810-57c4@gregkh/T


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