Bug 2348598 (CVE-2025-21794)

Summary: CVE-2025-21794 kernel: HID: hid-thrustmaster: fix stack-out-of-bounds read in usb_check_int_endpoints()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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OS: Linux   
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Description OSIDB Bzimport 2025-02-27 03:04:37 UTC 
In the Linux kernel, the following vulnerability has been resolved:

HID: hid-thrustmaster: fix stack-out-of-bounds read in usb_check_int_endpoints()

Syzbot[1] has detected a stack-out-of-bounds read of the ep_addr array from
hid-thrustmaster driver. This array is passed to usb_check_int_endpoints
function from usb.c core driver, which executes a for loop that iterates
over the elements of the passed array. Not finding a null element at the end of
the array, it tries to read the next, non-existent element, crashing the kernel.

To fix this, a 0 element was added at the end of the array to break the for
loop.

[1] https://syzkaller.appspot.com/bug?extid=9c9179ac46169c56c1ad
Comment 1 Michal Findra 2025-02-27 19:26:36 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022610-CVE-2025-21794-ddde@gregkh/T