Bug 2363314 (CVE-2025-37796) - CVE-2025-37796 kernel: wifi: at76c50x: fix use after free access in at76_disconnect
Summary: CVE-2025-37796 kernel: wifi: at76c50x: fix use after free access in at76_disc...
Keywords:
Status: NEW
Alias: CVE-2025-37796
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: 2025-05-01 14:03 UTC by OSIDB Bzimport
Modified: 2025-05-02 04:27 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-05-01 14:03:24 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: at76c50x: fix use after free access in at76_disconnect

The memory pointed to by priv is freed at the end of at76_delete_device
function (using ieee80211_free_hw). But the code then accesses the udev
field of the freed object to put the USB device. This may also lead to a
memory leak of the usb device. Fix this by using udev from interface.
Comment 1 Avinash Hanwate 2025-05-02 04:16:26 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050122-CVE-2025-37796-d6f9@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.