Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:net: usb: lan78xx: Fix double free issue with interrupt buffer allocationIn lan78xx_probe(), the buffer `buf` was being freed twice: onceimplicitly through `usb_free_urb(dev->urb_intr)` with the`URB_FREE_BUFFER` flag and again explicitly by `kfree(buf)`. This causeda double free issue.To resolve this, reordered `kmalloc()` and `usb_alloc_urb()` calls tosimplify the initialization sequence and removed the redundant`kfree(buf)`. Now, `buf` is allocated after `usb_alloc_urb()`, ensuringit is correctly managed by `usb_fill_int_urb()` and freed by`usb_free_urb()` as intended.
No PoCs from references.
- https://github.com/cku-heise/euvd-api-doc
- https://github.com/w4zu/Debian_security