Description
In the Linux kernel, the following vulnerability has been resolved: net: usb: lan78xx: Fix double free issue with interrupt buffer allocation In lan78xx_probe(), the buffer `buf` was being freed twice: once implicitly through `usb_free_urb(dev->urb_intr)` with the `URB_FREE_BUFFER` flag and again explicitly by `kfree(buf)`. This caused a double free issue. To resolve this, reordered `kmalloc()` and `usb_alloc_urb()` calls to simplify the initialization sequence and removed the redundant `kfree(buf)`. Now, `buf` is allocated after `usb_alloc_urb()`, ensuring it is correctly managed by `usb_fill_int_urb()` and freed by `usb_free_urb()` as intended.
References (6)
Scores
CVSS v3
7.8
EPSS
0.0001
EPSS Percentile
2.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-415
Status
published
Products (5)
linux/Kernel
5.17.0 - 6.1.120linux
linux/Kernel
6.12.0 - 6.12.2linux
linux/Kernel
6.2.0 - 6.6.64linux
linux/Kernel
6.7.0 - 6.11.11linux
linux/linux_kernel
5.17 - 6.1.120
Published
Dec 27, 2024
Tracked Since
Feb 18, 2026