Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3281ebb3dc5ef19507e65523e9f8c00e20b285ca before cc5aa8e3ad69dcedeba79e667d4a2efb72a305af; affected dcafa5a8452738eb28085f559b0683d55e22b2f5 before 2970ef2fce90c661952ec2b451b0276d5f8d6180; affected a6df95cae40bee555e01a37b4023ce8e97ffa249 before 977128343fc2a30737399b58df8ea77e94f164bd; affected a6df95cae40bee555e01a37b4023ce8e97ffa249 before a422ebec863d99d5607fb41bb7af3347fcb436d3; affected a6df95cae40bee555e01a37b4023ce8e97ffa249 before b09512aea6223eec756f52aa584fc29eeab57480; affected a6df95cae40bee555e01a37b4023ce8e97ffa249 before 7ac9f3c981eeceee2ec4d30d850f4a6f50a1ec40; affected a6df95cae40bee555e01a37b4023ce8e97ffa249 before 03819abbeb11117dcbba40bfe322b88c0c88a6b6; affected 5.10.252 before 5.10.258; affected 5.15.202 before 5.15.209 |
| Linux / Linux | affected 5.17; unaffected 0 before 5.17; unaffected 5.10.258 through 5.10.*; unaffected 5.15.209 through 5.15.*; unaffected 6.1.120 through 6.1.*; unaffected 6.6.64 through 6.6.*; unaffected 6.11.11 through 6.11.*; unaffected 6.12.2 through 6.12.*; unaffected 6.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/cc5aa8e3ad69dcedeba79e667d4a2efb72a305af
- https://git.kernel.org/stable/c/2970ef2fce90c661952ec2b451b0276d5f8d6180
- https://git.kernel.org/stable/c/977128343fc2a30737399b58df8ea77e94f164bd
- https://git.kernel.org/stable/c/a422ebec863d99d5607fb41bb7af3347fcb436d3
- https://git.kernel.org/stable/c/b09512aea6223eec756f52aa584fc29eeab57480
- https://git.kernel.org/stable/c/7ac9f3c981eeceee2ec4d30d850f4a6f50a1ec40
- https://git.kernel.org/stable/c/03819abbeb11117dcbba40bfe322b88c0c88a6b6
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.