CVSS 5.5 · Medium EPSS 0,27%
Kerentanan Missing Release of Memory after Effective Lifetime pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_open/close(): fix memory leak The gs_usb driver appears to suffer from a malady common to many USB CAN adapter drivers in that it performs usb_alloc_coherent() to allocate a number of USB request blocks (URBs) for RX, and then later relies on usb_kill_anchored_urbs() to free them, but this doesn't actually free them. As a result, this may be leaking DMA memory that's been used by the driver. This commit is an adaptation of the techniques found in the esd_usb2 driver where a similar design pattern led to a memory leak. It explicitly frees the RX URBs and their DMA memory via a call to usb_free_coherent(). Since the RX URBs were allocated in the gs_can_open(), we remove them in gs_can_close() rather than in the disconnect function as was done in esd_usb2. For more information, see the 928150fad41b ("can: esd_usb2: fix memory leak").
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 3.16 hingga sebelum 4.9.323 |
| linux | linux kernel | Versi 4.10 hingga sebelum 4.14.288 |
| linux | linux kernel | Versi 4.15 hingga sebelum 4.19.252 |
| linux | linux kernel | Versi 4.20 hingga sebelum 5.4.205 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.130 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.54 |
| linux | linux kernel | Versi 5.16 hingga sebelum 5.18.11 |
| linux | linux kernel | Versi 5.19 rc1 |
| linux | linux kernel | Versi 5.19 rc2 |
| linux | linux kernel | Versi 5.19 rc3 |
| linux | linux kernel | Versi 5.19 rc4 |
| linux | linux kernel | Versi 5.19 rc5 |