can: gs_usb: gs_usb_open/close(): fix memory leak (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.27 % · percentile 19 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
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").
Weaknesses (CWE)
- CWE-401 — Missing Release of Memory after Effective Lifetime
References
- https://git.kernel.org/stable/c/339fa9f80d3b94177a7a459c6d115d3b56007d5a
- https://git.kernel.org/stable/c/c1d806bc29ff7ffe0e2a023583c8720ed96cb0b0
- https://git.kernel.org/stable/c/d91492638b054f4a359621ef216242be5973ed6b
- https://git.kernel.org/stable/c/6f655b5e13fa4b27e915b6c209ac0da74fd75963
- https://git.kernel.org/stable/c/d0b8e223998866b3e7b2895927d4e9689b0a80d8
- https://git.kernel.org/stable/c/0e60230bc64355c80abe993d1719fdb318094e20
- https://git.kernel.org/stable/c/ffb6cc6601ec7c8fa963dcf76025df4a02f2cf5c
- https://git.kernel.org/stable/c/2bda24ef95c0311ab93bda00db40486acf30bd0a
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-54572
- GCVE · GCVE-0-2022-49661
CERT-FR advisories
- CERTFR-2025-AVI-0336 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0307 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0252 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0212 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 3.16 < 4.9.323cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.10 < 4.14.288cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.252cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.205cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.130cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.54cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.18.11cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected d08e973a77d128b25e01a08c34d89593fdf222da < 339fa9f80d3b94177a7a459c6d115d3b56007d5a ; affected d08e973a77d128b25e01a08c34d89593fdf222da < c1d806bc29ff7ffe0e2a023583c8720ed96cb0b0 ; affected d08e973a77d128b25e01a08c34d89593fdf222da < d91492638b054f4a359621ef216242be5973ed6b ; affected d08e973a77d128b25e01a08c34d89593fdf222da < 6f655b5e13fa4b27e915b6c209ac0da74fd75963 ; affected d08e973a77d128b25e01a08c34d89593fdf222da < d0b8e223998866b3e7b2895927d4e9689b0a80d8 ; affected d08e973a77d128b25e01a08c34d89593fdf222da < 0e60230bc64355c80abe993d1719fdb318094e20 |
| Linux · Linux | affected 3.16 ; unaffected 0 < 3.16 ; unaffected 4.9.323 ≤ 4.9.* ; unaffected 4.14.288 ≤ 4.14.* ; unaffected 4.19.252 ≤ 4.19.* ; unaffected 5.4.205 ≤ 5.4.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |