USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.30 % · percentile 23 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor Syzbot has identified a bug in usbcore (see the Closes: tag below) caused by our assumption that the reserved bits in an endpoint descriptor's bEndpointAddress field will always be 0. As a result of the bug, the endpoint_is_duplicate() routine in config.c (and possibly other routines as well) may believe that two descriptors are for distinct endpoints, even though they have the same direction and endpoint number. This can lead to confusion, including the bug identified by syzbot (two descriptors with matching endpoint numbers and directions, where one was interrupt and the other was bulk). To fix the bug, we will clear the reserved bits in bEndpointAddress when we parse the descriptor. (Note that both the USB-2.0 and USB-3.1 specs say these bits are "Reserved, reset to zero".) This requires us to make a copy of the descriptor earlier in usb_parse_endpoint() and use the copy instead of the original when checking for duplicates.
References
- https://git.kernel.org/stable/c/d8418fd083d1b90a6c007cf8dcf81aeae274727b
- https://git.kernel.org/stable/c/60abea505b726b38232a0ef410d2bd1994a77f78
- https://git.kernel.org/stable/c/d09dd21bb5215d583ca9a1cb1464dbc77a7e88cf
- https://git.kernel.org/stable/c/2bd8534a1b83c65702aec3cab164170f8e584188
- https://git.kernel.org/stable/c/9edcf317620d7c6a8354911b69b874cf89716646
- https://git.kernel.org/stable/c/647d61aef106dbed9c70447bcddbd4968e67ca64
- https://git.kernel.org/stable/c/37514a5c1251a8c5c95c323f55050736e7069ac7
- https://git.kernel.org/stable/c/a368ecde8a5055b627749b09c6218ef793043e47
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
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-2024-39383
- GCVE · GCVE-0-2024-41035
CERT-FR advisories
- CERTFR-2026-AVI-1165 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0677 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0002 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-1080 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-1013 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0997 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0957 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0840 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0838 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0823 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0822 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0821 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0800 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0799 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0779 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0778 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0719 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 3.2.87 < 3.3cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 3.10.106 < 3.11cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 3.12.70 < 3.13cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 3.16.42 < 3.17cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.1.39 < 4.2cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.4.42 < 4.5cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.9.3 < 4.10cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.10.1 < 4.19.318cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.280cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.222cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.163cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.100cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.41cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.9.10cpe:2.3:o:linux:linux_kernel:4.10:-:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.10:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.10:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.10:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.10:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.10:rc7:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.10:rc8:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.10:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.10:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.10:rc7:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 0a8fd1346254974c3a852338508e4a4cddbb35f1 < d8418fd083d1b90a6c007cf8dcf81aeae274727b ; affected 0a8fd1346254974c3a852338508e4a4cddbb35f1 < 60abea505b726b38232a0ef410d2bd1994a77f78 ; affected 0a8fd1346254974c3a852338508e4a4cddbb35f1 < d09dd21bb5215d583ca9a1cb1464dbc77a7e88cf ; affected 0a8fd1346254974c3a852338508e4a4cddbb35f1 < 2bd8534a1b83c65702aec3cab164170f8e584188 ; affected 0a8fd1346254974c3a852338508e4a4cddbb35f1 < 9edcf317620d7c6a8354911b69b874cf89716646 ; affected 0a8fd1346254974c3a852338508e4a4cddbb35f1 < 647d61aef106dbed9c70447bcddbd4968e67ca64 |
| Linux · Linux | affected 4.10 ; unaffected 0 < 4.10 ; unaffected 4.19.318 ≤ 4.19.* ; unaffected 5.4.280 ≤ 5.4.* ; unaffected 5.10.222 ≤ 5.10.* ; unaffected 5.15.163 ≤ 5.15.* |
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 |