media: dvb-frontends: dib3000mb: fix uninit-value in dib3000_write_reg (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.23 % · percentile 14 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: media: dvb-frontends: dib3000mb: fix uninit-value in dib3000_write_reg Syzbot reports [1] an uninitialized value issue found by KMSAN in dib3000_read_reg(). Local u8 rb[2] is used in i2c_transfer() as a read buffer; in case that call fails, the buffer may end up with some undefined values. Since no elaborate error handling is expected in dib3000_write_reg(), simply zero out rb buffer to mitigate the problem. [1] Syzkaller report dvb-usb: bulk message failed: -22 (6/0) ===================================================== BUG: KMSAN: uninit-value in dib3000mb_attach+0x2d8/0x3c0 drivers/media/dvb-frontends/dib3000mb.c:758 dib3000mb_attach+0x2d8/0x3c0 drivers/media/dvb-frontends/dib3000mb.c:758 dibusb_dib3000mb_frontend_attach+0x155/0x2f0 drivers/media/usb/dvb-usb/dibusb-mb.c:31 dvb_usb_adapter_frontend_init+0xed/0x9a0 drivers/media/usb/dvb-usb/dvb-usb-dvb.c:290 dvb_usb_adapter_init drivers/media/usb/dvb-usb/dvb-usb-init.c:90 [inline] dvb_usb_init drivers/media/usb/dvb-usb/dvb-usb-init.c:186 [inline] dvb_usb_device_init+0x25a8/0x3760 drivers/media/usb/dvb-usb/dvb-usb-init.c:310 dibusb_probe+0x46/0x250 drivers/media/usb/dvb-usb/dibusb-mb.c:110 ... Local variable rb created at: dib3000_read_reg+0x86/0x4e0 drivers/media/dvb-frontends/dib3000mb.c:54 dib3000mb_attach+0x123/0x3c0 drivers/media/dvb-frontends/dib3000mb.c:758 ...
Weaknesses (CWE)
- CWE-908 — Use of Uninitialized Resource
References
- https://git.kernel.org/stable/c/035772fcd631eee2756b31cb6df249c0a8d453d7
- https://git.kernel.org/stable/c/e11778189513cd7fb2edced5bd053bc18ede8418
- https://git.kernel.org/stable/c/53106510736e734ce8b731ba871363389bfbf4c9
- https://git.kernel.org/stable/c/3876e3a1c31a58a352c6bf5d2a90e3304445a637
- https://git.kernel.org/stable/c/1d6de21f00293d819b5ca6dbe75ff1f3b6392140
- https://git.kernel.org/stable/c/c1197c1457bb7098cf46366e898eb52b41b6876a
- https://git.kernel.org/stable/c/2dd59fe0e19e1ab955259978082b62e5751924c7
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.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-2024-53412
- GCVE · GCVE-0-2024-56769
CERT-FR advisories
- CERTFR-2025-AVI-0366 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0349 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0308 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0276 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0254 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0184 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0151 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0133 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0088 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.19 < 6.1.123cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.69cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.8cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 74340b0a8bc60b400c7e5fe4950303aa6f914d16 < 035772fcd631eee2756b31cb6df249c0a8d453d7 ; affected 74340b0a8bc60b400c7e5fe4950303aa6f914d16 < e11778189513cd7fb2edced5bd053bc18ede8418 ; affected 74340b0a8bc60b400c7e5fe4950303aa6f914d16 < 53106510736e734ce8b731ba871363389bfbf4c9 ; affected 74340b0a8bc60b400c7e5fe4950303aa6f914d16 < 3876e3a1c31a58a352c6bf5d2a90e3304445a637 ; affected 74340b0a8bc60b400c7e5fe4950303aa6f914d16 < 1d6de21f00293d819b5ca6dbe75ff1f3b6392140 ; affected 74340b0a8bc60b400c7e5fe4950303aa6f914d16 < c1197c1457bb7098cf46366e898eb52b41b6876a |
| Linux · Linux | affected 2.6.19 ; unaffected 0 < 2.6.19 ; unaffected 5.4.289 ≤ 5.4.* ; unaffected 5.10.233 ≤ 5.10.* ; unaffected 5.15.176 ≤ 5.15.* ; unaffected 6.1.123 ≤ 6.1.* |
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 |