video: fbdev: cirrusfb: check pixclock to avoid divide by zero (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.25 % · centile 17 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: video: fbdev: cirrusfb: check pixclock to avoid divide by zero Do a sanity check on pixclock value to avoid divide by zero. If the pixclock value is zero, the cirrusfb driver will round up pixclock to get the derived frequency as close to maxclock as possible. Syzkaller reported a divide error in cirrusfb_check_pixclock. divide error: 0000 [#1] SMP KASAN PTI CPU: 0 PID: 14938 Comm: cirrusfb_test Not tainted 5.15.0-rc6 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2 RIP: 0010:cirrusfb_check_var+0x6f1/0x1260 Call Trace: fb_set_var+0x398/0xf90 do_fb_ioctl+0x4b8/0x6f0 fb_ioctl+0xeb/0x130 __x64_sys_ioctl+0x19d/0x220 do_syscall_64+0x3a/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae
Faiblesses (CWE)
- CWE-369 — Division par zéro
Références
- https://git.kernel.org/stable/c/c656d04247a2654ede5cead2ecbf83431dad5261
- https://git.kernel.org/stable/c/1d3fb46439ad4e8f0c5739eb33d1875ac9e0f135
- https://git.kernel.org/stable/c/40b13e3d85744210db13457785646634e2d056bd
- https://git.kernel.org/stable/c/53a2088a396cfa1da92690a1da289634cd73bf0d
- https://git.kernel.org/stable/c/8c7e2141fb89c620ab4e41512e262fbf25b8260d
- https://git.kernel.org/stable/c/6fe23ff94e7840097202e85c148688940b37c9b1
- https://git.kernel.org/stable/c/45800c42ef000f417270bcfc08630e42486fca99
- https://git.kernel.org/stable/c/e498b504f8c81b07efab9febf8503448de4dc9cf
- https://git.kernel.org/stable/c/5c6f402bdcf9e7239c6bc7087eda71ac99b31379
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| 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 | CISA-ADP |
| 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) |
| 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 · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2021-34663
- GCVE · GCVE-0-2021-47641
Avis du CERT-FR
- 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
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*< 4.9.311cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.10 < 4.14.276cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.238cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.189cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.110cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.33cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.16.19cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.17 < 5.17.2
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c656d04247a2654ede5cead2ecbf83431dad5261 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1d3fb46439ad4e8f0c5739eb33d1875ac9e0f135 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 40b13e3d85744210db13457785646634e2d056bd ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 53a2088a396cfa1da92690a1da289634cd73bf0d ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8c7e2141fb89c620ab4e41512e262fbf25b8260d ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6fe23ff94e7840097202e85c148688940b37c9b1 |
| Linux · Linux | affected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 4.9.311 ≤ 4.9.* ; unaffected 4.14.276 ≤ 4.14.* ; unaffected 4.19.238 ≤ 4.19.* ; unaffected 5.4.189 ≤ 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 |