CVE-2025-38312
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-38312
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38312.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-38312
- Downstream
- Related
- Published
- 2025-07-10T07:42:20.647Z
- Modified
- 2025-11-28T02:35:27.051357Z
- Summary
- fbdev: core: fbcvt: avoid division by 0 in fb_cvt_hperiod()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
fbdev: core: fbcvt: avoid division by 0 in fbcvthperiod()
In fbfindmodecvt(), iff mode->refresh somehow happens to be 0x80000000, cvt.frefresh will become 0 when multiplying it by 2 due to overflow. It's then passed to fbcvthperiod(), where it's used as a divider -- division by 0 will result in kernel oops. Add a sanity check for cvt.f_refresh to avoid such overflow...
Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38312.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/2d63433e8eaa3c91b2948190e395bc67009db0d9
- https://git.kernel.org/stable/c/3f6dae09fc8c306eb70fdfef70726e1f154e173a
- https://git.kernel.org/stable/c/53784073cbad18f75583fd3da9ffdfc4d1f05405
- https://git.kernel.org/stable/c/54947530663edcbaaee1314c01fdd8c72861b124
- https://git.kernel.org/stable/c/610f247f2772e4f92b63442125a1b7ade79898d8
- https://git.kernel.org/stable/c/9027ce4c037b566b658b8939a76326b7125e3627
- https://git.kernel.org/stable/c/ab91647acdf43b984824776559a452212eaeb21a
- https://git.kernel.org/stable/c/b235393b9f43ff86a38ca2bde6372312ea215dc5
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38312.json
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://nvd.nist.gov/vuln/detail/CVE-2025-38312
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced96fe6a2109db29cd15b90a093c16e6cb4b19371aFixed9027ce4c037b566b658b8939a76326b7125e3627Fixed610f247f2772e4f92b63442125a1b7ade79898d8Fixed2d63433e8eaa3c91b2948190e395bc67009db0d9Fixed54947530663edcbaaee1314c01fdd8c72861b124Fixedab91647acdf43b984824776559a452212eaeb21aFixedb235393b9f43ff86a38ca2bde6372312ea215dc5Fixed53784073cbad18f75583fd3da9ffdfc4d1f05405Fixed3f6dae09fc8c306eb70fdfef70726e1f154e173a
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced2.6.14Fixed5.4.295
- Type
- ECOSYSTEM
- Events
-
Introduced5.5.0Fixed5.10.239
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.186
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.142
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.94
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.12.34
- Type
- ECOSYSTEM
- Events
-
Introduced6.13.0Fixed6.15.3