CVE-2025-37937: Linux kernel · objtool, media: dib8000: Prevent divide-by-zero in dib8000_set_dds()
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 5.4.0-1147.157~18.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.4.0-1147.157~18.04.1, 5.4.0-1152.159~18.04.1, 5.4.0-1150.159~18.04.1 +84
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 20 May 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
- ubuntu.com/security/notices/USN-7585-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7585-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7592-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7593-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7594-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-7597-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7597-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7598-1 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azure-6.11pkg:deb/ubuntu/linux-azure-6.11?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azure-nvidiapkg:deb/ubuntu/linux-azure-nvidia?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
In the Linux kernel, the following vulnerability has been resolved: objtool, media: dib8000: Prevent divide-by-zero in dib8000_set_dds() If dib8000_set_dds()'s call to dib8000_read32() returns zero, the result is a divide-by-zero. Prevent that from happening. Fixes the following warning with an UBSAN kernel: drivers/media/dvb-frontends/dib8000.o: warning: objtool: dib8000_tune() falls through to next function dib8096p_cfg_DibRx()
References
- ubuntu.com/security/CVE-2025-37937 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-37937 (opens in a new tab)
- git.kernel.org/linus/e63d465f59011dede0a0f1d21718b59a64c3ff5c (opens in a new tab)
- git.kernel.org/stable/c/536f7f3595ef8187cfa9ea50d7d24fcf4e84e166 (opens in a new tab)
- git.kernel.org/stable/c/6cfe46036b163e5a0f07c6b705b518148e1a8b2f (opens in a new tab)
- git.kernel.org/stable/c/75b42dfe87657ede3da3f279bd6b1b16d69af954 (opens in a new tab)
- git.kernel.org/stable/c/976a85782246a29ba0f6d411a7a4f524cb9ea987 (opens in a new tab)
- git.kernel.org/stable/c/9b76b198cf209797abcb1314c18ddeb90fe0827b (opens in a new tab)
- git.kernel.org/stable/c/b9249da6b0ed56269d4f21850df8e5b35dab50bd (opens in a new tab)
- git.kernel.org/stable/c/c8430e72b99936c206b37a8e2daebb3f8df7f2d8 (opens in a new tab)
- git.kernel.org/stable/c/cd80277f652138d2619f149f86ae6d17bce721d1 (opens in a new tab)
- git.kernel.org/stable/c/e63d465f59011dede0a0f1d21718b59a64c3ff5c (opens in a new tab)
- ubuntu.com/security/notices/USN-7585-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7585-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7592-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7593-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7594-1 (opens in a new tab)