Bug 2367538 (CVE-2025-37937) - CVE-2025-37937 kernel: objtool, media: dib8000: Prevent divide-by-zero in dib8000_set_dds()
Summary: CVE-2025-37937 kernel: objtool, media: dib8000: Prevent divide-by-zero in dib...
Keywords:
Status: NEW
Alias: CVE-2025-37937
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-05-20 16:02 UTC by OSIDB Bzimport
Modified: 2025-05-21 00:02 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-05-20 16:02:58 UTC 
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()
Comment 1 Jon Moroney 2025-05-20 23:54:20 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025052044-CVE-2025-37937-3de0@gregkh/T
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