wifi: rtw89: fix potential zero beacon interval in beacon tracking

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Summary

CVECVE-2026-43267
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 12:16:47 UTC
Updated2026-05-08 21:03:42 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: fix potential zero beacon interval in beacon tracking During fuzz testing, it was discovered that bss_conf->beacon_int might be zero, which could result in a division by zero error in subsequent calculations. Set a default value of 100 TU if the interval is zero to ensure stability.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-369

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d360551f265e3c942ce06cd6f4d2f7f67741bcbd 1260bee01493126cf9c872b6ca2af261173baa6d git Not specified
CNA Linux Linux affected d360551f265e3c942ce06cd6f4d2f7f67741bcbd e00c9a4ec84c0bb067833b34202f457badbbc1c1 git Not specified
CNA Linux Linux affected d360551f265e3c942ce06cd6f4d2f7f67741bcbd eb57be32f438c57c88d6ce756101c1dfbcc03bba git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 6.18.16 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.6 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/1260bee01493126cf9c872b6ca2af261173baa6d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e00c9a4ec84c0bb067833b34202f457badbbc1c1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/eb57be32f438c57c88d6ce756101c1dfbcc03bba 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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