CVE-2026-68479

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Source
https://cve.org/CVERecord?id=CVE-2026-68479
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68479.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-68479
Downstream
Published
2026-08-15T05:51:34.106Z
Modified
2026-08-18T03:56:17.380137076Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Bluetooth: btrtl: validate firmware patch bounds
Details

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: btrtl: validate firmware patch bounds

rtlbtparsefirmware() copies patch_length - 4 bytes before appending the firmware version. A malformed firmware patch shorter than the version field can make this subtraction underflow and turn the copy into an oversized read and write during Bluetooth setup.

The existing patchoffset + patchlength check can also wrap on 32-bit architectures. Validate the patch length and range without arithmetic overflow before allocating or copying the patch.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68479.json"
}
References

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
Introduced
db33c77dddc2ed2cff3061d0b096a9f5ab0c3647
Fixed
39e01b4addfbbe177567d6ed1dfb81f9cccb19e6
Fixed
bda3c598ade6ea03884074b91e31608326684921
Fixed
a4cb830e0b55ac76c849fd7840afb251f4c028fa
Fixed
68c5a2a19987c035eb129e627e579adafb04f637
Fixed
83534891c058ed71e251135072640911670869aa
Fixed
6744ab60dfac55d1df5733960aad5be300984301
Fixed
f1ca750c0510bdbb504bf084d2f196ef2af92ea6
Fixed
609c5b04a28dc1b0f3af6a7bc93055135b2d2059

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68479.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.2.0
Fixed
5.10.261
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.212
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.178
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.145
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.97
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.40
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68479.json"