CVE-2026-98730: Linux kernel · Bluetooth: btintel_pcie: reject oversized TX packets in send_frame()
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in f771f96557a4d953a7e4d045870547271e36e819 : patch Linux kernel soon.
Data as of 26 Oct 2026, 11:42 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in f771f96557a4d953a7e4d045870547271e36e819, 9806a748f9ab223b733624367b6ddda77fb9450e, 84df222de86eabed543361025ed54ce838c0b573 +1
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Oct 2026
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 Linux kernel to f771f96557a4d953a7e4d045870547271e36e819, 9806a748f9ab223b733624367b6ddda77fb9450e, 84df222de86eabed543361025ed54ce838c0b573 or 3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in the Linux kernel. Users should update to a fixed kernel version that includes the patches identified by commits f771f96557a4d953a7e4d045870547271e36e819, 9806a748f9ab223b733624367b6ddda77fb9450e, 84df222de86eabed543361025ed54ce838c0b573, or 3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc. No additional mitigation is required once updated.
Description
A vulnerability in the Linux kernel Bluetooth subsystem (btintel_pcie) allows a user-space process with HCI_CHANNEL_USER access to inject oversized transmit packets, causing a buffer overflow in the send_frame() function. This occurs because the function copies data into a fixed-size 4096-byte DMA buffer without properly rejecting packets that exceed the buffer size minus the PCIe header length. The issue has been fixed by rejecting packets larger than the allowed size on entry.
References
- git.kernel.org/stable/c/3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc (opens in a new tab)
- git.kernel.org/stable/c/84df222de86eabed543361025ed54ce838c0b573 (opens in a new tab)
- git.kernel.org/stable/c/9806a748f9ab223b733624367b6ddda77fb9450e (opens in a new tab)
- git.kernel.org/stable/c/f771f96557a4d953a7e4d045870547271e36e819 (opens in a new tab)