What’s Vulnerable › Vulnerabilities

CVE-2026-98296: Bluetooth: btintel_pcie: validate TX skb length in send_sync

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-06 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel_pcie: validate TX skb length in send_sync btintel_pcie_prepare_tx() copies skb->len bytes into a fixed BTINTEL_PCIE_BUFFER_SIZE (4096) DMA slot via an unchecked memcpy. Oversized packets are currently rejected only in btintel_pcie_send_frame(); any future caller of btintel_pcie_send_sync() would silently overflow the DMA buffer. Add the bounds check in btintel_pcie_send_sync() itself, right before skb_push() and the DMA copy.

Affected products

• Linux kernel: 6.10 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4b837ebd0ea21ae5cc26f02dc042edc6fe7b46b9
• https://git.kernel.org/stable/c/84f353256e170dc4865d45007d1bc446ed566da7
• https://git.kernel.org/stable/c/c298a61e18029401486c40298a50fbeea7e7b663

Get alerted when CVE-2026-98296 or the next vulnerability affects your stack