What’s Vulnerable › Vulnerabilities

CVE-2026-98633: Bluetooth: btnxpuart: Fix skb leak in nxp_process_fw_dump()

• 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: 2026-10-18 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btnxpuart: Fix skb leak in nxp_process_fw_dump() When CONFIG_DEV_COREDUMP=n, hci_devcd_append() returns -EOPNOTSUPP without freeing its skb argument. This leaks the cloned skb and also prevents nxp_set_ind_reset() from being called to perform recovery. Fix by guarding the hci_devcd_append(hdev, skb_clone(skb, GFP_ATOMIC)) call with IS_ENABLED(CONFIG_DEV_COREDUMP).

Affected products

• Linux kernel: 6.15 — 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/8a36598050cd1e5abb1d5ed42cc224cfcb538c4f
• https://git.kernel.org/stable/c/edcb84ee607a9ddfc6f2771a7f399115f0b0f19d
• https://git.kernel.org/stable/c/f2bbb36426581045a8bf7793da5419b9375e4348

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