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CVE-2026-98633

Linux: Bluetooth: btnxpuart: Fix skb leak in nxp_process_fw_dump()

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.17%Chance of exploitation activity in the next 30 days, higher than 5% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in8a36598050cd1e5abb1d5ed42cc224cfcb538c4fFixed versionCVE List
Published18 Oct 2026Updated 19 Oct 2026CVE List

What fixes it

  • 8a36598050cd1e5abb1d5ed42cc224cfcb538c4fLinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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).

Text from CVE List

Affected versions 8

  • Linuxaffected: 998e447f443f138c90faa6ff3845082af419070e before 8a36598050cd1e5abb1d5ed42cc224cfcb538c4fCVE List
  • Linuxaffected: 998e447f443f138c90faa6ff3845082af419070e before edcb84ee607a9ddfc6f2771a7f399115f0b0f19dCVE List
  • Linuxaffected: 998e447f443f138c90faa6ff3845082af419070e before f2bbb36426581045a8bf7793da5419b9375e4348CVE List
  • Linuxaffected: 6.15CVE List
  • Linuxunaffected: all versions before 6.15CVE List
  • Linuxunaffected: 6.18.55 through 6.18.*CVE List
  • Linuxunaffected: 7.2.9 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 3