CVE-2026-98171 Affecting kernel-uek-modules-usb package, versions <0:6.12.0-208.112.5.el10uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.54% (46th percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELUEKMODULESUSB-22167141
  • published3 Nov 2026
  • disclosed6 Oct 2026

Introduced: 6 Oct 2026

CVE-2026-98171  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-uek-modules-usb to version 0:6.12.0-208.112.5.el10uek or higher.
This issue was patched in ELSA-2026-500572.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-modules-usb package and not the kernel-uek-modules-usb package as distributed by Oracle. See How to fix? for Oracle:10 relevant fixed versions and status.

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

smb: client: fix next_buffer UAF and NextCommand bounds in compound PDUs

Fix several related bounds checking and pointer lifecycle issues in receive_encrypted_standard()'s handling of compound encrypted frames:

  • Clear next_buffer after assigning it to server->bigbuf. A stale next_buffer pointer can lead to a use-after-free on subsequent error paths.
  • Update pdu_length to the decrypted plaintext size (buf_size). Using the pre-decryption length allows NextCommand to point into stale ciphertext residue.
  • Reject next_cmd values smaller than MID_HEADER_SIZE(server).
  • Fix an integer overflow in the upper bound check by verifying pdu_length - next_cmd < MID_HEADER_SIZE(server), ensuring the trailing slice is large enough for a header.

CVSS Base Scores

version 3.1