Bug 2429047 (CVE-2025-71100) - CVE-2025-71100 kernel: wifi: rtlwifi: 8192cu: fix tid out of range in rtl92cu_tx_fill_desc()
Summary: CVE-2025-71100 kernel: wifi: rtlwifi: 8192cu: fix tid out of range in rtl92cu...
Keywords:
Status: NEW
Alias: CVE-2025-71100
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-01-13 16:03 UTC by OSIDB Bzimport
Modified: 2026-01-15 03:35 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-01-13 16:03:00 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: rtlwifi: 8192cu: fix tid out of range in rtl92cu_tx_fill_desc()

TID getting from ieee80211_get_tid() might be out of range of array size
of sta_entry->tids[], so check TID is less than MAX_TID_COUNT. Othwerwise,
UBSAN warn:

 UBSAN: array-index-out-of-bounds in drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c:514:30
 index 10 is out of range for type 'rtl_tid_data [9]'
Comment 1 Jon Moroney 2026-01-15 03:31:49 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026011345-CVE-2025-71100-537f@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.