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Back to active CVEs
High · CVSS 8.8CVE-2026-90380

wifi: mt76: mt792x: fix use-after-free in mt76_rx_poll_completeCVE-2026-90380

Answer in brief

CVE-2026-90380 records a High severity (CVSS 8.8) vulnerability in wifi: mt76: mt792x: fix use-after-free in mt76_rx_poll_complete. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 17, 2026Updated Oct 19, 2026Source checked Nov 1, 2026First seen by HOL Sep 17, 2026Material review Oct 19, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=c948b5da6bbec742b433138e3e3f9537a85af2e5 <aaf414bf81ab4b680580871784b0b929818188eb || >=c948b5da6bbec742b433138e3e3f9537a85af2e5 <b250943f3f8351385a17972bda001664a5c51008 || >=c948b5da6bbec742b433138e3e3f9537a85af2e5 <217f9e7bb02558759be9d9ecfe532e9708741c50aaf414bf81ab4b680580871784b0b929818188eb, b250943f3f8351385a17972bda001664a5c51008, 217f9e7bb02558759be9d9ecfe532e9708741c50
Linux/Linuxgeneric6.7Not reported
Linux/Linuxgeneric>=c948b5da6bbec742b433138e3e3f9537a85af2e5 <aaf414bf81ab4b680580871784b0b929818188eb || >=c948b5da6bbec742b433138e3e3f9537a85af2e5 <2aa3d3b9fac9163e9226e35556607ae3f75be21e || >=c948b5da6bbec742b433138e3e3f9537a85af2e5 <b250943f3f8351385a17972bda001664a5c51008 || >=c948b5da6bbec742b433138e3e3f9537a85af2e5 <217f9e7bb02558759be9d9ecfe532e9708741c50aaf414bf81ab4b680580871784b0b929818188eb, 2aa3d3b9fac9163e9226e35556607ae3f75be21e, b250943f3f8351385a17972bda001664a5c51008, 217f9e7bb02558759be9d9ecfe532e9708741c50

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to aaf414bf81ab4b680580871784b0b929818188eb; Linux/Linux to aaf414bf81ab4b680580871784b0b929818188eb if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 17, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 19, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 17, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt792x: fix use-after-free in mt76_rx_poll_complete A use-after-free issue occurs in mt76_rx_poll_complete due to a race condition. The STA has already been removed, but the rx_status still had a pointer to the wcid in the STA. Set the links' wcid pointers to be NULL for a MLD in mt7925_sta_pre_rcu_remove() BUG: KASAN: invalid-access in mt76_rx_poll_complete+0x280/0x470 Call trace: dump_backtrace+0xec/0x128 show_stack+0x18/0x28 dump_stack_lvl+0x40/0xc8 print_report+0x1b8/0x710 kasan_report+0xe0/0x144 do_bad_area+0x120/0x260 do_tag_check_fault+0x20/0x34 do_mem_abort+0x54/0xa8 el1_abort+0x3c/0x5c el1h_64_sync_handler+0x40/0xcc el1h_64_sync+0x7c/0x80 mt76_rx_poll_complete+0x280/0x470 mt76_dma_rx_poll+0x114/0x51c mt792x_poll_rx+0x60/0xf8 napi_threaded_poll_loop+0xe0/0x450 napi_threaded_poll+0x80/0x9c kthread+0x11c/0x158 ret_from_fork+0x10/0x20

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 1, 2026
References
4 linked sources
Open source record