CVE-2025-38604

MEDIUM EPSS 4.5%
Published Aug 19, 202510mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 19, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: rtl818x: Kill URBs before clearing tx status queue In rtl8187_stop() move the call of usb_kill_anchored_urbs() before clearing b_tx_status.queue. This change prevents callbacks from using already freed skb due to anchor was not killed before freeing such skb. BUG: kernel NULL pointer dereference, address: 0000000000000080 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 7 UID: 0 PID: 0 Comm: swapper/7 Not tainted 6.15.0 #8 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 RIP: 0010:ieee80211_tx_status_irqsafe+0x21/0xc0 [mac80211] Call Trace: <IRQ> rtl8187_tx_cb+0x116/0x150 [rtl8187] __usb_hcd_giveback_urb+0x9d/0x120 usb_giveback_urb_bh+0xbb/0x140 process_one_work+0x19b/0x3c0 bh_worker+0x1a7/0x210 tasklet_action+0x10/0x30 handle_softirqs+0xf0/0x340 __irq_exit_rcu+0xcd/0xf0 common_interrupt+0x85/0xa0 </IRQ> Tested on RTL8187BvE device. Found by Linux Verification Center (linuxtesting.org) with SVACE.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥2.6.29  –  <5.4.297
linuxlinux_kernel*≥5.5  –  <5.10.241
linuxlinux_kernel*≥5.11  –  <5.15.190
linuxlinux_kernel*≥5.16  –  <6.1.148
linuxlinux_kernel*≥6.2  –  <6.6.102
linuxlinux_kernel*≥6.7  –  <6.12.42
linuxlinux_kernel*≥6.13  –  <6.15.10
linuxlinux_kernel*≥6.16  –  <6.16.1
debiandebian_linux11.0any

References 11

  • git.kernel.org https://git.kernel.org/stable/c/14ca6952691fa8cc91e7644512e6ff24a595283f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/16d8fd74dbfca0ea58645cd2fca13be10cae3cdd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7858a95566f4ebf59524666683d2dcdba3fca968
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/789415771422f4fb9f444044f86ecfaec55df1bd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/81cfe34d0630de4e23ae804dcc08fb6f861dc37d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c767727f331fb9455b0f81daad832b5925688cb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c51a45ad9070a6d296174fcbe5c466352836c12b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c73c773b09e313278f9b960303a2809b8440bac6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e64732ebff9e24258e7326f07adbe2f2b990daf8
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/14ca6952691fa8cc91e7644512e6ff24a595283f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/16d8fd74dbfca0ea58645cd2fca13be10cae3cdd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7858a95566f4ebf59524666683d2dcdba3fca968
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/789415771422f4fb9f444044f86ecfaec55df1bd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/81cfe34d0630de4e23ae804dcc08fb6f861dc37d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c767727f331fb9455b0f81daad832b5925688cb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c51a45ad9070a6d296174fcbe5c466352836c12b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c73c773b09e313278f9b960303a2809b8440bac6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e64732ebff9e24258e7326f07adbe2f2b990daf8
    Patch