7.8

CVE-2025-38604: debian debian_linux NULL Pointer Dereference

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2025-38604DEBIAN-CVE-2025-38604
Published 19-08-2025Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2025-38604 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.18%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 52 · Related 48
DLA-4327-1DLA-4328-1MGASA-2025-0234MGASA-2025-0235OPENSUSE-SU-2025:20081-1SUSE-SU-2025:03272-1

Timeline

  1. 19-08-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

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 metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

+0.01 pp

From 0.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.18%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu147 products
  • linuxAll versions (No fix recorded) | < 5.15.0-163.173 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1097.104 | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.148-1 | < 6.12.43-1 | < 6.16.3-1
  • debian_linuxEOL11.0
Linux2 products
  • linux≥ c1db52b9d27ee6e15a7136e67e4a21dc916cd07f, < e64732ebff9e24258e7326f07adbe2f2b990daf8 | ≥ c1db52b9d27ee6e15a7136e67e4a21dc916cd07f, < 789415771422f4fb9f444044f86ecfaec55df1bd | ≥ c1db52b9d27ee6e15a7136e67e4a21dc916cd07f, < c73c773b09e313278f9b960303a2809b8440bac6 | ≥ c1db52b9d27ee6e15a7136e67e4a21dc916cd07f, < 8c767727f331fb9455b0f81daad832b5925688cb | ≥ c1db52b9d27ee6e15a7136e67e4a21dc916cd07f, < 14ca6952691fa8cc91e7644512e6ff24a595283f | ≥ c1db52b9d27ee6e15a7136e67e4a21dc916cd07f, < 7858a95566f4ebf59524666683d2dcdba3fca968 | ≥ c1db52b9d27ee6e15a7136e67e4a21dc916cd07f, < c51a45ad9070a6d296174fcbe5c466352836c12b | ≥ c1db52b9d27ee6e15a7136e67e4a21dc916cd07f, < 81cfe34d0630de4e23ae804dcc08fb6f861dc37d | ≥ c1db52b9d27ee6e15a7136e67e4a21dc916cd07f, < 16d8fd74dbfca0ea58645cd2fca13be10cae3cdd | 2.6.29
  • linux_kernel≥ 2.6.29, < 5.4.297 | ≥ 5.5, < 5.10.241 | ≥ 5.11, < 5.15.190 | ≥ 5.16, < 6.1.148 | ≥ 6.2, < 6.6.102 | ≥ 6.7, < 6.12.42 | ≥ 6.13, < 6.15.10 | ≥ 6.16, < 6.16.1

3 vendors · 151 products

References

47 links
Show all 47 references