CVE-2025-38604wifi: rtl818x: Kill URBs before clearing tx status queue
- 7.8HighCVSS base score
- 0.19%Exploitation in 30 daysEPSS · top 91% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 4 months later
· 4 months later
Published
- 12 months later
· 12 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.19% · top 91% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected c1db52b9d27ee6e15a7136e67e4a21dc916cd07f – < e64732ebff9e24258e7326f07adbe2f2b990daf8
- affected c1db52b9d27ee6e15a7136e67e4a21dc916cd07f – < 789415771422f4fb9f444044f86ecfaec55df1bd
- affected c1db52b9d27ee6e15a7136e67e4a21dc916cd07f – < c73c773b09e313278f9b960303a2809b8440bac6
- affected c1db52b9d27ee6e15a7136e67e4a21dc916cd07f – < 8c767727f331fb9455b0f81daad832b5925688cb
- affected c1db52b9d27ee6e15a7136e67e4a21dc916cd07f – < 14ca6952691fa8cc91e7644512e6ff24a595283f
- affected c1db52b9d27ee6e15a7136e67e4a21dc916cd07f – < 7858a95566f4ebf59524666683d2dcdba3fca968
- affected c1db52b9d27ee6e15a7136e67e4a21dc916cd07f – < c51a45ad9070a6d296174fcbe5c466352836c12b
- affected c1db52b9d27ee6e15a7136e67e4a21dc916cd07f – < 81cfe34d0630de4e23ae804dcc08fb6f861dc37d
- affected c1db52b9d27ee6e15a7136e67e4a21dc916cd07f – < 16d8fd74dbfca0ea58645cd2fca13be10cae3cdd
- affected 2.6.29
- unaffected < 2.6.29
- unaffected 5.4.297 – ≤ 5.4.*
- unaffected 5.10.241 – ≤ 5.10.*
- unaffected 5.15.190 – ≤ 5.15.*
- unaffected 6.1.148 – ≤ 6.1.*
- unaffected 6.6.102 – ≤ 6.6.*
- unaffected 6.12.42 – ≤ 6.12.*
- unaffected 6.15.10 – ≤ 6.15.*
- unaffected 6.16.1 – ≤ 6.16.*
- unaffected 6.17 – ≤ *
References
References11
- https://git.kernel.org/stable/c/e64732ebff9e24258e7326f07adbe2f2b990daf8 (opens in a new tab)
- https://git.kernel.org/stable/c/789415771422f4fb9f444044f86ecfaec55df1bd (opens in a new tab)
- https://git.kernel.org/stable/c/c73c773b09e313278f9b960303a2809b8440bac6 (opens in a new tab)
- https://git.kernel.org/stable/c/8c767727f331fb9455b0f81daad832b5925688cb (opens in a new tab)
- https://git.kernel.org/stable/c/14ca6952691fa8cc91e7644512e6ff24a595283f (opens in a new tab)
- https://git.kernel.org/stable/c/7858a95566f4ebf59524666683d2dcdba3fca968 (opens in a new tab)
- https://git.kernel.org/stable/c/c51a45ad9070a6d296174fcbe5c466352836c12b (opens in a new tab)
- https://git.kernel.org/stable/c/81cfe34d0630de4e23ae804dcc08fb6f861dc37d (opens in a new tab)
- https://git.kernel.org/stable/c/16d8fd74dbfca0ea58645cd2fca13be10cae3cdd (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-26092 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-38604)Record last updated .