CVE-2025-38604 (GCVE-0-2025-38604)

Vulnerability from cvelistv5 – Published: 2025-08-19 17:03 – Updated: 2025-11-03 17:40
VLAI?
Title
wifi: rtl818x: Kill URBs before clearing tx status queue
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c1db52b9d27ee6e15a7136e67e4a21dc916cd07f , < e64732ebff9e24258e7326f07adbe2f2b990daf8 (git)
Affected: c1db52b9d27ee6e15a7136e67e4a21dc916cd07f , < 789415771422f4fb9f444044f86ecfaec55df1bd (git)
Affected: c1db52b9d27ee6e15a7136e67e4a21dc916cd07f , < c73c773b09e313278f9b960303a2809b8440bac6 (git)
Affected: c1db52b9d27ee6e15a7136e67e4a21dc916cd07f , < 8c767727f331fb9455b0f81daad832b5925688cb (git)
Affected: c1db52b9d27ee6e15a7136e67e4a21dc916cd07f , < 14ca6952691fa8cc91e7644512e6ff24a595283f (git)
Affected: c1db52b9d27ee6e15a7136e67e4a21dc916cd07f , < 7858a95566f4ebf59524666683d2dcdba3fca968 (git)
Affected: c1db52b9d27ee6e15a7136e67e4a21dc916cd07f , < c51a45ad9070a6d296174fcbe5c466352836c12b (git)
Affected: c1db52b9d27ee6e15a7136e67e4a21dc916cd07f , < 81cfe34d0630de4e23ae804dcc08fb6f861dc37d (git)
Affected: c1db52b9d27ee6e15a7136e67e4a21dc916cd07f , < 16d8fd74dbfca0ea58645cd2fca13be10cae3cdd (git)
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    Linux Linux Affected: 2.6.29
Unaffected: 0 , < 2.6.29 (semver)
Unaffected: 5.4.297 , ≤ 5.4.* (semver)
Unaffected: 5.10.241 , ≤ 5.10.* (semver)
Unaffected: 5.15.190 , ≤ 5.15.* (semver)
Unaffected: 6.1.148 , ≤ 6.1.* (semver)
Unaffected: 6.6.102 , ≤ 6.6.* (semver)
Unaffected: 6.12.42 , ≤ 6.12.* (semver)
Unaffected: 6.15.10 , ≤ 6.15.* (semver)
Unaffected: 6.16.1 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtl818x: Kill URBs before clearing tx status queue\n\nIn rtl8187_stop() move the call of usb_kill_anchored_urbs() before clearing\nb_tx_status.queue. This change prevents callbacks from using already freed\nskb due to anchor was not killed before freeing such skb.\n\n BUG: kernel NULL pointer dereference, address: 0000000000000080\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: Oops: 0000 [#1] SMP NOPTI\n CPU: 7 UID: 0 PID: 0 Comm: swapper/7 Not tainted 6.15.0 #8 PREEMPT(voluntary)\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015\n RIP: 0010:ieee80211_tx_status_irqsafe+0x21/0xc0 [mac80211]\n Call Trace:\n  \u003cIRQ\u003e\n  rtl8187_tx_cb+0x116/0x150 [rtl8187]\n  __usb_hcd_giveback_urb+0x9d/0x120\n  usb_giveback_urb_bh+0xbb/0x140\n  process_one_work+0x19b/0x3c0\n  bh_worker+0x1a7/0x210\n  tasklet_action+0x10/0x30\n  handle_softirqs+0xf0/0x340\n  __irq_exit_rcu+0xcd/0xf0\n  common_interrupt+0x85/0xa0\n  \u003c/IRQ\u003e\n\nTested on RTL8187BvE device.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
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        {
          "url": "https://git.kernel.org/stable/c/16d8fd74dbfca0ea58645cd2fca13be10cae3cdd"
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      "title": "wifi: rtl818x: Kill URBs before clearing tx status queue",
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        "engine": "bippy-1.2.0"
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    "cveId": "CVE-2025-38604",
    "datePublished": "2025-08-19T17:03:43.358Z",
    "dateReserved": "2025-04-16T04:51:24.028Z",
    "dateUpdated": "2025-11-03T17:40:19.561Z",
    "state": "PUBLISHED"
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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