CVE-2026-43180 (GCVE-0-2026-43180)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-11 22:19
VLAI
Title
net: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode
Summary
In the Linux kernel, the following vulnerability has been resolved: net: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode kaweth_set_rx_mode(), the ndo_set_rx_mode callback, calls netif_stop_queue() and netif_wake_queue(). These are TX queue flow control functions unrelated to RX multicast configuration. The premature netif_wake_queue() can re-enable TX while tx_urb is still in-flight, leading to a double usb_submit_urb() on the same URB: kaweth_start_xmit() { netif_stop_queue(); usb_submit_urb(kaweth->tx_urb); } kaweth_set_rx_mode() { netif_stop_queue(); netif_wake_queue(); // wakes TX queue before URB is done } kaweth_start_xmit() { netif_stop_queue(); usb_submit_urb(kaweth->tx_urb); // URB submitted while active } This triggers the WARN in usb_submit_urb(): "URB submitted while active" This is a similar class of bug fixed in rtl8150 by - commit 958baf5eaee3 ("net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast"). Also kaweth_set_rx_mode() is already functionally broken, the real set_rx_mode action is performed by kaweth_async_set_rx_mode(), which in turn is not a no-op only at ndo_open() time.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 443a830b1dc4f85c7560da59d4494b629feee215 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 586318c2730433184c6f1d21183e346ddf25e81d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a2cd4b4db315a845a5603d08c9d03b11ddfc799d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ef9b10a020503888eb6c8ed85a3d901a624ede4c (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9c79b839a63980c7da7ec5db895198045e154112 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fc393af769af845d9985e2845e49553d8f015a64 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8367c0e90126426e60581e4c07e1ec4411a0f843 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 64868f5ecadeb359a49bc4485bfa7c497047f13a (git)
Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.10.252 , ≤ 5.10.* (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode\n\nkaweth_set_rx_mode(), the ndo_set_rx_mode callback, calls\nnetif_stop_queue() and netif_wake_queue(). These are TX queue flow\ncontrol functions unrelated to RX multicast configuration.\n\nThe premature netif_wake_queue() can re-enable TX while tx_urb is still\nin-flight, leading to a double usb_submit_urb() on the same URB:\n\nkaweth_start_xmit() {\n    netif_stop_queue();\n    usb_submit_urb(kaweth-\u003etx_urb);\n}\n\nkaweth_set_rx_mode() {\n    netif_stop_queue();\n    netif_wake_queue();             // wakes TX queue before URB is done\n}\n\nkaweth_start_xmit() {\n    netif_stop_queue();\n    usb_submit_urb(kaweth-\u003etx_urb); // URB submitted while active\n}\n\nThis triggers the WARN in usb_submit_urb():\n\n  \"URB submitted while active\"\n\nThis is a similar class of bug fixed in rtl8150 by\n\n- commit 958baf5eaee3 (\"net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast\").\n\nAlso kaweth_set_rx_mode() is already functionally broken, the\nreal set_rx_mode action is performed by kaweth_async_set_rx_mode(),\nwhich in turn is not a no-op only at ndo_open() time."
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These are TX queue flow\\ncontrol functions unrelated to RX multicast configuration.\\n\\nThe premature netif_wake_queue() can re-enable TX while tx_urb is still\\nin-flight, leading to a double usb_submit_urb() on the same URB:\\n\\nkaweth_start_xmit() {\\n    netif_stop_queue();\\n    usb_submit_urb(kaweth-\u003etx_urb);\\n}\\n\\nkaweth_set_rx_mode() {\\n    netif_stop_queue();\\n    netif_wake_queue();             // wakes TX queue before URB is done\\n}\\n\\nkaweth_start_xmit() {\\n    netif_stop_queue();\\n    usb_submit_urb(kaweth-\u003etx_urb); // URB submitted while active\\n}\\n\\nThis triggers the WARN in usb_submit_urb():\\n\\n  \\\"URB submitted while active\\\"\\n\\nThis is a similar class of bug fixed in rtl8150 by\\n\\n- commit 958baf5eaee3 (\\\"net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast\\\").\\n\\nAlso kaweth_set_rx_mode() is already functionally broken, the\\nreal set_rx_mode action is performed by kaweth_async_set_rx_mode(),\\nwhich in turn 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  }
}


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