net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast syzbot reported WARNING in rtl8150_start_xmit/usb_submit_urb. This is the sequence of events that leads to the warning: rtl8150_start_xmit() { netif_stop_queue(); usb_submit_urb(dev->tx_urb); } rtl8150_set_multicast() { netif_stop_queue(); netif_wake_queue(); <-- wakes up TX queue before URB is done } rtl8150_start_xmit() { netif_stop_queue(); usb_submit_urb(dev->tx_urb); <-- double submission } rtl8150_set_multicast being the ndo_set_rx_mode callback should not be calling netif_stop_queue and notif_start_queue as these handle TX queue synchronization. The net core function dev_set_rx_mode handles the synchronization for rtl8150_set_multicast making it safe to remove these locks.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.12
References 8
git.kernel.org
- stable/c/cce3c0e21cdd15bcba5c35d3af1700186de8f187
- stable/c/1a08a37ac03d07a1608a1592791041cac979fbc3
- stable/c/54f8ef1a970a8376e5846ed90854decf7c00555d
- stable/c/114e05344763a102a8844efd96ec06ba99293ccd
- stable/c/6394bade9daab8e318c165fe43bba012bf13cd8e
- stable/c/6053e47bbf212b93c051beb4261d7d5a409d0ce3
- stable/c/9d72df7f5eac946f853bf49c428c4e87a17d91da
- stable/c/958baf5eaee394e5fd976979b0791a875f14a179