wifi: libertas: don't kill URBs in interrupt context
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- Fix
- Fixed in 6.18.33, 5.11, 5.16, 6.2, 6.7, and 2 more
- 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: wifi: libertas: don't kill URBs in interrupt context Serialization for the TX path was enforced by calling usb_kill_urb()/usb_kill_anchored_urbs(), to prevent transmission before a previous URB was completed. usb_tx_block() can be called from interrupt context (e.g. in the HCD giveback path), so we can't always use it to kill in-flight URBs. Prevent sleeping during interrupt context by checking the tx_submitted anchor for existing URBs. We now return -EBUSY, to indicate there's a pending request.
Timeline
- CVE published
Affected versions
- Linux Linux
From 6.18.16 · fixed in 6.18.33; From 5.10.252 · fixed in 5.11; From 5.15.202 · fixed in 5.16; From 6.1.165 · fixed in 6.2; From 6.6.128 · fixed in 6.7; From 6.12.75 · fixed in 6.13; From 6.19.6 · fixed in 6.20
- Linux Linux
7.0