{"id":"DEBIAN-CVE-2022-50740","details":"In the Linux kernel, the following vulnerability has been resolved:  wifi: ath9k: hif_usb: fix memory leak of urbs in ath9k_hif_usb_dealloc_tx_urbs()  Syzkaller reports a long-known leak of urbs in ath9k_hif_usb_dealloc_tx_urbs().  The cause of the leak is that usb_get_urb() is called but usb_free_urb() (or usb_put_urb()) is not called inside usb_kill_urb() as urb-\u003edev or urb-\u003eep fields have not been initialized and usb_kill_urb() returns immediately.  The patch removes trying to kill urbs located in hif_dev-\u003etx.tx_buf because hif_dev-\u003etx.tx_buf is not supposed to contain urbs which are in pending state (the pending urbs are stored in hif_dev-\u003etx.tx_pending). The tx.tx_lock is acquired so there should not be any changes in the list.  Found by Linux Verification Center (linuxtesting.org) with Syzkaller.","modified":"2026-09-01T16:05:36.146891962Z","published":"2025-12-24T13:16:00.703Z","upstream":["CVE-2022-50740"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-50740"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.4-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50740.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.4-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50740.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.4-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50740.json"}}],"schema_version":"1.9.0"}