CVE-2022-49729: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred Similar to the handling of play_deferred in commit 19cfe912c37b ("Bluetooth: btusb: Fix memory leak in play_deferred"), we thought a patch might be needed here as well. Currently usb_submit_urb is called directly to submit deferred tx urbs after unanchor them. So the usb_giveback_urb_bh would failed to unref it in usb_unanchor_urb and cause memory leak. Put those urbs in tx_anchor to avoid the leak, and also fix the error handling.

Affected products

• Linux Linux Kernel: before 4.9.320 (fixed in 4.9.320); from 4.10, before 4.14.285 (fixed in 4.14.285); from 4.15, before 4.19.249 (fixed in 4.19.249); from 4.20, before 5.4.200 (fixed in 5.4.200); from 5.5, before 5.10.124 (fixed in 5.10.124); from 5.11, before 5.15.49 (fixed in 5.15.49); …

Published 2025-02-26. Last modified 2026-06-17.