CVE-2022-49729
Description
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.
How to fix
- linux linux_kernel4.9.320, 4.14.285, 4.19.249, 5.4.200, 5.10.124, 5.15.49, 5.18.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 4.9.320, 4.10 ≤ v < 4.14.285, 4.15 ≤ v < 4.19.249, 4.20 ≤ v < 5.4.200, 5.5 ≤ v < 5.10.124, 5.11 ≤ v < 5.15.49, 5.16 ≤ v < 5.18.6, 5.19 | 4.9.320, 4.14.285, 4.19.249, 5.4.200, 5.10.124, 5.15.49, 5.18.6 |
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