CVE-2022-49729 Information

Mar 01, 2025 cve

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.

Reference

https://git.kernel.org/stable/c/0eeec1a8b0cd38c47edeb042980a6aeacecf35ed https://git.kernel.org/stable/c/1eb0afecfb9cd0f38424b82bd9aaa542310934ee https://git.kernel.org/stable/c/3e7c7df6991ac349f2fa8540047757df666e610f https://git.kernel.org/stable/c/3eadc560c1919b8193d17334145dad9a917960e4 https://git.kernel.org/stable/c/6616872cfe7f0474a22dd1f12699f95bcf81a54d https://git.kernel.org/stable/c/6b4d8b44e7163a77fe942f5b80e1651c1b78c537 https://git.kernel.org/stable/c/8a4d480702b71184fabcf379b80bf7539716752e https://git.kernel.org/stable/c/f21f908347712b8288ffe83b531b5e977042b29c

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