CVE-2022-49729

low-risk
Published 2025-02-26

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.

Do I need to act?

-
0.04% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (2)

Affected Vendors

Linux

References (8)

Patch https://git.kernel.org/stable/c/0eeec1a8b0cd38c47edeb042980a6aeacecf35ed
Patch https://git.kernel.org/stable/c/1eb0afecfb9cd0f38424b82bd9aaa542310934ee
Patch https://git.kernel.org/stable/c/3e7c7df6991ac349f2fa8540047757df666e610f
Patch https://git.kernel.org/stable/c/3eadc560c1919b8193d17334145dad9a917960e4
Patch https://git.kernel.org/stable/c/6616872cfe7f0474a22dd1f12699f95bcf81a54d
Patch https://git.kernel.org/stable/c/6b4d8b44e7163a77fe942f5b80e1651c1b78c537
Patch https://git.kernel.org/stable/c/8a4d480702b71184fabcf379b80bf7539716752e
Patch https://git.kernel.org/stable/c/f21f908347712b8288ffe83b531b5e977042b29c
25
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 7/34 · Low