CVE-2022-49729
nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- 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
References (8)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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