| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2022-49729: nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred |
| |
| 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. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49729 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.9.320 with commit 1eb0afecfb9cd0f38424b82bd9aaa542310934ee |
| Fixed in 4.14.285 with commit f21f908347712b8288ffe83b531b5e977042b29c |
| Fixed in 4.19.249 with commit 3e7c7df6991ac349f2fa8540047757df666e610f |
| Fixed in 5.4.200 with commit 6b4d8b44e7163a77fe942f5b80e1651c1b78c537 |
| Fixed in 5.10.124 with commit 0eeec1a8b0cd38c47edeb042980a6aeacecf35ed |
| Fixed in 5.15.49 with commit 6616872cfe7f0474a22dd1f12699f95bcf81a54d |
| Fixed in 5.18.6 with commit 3eadc560c1919b8193d17334145dad9a917960e4 |
| Fixed in 5.19 with commit 8a4d480702b71184fabcf379b80bf7539716752e |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2022-49729 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/nfc/nfcmrvl/usb.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/1eb0afecfb9cd0f38424b82bd9aaa542310934ee |
| https://git.kernel.org/stable/c/f21f908347712b8288ffe83b531b5e977042b29c |
| https://git.kernel.org/stable/c/3e7c7df6991ac349f2fa8540047757df666e610f |
| https://git.kernel.org/stable/c/6b4d8b44e7163a77fe942f5b80e1651c1b78c537 |
| https://git.kernel.org/stable/c/0eeec1a8b0cd38c47edeb042980a6aeacecf35ed |
| https://git.kernel.org/stable/c/6616872cfe7f0474a22dd1f12699f95bcf81a54d |
| https://git.kernel.org/stable/c/3eadc560c1919b8193d17334145dad9a917960e4 |
| https://git.kernel.org/stable/c/8a4d480702b71184fabcf379b80bf7539716752e |
