| From bippy-1.1.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2022-49923: nfc: nxp-nci: Fix potential memory leak in nxp_nci_send() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| nfc: nxp-nci: Fix potential memory leak in nxp_nci_send() |
| |
| nxp_nci_send() will call nxp_nci_i2c_write(), and only free skb when |
| nxp_nci_i2c_write() failed. However, even if the nxp_nci_i2c_write() |
| run succeeds, the skb will not be freed in nxp_nci_i2c_write(). As the |
| result, the skb will memleak. nxp_nci_send() should also free the skb |
| when nxp_nci_i2c_write() succeeds. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49923 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.1 with commit dece45855a8b0d1dcf48eb01d0822070ded6a4c8 and fixed in 5.10.154 with commit 9ae2c9a91ff068f4c3e392f47e8e26a1c9f85ebb |
| Issue introduced in 4.1 with commit dece45855a8b0d1dcf48eb01d0822070ded6a4c8 and fixed in 5.15.78 with commit 3cba1f061bfe23fece2841129ca2862cdec29d5c |
| Issue introduced in 4.1 with commit dece45855a8b0d1dcf48eb01d0822070ded6a4c8 and fixed in 6.0.8 with commit 3ecf0f4227029b2c42e036b10ff6e5d09e20821e |
| Issue introduced in 4.1 with commit dece45855a8b0d1dcf48eb01d0822070ded6a4c8 and fixed in 6.1 with commit 7bf1ed6aff0f70434bd0cdd45495e83f1dffb551 |
| |
| 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-2022-49923 |
| 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/nxp-nci/core.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/9ae2c9a91ff068f4c3e392f47e8e26a1c9f85ebb |
| https://git.kernel.org/stable/c/3cba1f061bfe23fece2841129ca2862cdec29d5c |
| https://git.kernel.org/stable/c/3ecf0f4227029b2c42e036b10ff6e5d09e20821e |
| https://git.kernel.org/stable/c/7bf1ed6aff0f70434bd0cdd45495e83f1dffb551 |
