| 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-2021-47443: NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() |
| |
| 'params' is allocated in digital_tg_listen_mdaa(), but not free when |
| digital_send_cmd() failed, which will cause memory leak. Fix it by |
| freeing 'params' if digital_send_cmd() return failed. |
| |
| The Linux kernel CVE team has assigned CVE-2021-47443 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.13 with commit 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 and fixed in 4.4.290 with commit 429054ec51e648d241a7e0b465cf44f6633334c5 |
| Issue introduced in 3.13 with commit 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 and fixed in 4.9.288 with commit a67d47e32c91e2b10402cb8c081774cbf08edb2e |
| Issue introduced in 3.13 with commit 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 and fixed in 4.14.252 with commit b7b023e6ff567e991c31cd425b0e1d16779c938b |
| Issue introduced in 3.13 with commit 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 and fixed in 4.19.213 with commit 9881b0c860649f27ef2565deef011e516390f416 |
| Issue introduced in 3.13 with commit 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 and fixed in 5.4.155 with commit 7ab488d7228a9dceb2456867f1f0919decf6efed |
| Issue introduced in 3.13 with commit 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 and fixed in 5.10.75 with commit 3f2960b39f22e26cf8addae93c3f5884d1c183c9 |
| Issue introduced in 3.13 with commit 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 and fixed in 5.14.14 with commit 564249219e5b5673a8416b5181875d828c3f1e8c |
| Issue introduced in 3.13 with commit 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 and fixed in 5.15 with commit 58e7dcc9ca29c14e44267a4d0ea61e3229124907 |
| |
| 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-2021-47443 |
| 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: |
| net/nfc/digital_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/429054ec51e648d241a7e0b465cf44f6633334c5 |
| https://git.kernel.org/stable/c/a67d47e32c91e2b10402cb8c081774cbf08edb2e |
| https://git.kernel.org/stable/c/b7b023e6ff567e991c31cd425b0e1d16779c938b |
| https://git.kernel.org/stable/c/9881b0c860649f27ef2565deef011e516390f416 |
| https://git.kernel.org/stable/c/7ab488d7228a9dceb2456867f1f0919decf6efed |
| https://git.kernel.org/stable/c/3f2960b39f22e26cf8addae93c3f5884d1c183c9 |
| https://git.kernel.org/stable/c/564249219e5b5673a8416b5181875d828c3f1e8c |
| https://git.kernel.org/stable/c/58e7dcc9ca29c14e44267a4d0ea61e3229124907 |
