| 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-2022-49024: can: m_can: pci: add missing m_can_class_free_dev() in probe/remove methods |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| can: m_can: pci: add missing m_can_class_free_dev() in probe/remove methods |
| |
| In m_can_pci_remove() and error handling path of m_can_pci_probe(), |
| m_can_class_free_dev() should be called to free resource allocated by |
| m_can_class_allocate_dev(), otherwise there will be memleak. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49024 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.11 with commit cab7ffc0324f053c8fb56c821cdd63dc0383270d and fixed in 5.15.82 with commit ea8dc27bb044e19868155e500ce397007be98656 |
| Issue introduced in 5.11 with commit cab7ffc0324f053c8fb56c821cdd63dc0383270d and fixed in 6.0.12 with commit 0bbb88651ef6b7fbb1bf75ec7ba69add632e834b |
| Issue introduced in 5.11 with commit cab7ffc0324f053c8fb56c821cdd63dc0383270d and fixed in 6.1 with commit 1eca1d4cc21b6d0fc5f9a390339804c0afce9439 |
| |
| 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-2022-49024 |
| 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/net/can/m_can/m_can_pci.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/ea8dc27bb044e19868155e500ce397007be98656 |
| https://git.kernel.org/stable/c/0bbb88651ef6b7fbb1bf75ec7ba69add632e834b |
| https://git.kernel.org/stable/c/1eca1d4cc21b6d0fc5f9a390339804c0afce9439 |
