| 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-2022-49487: mtd: rawnand: intel: fix possible null-ptr-deref in ebu_nand_probe() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| mtd: rawnand: intel: fix possible null-ptr-deref in ebu_nand_probe() |
| |
| It will cause null-ptr-deref when using 'res', if platform_get_resource() |
| returns NULL, so move using 'res' after devm_ioremap_resource() that |
| will check it to avoid null-ptr-deref. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49487 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.11 with commit 0b1039f016e8a37c779a4aee362cb2100ebb1cfd and fixed in 5.15.46 with commit e5b1e419cdb6dd8709eb05ed34039a3ded8e6003 |
| Issue introduced in 5.11 with commit 0b1039f016e8a37c779a4aee362cb2100ebb1cfd and fixed in 5.17.14 with commit daa5166450b447415aeeaac0199e445bae7bd0f2 |
| Issue introduced in 5.11 with commit 0b1039f016e8a37c779a4aee362cb2100ebb1cfd and fixed in 5.18.3 with commit f8e262eb7575a4a2412f30f7a1b293875aceba80 |
| Issue introduced in 5.11 with commit 0b1039f016e8a37c779a4aee362cb2100ebb1cfd and fixed in 5.19 with commit ddf66aefd685fd46500b9917333e1b1e118276dc |
| |
| 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-2022-49487 |
| 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/mtd/nand/raw/intel-nand-controller.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/e5b1e419cdb6dd8709eb05ed34039a3ded8e6003 |
| https://git.kernel.org/stable/c/daa5166450b447415aeeaac0199e445bae7bd0f2 |
| https://git.kernel.org/stable/c/f8e262eb7575a4a2412f30f7a1b293875aceba80 |
| https://git.kernel.org/stable/c/ddf66aefd685fd46500b9917333e1b1e118276dc |
