| 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-2024-42320: s390/dasd: fix error checks in dasd_copy_pair_store() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| s390/dasd: fix error checks in dasd_copy_pair_store() |
| |
| dasd_add_busid() can return an error via ERR_PTR() if an allocation |
| fails. However, two callsites in dasd_copy_pair_store() do not check |
| the result, potentially resulting in a NULL pointer dereference. Fix |
| this by checking the result with IS_ERR() and returning the error up |
| the stack. |
| |
| The Linux kernel CVE team has assigned CVE-2024-42320 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.1 with commit a91ff09d39f9b6545254839ac91f1ff7bd21d39e and fixed in 6.1.103 with commit cc8b7284d5076722e0b8062373b68d8e47c3bace |
| Issue introduced in 6.1 with commit a91ff09d39f9b6545254839ac91f1ff7bd21d39e and fixed in 6.6.44 with commit e511167e65d332d07b3c7a3d5a741ee9c19a8c27 |
| Issue introduced in 6.1 with commit a91ff09d39f9b6545254839ac91f1ff7bd21d39e and fixed in 6.10.3 with commit 68d4c3722290ad300c295fb3435e835d200d5cb2 |
| Issue introduced in 6.1 with commit a91ff09d39f9b6545254839ac91f1ff7bd21d39e and fixed in 6.11 with commit 8e64d2356cbc800b4cd0e3e614797f76bcf0cdb8 |
| Issue introduced in 5.15.153 with commit 932600a295cc299d470ca7f5d6491bd0dfc99ea7 |
| |
| 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-2024-42320 |
| 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/s390/block/dasd_devmap.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/cc8b7284d5076722e0b8062373b68d8e47c3bace |
| https://git.kernel.org/stable/c/e511167e65d332d07b3c7a3d5a741ee9c19a8c27 |
| https://git.kernel.org/stable/c/68d4c3722290ad300c295fb3435e835d200d5cb2 |
| https://git.kernel.org/stable/c/8e64d2356cbc800b4cd0e3e614797f76bcf0cdb8 |
