| 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-2022-48946: udf: Fix preallocation discarding at indirect extent boundary |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| udf: Fix preallocation discarding at indirect extent boundary |
| |
| When preallocation extent is the first one in the extent block, the |
| code would corrupt extent tree header instead. Fix the problem and use |
| udf_delete_aext() for deleting extent to avoid some code duplication. |
| |
| The Linux kernel CVE team has assigned CVE-2022-48946 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.9.337 with commit c8b6fa4511a7900db9fb0353b630d4d2ed1ba99c |
| Fixed in 4.14.303 with commit 7665857f88557c372da35534165721156756f77f |
| Fixed in 4.19.270 with commit 72f651c96c8aadf087fd782d551bf7db648a8c2e |
| Fixed in 5.4.229 with commit 4d835efd561dfb9bf5409f11f4ecd428d5d29226 |
| Fixed in 5.10.161 with commit 1a075f4a549481ce6e8518d8379f193ccec6b746 |
| Fixed in 5.15.85 with commit 63dbbd8f1499b0a161e701a04aa50148d60bd1f7 |
| Fixed in 6.0.15 with commit ae56d9a017724f130cf1a263dd82a78d2a6e3852 |
| Fixed in 6.1.1 with commit 12a88f572d6d94b5c0b72e2d1782cc2e96ac06cf |
| Fixed in 6.2 with commit cfe4c1b25dd6d2f056afc00b7c98bcb3dd0b1fc3 |
| |
| 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-2022-48946 |
| 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: |
| fs/udf/truncate.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/c8b6fa4511a7900db9fb0353b630d4d2ed1ba99c |
| https://git.kernel.org/stable/c/7665857f88557c372da35534165721156756f77f |
| https://git.kernel.org/stable/c/72f651c96c8aadf087fd782d551bf7db648a8c2e |
| https://git.kernel.org/stable/c/4d835efd561dfb9bf5409f11f4ecd428d5d29226 |
| https://git.kernel.org/stable/c/1a075f4a549481ce6e8518d8379f193ccec6b746 |
| https://git.kernel.org/stable/c/63dbbd8f1499b0a161e701a04aa50148d60bd1f7 |
| https://git.kernel.org/stable/c/ae56d9a017724f130cf1a263dd82a78d2a6e3852 |
| https://git.kernel.org/stable/c/12a88f572d6d94b5c0b72e2d1782cc2e96ac06cf |
| https://git.kernel.org/stable/c/cfe4c1b25dd6d2f056afc00b7c98bcb3dd0b1fc3 |
