| 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-2024-43857: f2fs: fix null reference error when checking end of zone |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| f2fs: fix null reference error when checking end of zone |
| |
| This patch fixes a potentially null pointer being accessed by |
| is_end_zone_blkaddr() that checks the last block of a zone |
| when f2fs is mounted as a single device. |
| |
| The Linux kernel CVE team has assigned CVE-2024-43857 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.5 with commit e067dc3c6b9c419bac43c6a0be2d85f44681f863 and fixed in 6.6.64 with commit b98777309756ebe15cc9ad4e8ab64bbfaf878a3f |
| Issue introduced in 6.5 with commit e067dc3c6b9c419bac43c6a0be2d85f44681f863 and fixed in 6.10.3 with commit 381cbe85592c78fbaeb3e770e3e9f3bfa3e67efb |
| Issue introduced in 6.5 with commit e067dc3c6b9c419bac43c6a0be2d85f44681f863 and fixed in 6.11 with commit c82bc1ab2a8a5e73d9728e80c4c2ed87e8921a38 |
| |
| 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-2024-43857 |
| 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/f2fs/data.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/b98777309756ebe15cc9ad4e8ab64bbfaf878a3f |
| https://git.kernel.org/stable/c/381cbe85592c78fbaeb3e770e3e9f3bfa3e67efb |
| https://git.kernel.org/stable/c/c82bc1ab2a8a5e73d9728e80c4c2ed87e8921a38 |
