| From bippy-7c5fe7eed585 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-2024-34027: f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock |
| |
| It needs to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock |
| to avoid racing with checkpoint, otherwise, filesystem metadata including |
| blkaddr in dnode, inode fields and .total_valid_block_count may be |
| corrupted after SPO case. |
| |
| The Linux kernel CVE team has assigned CVE-2024-34027 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.8 with commit ef8d563f184e1112651f2cbde383d43e599334e8 and fixed in 5.10.219 with commit a6e1f7744e9b84f86a629a76024bba8468aa153b |
| Issue introduced in 5.8 with commit ef8d563f184e1112651f2cbde383d43e599334e8 and fixed in 5.15.161 with commit b5bac43875aa27ec032dbbb86173baae6dce6182 |
| Issue introduced in 5.8 with commit ef8d563f184e1112651f2cbde383d43e599334e8 and fixed in 6.1.93 with commit 5d47d63883735718825ca2efc4fca6915469774f |
| Issue introduced in 5.8 with commit ef8d563f184e1112651f2cbde383d43e599334e8 and fixed in 6.6.33 with commit 329edb7c9e3b6ca27e6ca67ab1cdda1740fb3a2b |
| Issue introduced in 5.8 with commit ef8d563f184e1112651f2cbde383d43e599334e8 and fixed in 6.9.4 with commit 69136304fd144144a4828c7b7b149d0f80321ba4 |
| Issue introduced in 5.8 with commit ef8d563f184e1112651f2cbde383d43e599334e8 and fixed in 6.10 with commit 0a4ed2d97cb6d044196cc3e726b6699222b41019 |
| |
| 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-2024-34027 |
| 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/file.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/a6e1f7744e9b84f86a629a76024bba8468aa153b |
| https://git.kernel.org/stable/c/b5bac43875aa27ec032dbbb86173baae6dce6182 |
| https://git.kernel.org/stable/c/5d47d63883735718825ca2efc4fca6915469774f |
| https://git.kernel.org/stable/c/329edb7c9e3b6ca27e6ca67ab1cdda1740fb3a2b |
| https://git.kernel.org/stable/c/69136304fd144144a4828c7b7b149d0f80321ba4 |
| https://git.kernel.org/stable/c/0a4ed2d97cb6d044196cc3e726b6699222b41019 |
