| 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-2024-35805: dm snapshot: fix lockup in dm_exception_table_exit |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| dm snapshot: fix lockup in dm_exception_table_exit |
| |
| There was reported lockup when we exit a snapshot with many exceptions. |
| Fix this by adding "cond_resched" to the loop that frees the exceptions. |
| |
| The Linux kernel CVE team has assigned CVE-2024-35805 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.4.274 with commit e7d4cff57c3c43fdd72342c78d4138f509c7416e |
| Fixed in 5.10.215 with commit 9759ff196e7d248bcf8386a7451d6ff8537a7d9c |
| Fixed in 5.15.154 with commit 116562e804ffc9dc600adab6326dde31d72262c7 |
| Fixed in 6.1.84 with commit 3d47eb405781cc5127deca9a14e24b27696087a1 |
| Fixed in 6.6.24 with commit e50f83061ac250f90710757a3e51b70a200835e2 |
| Fixed in 6.7.12 with commit fa5c055800a7fd49a36bbb52593aca4ea986a366 |
| Fixed in 6.8.3 with commit 5f4ad4d0b0943296287313db60b3f84df4aad683 |
| Fixed in 6.9 with commit 6e7132ed3c07bd8a6ce3db4bb307ef2852b322dc |
| |
| 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-2024-35805 |
| 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/md/dm-snap.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/e7d4cff57c3c43fdd72342c78d4138f509c7416e |
| https://git.kernel.org/stable/c/9759ff196e7d248bcf8386a7451d6ff8537a7d9c |
| https://git.kernel.org/stable/c/116562e804ffc9dc600adab6326dde31d72262c7 |
| https://git.kernel.org/stable/c/3d47eb405781cc5127deca9a14e24b27696087a1 |
| https://git.kernel.org/stable/c/e50f83061ac250f90710757a3e51b70a200835e2 |
| https://git.kernel.org/stable/c/fa5c055800a7fd49a36bbb52593aca4ea986a366 |
| https://git.kernel.org/stable/c/5f4ad4d0b0943296287313db60b3f84df4aad683 |
| https://git.kernel.org/stable/c/6e7132ed3c07bd8a6ce3db4bb307ef2852b322dc |
