| 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-2024-26811: ksmbd: validate payload size in ipc response |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ksmbd: validate payload size in ipc response |
| |
| If installing malicious ksmbd-tools, ksmbd.mountd can return invalid ipc |
| response to ksmbd kernel server. ksmbd should validate payload size of |
| ipc response from ksmbd.mountd to avoid memory overrun or |
| slab-out-of-bounds. This patch validate 3 ipc response that has payload. |
| |
| The Linux kernel CVE team has assigned CVE-2024-26811 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 5.15.157 with commit 88b7f1143b15b29cccb8392b4f38e75b7bb3e300 |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.1.85 with commit 51a6c2af9d20203ddeeaf73314ba8854b38d01bd |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.6.26 with commit a637fabac554270a851033f5ab402ecb90bc479c |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.8.5 with commit 76af689a45aa44714b46d1a7de4ffdf851ded896 |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.9 with commit a677ebd8ca2f2632ccdecbad7b87641274e15aac |
| |
| 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-2024-26811 |
| 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/smb/server/ksmbd_netlink.h |
| fs/smb/server/mgmt/share_config.c |
| fs/smb/server/transport_ipc.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/88b7f1143b15b29cccb8392b4f38e75b7bb3e300 |
| https://git.kernel.org/stable/c/51a6c2af9d20203ddeeaf73314ba8854b38d01bd |
| https://git.kernel.org/stable/c/a637fabac554270a851033f5ab402ecb90bc479c |
| https://git.kernel.org/stable/c/76af689a45aa44714b46d1a7de4ffdf851ded896 |
| https://git.kernel.org/stable/c/a677ebd8ca2f2632ccdecbad7b87641274e15aac |
