| From bippy-1.1.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-26952: ksmbd: fix potencial out-of-bounds when buffer offset is invalid |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ksmbd: fix potencial out-of-bounds when buffer offset is invalid |
| |
| I found potencial out-of-bounds when buffer offset fields of a few requests |
| is invalid. This patch set the minimum value of buffer offset field to |
| ->Buffer offset to validate buffer length. |
| |
| The Linux kernel CVE team has assigned CVE-2024-26952 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 5.15.181 with commit 480469f145e5abf83361e608734e421b7d99693d |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.1.119 with commit ad6480c9a5d884e2704adc51d69895d93339176c |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.6.32 with commit 39bdc4197acf2ed13269167ccf093ee28cfa2a4e |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.7.12 with commit 2dcda336b6e80b72d58d30d40f2fad9724e5fe63 |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.8.3 with commit 0c5541b4c980626fa3cab16ba1a451757778bbb5 |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.9 with commit c6cd2e8d2d9aa7ee35b1fa6a668e32a22a9753da |
| |
| 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-2024-26952 |
| 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/smb2misc.c |
| fs/smb/server/smb2pdu.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/480469f145e5abf83361e608734e421b7d99693d |
| https://git.kernel.org/stable/c/ad6480c9a5d884e2704adc51d69895d93339176c |
| https://git.kernel.org/stable/c/39bdc4197acf2ed13269167ccf093ee28cfa2a4e |
| https://git.kernel.org/stable/c/2dcda336b6e80b72d58d30d40f2fad9724e5fe63 |
| https://git.kernel.org/stable/c/0c5541b4c980626fa3cab16ba1a451757778bbb5 |
| https://git.kernel.org/stable/c/c6cd2e8d2d9aa7ee35b1fa6a668e32a22a9753da |
