| 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-2024-36957: octeontx2-af: avoid off-by-one read from userspace |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| octeontx2-af: avoid off-by-one read from userspace |
| |
| We try to access count + 1 byte from userspace with memdup_user(buffer, |
| count + 1). However, the userspace only provides buffer of count bytes and |
| only these count bytes are verified to be okay to access. To ensure the |
| copied buffer is NUL terminated, we use memdup_user_nul instead. |
| |
| The Linux kernel CVE team has assigned CVE-2024-36957 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.10.20 with commit dae49384d0d7695540e2d75168f323cef1384810 and fixed in 5.10.217 with commit bcdac70adceb44373da204c3c297f2a98e13216e |
| Issue introduced in 5.12 with commit 3a2eb515d1367c0f667b76089a6e727279c688b8 and fixed in 5.15.159 with commit ec697fbd38cbe2eef0948b58673b146caa95402f |
| Issue introduced in 5.12 with commit 3a2eb515d1367c0f667b76089a6e727279c688b8 and fixed in 6.1.91 with commit 8f11fe3ea3fc261640cfc8a5addd838000407c67 |
| Issue introduced in 5.12 with commit 3a2eb515d1367c0f667b76089a6e727279c688b8 and fixed in 6.6.31 with commit 0a0285cee11c7dcc2657bcd456e469958a5009e7 |
| Issue introduced in 5.12 with commit 3a2eb515d1367c0f667b76089a6e727279c688b8 and fixed in 6.8.10 with commit fc3e0076c1f82fe981d321e3a7bad4cbee542c19 |
| Issue introduced in 5.12 with commit 3a2eb515d1367c0f667b76089a6e727279c688b8 and fixed in 6.9 with commit f299ee709fb45036454ca11e90cb2810fe771878 |
| Issue introduced in 5.11.3 with commit c9a2ed3fdd037314a71e6a6ba5d99a3605f6f9c7 |
| |
| 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-2024-36957 |
| 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/net/ethernet/marvell/octeontx2/af/rvu_debugfs.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/bcdac70adceb44373da204c3c297f2a98e13216e |
| https://git.kernel.org/stable/c/ec697fbd38cbe2eef0948b58673b146caa95402f |
| https://git.kernel.org/stable/c/8f11fe3ea3fc261640cfc8a5addd838000407c67 |
| https://git.kernel.org/stable/c/0a0285cee11c7dcc2657bcd456e469958a5009e7 |
| https://git.kernel.org/stable/c/fc3e0076c1f82fe981d321e3a7bad4cbee542c19 |
| https://git.kernel.org/stable/c/f299ee709fb45036454ca11e90cb2810fe771878 |
