| 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-2024-42281: bpf: Fix a segment issue when downgrading gso_size |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| bpf: Fix a segment issue when downgrading gso_size |
| |
| Linearize the skb when downgrading gso_size because it may trigger a |
| BUG_ON() later when the skb is segmented as described in [1,2]. |
| |
| The Linux kernel CVE team has assigned CVE-2024-42281 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.13 with commit 2be7e212d5419a400d051c84ca9fdd083e5aacac and fixed in 5.4.282 with commit a689f5eb13a90f892a088865478b3cd39f53d5dc |
| Issue introduced in 4.13 with commit 2be7e212d5419a400d051c84ca9fdd083e5aacac and fixed in 5.10.224 with commit dda518dea60d556a2d171c0122ca7d9fdb7d473a |
| Issue introduced in 4.13 with commit 2be7e212d5419a400d051c84ca9fdd083e5aacac and fixed in 5.15.165 with commit f6bb8c90cab97a3e03f8d30e3069efe6a742e0be |
| Issue introduced in 4.13 with commit 2be7e212d5419a400d051c84ca9fdd083e5aacac and fixed in 6.1.103 with commit 11ec79f5c7f74261874744039bc1551023edd6b2 |
| Issue introduced in 4.13 with commit 2be7e212d5419a400d051c84ca9fdd083e5aacac and fixed in 6.6.44 with commit c3496314c53e7e82ddb544c825defc3e8c0e45cf |
| Issue introduced in 4.13 with commit 2be7e212d5419a400d051c84ca9fdd083e5aacac and fixed in 6.10.3 with commit ec4eea14d75f7b0491194dd413f540dd19b8c733 |
| Issue introduced in 4.13 with commit 2be7e212d5419a400d051c84ca9fdd083e5aacac and fixed in 6.11 with commit fa5ef655615a01533035c6139248c5b33aa27028 |
| |
| 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-2024-42281 |
| 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: |
| net/core/filter.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/a689f5eb13a90f892a088865478b3cd39f53d5dc |
| https://git.kernel.org/stable/c/dda518dea60d556a2d171c0122ca7d9fdb7d473a |
| https://git.kernel.org/stable/c/f6bb8c90cab97a3e03f8d30e3069efe6a742e0be |
| https://git.kernel.org/stable/c/11ec79f5c7f74261874744039bc1551023edd6b2 |
| https://git.kernel.org/stable/c/c3496314c53e7e82ddb544c825defc3e8c0e45cf |
| https://git.kernel.org/stable/c/ec4eea14d75f7b0491194dd413f540dd19b8c733 |
| https://git.kernel.org/stable/c/fa5ef655615a01533035c6139248c5b33aa27028 |
