| 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-2024-40902: jfs: xattr: fix buffer overflow for invalid xattr |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| jfs: xattr: fix buffer overflow for invalid xattr |
| |
| When an xattr size is not what is expected, it is printed out to the |
| kernel log in hex format as a form of debugging. But when that xattr |
| size is bigger than the expected size, printing it out can cause an |
| access off the end of the buffer. |
| |
| Fix this all up by properly restricting the size of the debug hex dump |
| in the kernel log. |
| |
| The Linux kernel CVE team has assigned CVE-2024-40902 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.19.317 with commit f0dedb5c511ed82cbaff4997a8decf2351ba549f |
| Fixed in 5.4.279 with commit 1e84c9b1838152a87cf453270a5fa75c5037e83a |
| Fixed in 5.10.221 with commit fc745f6e83cb650f9a5f2c864158e3a5ea76dad0 |
| Fixed in 5.15.162 with commit 480e5bc21f2c42d90c2c16045d64d824dcdd5ec7 |
| Fixed in 6.1.95 with commit 33aecc5799c93d3ee02f853cb94e201f9731f123 |
| Fixed in 6.6.35 with commit 4598233d9748fe4db4e13b9f473588aa25e87d69 |
| Fixed in 6.9.6 with commit b537cb2f4c4a1357479716a9c339c0bda03d873f |
| Fixed in 6.10 with commit 7c55b78818cfb732680c4a72ab270cc2d2ee3d0f |
| |
| 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-2024-40902 |
| 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/jfs/xattr.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/f0dedb5c511ed82cbaff4997a8decf2351ba549f |
| https://git.kernel.org/stable/c/1e84c9b1838152a87cf453270a5fa75c5037e83a |
| https://git.kernel.org/stable/c/fc745f6e83cb650f9a5f2c864158e3a5ea76dad0 |
| https://git.kernel.org/stable/c/480e5bc21f2c42d90c2c16045d64d824dcdd5ec7 |
| https://git.kernel.org/stable/c/33aecc5799c93d3ee02f853cb94e201f9731f123 |
| https://git.kernel.org/stable/c/4598233d9748fe4db4e13b9f473588aa25e87d69 |
| https://git.kernel.org/stable/c/b537cb2f4c4a1357479716a9c339c0bda03d873f |
| https://git.kernel.org/stable/c/7c55b78818cfb732680c4a72ab270cc2d2ee3d0f |
