| 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-2024-46826: ELF: fix kernel.randomize_va_space double read |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ELF: fix kernel.randomize_va_space double read |
| |
| ELF loader uses "randomize_va_space" twice. It is sysctl and can change |
| at any moment, so 2 loads could see 2 different values in theory with |
| unpredictable consequences. |
| |
| Issue exactly one load for consistent value across one exec. |
| |
| The Linux kernel CVE team has assigned CVE-2024-46826 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.1.110 with commit 1f81d51141a234ad0a3874b4d185dc27a521cd27 |
| Fixed in 6.6.51 with commit 53f17409abf61f66b6f05aff795e938e5ba811d1 |
| Fixed in 6.10.10 with commit 1cf8cd80903073440b6ea055811d04edd24fe4f7 |
| Fixed in 6.11 with commit 2a97388a807b6ab5538aa8f8537b2463c6988bd2 |
| |
| 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-2024-46826 |
| 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/binfmt_elf.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/1f81d51141a234ad0a3874b4d185dc27a521cd27 |
| https://git.kernel.org/stable/c/53f17409abf61f66b6f05aff795e938e5ba811d1 |
| https://git.kernel.org/stable/c/1cf8cd80903073440b6ea055811d04edd24fe4f7 |
| https://git.kernel.org/stable/c/2a97388a807b6ab5538aa8f8537b2463c6988bd2 |
