| 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-2024-35848: eeprom: at24: fix memory corruption race condition |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| eeprom: at24: fix memory corruption race condition |
| |
| If the eeprom is not accessible, an nvmem device will be registered, the |
| read will fail, and the device will be torn down. If another driver |
| accesses the nvmem device after the teardown, it will reference |
| invalid memory. |
| |
| Move the failure point before registering the nvmem device. |
| |
| The Linux kernel CVE team has assigned CVE-2024-35848 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.3 with commit b20eb4c1f0261eebe6e1b9221c0d6e4048837778 and fixed in 5.10.217 with commit c850f71fca09ea41800ed55905980063d17e01da |
| Issue introduced in 5.3 with commit b20eb4c1f0261eebe6e1b9221c0d6e4048837778 and fixed in 5.15.159 with commit 26d32bec4c6d255a03762f33c637bfa3718be15a |
| Issue introduced in 5.3 with commit b20eb4c1f0261eebe6e1b9221c0d6e4048837778 and fixed in 6.1.91 with commit c43e5028f5a35331eb25017f5ff6cc21735005c6 |
| Issue introduced in 5.3 with commit b20eb4c1f0261eebe6e1b9221c0d6e4048837778 and fixed in 6.6.31 with commit 2af84c46b9b8f2d6c0f88d09ee5c849ae1734676 |
| Issue introduced in 5.3 with commit b20eb4c1f0261eebe6e1b9221c0d6e4048837778 and fixed in 6.8.9 with commit 6d8b56ec0c8f30d5657382f47344a32569f7a9bc |
| Issue introduced in 5.3 with commit b20eb4c1f0261eebe6e1b9221c0d6e4048837778 and fixed in 6.9 with commit f42c97027fb75776e2e9358d16bf4a99aeb04cf2 |
| |
| 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-2024-35848 |
| 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/misc/eeprom/at24.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/c850f71fca09ea41800ed55905980063d17e01da |
| https://git.kernel.org/stable/c/26d32bec4c6d255a03762f33c637bfa3718be15a |
| https://git.kernel.org/stable/c/c43e5028f5a35331eb25017f5ff6cc21735005c6 |
| https://git.kernel.org/stable/c/2af84c46b9b8f2d6c0f88d09ee5c849ae1734676 |
| https://git.kernel.org/stable/c/6d8b56ec0c8f30d5657382f47344a32569f7a9bc |
| https://git.kernel.org/stable/c/f42c97027fb75776e2e9358d16bf4a99aeb04cf2 |
