| 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-2024-58007: soc: qcom: socinfo: Avoid out of bounds read of serial number |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| soc: qcom: socinfo: Avoid out of bounds read of serial number |
| |
| On MSM8916 devices, the serial number exposed in sysfs is constant and does |
| not change across individual devices. It's always: |
| |
| db410c:/sys/devices/soc0$ cat serial_number |
| 2644893864 |
| |
| The firmware used on MSM8916 exposes SOCINFO_VERSION(0, 8), which does not |
| have support for the serial_num field in the socinfo struct. There is an |
| existing check to avoid exposing the serial number in that case, but it's |
| not correct: When checking the item_size returned by SMEM, we need to make |
| sure the *end* of the serial_num is within bounds, instead of comparing |
| with the *start* offset. The serial_number currently exposed on MSM8916 |
| devices is just an out of bounds read of whatever comes after the socinfo |
| struct in SMEM. |
| |
| Fix this by changing offsetof() to offsetofend(), so that the size of the |
| field is also taken into account. |
| |
| The Linux kernel CVE team has assigned CVE-2024-58007 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.4 with commit efb448d0a3fca01bb987dd70963da6185b81751e and fixed in 5.4.291 with commit 7445fa05317534bbd8b373c0eff8319187916030 |
| Issue introduced in 5.4 with commit efb448d0a3fca01bb987dd70963da6185b81751e and fixed in 5.10.235 with commit 2495c6598731b6d7f565140f2bd63ef4bc36ce7d |
| Issue introduced in 5.4 with commit efb448d0a3fca01bb987dd70963da6185b81751e and fixed in 5.15.179 with commit 2d09d3c9afa2fc422ac3df7c9b8534f350ee19dd |
| Issue introduced in 5.4 with commit efb448d0a3fca01bb987dd70963da6185b81751e and fixed in 6.1.129 with commit 9c88b3a3fae4d60641c3a45be66269d00eff33cd |
| Issue introduced in 5.4 with commit efb448d0a3fca01bb987dd70963da6185b81751e and fixed in 6.6.78 with commit 47470acd719d45c4c8c418c07962f74cc995652b |
| Issue introduced in 5.4 with commit efb448d0a3fca01bb987dd70963da6185b81751e and fixed in 6.12.14 with commit 407c928305c1a37232a63811c400ef616f85ccbc |
| Issue introduced in 5.4 with commit efb448d0a3fca01bb987dd70963da6185b81751e and fixed in 6.13.3 with commit 0a92feddae0634a0b87c04b19d343f6af97af700 |
| Issue introduced in 5.4 with commit efb448d0a3fca01bb987dd70963da6185b81751e and fixed in 6.14 with commit 22cf4fae6660b6e1a583a41cbf84e3046ca9ccd0 |
| |
| 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-2024-58007 |
| 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/soc/qcom/socinfo.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/7445fa05317534bbd8b373c0eff8319187916030 |
| https://git.kernel.org/stable/c/2495c6598731b6d7f565140f2bd63ef4bc36ce7d |
| https://git.kernel.org/stable/c/2d09d3c9afa2fc422ac3df7c9b8534f350ee19dd |
| https://git.kernel.org/stable/c/9c88b3a3fae4d60641c3a45be66269d00eff33cd |
| https://git.kernel.org/stable/c/47470acd719d45c4c8c418c07962f74cc995652b |
| https://git.kernel.org/stable/c/407c928305c1a37232a63811c400ef616f85ccbc |
| https://git.kernel.org/stable/c/0a92feddae0634a0b87c04b19d343f6af97af700 |
| https://git.kernel.org/stable/c/22cf4fae6660b6e1a583a41cbf84e3046ca9ccd0 |
