| 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-2019-25162: i2c: Fix a potential use after free |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| i2c: Fix a potential use after free |
| |
| Free the adap structure only after we are done using it. |
| This patch just moves the put_device() down a bit to avoid the |
| use after free. |
| |
| [wsa: added comment to the code, added Fixes tag] |
| |
| The Linux kernel CVE team has assigned CVE-2019-25162 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.3 with commit 611e12ea0f121a31d9e9c4ce2a18a77abc2f28d6 and fixed in 4.14.291 with commit e6412ba3b6508bdf9c074d310bf4144afa6aec1a |
| Issue introduced in 4.3 with commit 611e12ea0f121a31d9e9c4ce2a18a77abc2f28d6 and fixed in 4.19.256 with commit 23a191b132cd87f746c62f3dc27da33683d85829 |
| Issue introduced in 4.3 with commit 611e12ea0f121a31d9e9c4ce2a18a77abc2f28d6 and fixed in 5.4.211 with commit 871a1e94929a27bf6e2cd99523865c840bbc2d87 |
| Issue introduced in 4.3 with commit 611e12ea0f121a31d9e9c4ce2a18a77abc2f28d6 and fixed in 5.10.137 with commit 81cb31756888bb062e92d2dca21cd629d77a46a9 |
| Issue introduced in 4.3 with commit 611e12ea0f121a31d9e9c4ce2a18a77abc2f28d6 and fixed in 5.15.61 with commit 35927d7509ab9bf41896b7e44f639504eae08af7 |
| Issue introduced in 4.3 with commit 611e12ea0f121a31d9e9c4ce2a18a77abc2f28d6 and fixed in 5.18.18 with commit e8e1a046cf87c8b1363e5de835114f2779e2aaf4 |
| Issue introduced in 4.3 with commit 611e12ea0f121a31d9e9c4ce2a18a77abc2f28d6 and fixed in 5.19.2 with commit 12b0606000d0828630c033bf0c74c748464fe87d |
| Issue introduced in 4.3 with commit 611e12ea0f121a31d9e9c4ce2a18a77abc2f28d6 and fixed in 6.0 with commit e4c72c06c367758a14f227c847f9d623f1994ecf |
| |
| 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-2019-25162 |
| 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/i2c/i2c-core-base.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/e6412ba3b6508bdf9c074d310bf4144afa6aec1a |
| https://git.kernel.org/stable/c/23a191b132cd87f746c62f3dc27da33683d85829 |
| https://git.kernel.org/stable/c/871a1e94929a27bf6e2cd99523865c840bbc2d87 |
| https://git.kernel.org/stable/c/81cb31756888bb062e92d2dca21cd629d77a46a9 |
| https://git.kernel.org/stable/c/35927d7509ab9bf41896b7e44f639504eae08af7 |
| https://git.kernel.org/stable/c/e8e1a046cf87c8b1363e5de835114f2779e2aaf4 |
| https://git.kernel.org/stable/c/12b0606000d0828630c033bf0c74c748464fe87d |
| https://git.kernel.org/stable/c/e4c72c06c367758a14f227c847f9d623f1994ecf |
