| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-56600: net: inet6: do not leave a dangling sk pointer in inet6_create() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: inet6: do not leave a dangling sk pointer in inet6_create() |
| |
| sock_init_data() attaches the allocated sk pointer to the provided sock |
| object. If inet6_create() fails later, the sk object is released, but the |
| sock object retains the dangling sk pointer, which may cause use-after-free |
| later. |
| |
| Clear the sock sk pointer on error. |
| |
| The Linux kernel CVE team has assigned CVE-2024-56600 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.12 with commit 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and fixed in 5.4.287 with commit f2709d1271cfdf55c670ab5c5982139ab627ddc7 |
| Issue introduced in 2.6.12 with commit 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and fixed in 5.10.231 with commit 35360255ca30776dee34d9fa764cffa24d0a5f65 |
| Issue introduced in 2.6.12 with commit 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and fixed in 5.15.174 with commit 276a473c956fb55a6f3affa9ff232e10fffa7b43 |
| Issue introduced in 2.6.12 with commit 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and fixed in 6.1.120 with commit 79e16a0d339532ea832d85798eb036fc4f9e0cea |
| Issue introduced in 2.6.12 with commit 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and fixed in 6.6.66 with commit 706b07b7b37f886423846cb38919132090bc40da |
| Issue introduced in 2.6.12 with commit 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and fixed in 6.12.5 with commit f44fceb71d72d29fb00e0ac84cdf9c081b03cd06 |
| Issue introduced in 2.6.12 with commit 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and fixed in 6.13 with commit 9df99c395d0f55fb444ef39f4d6f194ca437d884 |
| |
| 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-2024-56600 |
| 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: |
| net/ipv6/af_inet6.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/f2709d1271cfdf55c670ab5c5982139ab627ddc7 |
| https://git.kernel.org/stable/c/35360255ca30776dee34d9fa764cffa24d0a5f65 |
| https://git.kernel.org/stable/c/276a473c956fb55a6f3affa9ff232e10fffa7b43 |
| https://git.kernel.org/stable/c/79e16a0d339532ea832d85798eb036fc4f9e0cea |
| https://git.kernel.org/stable/c/706b07b7b37f886423846cb38919132090bc40da |
| https://git.kernel.org/stable/c/f44fceb71d72d29fb00e0ac84cdf9c081b03cd06 |
| https://git.kernel.org/stable/c/9df99c395d0f55fb444ef39f4d6f194ca437d884 |
