| 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-2022-49048: ipv6: fix panic when forwarding a pkt with no in6 dev |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ipv6: fix panic when forwarding a pkt with no in6 dev |
| |
| kongweibin reported a kernel panic in ip6_forward() when input interface |
| has no in6 dev associated. |
| |
| The following tc commands were used to reproduce this panic: |
| tc qdisc del dev vxlan100 root |
| tc qdisc add dev vxlan100 root netem corrupt 5% |
| |
| The Linux kernel CVE team has assigned CVE-2022-49048 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.19.199 with commit bff0854e2f804f68d3e93d19e4580dbd69777e1d and fixed in 4.19.239 with commit 74b68f5249f16c5f7f675d0f604fa6ae20e3a151 |
| Issue introduced in 5.4.136 with commit 7f4848229e91d508102b30396b8a1b710ac23637 and fixed in 5.4.190 with commit ab2f5afb7af5c68389e8c7dd29e0a98fbeaaa435 |
| Issue introduced in 5.10.54 with commit 79ec7b5b2f4fe38e5c7459ed0bdff4ef3386ab63 and fixed in 5.10.112 with commit a263712ba8c9ded25dd9d2d5ced11bcea5b33a3e |
| Issue introduced in 5.14 with commit ccd27f05ae7b8ebc40af5b004e94517a919aa862 and fixed in 5.15.35 with commit adee01bbf6cb5b3e4ed08be8ff866aac90f13836 |
| Issue introduced in 5.14 with commit ccd27f05ae7b8ebc40af5b004e94517a919aa862 and fixed in 5.17.4 with commit e69fb3de87a8923e5931a272a38fa3cceb01da44 |
| Issue introduced in 5.14 with commit ccd27f05ae7b8ebc40af5b004e94517a919aa862 and fixed in 5.18 with commit e3fa461d8b0e185b7da8a101fe94dfe6dd500ac0 |
| Issue introduced in 5.13.6 with commit 350e10d217337480158b604bbf6601c50ed161c6 |
| |
| 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-2022-49048 |
| 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/ip6_output.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/74b68f5249f16c5f7f675d0f604fa6ae20e3a151 |
| https://git.kernel.org/stable/c/ab2f5afb7af5c68389e8c7dd29e0a98fbeaaa435 |
| https://git.kernel.org/stable/c/a263712ba8c9ded25dd9d2d5ced11bcea5b33a3e |
| https://git.kernel.org/stable/c/adee01bbf6cb5b3e4ed08be8ff866aac90f13836 |
| https://git.kernel.org/stable/c/e69fb3de87a8923e5931a272a38fa3cceb01da44 |
| https://git.kernel.org/stable/c/e3fa461d8b0e185b7da8a101fe94dfe6dd500ac0 |
