| 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-2022-48972: mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() |
| |
| Kernel fault injection test reports null-ptr-deref as follows: |
| |
| BUG: kernel NULL pointer dereference, address: 0000000000000008 |
| RIP: 0010:cfg802154_netdev_notifier_call+0x120/0x310 include/linux/list.h:114 |
| Call Trace: |
| <TASK> |
| raw_notifier_call_chain+0x6d/0xa0 kernel/notifier.c:87 |
| call_netdevice_notifiers_info+0x6e/0xc0 net/core/dev.c:1944 |
| unregister_netdevice_many_notify+0x60d/0xcb0 net/core/dev.c:1982 |
| unregister_netdevice_queue+0x154/0x1a0 net/core/dev.c:10879 |
| register_netdevice+0x9a8/0xb90 net/core/dev.c:10083 |
| ieee802154_if_add+0x6ed/0x7e0 net/mac802154/iface.c:659 |
| ieee802154_register_hw+0x29c/0x330 net/mac802154/main.c:229 |
| mcr20a_probe+0xaaa/0xcb1 drivers/net/ieee802154/mcr20a.c:1316 |
| |
| ieee802154_if_add() allocates wpan_dev as netdev's private data, but not |
| init the list in struct wpan_dev. cfg802154_netdev_notifier_call() manage |
| the list when device register/unregister, and may lead to null-ptr-deref. |
| |
| Use INIT_LIST_HEAD() on it to initialize it correctly. |
| |
| The Linux kernel CVE team has assigned CVE-2022-48972 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.19 with commit fcf39e6e88e9492f6688ec8ba4e1be622b904232 and fixed in 4.9.336 with commit 7410f4d1221bb182510b7778ab6eefa8b9b7102d |
| Issue introduced in 3.19 with commit fcf39e6e88e9492f6688ec8ba4e1be622b904232 and fixed in 4.14.302 with commit 9980a3ea20de40c83817877106c909cb032692d2 |
| Issue introduced in 3.19 with commit fcf39e6e88e9492f6688ec8ba4e1be622b904232 and fixed in 4.19.269 with commit f00c84fb1635c27ba24ec5df65d5bd7d7dc00008 |
| Issue introduced in 3.19 with commit fcf39e6e88e9492f6688ec8ba4e1be622b904232 and fixed in 5.4.227 with commit 1831d4540406708e48239cf38fd9c3b7ea98e08f |
| Issue introduced in 3.19 with commit fcf39e6e88e9492f6688ec8ba4e1be622b904232 and fixed in 5.10.159 with commit 42c319635c0cf7eb36eccac6cda76532f47b61a3 |
| Issue introduced in 3.19 with commit fcf39e6e88e9492f6688ec8ba4e1be622b904232 and fixed in 5.15.83 with commit a110287ef4a423980309490df632e1c1e73b3dc9 |
| Issue introduced in 3.19 with commit fcf39e6e88e9492f6688ec8ba4e1be622b904232 and fixed in 6.0.13 with commit 623918f40fa68e3bb21312a3fafb90f491bf5358 |
| Issue introduced in 3.19 with commit fcf39e6e88e9492f6688ec8ba4e1be622b904232 and fixed in 6.1 with commit b3d72d3135d2ef68296c1ee174436efd65386f04 |
| |
| 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-2022-48972 |
| 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/mac802154/iface.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/7410f4d1221bb182510b7778ab6eefa8b9b7102d |
| https://git.kernel.org/stable/c/9980a3ea20de40c83817877106c909cb032692d2 |
| https://git.kernel.org/stable/c/f00c84fb1635c27ba24ec5df65d5bd7d7dc00008 |
| https://git.kernel.org/stable/c/1831d4540406708e48239cf38fd9c3b7ea98e08f |
| https://git.kernel.org/stable/c/42c319635c0cf7eb36eccac6cda76532f47b61a3 |
| https://git.kernel.org/stable/c/a110287ef4a423980309490df632e1c1e73b3dc9 |
| https://git.kernel.org/stable/c/623918f40fa68e3bb21312a3fafb90f491bf5358 |
| https://git.kernel.org/stable/c/b3d72d3135d2ef68296c1ee174436efd65386f04 |
