| 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-2024-56648: net: hsr: avoid potential out-of-bound access in fill_frame_info() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: hsr: avoid potential out-of-bound access in fill_frame_info() |
| |
| syzbot is able to feed a packet with 14 bytes, pretending |
| it is a vlan one. |
| |
| Since fill_frame_info() is relying on skb->mac_len already, |
| extend the check to cover this case. |
| |
| BUG: KMSAN: uninit-value in fill_frame_info net/hsr/hsr_forward.c:709 [inline] |
| BUG: KMSAN: uninit-value in hsr_forward_skb+0x9ee/0x3b10 net/hsr/hsr_forward.c:724 |
| fill_frame_info net/hsr/hsr_forward.c:709 [inline] |
| hsr_forward_skb+0x9ee/0x3b10 net/hsr/hsr_forward.c:724 |
| hsr_dev_xmit+0x2f0/0x350 net/hsr/hsr_device.c:235 |
| __netdev_start_xmit include/linux/netdevice.h:5002 [inline] |
| netdev_start_xmit include/linux/netdevice.h:5011 [inline] |
| xmit_one net/core/dev.c:3590 [inline] |
| dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3606 |
| __dev_queue_xmit+0x366a/0x57d0 net/core/dev.c:4434 |
| dev_queue_xmit include/linux/netdevice.h:3168 [inline] |
| packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276 |
| packet_snd net/packet/af_packet.c:3146 [inline] |
| packet_sendmsg+0x91ae/0xa6f0 net/packet/af_packet.c:3178 |
| sock_sendmsg_nosec net/socket.c:711 [inline] |
| __sock_sendmsg+0x30f/0x380 net/socket.c:726 |
| __sys_sendto+0x594/0x750 net/socket.c:2197 |
| __do_sys_sendto net/socket.c:2204 [inline] |
| __se_sys_sendto net/socket.c:2200 [inline] |
| __x64_sys_sendto+0x125/0x1d0 net/socket.c:2200 |
| x64_sys_call+0x346a/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:45 |
| do_syscall_x64 arch/x86/entry/common.c:52 [inline] |
| do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 |
| entry_SYSCALL_64_after_hwframe+0x77/0x7f |
| |
| Uninit was created at: |
| slab_post_alloc_hook mm/slub.c:4091 [inline] |
| slab_alloc_node mm/slub.c:4134 [inline] |
| kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4186 |
| kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:587 |
| __alloc_skb+0x363/0x7b0 net/core/skbuff.c:678 |
| alloc_skb include/linux/skbuff.h:1323 [inline] |
| alloc_skb_with_frags+0xc8/0xd00 net/core/skbuff.c:6612 |
| sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2881 |
| packet_alloc_skb net/packet/af_packet.c:2995 [inline] |
| packet_snd net/packet/af_packet.c:3089 [inline] |
| packet_sendmsg+0x74c6/0xa6f0 net/packet/af_packet.c:3178 |
| sock_sendmsg_nosec net/socket.c:711 [inline] |
| __sock_sendmsg+0x30f/0x380 net/socket.c:726 |
| __sys_sendto+0x594/0x750 net/socket.c:2197 |
| __do_sys_sendto net/socket.c:2204 [inline] |
| __se_sys_sendto net/socket.c:2200 [inline] |
| __x64_sys_sendto+0x125/0x1d0 net/socket.c:2200 |
| x64_sys_call+0x346a/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:45 |
| do_syscall_x64 arch/x86/entry/common.c:52 [inline] |
| do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 |
| entry_SYSCALL_64_after_hwframe+0x77/0x7f |
| |
| The Linux kernel CVE team has assigned CVE-2024-56648 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.10.42 with commit f6442ee08fe66c8e45c4f246531a2aaf4f17a7a7 and fixed in 5.10.231 with commit aa632691c722a123e47ccd05a3afdd5f87a36061 |
| Issue introduced in 5.13 with commit 48b491a5cc74333c4a6a82fe21cea42c055a3b0b and fixed in 5.15.174 with commit c6e778901d0055356c4fb223058364cae731494a |
| Issue introduced in 5.13 with commit 48b491a5cc74333c4a6a82fe21cea42c055a3b0b and fixed in 6.1.120 with commit 6bb5c8ebc99f0671dbd3c9408ebaf935c3951186 |
| Issue introduced in 5.13 with commit 48b491a5cc74333c4a6a82fe21cea42c055a3b0b and fixed in 6.6.66 with commit 3c215663b3e27a3b08cefcaea623ff54c70c8035 |
| Issue introduced in 5.13 with commit 48b491a5cc74333c4a6a82fe21cea42c055a3b0b and fixed in 6.12.5 with commit 7ea527fbd7b94d0bee64a0a7e98279bcc654b322 |
| Issue introduced in 5.13 with commit 48b491a5cc74333c4a6a82fe21cea42c055a3b0b and fixed in 6.13 with commit b9653d19e556c6afd035602927a93d100a0d7644 |
| Issue introduced in 5.12.9 with commit 4ffd1d4a6b306ff69cbe412d2c54d2dd349ff436 |
| |
| 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-2024-56648 |
| 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/hsr/hsr_forward.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/aa632691c722a123e47ccd05a3afdd5f87a36061 |
| https://git.kernel.org/stable/c/c6e778901d0055356c4fb223058364cae731494a |
| https://git.kernel.org/stable/c/6bb5c8ebc99f0671dbd3c9408ebaf935c3951186 |
| https://git.kernel.org/stable/c/3c215663b3e27a3b08cefcaea623ff54c70c8035 |
| https://git.kernel.org/stable/c/7ea527fbd7b94d0bee64a0a7e98279bcc654b322 |
| https://git.kernel.org/stable/c/b9653d19e556c6afd035602927a93d100a0d7644 |
