| 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-2024-26863: hsr: Fix uninit-value access in hsr_get_node() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| hsr: Fix uninit-value access in hsr_get_node() |
| |
| KMSAN reported the following uninit-value access issue [1]: |
| |
| ===================================================== |
| BUG: KMSAN: uninit-value in hsr_get_node+0xa2e/0xa40 net/hsr/hsr_framereg.c:246 |
| hsr_get_node+0xa2e/0xa40 net/hsr/hsr_framereg.c:246 |
| fill_frame_info net/hsr/hsr_forward.c:577 [inline] |
| hsr_forward_skb+0xe12/0x30e0 net/hsr/hsr_forward.c:615 |
| hsr_dev_xmit+0x1a1/0x270 net/hsr/hsr_device.c:223 |
| __netdev_start_xmit include/linux/netdevice.h:4940 [inline] |
| netdev_start_xmit include/linux/netdevice.h:4954 [inline] |
| xmit_one net/core/dev.c:3548 [inline] |
| dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564 |
| __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349 |
| dev_queue_xmit include/linux/netdevice.h:3134 [inline] |
| packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276 |
| packet_snd net/packet/af_packet.c:3087 [inline] |
| packet_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:3119 |
| sock_sendmsg_nosec net/socket.c:730 [inline] |
| __sock_sendmsg net/socket.c:745 [inline] |
| __sys_sendto+0x735/0xa10 net/socket.c:2191 |
| __do_sys_sendto net/socket.c:2203 [inline] |
| __se_sys_sendto net/socket.c:2199 [inline] |
| __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199 |
| do_syscall_x64 arch/x86/entry/common.c:52 [inline] |
| do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83 |
| entry_SYSCALL_64_after_hwframe+0x63/0x6b |
| |
| Uninit was created at: |
| slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768 |
| slab_alloc_node mm/slub.c:3478 [inline] |
| kmem_cache_alloc_node+0x5e9/0xb10 mm/slub.c:3523 |
| kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:560 |
| __alloc_skb+0x318/0x740 net/core/skbuff.c:651 |
| alloc_skb include/linux/skbuff.h:1286 [inline] |
| alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6334 |
| sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2787 |
| packet_alloc_skb net/packet/af_packet.c:2936 [inline] |
| packet_snd net/packet/af_packet.c:3030 [inline] |
| packet_sendmsg+0x70e8/0x9f30 net/packet/af_packet.c:3119 |
| sock_sendmsg_nosec net/socket.c:730 [inline] |
| __sock_sendmsg net/socket.c:745 [inline] |
| __sys_sendto+0x735/0xa10 net/socket.c:2191 |
| __do_sys_sendto net/socket.c:2203 [inline] |
| __se_sys_sendto net/socket.c:2199 [inline] |
| __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199 |
| do_syscall_x64 arch/x86/entry/common.c:52 [inline] |
| do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83 |
| entry_SYSCALL_64_after_hwframe+0x63/0x6b |
| |
| CPU: 1 PID: 5033 Comm: syz-executor334 Not tainted 6.7.0-syzkaller-00562-g9f8413c4a66f #0 |
| Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 |
| ===================================================== |
| |
| If the packet type ID field in the Ethernet header is either ETH_P_PRP or |
| ETH_P_HSR, but it is not followed by an HSR tag, hsr_get_skb_sequence_nr() |
| reads an invalid value as a sequence number. This causes the above issue. |
| |
| This patch fixes the issue by returning NULL if the Ethernet header is not |
| followed by an HSR tag. |
| |
| The Linux kernel CVE team has assigned CVE-2024-26863 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.17 with commit f266a683a4804dc499efc6c2206ef68efed029d0 and fixed in 4.19.311 with commit e3b2bfb8ff1810a537b2aa55ba906a6743ed120c |
| Issue introduced in 3.17 with commit f266a683a4804dc499efc6c2206ef68efed029d0 and fixed in 5.4.273 with commit 889ed056eae7fda85b769a9ab33c093379c45428 |
| Issue introduced in 3.17 with commit f266a683a4804dc499efc6c2206ef68efed029d0 and fixed in 5.10.214 with commit 7fb2d4d6bb1c85f7a23aace0ed6c86a95dea792a |
| Issue introduced in 3.17 with commit f266a683a4804dc499efc6c2206ef68efed029d0 and fixed in 5.15.153 with commit a809bbfd0e503351d3051317288a70a4569a4949 |
| Issue introduced in 3.17 with commit f266a683a4804dc499efc6c2206ef68efed029d0 and fixed in 6.1.83 with commit 1ed222ca7396938eb1ab2d034f1ba0d8b00a7122 |
| Issue introduced in 3.17 with commit f266a683a4804dc499efc6c2206ef68efed029d0 and fixed in 6.6.23 with commit 39cc316fb3bc5e7c9dc5eed314fe510d119c6862 |
| Issue introduced in 3.17 with commit f266a683a4804dc499efc6c2206ef68efed029d0 and fixed in 6.7.11 with commit 97d2148ea435dff4b4e71817c9032eb321bcd37e |
| Issue introduced in 3.17 with commit f266a683a4804dc499efc6c2206ef68efed029d0 and fixed in 6.8.2 with commit 09e5cdbe2cc88c3c758927644a3eb02fac317209 |
| Issue introduced in 3.17 with commit f266a683a4804dc499efc6c2206ef68efed029d0 and fixed in 6.9 with commit ddbec99f58571301679addbc022256970ca3eac6 |
| |
| 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-2024-26863 |
| 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_framereg.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/e3b2bfb8ff1810a537b2aa55ba906a6743ed120c |
| https://git.kernel.org/stable/c/889ed056eae7fda85b769a9ab33c093379c45428 |
| https://git.kernel.org/stable/c/7fb2d4d6bb1c85f7a23aace0ed6c86a95dea792a |
| https://git.kernel.org/stable/c/a809bbfd0e503351d3051317288a70a4569a4949 |
| https://git.kernel.org/stable/c/1ed222ca7396938eb1ab2d034f1ba0d8b00a7122 |
| https://git.kernel.org/stable/c/39cc316fb3bc5e7c9dc5eed314fe510d119c6862 |
| https://git.kernel.org/stable/c/97d2148ea435dff4b4e71817c9032eb321bcd37e |
| https://git.kernel.org/stable/c/09e5cdbe2cc88c3c758927644a3eb02fac317209 |
| https://git.kernel.org/stable/c/ddbec99f58571301679addbc022256970ca3eac6 |
