发布于3月6日3月6日 Members Ubuntu: (Multiple Advisories) (CVE-2024-39301): Linux kernel vulnerabilities Severity 5 CVSS (AV:L/AC:L/Au:S/C:N/I:N/A:C) Published 06/25/2024 Created 08/10/2024 Added 08/09/2024 Modified 01/30/2025 Description In the Linux kernel, the following vulnerability has been resolved: net/9p: fix uninit-value in p9_client_rpc() Syzbot with the help of KMSAN reported the following error: BUG: KMSAN: uninit-value in trace_9p_client_res include/trace/events/9p.h:146 [inline] BUG: KMSAN: uninit-value in p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 trace_9p_client_res include/trace/events/9p.h:146 [inline] p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 Uninit was created at: __alloc_pages+0x9d6/0xe70 mm/page_alloc.c:4598 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page mm/slub.c:2175 [inline] allocate_slab mm/slub.c:2338 [inline] new_slab+0x2de/0x1400 mm/slub.c:2391 ___slab_alloc+0x1184/0x33d0 mm/slub.c:3525 __slab_alloc mm/slub.c:3610 [inline] __slab_alloc_node mm/slub.c:3663 [inline] slab_alloc_node mm/slub.c:3835 [inline] kmem_cache_alloc+0x6d3/0xbe0 mm/slub.c:3852 p9_tag_alloc net/9p/client.c:278 [inline] p9_client_prepare_req+0x20a/0x1770 net/9p/client.c:641 p9_client_rpc+0x27e/0x1340 net/9p/client.c:688 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 If p9_check_errors() fails early in p9_client_rpc(), req->rc.tag will not be properly initialized. However, trace_9p_client_res() ends up trying to print it out anyway before p9_client_rpc() finishes. Fix this issue by assigning default values to p9_fcall fields such as 'tag' and (just in case KMSAN unearths something new) 'id' during the tag allocation stage. Solution(s) ubuntu-upgrade-linux-image-4-15-0-1138-oracle ubuntu-upgrade-linux-image-4-15-0-1159-kvm ubuntu-upgrade-linux-image-4-15-0-1169-gcp ubuntu-upgrade-linux-image-4-15-0-1176-aws ubuntu-upgrade-linux-image-4-15-0-1184-azure ubuntu-upgrade-linux-image-4-15-0-232-generic ubuntu-upgrade-linux-image-4-15-0-232-lowlatency ubuntu-upgrade-linux-image-4-4-0-1139-aws ubuntu-upgrade-linux-image-4-4-0-1140-kvm ubuntu-upgrade-linux-image-4-4-0-1177-aws ubuntu-upgrade-linux-image-4-4-0-262-generic ubuntu-upgrade-linux-image-4-4-0-262-lowlatency ubuntu-upgrade-linux-image-5-15-0-1035-xilinx-zynqmp ubuntu-upgrade-linux-image-5-15-0-1052-gkeop ubuntu-upgrade-linux-image-5-15-0-1062-ibm ubuntu-upgrade-linux-image-5-15-0-1062-raspi ubuntu-upgrade-linux-image-5-15-0-1064-intel-iotg ubuntu-upgrade-linux-image-5-15-0-1064-nvidia ubuntu-upgrade-linux-image-5-15-0-1064-nvidia-lowlatency ubuntu-upgrade-linux-image-5-15-0-1066-gke ubuntu-upgrade-linux-image-5-15-0-1066-kvm ubuntu-upgrade-linux-image-5-15-0-1067-oracle ubuntu-upgrade-linux-image-5-15-0-1068-gcp ubuntu-upgrade-linux-image-5-15-0-1069-aws ubuntu-upgrade-linux-image-5-15-0-1072-azure ubuntu-upgrade-linux-image-5-15-0-1072-azure-fde ubuntu-upgrade-linux-image-5-15-0-121-generic ubuntu-upgrade-linux-image-5-15-0-121-generic-64k ubuntu-upgrade-linux-image-5-15-0-121-generic-lpae ubuntu-upgrade-linux-image-5-15-0-121-lowlatency ubuntu-upgrade-linux-image-5-15-0-121-lowlatency-64k ubuntu-upgrade-linux-image-5-4-0-1042-iot ubuntu-upgrade-linux-image-5-4-0-1049-xilinx-zynqmp ubuntu-upgrade-linux-image-5-4-0-1077-ibm ubuntu-upgrade-linux-image-5-4-0-1090-bluefield ubuntu-upgrade-linux-image-5-4-0-1097-gkeop ubuntu-upgrade-linux-image-5-4-0-1114-raspi ubuntu-upgrade-linux-image-5-4-0-1118-kvm ubuntu-upgrade-linux-image-5-4-0-1129-oracle ubuntu-upgrade-linux-image-5-4-0-1130-aws ubuntu-upgrade-linux-image-5-4-0-1134-gcp ubuntu-upgrade-linux-image-5-4-0-1135-azure ubuntu-upgrade-linux-image-5-4-0-192-generic ubuntu-upgrade-linux-image-5-4-0-192-generic-lpae ubuntu-upgrade-linux-image-5-4-0-192-lowlatency ubuntu-upgrade-linux-image-6-8-0-1010-gke ubuntu-upgrade-linux-image-6-8-0-1011-raspi ubuntu-upgrade-linux-image-6-8-0-1012-ibm ubuntu-upgrade-linux-image-6-8-0-1012-oem ubuntu-upgrade-linux-image-6-8-0-1012-oracle ubuntu-upgrade-linux-image-6-8-0-1012-oracle-64k ubuntu-upgrade-linux-image-6-8-0-1013-nvidia ubuntu-upgrade-linux-image-6-8-0-1013-nvidia-64k ubuntu-upgrade-linux-image-6-8-0-1013-nvidia-lowlatency ubuntu-upgrade-linux-image-6-8-0-1013-nvidia-lowlatency-64k ubuntu-upgrade-linux-image-6-8-0-1014-azure ubuntu-upgrade-linux-image-6-8-0-1014-azure-fde ubuntu-upgrade-linux-image-6-8-0-1014-gcp ubuntu-upgrade-linux-image-6-8-0-1015-aws ubuntu-upgrade-linux-image-6-8-0-44-generic ubuntu-upgrade-linux-image-6-8-0-44-generic-64k ubuntu-upgrade-linux-image-6-8-0-44-lowlatency ubuntu-upgrade-linux-image-6-8-0-44-lowlatency-64k ubuntu-upgrade-linux-image-6-8-0-45-generic ubuntu-upgrade-linux-image-6-8-0-45-generic-64k ubuntu-upgrade-linux-image-aws ubuntu-upgrade-linux-image-aws-hwe ubuntu-upgrade-linux-image-aws-lts-18-04 ubuntu-upgrade-linux-image-aws-lts-20-04 ubuntu-upgrade-linux-image-aws-lts-22-04 ubuntu-upgrade-linux-image-azure ubuntu-upgrade-linux-image-azure-cvm ubuntu-upgrade-linux-image-azure-fde ubuntu-upgrade-linux-image-azure-fde-lts-22-04 ubuntu-upgrade-linux-image-azure-lts-18-04 ubuntu-upgrade-linux-image-azure-lts-20-04 ubuntu-upgrade-linux-image-azure-lts-22-04 ubuntu-upgrade-linux-image-bluefield ubuntu-upgrade-linux-image-gcp ubuntu-upgrade-linux-image-gcp-lts-18-04 ubuntu-upgrade-linux-image-gcp-lts-20-04 ubuntu-upgrade-linux-image-gcp-lts-22-04 ubuntu-upgrade-linux-image-generic ubuntu-upgrade-linux-image-generic-64k ubuntu-upgrade-linux-image-generic-64k-hwe-20-04 ubuntu-upgrade-linux-image-generic-64k-hwe-22-04 ubuntu-upgrade-linux-image-generic-64k-hwe-24-04 ubuntu-upgrade-linux-image-generic-hwe-16-04 ubuntu-upgrade-linux-image-generic-hwe-18-04 ubuntu-upgrade-linux-image-generic-hwe-20-04 ubuntu-upgrade-linux-image-generic-hwe-22-04 ubuntu-upgrade-linux-image-generic-hwe-24-04 ubuntu-upgrade-linux-image-generic-lpae ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04 ubuntu-upgrade-linux-image-generic-lts-xenial ubuntu-upgrade-linux-image-gke ubuntu-upgrade-linux-image-gke-5-15 ubuntu-upgrade-linux-image-gkeop ubuntu-upgrade-linux-image-gkeop-5-15 ubuntu-upgrade-linux-image-gkeop-5-4 ubuntu-upgrade-linux-image-ibm ubuntu-upgrade-linux-image-ibm-classic ubuntu-upgrade-linux-image-ibm-lts-20-04 ubuntu-upgrade-linux-image-ibm-lts-24-04 ubuntu-upgrade-linux-image-intel ubuntu-upgrade-linux-image-intel-iotg ubuntu-upgrade-linux-image-kvm ubuntu-upgrade-linux-image-lowlatency ubuntu-upgrade-linux-image-lowlatency-64k ubuntu-upgrade-linux-image-lowlatency-64k-hwe-20-04 ubuntu-upgrade-linux-image-lowlatency-64k-hwe-22-04 ubuntu-upgrade-linux-image-lowlatency-hwe-16-04 ubuntu-upgrade-linux-image-lowlatency-hwe-18-04 ubuntu-upgrade-linux-image-lowlatency-hwe-20-04 ubuntu-upgrade-linux-image-lowlatency-hwe-22-04 ubuntu-upgrade-linux-image-lowlatency-lts-xenial ubuntu-upgrade-linux-image-nvidia ubuntu-upgrade-linux-image-nvidia-6-8 ubuntu-upgrade-linux-image-nvidia-64k ubuntu-upgrade-linux-image-nvidia-64k-6-8 ubuntu-upgrade-linux-image-nvidia-lowlatency ubuntu-upgrade-linux-image-nvidia-lowlatency-64k ubuntu-upgrade-linux-image-oem ubuntu-upgrade-linux-image-oem-20-04 ubuntu-upgrade-linux-image-oem-20-04b ubuntu-upgrade-linux-image-oem-20-04c ubuntu-upgrade-linux-image-oem-20-04d ubuntu-upgrade-linux-image-oem-22-04 ubuntu-upgrade-linux-image-oem-22-04a ubuntu-upgrade-linux-image-oem-22-04b ubuntu-upgrade-linux-image-oem-22-04c ubuntu-upgrade-linux-image-oem-22-04d ubuntu-upgrade-linux-image-oem-osp1 ubuntu-upgrade-linux-image-oracle ubuntu-upgrade-linux-image-oracle-64k ubuntu-upgrade-linux-image-oracle-lts-18-04 ubuntu-upgrade-linux-image-oracle-lts-20-04 ubuntu-upgrade-linux-image-oracle-lts-22-04 ubuntu-upgrade-linux-image-raspi ubuntu-upgrade-linux-image-raspi-hwe-18-04 ubuntu-upgrade-linux-image-raspi-nolpae ubuntu-upgrade-linux-image-raspi2 ubuntu-upgrade-linux-image-snapdragon-hwe-18-04 ubuntu-upgrade-linux-image-virtual ubuntu-upgrade-linux-image-virtual-hwe-16-04 ubuntu-upgrade-linux-image-virtual-hwe-18-04 ubuntu-upgrade-linux-image-virtual-hwe-20-04 ubuntu-upgrade-linux-image-virtual-hwe-22-04 ubuntu-upgrade-linux-image-virtual-hwe-24-04 ubuntu-upgrade-linux-image-virtual-lts-xenial ubuntu-upgrade-linux-image-xilinx-zynqmp References https://attackerkb.com/topics/cve-2024-39301 CVE - 2024-39301 USN-6951-1 USN-6951-2 USN-6951-3 USN-6951-4 USN-6953-1 USN-6979-1 USN-6999-1 USN-6999-2 USN-7004-1 USN-7005-1 USN-7005-2 USN-7007-1 USN-7007-2 USN-7007-3 USN-7008-1 USN-7009-1 USN-7009-2 USN-7019-1 USN-7029-1 USN-7183-1 USN-7184-1 USN-7185-1 USN-7185-2 View more
