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CVE-2022-48916— iommu/vt-d: Fix double list_add when enabling VMD in scalable mode

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在启用VMD和IOMMU可扩展模式时存在双列表添加问题，导致内核崩溃。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 474dd1c6506411752a9b2f2233eec11f1733a099< 2aaa085bd012a83be7104356301828585a2253ed affected
474dd1c6506411752a9b2f2233eec11f1733a099< d5ad4214d9c6c6e465c192789020a091282dfee7 affected
474dd1c6506411752a9b2f2233eec11f1733a099< b00833768e170a31af09268f7ab96aecfcca9623 affected
77c6a77a068c2304e3f19abee67b0c76dde4c0ea affected
7e6a4c304debd9be7cacecbe99b3481985e0c885 affected
5.12.19< 5.13 affected
5.13.4< 5.14 affected
5.14 affected
… +4 more rows
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I. Basic Information for CVE-2022-48916

Vulnerability Information
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Vulnerability Title
iommu/vt-d: Fix double list_add when enabling VMD in scalable mode
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix double list_add when enabling VMD in scalable mode When enabling VMD and IOMMU scalable mode, the following kernel panic call trace/kernel log is shown in Eagle Stream platform (Sapphire Rapids CPU) during booting: pci 0000:59:00.5: Adding to iommu group 42 ... vmd 0000:59:00.5: PCI host bridge to bus 10000:80 pci 10000:80:01.0: [8086:352a] type 01 class 0x060400 pci 10000:80:01.0: reg 0x10: [mem 0x00000000-0x0001ffff 64bit] pci 10000:80:01.0: enabling Extended Tags pci 10000:80:01.0: PME# supported from D0 D3hot D3cold pci 10000:80:01.0: DMAR: Setup RID2PASID failed pci 10000:80:01.0: Failed to add to iommu group 42: -16 pci 10000:80:03.0: [8086:352b] type 01 class 0x060400 pci 10000:80:03.0: reg 0x10: [mem 0x00000000-0x0001ffff 64bit] pci 10000:80:03.0: enabling Extended Tags pci 10000:80:03.0: PME# supported from D0 D3hot D3cold ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:29! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.17.0-rc3+ #7 Hardware name: Lenovo ThinkSystem SR650V3/SB27A86647, BIOS ESE101Y-1.00 01/13/2022 Workqueue: events work_for_cpu_fn RIP: 0010:__list_add_valid.cold+0x26/0x3f Code: 9a 4a ab ff 4c 89 c1 48 c7 c7 40 0c d9 9e e8 b9 b1 fe ff 0f 0b 48 89 f2 4c 89 c1 48 89 fe 48 c7 c7 f0 0c d9 9e e8 a2 b1 fe ff <0f> 0b 48 89 d1 4c 89 c6 4c 89 ca 48 c7 c7 98 0c d9 9e e8 8b b1 fe RSP: 0000:ff5ad434865b3a40 EFLAGS: 00010246 RAX: 0000000000000058 RBX: ff4d61160b74b880 RCX: ff4d61255e1fffa8 RDX: 0000000000000000 RSI: 00000000fffeffff RDI: ffffffff9fd34f20 RBP: ff4d611d8e245c00 R08: 0000000000000000 R09: ff5ad434865b3888 R10: ff5ad434865b3880 R11: ff4d61257fdc6fe8 R12: ff4d61160b74b8a0 R13: ff4d61160b74b8a0 R14: ff4d611d8e245c10 R15: ff4d611d8001ba70 FS: 0000000000000000(0000) GS:ff4d611d5ea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ff4d611fa1401000 CR3: 0000000aa0210001 CR4: 0000000000771ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> intel_pasid_alloc_table+0x9c/0x1d0 dmar_insert_one_dev_info+0x423/0x540 ? device_to_iommu+0x12d/0x2f0 intel_iommu_attach_device+0x116/0x290 __iommu_attach_device+0x1a/0x90 iommu_group_add_device+0x190/0x2c0 __iommu_probe_device+0x13e/0x250 iommu_probe_device+0x24/0x150 iommu_bus_notifier+0x69/0x90 blocking_notifier_call_chain+0x5a/0x80 device_add+0x3db/0x7b0 ? arch_memremap_can_ram_remap+0x19/0x50 ? memremap+0x75/0x140 pci_device_add+0x193/0x1d0 pci_scan_single_device+0xb9/0xf0 pci_scan_slot+0x4c/0x110 pci_scan_child_bus_extend+0x3a/0x290 vmd_enable_domain.constprop.0+0x63e/0x820 vmd_probe+0x163/0x190 local_pci_probe+0x42/0x80 work_for_cpu_fn+0x13/0x20 process_one_work+0x1e2/0x3b0 worker_thread+0x1c4/0x3a0 ? rescuer_thread+0x370/0x370 kthread+0xc7/0xf0 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- ... Kernel panic - not syncing: Fatal exception Kernel Offset: 0x1ca00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) ---[ end Kernel panic - not syncing: Fatal exception ]--- The following 'lspci' output shows devices '10000:80:*' are subdevices of the VMD device 0000:59:00.5: $ lspci ... 0000:59:00.5 RAID bus controller: Intel Corporation Volume Management Device NVMe RAID Controller (rev 20) ... 10000:80:01.0 PCI bridge: Intel Corporation Device 352a (rev 03) 10000:80:03.0 PCI bridge: Intel Corporation Device 352b (rev 03) 10000:80:05.0 PCI bridge: Intel Corporation Device 352c (rev 03) 10000:80:07.0 PCI bridge: Intel Corporation Device 352d (rev 03) 10000:81:00.0 Non-Volatile memory controller: Intel Corporation NVMe Datacenter SSD [3DNAND, Beta Rock Controller] 10000:82:00 ---truncated---
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在启用VMD和IOMMU可扩展模式时存在双列表添加问题，导致内核崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 474dd1c6506411752a9b2f2233eec11f1733a099 ~ 2aaa085bd012a83be7104356301828585a2253ed -
Linux Linux 5.14 -

II. Public POCs for CVE-2022-48916

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III. Intelligence Information for CVE-2022-48916

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Other References for CVE-2022-48916 (3)

Same Patch Batch · Linux · 2024-08-22 · 42 CVEs total

CVE-2022-48941 8.8 HIGH ice: fix concurrent reset and removal of VFs
CVE-2022-48919 8.8 HIGH cifs: fix double free race when mount fails in cifs_get_root()
CVE-2022-48925 7.8 HIGH RDMA/cma: Do not change route.addr.src_addr outside state checks
CVE-2022-48923 7.8 HIGH btrfs: prevent copying too big compressed lzo segment
CVE-2022-48927 7.8 HIGH iio: adc: tsc2046: fix memory corruption by preventing array overflow
CVE-2022-48913 7.8 HIGH blktrace: fix use after free for struct blk_trace
CVE-2022-48912 7.8 HIGH netfilter: fix use-after-free in __nf_register_net_hook()
CVE-2022-48911 7.8 HIGH netfilter: nf_queue: fix possible use-after-free
CVE-2022-48932 7.8 HIGH net/mlx5: DR, Fix slab-out-of-bounds in mlx5_cmd_dr_create_fte
CVE-2022-48935 7.8 HIGH netfilter: nf_tables: unregister flowtable hooks on netns exit
CVE-2022-48940 7.8 HIGH bpf: Fix crash due to incorrect copy_map_value
CVE-2022-48943 7.1 HIGH KVM: x86/mmu: make apf token non-zero to fix bug
CVE-2022-48933 netfilter: nf_tables: fix memory leak during stateful obj update
CVE-2022-48931 configfs: fix a race in configfs_{,un}register_subsystem()
CVE-2022-48934 nfp: flower: Fix a potential leak in nfp_tunnel_add_shared_mac()
CVE-2022-48937 io_uring: add a schedule point in io_add_buffers()
CVE-2022-48930 RDMA/ib_srp: Fix a deadlock
CVE-2022-48929 bpf: Fix crash due to out of bounds access into reg2btf_ids.
CVE-2022-48928 iio: adc: men_z188_adc: Fix a resource leak in an error handling path
CVE-2022-48938 CDC-NCM: avoid overflow in sanity checking

Showing top 20 of 42 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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