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CVE-2024-50101— iommu/vt-d: Fix incorrect pci_for_each_dma_alias() for non-PCI devices

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iommu/vt-d模块中的domain_context_clear函数错误地为非PCI设备调用pci_for_each_dma_alias，可能导致内核挂起或其他意外行为。

CVSS 7.8 · High EPSS 0.24% · P16

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 15

VendorProduct Version RangeStatus
Linux Linux 9807860f6ad446459d0446550cf4a2dc23bbee6c< 0bd9a30c22afb5da203386b811ec31429d2caa78 affected
59862b869275c27beb25cda2054b59a8b5d04970< cbfa3a83eba05240ce37839ed48280a05e8e8f6c affected
48f2183a4f9d3540fc5cfc8f8451621ee92c09f8< fe2e0b6cd00abea3efac66de1da22d844364c1b0 affected
9a16ab9d640274b20813d2d17475e18d3e99d834< 04d6826ba7ba81213422276e96c90c6565169e1c affected
9a16ab9d640274b20813d2d17475e18d3e99d834< 6e02a277f1db24fa039e23783c8921c7b0e5b1b3 affected
5.15.142< 5.15.169 affected
6.1.66< 6.1.114 affected
6.6.5< 6.6.58 affected
… +7 more rows
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I. Basic Information for CVE-2024-50101

Vulnerability Information
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Vulnerability Title
iommu/vt-d: Fix incorrect pci_for_each_dma_alias() for non-PCI devices
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix incorrect pci_for_each_dma_alias() for non-PCI devices Previously, the domain_context_clear() function incorrectly called pci_for_each_dma_alias() to set up context entries for non-PCI devices. This could lead to kernel hangs or other unexpected behavior. Add a check to only call pci_for_each_dma_alias() for PCI devices. For non-PCI devices, domain_context_clear_one() is called directly.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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iommu/vt-d模块中的domain_context_clear函数错误地为非PCI设备调用pci_for_each_dma_alias，可能导致内核挂起或其他意外行为。
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 9807860f6ad446459d0446550cf4a2dc23bbee6c ~ 0bd9a30c22afb5da203386b811ec31429d2caa78 -
Linux Linux 6.7 -

II. Public POCs for CVE-2024-50101

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III. Intelligence Information for CVE-2024-50101

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Patches & Fixes for CVE-2024-50101 (4)

Same Patch Batch · Linux · 2024-11-05 · 50 CVEs total

CVE-2024-50106 9.8 CRITICAL nfsd: fix race between laundromat and free_stateid
CVE-2024-50113 8.8 HIGH firewire: core: fix invalid port index for parent device
CVE-2024-50115 8.4 HIGH KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory
CVE-2024-50125 8.0 HIGH Bluetooth: SCO: Fix UAF on sco_sock_timeout
CVE-2024-50124 8.0 HIGH Bluetooth: ISO: Fix UAF on iso_sock_timeout
CVE-2024-50132 7.8 HIGH tracing/probes: Fix MAX_TRACE_ARGS limit handling
CVE-2024-50091 7.8 HIGH dm vdo: don't refer to dedupe_context after releasing it
CVE-2023-52920 7.8 HIGH bpf: support non-r10 register spill/fill to/from stack in precision tracking
CVE-2024-50114 7.8 HIGH KVM: arm64: Unregister redistributor for failed vCPU creation
CVE-2024-50127 7.8 HIGH net: sched: fix use-after-free in taprio_change()
CVE-2024-50126 7.8 HIGH net: sched: use RCU read-side critical section in taprio_dump()
CVE-2024-50128 7.8 HIGH net: wwan: fix global oob in wwan_rtnl_policy
CVE-2024-50130 7.8 HIGH netfilter: bpf: must hold reference on net namespace
CVE-2024-50090 7.8 HIGH drm/xe/oa: Fix overflow in oa batch buffer
CVE-2024-50095 7.5 HIGH RDMA/mad: Improve handling of timed out WRs of mad agent
CVE-2024-50094 7.5 HIGH sfc: Don't invoke xdp_do_flush() from netpoll.
CVE-2024-50131 7.3 HIGH tracing: Consider the NULL character when validating the event length
CVE-2024-50096 7.3 HIGH nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error
CVE-2024-50099 7.3 HIGH arm64: probes: Remove broken LDR (literal) uprobe support
CVE-2024-50117 7.3 HIGH drm/amd: Guard against bad data for ATIF ACPI method

Showing top 20 of 50 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-50101

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