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CVE-2022-48724— iommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping()

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 intel_setup_irq_remapping 中存在内存泄漏。

AI Predicted 3.3 Difficulty: Trivial EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 21

VendorProduct Version RangeStatus
Linux Linux 03992c88d71ba79d956f2ed54e370e630b8750f4< a0c685ba99961b1dd894b2e470e692a539770f6d affected
c0c489e5430530a7021f4c889cd5931597e4b200< a31cb1f0fb6caf46ffe88c41252b6b7a4ee062d9 affected
36f7355545725c5e9400520ae33e6ee16cf78c0e< 5c43d46daa0d2928234dd2792ebebc35d29ee2d1 affected
e3beca48a45b5e0e6e6a4e0124276b8248dcc9bb< 9d9995b0371e4e8c18d4f955479e5d47efe7b2d4 affected
e3beca48a45b5e0e6e6a4e0124276b8248dcc9bb< 336d096b62bdc673e852b6b80d5072d7888ce85d affected
e3beca48a45b5e0e6e6a4e0124276b8248dcc9bb< b62eceb5f8f08815fe3f945fc55bbf997c344ecd affected
e3beca48a45b5e0e6e6a4e0124276b8248dcc9bb< 99e675d473eb8cf2deac1376a0f840222fc1adcf affected
b4198ecddb87cd955aa9e024dd656af5ceaf6196 affected
… +13 more rows
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I. Basic Information for CVE-2022-48724

Vulnerability Information
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Vulnerability Title
iommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping() After commit e3beca48a45b ("irqdomain/treewide: Keep firmware node unconditionally allocated"). For tear down scenario, fn is only freed after fail to allocate ir_domain, though it also should be freed in case dmar_enable_qi returns error. Besides free fn, irq_domain and ir_msi_domain need to be removed as well if intel_setup_irq_remapping fails to enable queued invalidation. Improve the rewinding path by add out_free_ir_domain and out_free_fwnode lables per Baolu's suggestion.
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 iommu/vt-d 模块 intel_setup_irq_remapping 中存在内存泄漏。
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 03992c88d71ba79d956f2ed54e370e630b8750f4 ~ a0c685ba99961b1dd894b2e470e692a539770f6d -
Linux Linux 5.8 -

II. Public POCs for CVE-2022-48724

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III. Intelligence Information for CVE-2022-48724

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Other References for CVE-2022-48724 (5)

Same Patch Batch · Linux · 2024-06-20 · 67 CVEs total

CVE-2022-48711 9.8 CRITICAL tipc: improve size validations for received domain records
CVE-2024-38620 8.8 HIGH Bluetooth: HCI: Remove HCI_AMP support
CVE-2022-48743 8.1 HIGH net: amd-xgbe: Fix skb data length underflow
CVE-2021-47620 8.1 HIGH Bluetooth: refactor malicious adv data check
CVE-2022-48759 7.8 HIGH rpmsg: char: Fix race between the release of rpmsg_ctrldev and cdev
CVE-2022-48716 7.8 HIGH ASoC: codecs: wcd938x: fix incorrect used of portid
CVE-2022-48771 7.8 HIGH drm/vmwgfx: Fix stale file descriptors on failed usercopy
CVE-2022-48720 7.8 HIGH net: macsec: Fix offload support for NETDEV_UNREGISTER event
CVE-2022-48721 7.8 HIGH net/smc: Forward wakeup to smc socket waitqueue after fallback
CVE-2022-48762 7.8 HIGH arm64: extable: fix load_unaligned_zeropad() reg indices
CVE-2022-48729 7.8 HIGH IB/hfi1: Fix panic with larger ipoib send_queue_size
CVE-2022-48726 7.8 HIGH RDMA/ucma: Protect mc during concurrent multicast leaves
CVE-2022-48733 7.8 HIGH btrfs: fix use-after-free after failure to create a snapshot
CVE-2022-48735 7.8 HIGH ALSA: hda: Fix UAF of leds class devs at unbinding
CVE-2022-48754 7.8 HIGH phylib: fix potential use-after-free
CVE-2022-48742 7.8 HIGH rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()
CVE-2022-48751 7.8 HIGH net/smc: Transitional solution for clcsock race issue
CVE-2022-48744 7.5 HIGH net/mlx5e: Avoid field-overflowing memcpy()
CVE-2022-48727 7.3 HIGH KVM: arm64: Avoid consuming a stale esr value when SError occur
CVE-2022-48717 7.1 HIGH ASoC: max9759: fix underflow in speaker_gain_control_put()

Showing top 20 of 67 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-48724

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