Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2022-48894— iommu/arm-smmu-v3: Don't unregister on shutdown

AI Predicted 5.5 Difficulty: Moderate EPSS 0.21% · P11

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinux57365a04c92126525a58bf7a1599ddfa832415e9< ead3e6c79479890444c777fd329afc125fecde48affected
57365a04c92126525a58bf7a1599ddfa832415e9< 32ea2c57dc216b6ad8125fa680d31daa5d421c95affected
6.1affected
< 6.1unaffected
6.1.7≤ 6.1.*unaffected
6.2≤ *unaffected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2022-48894

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
iommu/arm-smmu-v3: Don't unregister on shutdown
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu-v3: Don't unregister on shutdown Similar to SMMUv2, this driver calls iommu_device_unregister() from the shutdown path, which removes the IOMMU groups with no coordination whatsoever with their users - shutdown methods are optional in device drivers. This can lead to NULL pointer dereferences in those drivers' DMA API calls, or worse. Instead of calling the full arm_smmu_device_remove() from arm_smmu_device_shutdown(), let's pick only the relevant function call - arm_smmu_device_disable() - more or less the reverse of arm_smmu_device_reset() - and call just that from the shutdown path.
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/arm-smmu-v3 驱动在关闭时不应该注销。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 57365a04c92126525a58bf7a1599ddfa832415e9 ~ ead3e6c79479890444c777fd329afc125fecde48 -
LinuxLinux 6.1 -

II. Public POCs for CVE-2022-48894

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2022-48894

请登录查看更多情报信息。

Other References for CVE-2022-48894 (2)

Same Patch Batch · Linux · 2024-08-21 · 69 CVEs total

CVE-2023-529108.8 HIGHiommu/iova: Fix alloc iova overflows issue
CVE-2024-438818.8 HIGHwifi: ath12k: change DMA direction while mapping reinjected packets
CVE-2022-488718.8 HIGHtty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer
CVE-2024-438788.1 HIGHxfrm: Fix input error path memory access
CVE-2022-488837.8 HIGHnet/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent
CVE-2024-438777.8 HIGHmedia: pci: ivtv: Add check for DMA map result
CVE-2023-529037.8 HIGHio_uring: lock overflowing for IOPOLL
CVE-2023-529077.8 HIGHnfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()
CVE-2024-438807.8 HIGHmlxsw: spectrum_acl_erp: Fix object nesting warning
CVE-2024-438827.8 HIGHexec: Fix ToCToU between perm check and set-uid/gid usage
CVE-2022-488997.8 HIGHdrm/virtio: Fix GEM handle creation UAF
CVE-2022-488727.8 HIGHmisc: fastrpc: Fix use-after-free race condition for maps
CVE-2022-488737.8 HIGHmisc: fastrpc: Don't remove map on creater_process and device_release
CVE-2022-488927.8 HIGHsched/core: Fix use-after-free bug in dup_user_cpus_ptr()
CVE-2022-488747.8 HIGHmisc: fastrpc: Fix use-after-free and race in fastrpc_map_find
CVE-2022-488877.8 HIGHdrm/vmwgfx: Remove rcu locks from user resources
CVE-2022-488787.8 HIGHBluetooth: hci_qca: Fix driver shutdown on closed serdev
CVE-2023-529137.8 HIGHdrm/i915: Fix potential context UAFs
CVE-2023-529097.5 HIGHnfsd: fix handling of cached open files in nfsd4_open codepath
CVE-2024-438727.5 HIGHRDMA/hns: Fix soft lockup under heavy CEQE load

Showing top 20 of 69 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-48894

No comments yet

Leave a comment