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CVE-2022-48883— net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent

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 net/mlx5e 组件在创建接口时应阻止PKEY接口的rx队列少于父接口。

CVSS 7.8 · High EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux be98737a4faa3a0dc1781ced5bbf5c47865e29d7< 5844a46f09f768da866d6b0ffbf1a9073266bf24 affected
be98737a4faa3a0dc1781ced5bbf5c47865e29d7< 31c70bfe58ef09fe36327ddcced9143a16e9e83d affected
5.17 affected
< 5.17 unaffected
6.1.7≤ 6.1.* unaffected
6.2≤ * unaffected
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I. Basic Information for CVE-2022-48883

Vulnerability Information
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Vulnerability Title
net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent A user is able to configure an arbitrary number of rx queues when creating an interface via netlink. This doesn't work for child PKEY interfaces because the child interface uses the parent receive channels. Although the child shares the parent's receive channels, the number of rx queues is important for the channel_stats array: the parent's rx channel index is used to access the child's channel_stats. So the array has to be at least as large as the parent's rx queue size for the counting to work correctly and to prevent out of bound accesses. This patch checks for the mentioned scenario and returns an error when trying to create the interface. The error is propagated to the user.
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 net/mlx5e 组件在创建接口时应阻止PKEY接口的rx队列少于父接口。
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 be98737a4faa3a0dc1781ced5bbf5c47865e29d7 ~ 5844a46f09f768da866d6b0ffbf1a9073266bf24 -
Linux Linux 5.17 -

II. Public POCs for CVE-2022-48883

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III. Intelligence Information for CVE-2022-48883

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Other References for CVE-2022-48883 (2)

Same Patch Batch · Linux · 2024-08-21 · 68 CVEs total

CVE-2022-48871 8.8 HIGH tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer
CVE-2023-52910 8.8 HIGH iommu/iova: Fix alloc iova overflows issue
CVE-2024-43881 8.8 HIGH wifi: ath12k: change DMA direction while mapping reinjected packets
CVE-2024-43878 8.1 HIGH xfrm: Fix input error path memory access
CVE-2023-52903 7.8 HIGH io_uring: lock overflowing for IOPOLL
CVE-2023-52913 7.8 HIGH drm/i915: Fix potential context UAFs
CVE-2024-43877 7.8 HIGH media: pci: ivtv: Add check for DMA map result
CVE-2022-48892 7.8 HIGH sched/core: Fix use-after-free bug in dup_user_cpus_ptr()
CVE-2024-43882 7.8 HIGH exec: Fix ToCToU between perm check and set-uid/gid usage
CVE-2023-52907 7.8 HIGH nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()
CVE-2022-48899 7.8 HIGH drm/virtio: Fix GEM handle creation UAF
CVE-2022-48878 7.8 HIGH Bluetooth: hci_qca: Fix driver shutdown on closed serdev
CVE-2022-48887 7.8 HIGH drm/vmwgfx: Remove rcu locks from user resources
CVE-2022-48872 7.8 HIGH misc: fastrpc: Fix use-after-free race condition for maps
CVE-2022-48873 7.8 HIGH misc: fastrpc: Don't remove map on creater_process and device_release
CVE-2022-48874 7.8 HIGH misc: fastrpc: Fix use-after-free and race in fastrpc_map_find
CVE-2024-43880 7.8 HIGH mlxsw: spectrum_acl_erp: Fix object nesting warning
CVE-2023-52909 7.5 HIGH nfsd: fix handling of cached open files in nfsd4_open codepath
CVE-2024-43872 7.5 HIGH RDMA/hns: Fix soft lockup under heavy CEQE load
CVE-2022-48896 ixgbe: fix pci device refcount leak

Showing top 20 of 68 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-48883

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