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CVE-2022-48899— drm/virtio: Fix GEM handle creation UAF

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 drm/virtio 组件存在GEM句柄创建时的释放后重用问题。

CVSS 7.8 · High EPSS 0.24% · P15

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257< 19ec87d06acfab2313ee82b2a689bf0c154e57ea affected
62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257< d01d6d2b06c0d8390adf8f3ba08aa60b5642ef73 affected
62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257< 68bcd063857075d2f9edfed6024387ac377923e2 affected
62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257< 011ecdbcd520c90c344b872ca6b4821f7783b2f8 affected
62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257< adc48e5e408afbb01d261bd303fd9fbbbaa3e317 affected
62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257< 52531258318ed59a2dc5a43df2eaf0eb1d65438e affected
4.4 affected
< 4.4 unaffected
… +6 more rows
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I. Basic Information for CVE-2022-48899

Vulnerability Information
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Vulnerability Title
drm/virtio: Fix GEM handle creation UAF
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fix GEM handle creation UAF Userspace can guess the handle value and try to race GEM object creation with handle close, resulting in a use-after-free if we dereference the object after dropping the handle's reference. For that reason, dropping the handle's reference must be done *after* we are done dereferencing the object.
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 drm/virtio 组件存在GEM句柄创建时的释放后重用问题。
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 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 ~ 19ec87d06acfab2313ee82b2a689bf0c154e57ea -
Linux Linux 4.4 -

II. Public POCs for CVE-2022-48899

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III. Intelligence Information for CVE-2022-48899

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Other References for CVE-2022-48899 (6)

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

CVE-2024-43881 8.8 HIGH wifi: ath12k: change DMA direction while mapping reinjected packets
CVE-2023-52910 8.8 HIGH iommu/iova: Fix alloc iova overflows issue
CVE-2022-48871 8.8 HIGH tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer
CVE-2024-43878 8.1 HIGH xfrm: Fix input error path memory access
CVE-2022-48883 7.8 HIGH net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent
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-2024-43880 7.8 HIGH mlxsw: spectrum_acl_erp: Fix object nesting warning
CVE-2024-43882 7.8 HIGH exec: Fix ToCToU between perm check and set-uid/gid usage
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-2023-52903 7.8 HIGH io_uring: lock overflowing for IOPOLL
CVE-2022-48887 7.8 HIGH drm/vmwgfx: Remove rcu locks from user resources
CVE-2022-48878 7.8 HIGH Bluetooth: hci_qca: Fix driver shutdown on closed serdev
CVE-2023-52907 7.8 HIGH nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()
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-2023-52914 io_uring/poll: add hash if ready poll request can't complete inline

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-2022-48899

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