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CVE-2022-48804— vt_ioctl: fix array_index_nospec in vt_setactivate

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vt_ioctl模块中发现数组索引越界问题。vt_setactivate中的array_index_nospec确保越界值在瞬态路径上设置为零，但随后的值减一操作导致瞬态整数下溢。

AI Predicted 5.5 Difficulty: Hard EPSS 0.31% · P23

Affected Version Matrix 26

VendorProduct Version RangeStatus
Linux Linux 0ec459ec174031fad02a55e622cf2fc0d2e75a25< 830c5aa302ec16b4ee641aec769462c37f802c90 affected
4334a6ae867aa12f01c1755368fd0de4c926ac75< 2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0 affected
e97267cb4d1ee01ca0929638ec0fcbb0904f903d< 170325aba4608bde3e7d21c9c19b7bc266ac0885 affected
e97267cb4d1ee01ca0929638ec0fcbb0904f903d< ae3d57411562260ee3f4fd5e875f410002341104 affected
e97267cb4d1ee01ca0929638ec0fcbb0904f903d< 778302ca09498b448620edd372dc908bebf80bdf affected
e97267cb4d1ee01ca0929638ec0fcbb0904f903d< ffe54289b02e9c732d6f04c8ebbe3b2d90d32118 affected
e97267cb4d1ee01ca0929638ec0fcbb0904f903d< 6550bdf52846f85a2a3726a5aa0c7c4399f2fc02 affected
e97267cb4d1ee01ca0929638ec0fcbb0904f903d< 61cc70d9e8ef5b042d4ed87994d20100ec8896d9 affected
… +18 more rows
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I. Basic Information for CVE-2022-48804

Vulnerability Information
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Vulnerability Title
vt_ioctl: fix array_index_nospec in vt_setactivate
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: vt_ioctl: fix array_index_nospec in vt_setactivate array_index_nospec ensures that an out-of-bounds value is set to zero on the transient path. Decreasing the value by one afterwards causes a transient integer underflow. vsa.console should be decreased first and then sanitized with array_index_nospec. Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU Amsterdam.
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vt_ioctl模块中发现数组索引越界问题。vt_setactivate中的array_index_nospec确保越界值在瞬态路径上设置为零，但随后的值减一操作导致瞬态整数下溢。
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 0ec459ec174031fad02a55e622cf2fc0d2e75a25 ~ 830c5aa302ec16b4ee641aec769462c37f802c90 -
Linux Linux 4.19 -

II. Public POCs for CVE-2022-48804

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III. Intelligence Information for CVE-2022-48804

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Other References for CVE-2022-48804 (8)

Same Patch Batch · Linux · 2024-07-16 · 98 CVEs total

CVE-2022-48790 9.8 CRITICAL nvme: fix a possible use-after-free in controller reset during load
CVE-2022-48789 9.8 CRITICAL nvme-tcp: fix possible use-after-free in transport error_recovery work
CVE-2022-48788 9.8 CRITICAL nvme-rdma: fix possible use-after-free in transport error_recovery work
CVE-2022-48851 9.8 CRITICAL staging: gdm724x: fix use after free in gdm_lte_rx()
CVE-2022-48829 9.1 CRITICAL NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes
CVE-2022-48828 9.1 CRITICAL NFSD: Fix ia_size underflow
CVE-2022-48864 8.8 HIGH vdpa/mlx5: add validation for VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET command
CVE-2022-48830 8.8 HIGH can: isotp: fix potential CAN frame reception race in isotp_rcv()
CVE-2022-48782 8.8 HIGH mctp: fix use after free
CVE-2022-48785 8.8 HIGH ipv6: mcast: use rcu-safe version of ipv6_get_lladdr()
CVE-2022-48786 7.8 HIGH vsock: remove vsock from connected table when connect is interrupted by a signal
CVE-2022-48839 7.8 HIGH net/packet: fix slab-out-of-bounds access in packet_recvmsg()
CVE-2022-48779 7.8 HIGH net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()
CVE-2022-48821 7.8 HIGH misc: fastrpc: avoid double fput() on failed usercopy
CVE-2022-48822 7.8 HIGH usb: f_fs: Fix use-after-free for epfile
CVE-2022-48816 7.8 HIGH SUNRPC: lock against ->sock changing during sysfs read
CVE-2022-48792 7.8 HIGH scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task
CVE-2022-48796 7.8 HIGH iommu: Fix potential use-after-free during probe
CVE-2022-48787 7.8 HIGH iwlwifi: fix use-after-free
CVE-2022-48791 7.8 HIGH scsi: pm8001: Fix use-after-free for aborted TMF sas_task

Showing top 20 of 98 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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