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CVE-2024-46739— uio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind

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，该漏洞源于空指针取消引用。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.27% · P19

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux ca3cda6fcf1e922213a0cc58e708ffb999151db3< 3d414b64ecf6fd717d7510ffb893c6f23acbf50e affected
ca3cda6fcf1e922213a0cc58e708ffb999151db3< f38f46da80a2ab7d1b2f8fcb444c916034a2dac4 affected
ca3cda6fcf1e922213a0cc58e708ffb999151db3< 1d8e020e51ab07e40f9dd00b52f1da7d96fec04c affected
ca3cda6fcf1e922213a0cc58e708ffb999151db3< 3005091cd537ef8cdb7530dcb2ecfba8d2ef475c affected
ca3cda6fcf1e922213a0cc58e708ffb999151db3< 2be373469be1774bbe03b0fa7e2854e65005b1cc affected
ca3cda6fcf1e922213a0cc58e708ffb999151db3< de6946be9c8bc7d2279123433495af7c21011b99 affected
ca3cda6fcf1e922213a0cc58e708ffb999151db3< 928e399e84f4e80307dce44e89415115c473275b affected
ca3cda6fcf1e922213a0cc58e708ffb999151db3< fb1adbd7e50f3d2de56d0a2bb0700e2e819a329e affected
… +10 more rows
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I. Basic Information for CVE-2024-46739

Vulnerability Information
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Vulnerability Title
uio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: uio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind For primary VM Bus channels, primary_channel pointer is always NULL. This pointer is valid only for the secondary channels. Also, rescind callback is meant for primary channels only. Fix NULL pointer dereference by retrieving the device_obj from the parent for the primary channel.
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，该漏洞源于空指针取消引用。
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 ca3cda6fcf1e922213a0cc58e708ffb999151db3 ~ 3d414b64ecf6fd717d7510ffb893c6f23acbf50e -
Linux Linux 4.16 -

II. Public POCs for CVE-2024-46739

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III. Intelligence Information for CVE-2024-46739

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Patches & Fixes for CVE-2024-46739 (3)

Same Patch Batch · Linux · 2024-09-18 · 85 CVEs total

CVE-2024-46717 9.8 CRITICAL net/mlx5e: SHAMPO, Fix incorrect page release
CVE-2024-46736 9.8 CRITICAL smb: client: fix double put of @cfile in smb2_rename_path()
CVE-2024-46796 9.8 CRITICAL smb: client: fix double put of @cfile in smb2_set_path_size()
CVE-2024-46755 8.8 HIGH wifi: mwifiex: Do not return unused priv in mwifiex_get_priv_by_id()
CVE-2024-46780 7.8 HIGH nilfs2: protect references to superblock parameters exposed in sysfs
CVE-2024-46788 7.8 HIGH tracing/osnoise: Use a cpumask to know what threads are kthreads
CVE-2024-46787 7.8 HIGH userfaultfd: fix checks for huge PMDs
CVE-2024-46734 7.8 HIGH btrfs: fix race between direct IO write and fsync when using same fd
CVE-2024-46738 7.8 HIGH VMCI: Fix use-after-free when removing resource in vmci_resource_remove()
CVE-2024-46741 7.8 HIGH misc: fastrpc: Fix double free of 'buf' in error path
CVE-2024-46746 7.8 HIGH HID: amd_sfh: free driver_data after destroying hid device
CVE-2024-46781 7.8 HIGH nilfs2: fix missing cleanup on rollforward recovery error
CVE-2024-46750 7.8 HIGH PCI: Add missing bridge lock to pci_bus_lock()
CVE-2024-46740 7.8 HIGH binder: fix UAF caused by offsets overwrite
CVE-2024-46751 7.8 HIGH btrfs: don't BUG_ON() when 0 reference count at btrfs_lookup_extent_info()
CVE-2024-46754 7.8 HIGH bpf: Remove tst_run from lwt_seg6local_prog_ops.
CVE-2024-46777 7.8 HIGH udf: Avoid excessive partition lengths
CVE-2024-46762 7.8 HIGH xen: privcmd: Fix possible access to a freed kirqfd instance
CVE-2024-46765 7.8 HIGH ice: protect XDP configuration with a mutex
CVE-2024-46771 7.8 HIGH can: bcm: Remove proc entry when dev is unregistered.

Showing top 20 of 85 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-46739

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