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CVE-2024-46774— powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()

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，该漏洞源于未正确处理用户输入。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.24% · P16

Possible ATT&CK Techniques 1 AI

T1207 · Rogue Domain Controller

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< d2834ff1d9641a8695a09ea79cd901c7b6d4d05f affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< a262c2dc833f2fe1bd5c53a4d899e7077d3b1da9 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< b137af795399d8b657bad1646c18561530f35ed1 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 1f1feff02e9da0dd0cdb195c428c42b5f9b6c771 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 68d8156480940b79227d58865ec5d2947b9384a8 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 0974d03eb479384466d828d65637814bee6b26d7 affected
2.6.12 affected
< 2.6.12 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-46774

Vulnerability Information
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Vulnerability Title
powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas() Smatch warns: arch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() warn: potential spectre issue 'args.args' [r] (local cap) The 'nargs' and 'nret' locals come directly from a user-supplied buffer and are used as indexes into a small stack-based array and as inputs to copy_to_user() after they are subject to bounds checks. Use array_index_nospec() after the bounds checks to clamp these values for speculative execution.
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，该漏洞源于未正确处理用户输入。
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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ d2834ff1d9641a8695a09ea79cd901c7b6d4d05f -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2024-46774

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III. Intelligence Information for CVE-2024-46774

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Patches & Fixes for CVE-2024-46774 (4)

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-2024-46750 7.8 HIGH PCI: Add missing bridge lock to pci_bus_lock()
CVE-2024-46725 7.8 HIGH drm/amdgpu: Fix out-of-bounds write warning
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-2024-46740 7.8 HIGH binder: fix UAF caused by offsets overwrite
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-2024-46780 7.8 HIGH nilfs2: protect references to superblock parameters exposed in sysfs
CVE-2024-46741 7.8 HIGH misc: fastrpc: Fix double free of 'buf' in error path
CVE-2024-46751 7.8 HIGH btrfs: don't BUG_ON() when 0 reference count at btrfs_lookup_extent_info()
CVE-2024-46777 7.8 HIGH udf: Avoid excessive partition lengths
CVE-2024-46754 7.8 HIGH bpf: Remove tst_run from lwt_seg6local_prog_ops.
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-2024-46774

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