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CVE-2024-46745— Input: uinput - reject requests with unreasonable number of slots

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，该漏洞源于未正确限制槽位数量。

AI Predicted 3.3 Difficulty: Easy EPSS 0.28% · P20

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 38e7afe96c7c0ad900824911c61fdb04078033dc< 9c6d189f0c1c59ba9a32326ec82a0b367a3cd47b affected
38e7afe96c7c0ad900824911c61fdb04078033dc< 597ff930296c4c8fc6b6a536884d4f1a7187ec70 affected
38e7afe96c7c0ad900824911c61fdb04078033dc< 51fa08edd80003db700bdaa099385c5900d27f4b affected
38e7afe96c7c0ad900824911c61fdb04078033dc< 9719687398dea8a6a12a10321a54dd75eec7ab2d affected
38e7afe96c7c0ad900824911c61fdb04078033dc< 61df76619e270a46fd427fbdeb670ad491c42de2 affected
38e7afe96c7c0ad900824911c61fdb04078033dc< a4858b00a1ec57043697fb935565fe267f161833 affected
38e7afe96c7c0ad900824911c61fdb04078033dc< d76fc0f0b18d49b7e721c9e4975ef4bffde2f3e7 affected
38e7afe96c7c0ad900824911c61fdb04078033dc< 206f533a0a7c683982af473079c4111f4a0f9f5e affected
… +10 more rows
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I. Basic Information for CVE-2024-46745

Vulnerability Information
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Vulnerability Title
Input: uinput - reject requests with unreasonable number of slots
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Input: uinput - reject requests with unreasonable number of slots When exercising uinput interface syzkaller may try setting up device with a really large number of slots, which causes memory allocation failure in input_mt_init_slots(). While this allocation failure is handled properly and request is rejected, it results in syzkaller reports. Additionally, such request may put undue burden on the system which will try to free a lot of memory for a bogus request. Fix it by limiting allowed number of slots to 100. This can easily be extended if we see devices that can track more than 100 contacts.
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，该漏洞源于未正确限制槽位数量。
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 38e7afe96c7c0ad900824911c61fdb04078033dc ~ 9c6d189f0c1c59ba9a32326ec82a0b367a3cd47b -
Linux Linux 2.6.36 -

II. Public POCs for CVE-2024-46745

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III. Intelligence Information for CVE-2024-46745

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Patches & Fixes for CVE-2024-46745 (1)

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-2024-46792 7.8 HIGH riscv: misaligned: Restrict user access to kernel memory
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-2024-46750 7.8 HIGH PCI: Add missing bridge lock to pci_bus_lock()
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-2024-46754 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-2024-46745

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