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CVE-2024-42084— ftruncate: pass a signed offset

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，该漏洞源于在使用32位off_t的旧ftruncate函数系统调用时，在64位架构上以兼容模式调用时，未进行符号扩展。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 3f6d078d4accfff8b114f968259a060bfdc7c682< c329760749b5419769e57cb2be80955d2805f9c9 affected
3f6d078d4accfff8b114f968259a060bfdc7c682< f531d4bc6c5588d713359e42ed65e46816d841d8 affected
3f6d078d4accfff8b114f968259a060bfdc7c682< 84bf6b64a1a0dfc6de7e1b1c776d58d608e7865a affected
3f6d078d4accfff8b114f968259a060bfdc7c682< dbb226d81cd02cee140139c2369791e6f61f2007 affected
3f6d078d4accfff8b114f968259a060bfdc7c682< 5ae6af68410bdad6181ec82104bb9985a7a6a0fa affected
3f6d078d4accfff8b114f968259a060bfdc7c682< 836359247b0403e0634bfbc83e5bb8063fad287a affected
3f6d078d4accfff8b114f968259a060bfdc7c682< 930a4c369f74da26816eaaa71b5888d29b759c27 affected
3f6d078d4accfff8b114f968259a060bfdc7c682< 4b8e88e563b5f666446d002ad0dc1e6e8e7102b0 affected
… +10 more rows
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I. Basic Information for CVE-2024-42084

Vulnerability Information
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Vulnerability Title
ftruncate: pass a signed offset
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ftruncate: pass a signed offset The old ftruncate() syscall, using the 32-bit off_t misses a sign extension when called in compat mode on 64-bit architectures. As a result, passing a negative length accidentally succeeds in truncating to file size between 2GiB and 4GiB. Changing the type of the compat syscall to the signed compat_off_t changes the behavior so it instead returns -EINVAL. The native entry point, the truncate() syscall and the corresponding loff_t based variants are all correct already and do not suffer from this mistake.
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，该漏洞源于在使用32位off_t的旧ftruncate函数系统调用时，在64位架构上以兼容模式调用时，未进行符号扩展。
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 3f6d078d4accfff8b114f968259a060bfdc7c682 ~ c329760749b5419769e57cb2be80955d2805f9c9 -
Linux Linux 3.9 -

II. Public POCs for CVE-2024-42084

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III. Intelligence Information for CVE-2024-42084

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Other References for CVE-2024-42084 (7)

Same Patch Batch · Linux · 2024-07-29 · 121 CVEs total

CVE-2024-41081 9.8 CRITICAL ila: block BH in ila_output()
CVE-2024-41073 9.8 CRITICAL nvme: avoid double free special payload
CVE-2024-41040 9.8 CRITICAL net/sched: Fix UAF when resolving a clash
CVE-2024-41091 8.8 HIGH tun: add missing verification for short frame
CVE-2024-42083 8.8 HIGH ionic: fix kernel panic due to multi-buffer handling
CVE-2024-41062 8.8 HIGH bluetooth/l2cap: sync sock recv cb and release
CVE-2024-41046 8.8 HIGH net: ethernet: lantiq_etop: fix double free in detach
CVE-2024-41090 8.8 HIGH tap: add missing verification for short frame
CVE-2024-41057 7.8 HIGH cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()
CVE-2024-41041 7.8 HIGH udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port().
CVE-2024-42064 7.8 HIGH drm/amd/display: Skip pipe if the pipe idx not set properly
CVE-2024-41017 7.8 HIGH jfs: don't walk off the end of ealist
CVE-2024-41049 7.8 HIGH filelock: fix potential use-after-free in posix_lock_inode
CVE-2024-42066 7.8 HIGH drm/xe: Fix potential integer overflow in page size calculation
CVE-2024-41051 7.8 HIGH cachefiles: wait for ondemand_object_worker to finish when dropping object
CVE-2024-42067 7.8 HIGH bpf: Take return from set_memory_rox() into account with bpf_jit_binary_lock_ro()
CVE-2024-42068 7.8 HIGH bpf: Take return from set_memory_ro() into account with bpf_prog_lock_ro()
CVE-2024-42069 7.8 HIGH net: mana: Fix possible double free in error handling path
CVE-2024-42071 7.8 HIGH ionic: use dev_consume_skb_any outside of napi
CVE-2024-41064 7.8 HIGH powerpc/eeh: avoid possible crash when edev->pdev changes

Showing top 20 of 121 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-42084

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