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CVE-2024-41034— nilfs2: fix kernel bug on rename operation of broken directory

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nilfs2上重命名损坏的目录时，nilfs_dotdot函数可能返回超出folio/page大小的位置。

CVSS 7.8 · High EPSS 0.32% · P24

Possible ATT&CK Techniques 2 AI

T1001 · Data Obfuscation T1562

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 2ba466d74ed74f073257f86e61519cb8f8f46184< ff9767ba2cb949701e45e6e4287f8af82986b703 affected
2ba466d74ed74f073257f86e61519cb8f8f46184< 24c1c8566a9b6be51f5347be2ea76e25fc82b11e affected
2ba466d74ed74f073257f86e61519cb8f8f46184< a9a466a69b85059b341239766a10efdd3ee68a4b affected
2ba466d74ed74f073257f86e61519cb8f8f46184< 7000b438dda9d0f41a956fc9bffed92d2eb6be0d affected
2ba466d74ed74f073257f86e61519cb8f8f46184< 1a8879c0771a68d70ee2e5e66eea34207e8c6231 affected
2ba466d74ed74f073257f86e61519cb8f8f46184< 60f61514374e4a0c3b65b08c6024dd7e26150bfd affected
2ba466d74ed74f073257f86e61519cb8f8f46184< 298cd810d7fb687c90a14d8f9fd1b8719a7cb8a5 affected
2ba466d74ed74f073257f86e61519cb8f8f46184< a9e1ddc09ca55746079cc479aa3eb6411f0d99d4 affected
… +10 more rows
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I. Basic Information for CVE-2024-41034

Vulnerability Information
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Vulnerability Title
nilfs2: fix kernel bug on rename operation of broken directory
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix kernel bug on rename operation of broken directory Syzbot reported that in rename directory operation on broken directory on nilfs2, __block_write_begin_int() called to prepare block write may fail BUG_ON check for access exceeding the folio/page size. This is because nilfs_dotdot(), which gets parent directory reference entry ("..") of the directory to be moved or renamed, does not check consistency enough, and may return location exceeding folio/page size for broken directories. Fix this issue by checking required directory entries ("." and "..") in the first chunk of the directory in nilfs_dotdot().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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nilfs2上重命名损坏的目录时，nilfs_dotdot函数可能返回超出folio/page大小的位置。
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 2ba466d74ed74f073257f86e61519cb8f8f46184 ~ ff9767ba2cb949701e45e6e4287f8af82986b703 -
Linux Linux 2.6.30 -

II. Public POCs for CVE-2024-41034

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III. Intelligence Information for CVE-2024-41034

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Other References for CVE-2024-41034 (8)

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

CVE-2024-41040 9.8 CRITICAL net/sched: Fix UAF when resolving a clash
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-2024-41091 8.8 HIGH tun: add missing verification for short frame
CVE-2024-41090 8.8 HIGH tap: add missing verification for short frame
CVE-2024-41046 8.8 HIGH net: ethernet: lantiq_etop: fix double free in detach
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-2024-41045 7.8 HIGH bpf: Defer work in bpf_timer_cancel_and_free
CVE-2024-41051 7.8 HIGH cachefiles: wait for ondemand_object_worker to finish when dropping object
CVE-2024-41049 7.8 HIGH filelock: fix potential use-after-free in posix_lock_inode
CVE-2024-41057 7.8 HIGH cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()
CVE-2024-41060 7.8 HIGH drm/radeon: check bo_va->bo is non-NULL before using it
CVE-2024-41059 7.8 HIGH hfsplus: fix uninit-value in copy_name
CVE-2024-42075 7.8 HIGH bpf: Fix remap of arena.
CVE-2024-41064 7.8 HIGH powerpc/eeh: avoid possible crash when edev->pdev changes
CVE-2024-42072 7.8 HIGH bpf: Fix may_goto with negative offset.
CVE-2024-42064 7.8 HIGH drm/amd/display: Skip pipe if the pipe idx not set properly
CVE-2024-41086 7.8 HIGH bcachefs: Fix sb_field_downgrade validation
CVE-2024-41087 7.8 HIGH ata: libata-core: Fix double free on error

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-2024-41034

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