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CVE-2024-26981— nilfs2: fix OOB in nilfs_set_de_type

AI Predicted 5.5 Difficulty: Moderate EPSS 0.27% · P19

Possible ATT&CK Techniques 1AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinux2ba466d74ed74f073257f86e61519cb8f8f46184< 054f29e9ca05be3906544c5f2a2c7321c30a4243affected
2ba466d74ed74f073257f86e61519cb8f8f46184< 90f43980ea6be4ad903e389be9a27a2a0018f1c8affected
2ba466d74ed74f073257f86e61519cb8f8f46184< 7061c7efbb9e8f11ce92d6b4646405ea2b0b4de1affected
2ba466d74ed74f073257f86e61519cb8f8f46184< bdbe483da21f852c93b22557b146bc4d989260f0affected
2ba466d74ed74f073257f86e61519cb8f8f46184< 897ac5306bbeb83e90c437326f7044c79a17c611affected
2ba466d74ed74f073257f86e61519cb8f8f46184< 2382eae66b196c31893984a538908c3eb7506ff9affected
2ba466d74ed74f073257f86e61519cb8f8f46184< 90823f8d9ecca3d5fa6b102c8e464c62f416975faffected
2ba466d74ed74f073257f86e61519cb8f8f46184< c4a7dc9523b59b3e73fd522c73e95e072f876b16affected
… +10 more rows
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I. Basic Information for CVE-2024-26981

Vulnerability Information
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Vulnerability Title
nilfs2: fix OOB in nilfs_set_de_type
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix OOB in nilfs_set_de_type The size of the nilfs_type_by_mode array in the fs/nilfs2/dir.c file is defined as "S_IFMT >> S_SHIFT", but the nilfs_set_de_type() function, which uses this array, specifies the index to read from the array in the same way as "(mode & S_IFMT) >> S_SHIFT". static void nilfs_set_de_type(struct nilfs_dir_entry *de, struct inode *inode) { umode_t mode = inode->i_mode; de->file_type = nilfs_type_by_mode[(mode & S_IFMT)>>S_SHIFT]; // oob } However, when the index is determined this way, an out-of-bounds (OOB) error occurs by referring to an index that is 1 larger than the array size when the condition "mode & S_IFMT == S_IFMT" is satisfied. Therefore, a patch to resize the nilfs_type_by_mode array should be applied to prevent OOB errors.
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，该漏洞源于引用比数组大小大1的索引会发生越界错误。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 2ba466d74ed74f073257f86e61519cb8f8f46184 ~ 054f29e9ca05be3906544c5f2a2c7321c30a4243 -
LinuxLinux 2.6.30 -

II. Public POCs for CVE-2024-26981

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III. Intelligence Information for CVE-2024-26981

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Mailing List Discussions for CVE-2024-26981 (2)

Other References for CVE-2024-26981 (7)

Same Patch Batch · Linux · 2024-05-01 · 159 CVEs total

CVE-2024-273889.8 CRITICALSUNRPC: fix some memleaks in gssx_dec_option_array
CVE-2024-269539.8 CRITICALnet: esp: fix bad handling of pages from page_pool
CVE-2024-269318.8 HIGHscsi: qla2xxx: Fix command flush on cable pull
CVE-2024-269908.8 HIGHKVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status
CVE-2024-270538.8 HIGHwifi: wilc1000: fix RCU usage in connect path
CVE-2024-269528.3 HIGHksmbd: fix potencial out-of-bounds when buffer offset is invalid
CVE-2024-270188.2 HIGHnetfilter: br_netfilter: skip conntrack input hook for promisc packets
CVE-2024-269368.2 HIGHksmbd: validate request buffer size in smb2_allocate_rsp_buf()
CVE-2024-269808.2 HIGHksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf
CVE-2024-269548.1 HIGHksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16()
CVE-2024-269947.8 HIGHspeakup: Avoid crash on very long word
CVE-2024-269667.8 HIGHclk: qcom: mmcc-apq8084: fix terminating of frequency table arrays
CVE-2024-269747.8 HIGHcrypto: qat - resolve race condition during AER recovery
CVE-2024-269767.8 HIGHKVM: Always flush async #PF workqueue when vCPU is being destroyed
CVE-2024-270627.8 HIGHnouveau: lock the client object tree.
CVE-2024-270617.8 HIGHcrypto: sun8i-ce - Fix use after free in unprepare
CVE-2024-269837.8 HIGHbootconfig: use memblock_free_late to free xbc memory to buddy
CVE-2024-270587.8 HIGHtmpfs: fix race on handling dquot rbtree
CVE-2024-270567.8 HIGHwifi: iwlwifi: mvm: ensure offloading TID queue exists
CVE-2024-270177.8 HIGHnetfilter: nft_set_pipapo: walk over current view on netlink dump

Showing top 20 of 159 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26981

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