CVE - CVE-2024-26981

CVE-ID
CVE-2024-26981	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/054f29e9ca05be3906544c5f2a2c7321c30a4243 URL:https://git.kernel.org/stable/c/054f29e9ca05be3906544c5f2a2c7321c30a4243 MISC:https://git.kernel.org/stable/c/2382eae66b196c31893984a538908c3eb7506ff9 URL:https://git.kernel.org/stable/c/2382eae66b196c31893984a538908c3eb7506ff9 MISC:https://git.kernel.org/stable/c/7061c7efbb9e8f11ce92d6b4646405ea2b0b4de1 URL:https://git.kernel.org/stable/c/7061c7efbb9e8f11ce92d6b4646405ea2b0b4de1 MISC:https://git.kernel.org/stable/c/897ac5306bbeb83e90c437326f7044c79a17c611 URL:https://git.kernel.org/stable/c/897ac5306bbeb83e90c437326f7044c79a17c611 MISC:https://git.kernel.org/stable/c/90823f8d9ecca3d5fa6b102c8e464c62f416975f URL:https://git.kernel.org/stable/c/90823f8d9ecca3d5fa6b102c8e464c62f416975f MISC:https://git.kernel.org/stable/c/90f43980ea6be4ad903e389be9a27a2a0018f1c8 URL:https://git.kernel.org/stable/c/90f43980ea6be4ad903e389be9a27a2a0018f1c8 MISC:https://git.kernel.org/stable/c/bdbe483da21f852c93b22557b146bc4d989260f0 URL:https://git.kernel.org/stable/c/bdbe483da21f852c93b22557b146bc4d989260f0 MISC:https://git.kernel.org/stable/c/c4a7dc9523b59b3e73fd522c73e95e072f876b16 URL:https://git.kernel.org/stable/c/c4a7dc9523b59b3e73fd522c73e95e072f876b16
Assigning CNA
kernel.org
Date Record Created
20240219	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240219)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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