ext4: add i_data_sem protection in ext4_destroy_inline_data_nolock()

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CVE-2025-68261

In the Linux kernel, the following vulnerability has been resolved: ext4: add idatasem protection in ext4destroyinlinedatanolock Fix a race between inline data destruction and block mapping. The function ext4destroyinlinedatanolock changes the inode data layout by clearing EXT4INODEINLINEDATA and...

CVE-2025-68261

CVE-2025-68261 concerns a race in ext4 where inline data destruction (ext4_destroy_inline_data_nolock) and block mapping (ext4_map_blocks) can concurrently modify inode layout, causing a state where EXT4_INODE_EXTENTS flag is observed incorrectly and triggers a kernel BUG in fs/ext4/indirect.c (l...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from ext4destroyinlinedatanolock missing idatasem protection in ext4...

UBUNTU-CVE-2024-50006

In the Linux kernel, the following vulnerability has been resolved: ext4: fix idatasem unlock order in ext4indmigrate Fuzzing reports a possible deadlock in jbd2logwaitcommit. This issue is triggered when an EXT4IOCMIGRATE ioctl is set to require synchronous updates because the file descriptor is...