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CVE-2024-34027 High

f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock

In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock It needs to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock to avoid racing with checkpoint, otherwise, filesystem metadata including blkaddr in dnode, inode fields and .total_valid_block_count may be corrupted after SPO case.

Exploit probability 0.2%
Published June 24, 2024
Required by Not available
Last source change August 12, 2026

02 / AFFECTED SOFTWARE

Affected packages

Linux Kernel
Unknown Unknown

04 / EVIDENCE

Source records

Open Source Vulnerabilities CVE-2024-34027

In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock It needs to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock to avoid racing with checkpoint, otherwise, filesystem metadata including blkaddr in dnode, inode fields and .total_valid_block_count may be corrupted after SPO case.

View original source

05 / REFERENCES

Further evidence