CVE-2024-50202
Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: propagate directory read errors from nilfs_find_entry() Syzbot reported that a task hang occurs in vcs_open() during a fuzzing test for nilfs2. The root cause of this problem is that in nilfs_find_entry(), which searches for directory entries, ignores errors when loading a directory page/folio via nilfs_get_folio() fails. If the filesystem images is corrupted, and the i_size of the directory inode is large, and the directory page/folio is successfully read but fails the sanity check, for example when it is zero-filled, nilfs_check_folio() may continue to spit out error messages in bursts. Fix this issue by propagating the error to the callers when loading a page/folio fails in nilfs_find_entry(). The current interface of nilfs_find_entry() and its callers is outdated and cannot propagate error codes such as -EIO and -ENOMEM returned via nilfs_find_entry(), so fix it together.
How to fix
- linux linux_kernel4.19.323, 5.4.285, 5.10.228, 5.15.169, 6.1.114, 6.6.58, 6.11.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.30 ≤ v < 4.19.323, 4.20 ≤ v < 5.4.285, 5.5 ≤ v < 5.10.228, 5.11 ≤ v < 5.15.169, 5.16 ≤ v < 6.1.114, 6.2 ≤ v < 6.6.58, 6.7 ≤ v < 6.11.5, 6.12 | 4.19.323, 5.4.285, 5.10.228, 5.15.169, 6.1.114, 6.6.58, 6.11.5 |
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