CVE-2024-50202
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.
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
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 The current interface of nilfs_find_entry() and its callers is outdated and cannot propagate error codes such as -EIO and -ENOMEM returned via nilfs_find_entry(), so fix it together.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-755
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/08cfa12adf888db98879dbd735bc741360a34168Patch
- https://git.kernel.org/stable/c/270a6f9df35fa2aea01ec23770dc9b3fc9a12989Patch
- https://git.kernel.org/stable/c/9698088ac7704e260f492d9c254e29ed7dd8729aPatch
- https://git.kernel.org/stable/c/b4b3dc9e7e604be98a222e9f941f5e93798ca475Patch
- https://git.kernel.org/stable/c/bb857ae1efd3138c653239ed1e7aef14e1242c81Patch
- https://git.kernel.org/stable/c/c1d0476885d708a932980b0f28cd90d9bd71db39Patch
- https://git.kernel.org/stable/c/edf8146057264191d5bfe5b91773f13d936dadd3Patch
- https://git.kernel.org/stable/c/efa810b15a25531cbc2f527330947b9fe16916e7Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.