CVE-2024-42295
CVE-2024-42295 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (14th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-39518
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: handle inconsistent state in nilfs_btnode_create_block() Syzbot reported that a buffer state inconsistency was detected in nilfs_btnode_create_block(), triggering a kernel bug. It is not appropriate to treat this inconsistency as a bug; it can occur if the argument block address (the buffer index of the newly created block) is a virtual block number and has been reallocated due to corruption of the bitmap used to manage its allocation state. So, modify nilfs_btnode_create_block() and its callers to treat it as a possible filesystem error, rather than triggering a kernel bug.
Frequently asked questions
- What is CVE-2024-42295?
- In the Linux kernel, the following vulnerability has been resolved: nilfs2: handle inconsistent state in nilfs_btnode_create_block() Syzbot reported that a buffer state inconsistency was detected in nilfs_btnode_create_block(), triggering a kernel bug. It is not appropriate to treat this inconsistency as a bug; it can occur if the argument block address (the buffer index of the newly created block) is a virtual block number and has been reallocated due to corruption of the bitmap used to manage its allocation state. So, modify nilfs_btnode_create_block() and its callers to treat it as a possible filesystem error, rather than triggering a kernel bug.
- How severe is CVE-2024-42295?
- CVE-2024-42295 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2024-42295 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-42295?
- CVE-2024-42295 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-42295?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-42295 have an EU (EUVD) identifier?
- Yes. CVE-2024-42295 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-39518.
- When was CVE-2024-42295 published?
- CVE-2024-42295 was published on 2024-08-17 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/012be828a118bf496e666ef1fc47fc0e7358ada2
- https://git.kernel.org/stable/c/02b87e6334a38c65eef49848d3f1ac422f0b2a44
- https://git.kernel.org/stable/c/19cce46238ffe3546e44b9c74057103ff8b24c62
- https://git.kernel.org/stable/c/366c3f688dd0288cbe38af1d3a886b5c62372e4a
- https://git.kernel.org/stable/c/4811f7af6090e8f5a398fbdd766f903ef6c0d787
- https://git.kernel.org/stable/c/5f0a6800b8aec1b453c7fe4c44fcaac5ffe9d52e
- https://git.kernel.org/stable/c/be56dfc9be0604291267c07b0e27a69a6bda4899
- https://git.kernel.org/stable/c/e34191cce3ee63dfa5fb241904aaf2a042d5b6d8
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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