nilfs2: protect references to superblock parameters exposed in sysfs
Priority LOW 34Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: nilfs2: protect references to superblock parameters exposed in sysfs The superblock buffers of nilfs2 can not only be overwritten at runtime for modifications/repairs, but they are also regularly swapped, replaced during resizing, and even abandoned when degrading to one side due to backing device issues. So, accessing them requires mutual exclusion using the reader/writer semaphore "nilfs->ns_sem". Some sysfs attribute show methods read this superblock buffer without the necessary mutual exclusion, which can cause problems with pointer dereferencing and memory access, so fix it.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00238 14th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 4.19.322, 5.4.284, 5.10.226 +5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.17 and later | 4.19.322, 5.4.284, 5.10.226, 5.15.167, 6.1.110, 6.6.51, 6.10.10, 6.11 | Patch available | CNA |
- Linux VendorLinux Affected 3.17 and later Fixed in 4.19.322, 5.4.284, 5.10.226, 5.15.167, 6.1.110, 6.6.51, 6.10.10, 6.11 Patch available CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.17 to before 4.19.322; 4.20 to before 5.4.284; 5.5 to before 5.10.226; 5.11 to before 5.15.167; 5.16 to before 6.1.110; 6.2 to before 6.6.51; 6.7 to before 6.10.10 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:* | 6.11 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:* | 6.11 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:* | 6.11 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:* | 6.11 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:* | 6.11 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:* | 6.11 rc6 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.17 to before 4.19.322; 4.20 to before 5.4.284; 5.5 to before 5.10.226; 5.11 to before 5.15.167; 5.16 to before 6.1.110; 6.2 to before 6.6.51; 6.7 to before 6.10.10 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:* Versions 6.11 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:* Versions 6.11 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:* Versions 6.11 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:* Versions 6.11 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:* Versions 6.11 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:* Versions 6.11 rc6 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.19.322, 5.4.284, 5.10.226, 5.15.167, 6.1.110, 6.6.51, 6.10.10, 6.11
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-46780
- 2026-10-03 Alias added: GHSA-cfpv-586j-2mfm
References
Patch 8
- https://git.kernel.org/stable/c/b90beafac05931cbfcb6b1bd4f67c1923f47040e
- https://git.kernel.org/stable/c/ba97ba173f9625d5f34a986088979eae8b80d38e
- https://git.kernel.org/stable/c/157c0d94b4c40887329418c70ef4edd1a8d6b4ed
- https://git.kernel.org/stable/c/b14e7260bb691d7f563f61da07d61e3c8b59a614
- https://git.kernel.org/stable/c/19cfeba0e4b8eda51484fcf8cf7d150418e1d880
- https://git.kernel.org/stable/c/8c6e43b3d5f109cf9c61bc188fcc8175404e924f
- https://git.kernel.org/stable/c/962562d4c70c5cdeb4e955d63ff2017c4eca1aad
- https://git.kernel.org/stable/c/683408258917541bdb294cd717c210a04381931e
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Sources
- CVE-2024-46780 · CVE Program
- CVE-2024-46780 · NVD
- FIRST EPSS
- GHSA-cfpv-586j-2mfm · GitHub Advisory Database · CC BY 4.0
- CVE-2024-46780 · Red Hat security data · CC BY 4.0
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