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CVE-2023-52682

20
FAUCET Score

CVE-2023-52682 is a Linux kernel vulnerability in the F2FS file system that affects compressed but unencrypted inodes. It stems from a missed call to f2fs_wait_on_block_writeback(), leading to a race condition where old data can overwrite new data during garbage collection and common I/O operations. Rated 7.1 HIGH (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H), this local vulnerability allows an authenticated attacker to achieve high confidentiality and availability impacts. There is currently no public exploit code available, no evidence of active exploitation, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.6, < 6.1.75CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.6.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.7, < 6.7.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.23%
Probability of exploitation in next 30 days
EPSS Percentile
14.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0023 is in the 45th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra-5.15 (focal)Fixed in: 5.15.0-1064.66~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-hwe-5.15 (focal)Fixed in: 5.15.0-186.196~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency-hwe-5.15 (focal)Fixed in: 5.15.0-184.194~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux (jammy)Fixed in: 5.15.0-186.196
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp (jammy)Fixed in: 5.15.0-1112.122
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-fips (jammy)Fixed in: 5.15.0-1112.122+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-gke (jammy)Fixed in: 5.15.0-1108.114
ubuntupatch availablevia ubuntu_usn
Product: linux-gkeop (jammy)Fixed in: 5.15.0-1095.103
ubuntupatch availablevia ubuntu_usn
Product: linux-kvm (jammy)Fixed in: 5.15.0-1104.109
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency (jammy)Fixed in: 5.15.0-184.194
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime (jammy)Fixed in: 5.15.0-1111.120
ubuntupatch availablevia ubuntu_usn
Product: linux-xilinx-zynqmp (jammy)Fixed in: 5.15.0-1075.79
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-fde (jammy)Fixed in: 5.15.0-1117.126
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (jammy)Fixed in: 5.15.0-1117.126
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle (jammy)Fixed in: 5.15.0-1109.115

Vendor Advisories (6)

ubuntuUSN-8610-1

Linux kernel (Azure CVM) vulnerabilities

Jul 24, 2026
ubuntuUSN-8575-3

Linux kernel vulnerabilities

Jul 24, 2026
ubuntuUSN-8576-1

Linux kernel (NVIDIA Tegra) vulnerabilities

Jul 21, 2026
ubuntuUSN-8575-1

Linux kernel vulnerabilities

Jul 21, 2026
redhatCVE-2023-52682Moderate

kernel: f2fs: fix to wait on block writeback for post_read case

May 17, 2024
microsoft2024-May/CVE-2023-52682Moderate

f2fs: fix to wait on block writeback for post_read case

May 14, 2024

References

git.kernel.org / stable/c/2bfe8fdb674f71747553a65f2ef27e14c8880655
git.kernel.org / stable/c/4535be48780431753505e74e1b1ad4836a189bc2
Patch
git.kernel.org / stable/c/55fdc1c24a1d6229fe0ecf31335fb9a2eceaaa00
Patch
git.kernel.org / stable/c/9bfd5ea71521d0e522ba581c6ccc5db93759c0c3
Patch
git.kernel.org / stable/c/f904c156d8011d8291ffd5b6b398f3747e294986
Patch