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Review reviewHigh

CVE-2023-54151

Linux

In the Linux kernel, the following vulnerability has been resolved: f2fs: Fix system crash due to lack of free space in LFS When f2fs tries to checkpoint during foreground gc in LFS mode, system crash occurs due to lack of free space if the amount of dirty node and dentry pages generated by data migration exceeds free space. The reproduction sequence is as follows. - 20GiB capacity block device (null_blk) - format and mount with LFS mode - create a file and write 20,000MiB - 4k random write on full range of the file RIP: 0010:new_curseg+0x48a/0x510 [f2fs] Code: 55 e7 f5 89 c0 48 0f af c3 48...

CVSS
7.8
EPSS
0.13%
3.18% percentile
CISA KEV
Not listed
Published
2025.12.24
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.13%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: f2fs: Fix system crash due to lack of free space in LFS When f2fs tries to checkpoint during foreground gc in LFS mode, system crash occurs due to lack of free space if the amount of dirty node and dentry pages generated by data migration exceeds free space. The reproduction sequence is as follows. - 20GiB capacity block device (null_blk) - format and mount with LFS mode - create a file and write 20,000MiB - 4k random write on full range of the file RIP: 0010:new_curseg+0x48a/0x510 [f2fs] Code: 55 e7 f5 89 c0 48 0f af c3 48...

Affected product and versions

Product
Linux
Affected versions
>= a9163b947ae8f7af7cb8d63606cd87b9facbfe74 < f4631d295ae3fff9e240ab78dc17f4b83d14f7bc, >= a9163b947ae8f7af7cb8d63606cd87b9facbfe74 < ce71c61d661cfac3f097af928995abfcebd2b8c5, >= a9163b947ae8f7af7cb8d63606cd87b9facbfe74 < d11cef14f8146f3babd286c2cc8ca09c166295e2, >= ec769406d06d5006c40554c4640f6e584ab6ae26, >= 8102416c05bb08795b9278a8664f9be827fadbe2, >= 938166b2b3051d9965c36f9b5228966d4f198b2a, >= 5.10.137 < 5.11, >= 5.15.150 < 5.16, >= 5.18.18 < 5.19, >= 5.19
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available
CVE-2023-54151 — Linux | SECUFOCUS NOW