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Medium severity5.5NVD Advisory· Published Oct 1, 2025· Updated Jun 17, 2026

CVE-2023-53450

CVE-2023-53450

Description

In the Linux kernel, the following vulnerability has been resolved:

ext4: remove a BUG_ON in ext4_mb_release_group_pa()

If a malicious fuzzer overwrites the ext4 superblock while it is mounted such that the s_first_data_block is set to a very large number, the calculation of the block group can underflow, and trigger a BUG_ON check. Change this to be an ext4_warning so that we don't crash the kernel.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

6
  • Linux/Kernelllm-fuzzy4 versions
    (expand)+ 3 more
    • (no CPE)
    • (no CPE)range: 2.6.25
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.25,<4.14.315
    • cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:*
  • Linux/ext4llm-fuzzy
  • osv-coords
    pkg:linux/kernel
    Range: >= 2.6.25, < 4.14.315

Patches

Vulnerability mechanics

References

9

News mentions

0

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