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.
Metrics
Affected Vendors & Products
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Fri, 23 Jan 2026 11:15:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-617 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:* | |
| Metrics |
cvssV3_1
|
cvssV3_1
|
Mon, 05 Jan 2026 19:45:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Thu, 02 Oct 2025 18:00:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Vendors & Products |
Linux
Linux linux Kernel |
Thu, 02 Oct 2025 09:15:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Wed, 01 Oct 2025 21:00:00 +0900
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-01-05T10:20:35.998Z
Reserved: 2025-09-17T14:54:09.754Z
Link: CVE-2023-53450
No data.
Status : Analyzed
Published: 2025-10-01T12:15:41.503
Modified: 2026-01-23T02:08:34.027
Link: CVE-2023-53450
OpenCVE Enrichment
Updated: 2025-10-02T17:39:37Z