CVE-2023-53450
ext4: remove a BUG_ON in ext4_mb_release_group_pa()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 1, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
c9de560ded61faa5b754137b7753da252391c55a < d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5b c9de560ded61faa5b754137b7753da252391c55a < ef16d8a1798db1a1604ac44ca1bd73ec6bebf483 c9de560ded61faa5b754137b7753da252391c55a < 185062a21976fbc38f2efd296951b02c4500cf65 c9de560ded61faa5b754137b7753da252391c55a < b0fc279de4bf17e1710bb7e83906538ff8f11111 c9de560ded61faa5b754137b7753da252391c55a < 978e5e9111af18741449b81fefd531a622dd969a c9de560ded61faa5b754137b7753da252391c55a < d87a4e4094c9879fc8acdff8ce59fdffa979c8e0 c9de560ded61faa5b754137b7753da252391c55a < bf2a16eb4e6d06124bd8436d4546f61539a65f29 c9de560ded61faa5b754137b7753da252391c55a < 53c14e7cc2257191ba15425c15638fc4f8abb92b c9de560ded61faa5b754137b7753da252391c55a < 463808f237cf73e98a1a45ff7460c2406a150a0b
Linux / Linux
2.6.25
References
git.kernel.org: https://git.kernel.org/stable/c/d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5b git.kernel.org: https://git.kernel.org/stable/c/ef16d8a1798db1a1604ac44ca1bd73ec6bebf483 git.kernel.org: https://git.kernel.org/stable/c/185062a21976fbc38f2efd296951b02c4500cf65 git.kernel.org: https://git.kernel.org/stable/c/b0fc279de4bf17e1710bb7e83906538ff8f11111 git.kernel.org: https://git.kernel.org/stable/c/978e5e9111af18741449b81fefd531a622dd969a git.kernel.org: https://git.kernel.org/stable/c/d87a4e4094c9879fc8acdff8ce59fdffa979c8e0 git.kernel.org: https://git.kernel.org/stable/c/bf2a16eb4e6d06124bd8436d4546f61539a65f29 git.kernel.org: https://git.kernel.org/stable/c/53c14e7cc2257191ba15425c15638fc4f8abb92b git.kernel.org: https://git.kernel.org/stable/c/463808f237cf73e98a1a45ff7460c2406a150a0b