CVE-2023-53450
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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 2.6.25 | 4.14.315 |
| linux / linux_kernel | 4.15 | 4.19.283 |
| linux / linux_kernel | 4.20 | 5.4.243 |
| linux / linux_kernel | 5.5 | 5.10.180 |
| linux / linux_kernel | 5.11 | 5.15.112 |
| linux / linux_kernel | 5.16 | 6.1.29 |
| linux / linux_kernel | 6.2 | 6.2.16 |
| linux / linux_kernel | 6.3 | 6.3.3 |
| linux / linux_kernel | 6.4-rc1 | 6.4-rc1.x |
- https://git.kernel.org/stable/c/185062a21976fbc38f2efd296951b02c4500cf65
- https://git.kernel.org/stable/c/463808f237cf73e98a1a45ff7460c2406a150a0b
- https://git.kernel.org/stable/c/53c14e7cc2257191ba15425c15638fc4f8abb92b
- https://git.kernel.org/stable/c/978e5e9111af18741449b81fefd531a622dd969a
- https://git.kernel.org/stable/c/b0fc279de4bf17e1710bb7e83906538ff8f11111
- https://git.kernel.org/stable/c/bf2a16eb4e6d06124bd8436d4546f61539a65f29
- https://git.kernel.org/stable/c/d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5b
- https://git.kernel.org/stable/c/d87a4e4094c9879fc8acdff8ce59fdffa979c8e0
- https://git.kernel.org/stable/c/ef16d8a1798db1a1604ac44ca1bd73ec6bebf483
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