In the Linux kernel, the following vulnerability has been resolved:
ext4: fix potential out of bound read in ext4_fc_replay_scan()
For scan loop must ensure that at least EXT4_FC_TAG_BASE_LEN space. If remain
space less than EXT4_FC_TAG_BASE_LEN which will lead to out of bound read
when mounting corrupt file system image.
ADD_RANGE/HEAD/TAIL is needed to add extra check when do journal scan, as this
three tags will read data during scan, tag length couldn't less than data length
which will read.
Metrics
Affected Vendors & Products
References
History
Wed, 17 Sep 2025 11:00:00 +0000
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First Time appeared |
Linux
Linux linux Kernel |
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Vendors & Products |
Linux
Linux linux Kernel |
Tue, 16 Sep 2025 00:15:00 +0000
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References |
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Metrics |
threat_severity
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cvssV3_1
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Mon, 15 Sep 2025 15:00:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential out of bound read in ext4_fc_replay_scan() For scan loop must ensure that at least EXT4_FC_TAG_BASE_LEN space. If remain space less than EXT4_FC_TAG_BASE_LEN which will lead to out of bound read when mounting corrupt file system image. ADD_RANGE/HEAD/TAIL is needed to add extra check when do journal scan, as this three tags will read data during scan, tag length couldn't less than data length which will read. | |
Title | ext4: fix potential out of bound read in ext4_fc_replay_scan() | |
References |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-09-15T14:46:01.672Z
Updated: 2025-09-15T14:46:01.672Z
Reserved: 2025-09-15T14:18:36.813Z
Link: CVE-2022-50306

No data.

Status : Awaiting Analysis
Published: 2025-09-15T15:15:42.267
Modified: 2025-09-15T15:22:27.090
Link: CVE-2022-50306
