CVE-2022-50306 — ext4: fix potential out of bound read in ext4_fc_replay_scan()
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…
Published: 2025-09-15 · CVSS: 7.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7