CVE-2023-53091 | BDVDB-2026-277136 Detail

Description#

In the Linux kernel, the following vulnerability has been resolved: ext4: update s_journal_inum if it changes after journal replay When mounting a crafted ext4 image, s_journal_inum may change after journal replay, which is obviously unreasonable because we have successfully loaded and replayed the journal through the old s_journal_inum. And the new s_journal_inum bypasses some of the checks in ext4_get_journal(), which may trigger a null pointer dereference problem. So if s_journal_inum changes after the journal replay, we ignore the change, and rewrite the current journal_inum to the superblock.

Impact#

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Exploit#

History#

1. Version 12025-05-02Record published in the CVE List.
2. Version 22026-11-05Most recent update recorded in the CVE List.