CVE-2025-38337

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix data-race and null-ptr-deref in jbd2journaldirtymetadata Since handle-htransaction may be a NULL pointer, so we should change it to call ishandleabortedhandle first before dereferencing it. And the following data-race w...

CVE-2022-50126 jbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix assertion 'jh-bfrozendata == NULL' failure when journal aborted Following process will fail assertion 'jh-bfrozendata == NULL' in jbd2journaldirtymetadata: jbd2journalcommittransaction unlinkdir/a jh-btransaction = tran...

CVE-2025-37839 jbd2: remove wrong sb->s_sequence check

In the Linux kernel, the following vulnerability has been resolved: jbd2: remove wrong sb-ssequence check Journal emptiness is not determined by sb-ssequence == 0 but rather by sb-sstart == 0 which is set a few lines above. Furthermore 0 is a valid transaction ID so the check can spuriously...

CVE-2024-49959

CVE-2024-49959 (Linux kernel) : The issue occurs in journaling code (jbd2). During journal space waits, __jbd2_log_wait_for_space() may call jbd2_cleanup_journal_tail() to reclaim space; if an error happens inside that cleanup (e.g., EIO) the function could keep waiting instead of stopping, poten...