CVSS 5.5 · Medium EPSS 0,25%
Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix null-ptr-deref when journal load failed. During the mounting process, if journal_reset() fails because of too short journal, then lead to jbd2_journal_load() fails with NULL j_sb_buffer. Subsequently, ocfs2_journal_shutdown() calls jbd2_journal_flush()->jbd2_cleanup_journal_tail()-> __jbd2_update_log_tail()->jbd2_journal_update_sb_log_tail() ->lock_buffer(journal->j_sb_buffer), resulting in a null-pointer dereference error. To resolve this issue, we should check the JBD2_LOADED flag to ensure the journal was properly loaded. Additionally, use journal instead of osb->journal directly to simplify the code.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 2.6.32 hingga sebelum 5.10.227 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.168 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.1.113 |
| linux | linux kernel | Versi 6.2 hingga sebelum 6.6.55 |
| linux | linux kernel | Versi 6.7 hingga sebelum 6.10.14 |
| linux | linux kernel | Versi 6.11 hingga sebelum 6.11.3 |