Orta CVSS 5.5
CVE-2024-48881: Linux Kernel: NULL işaretçi başvurusu
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") leads a NULL pointer deference in cache_set_flush(). 1721 if (!IS_ERR_OR_NULL(c->root)) 1722 list_add(&c->root->list, &c->btree_cache); >From the above code in cache_set_flush(), if previous registration code fails before allocating c->root, it is possible c->root is NULL as what it is initialized. __bch_btree_node_alloc() never returns NULL but c->root is possible to be NULL at above line 1721. This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.
Özet bilgiler
- Ürün
- Linux Linux Kernel
- CVSS v3.1
- 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS
- %0,26 (yüzdelik 18)
- CWE
- CWE-476
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 4.19.291 | — | 4.20 |
| linux-linux-kernel | 5.4.251 | — | 5.4.287 |
| linux-linux-kernel | 5.10.188 | — | 5.10.231 |
| linux-linux-kernel | 5.15.121 | — | 5.15.174 |
| linux-linux-kernel | 6.1.39 | — | 6.1.120 |
| linux-linux-kernel | 6.4.4 | — | 6.6.66 |
| linux-linux-kernel | 6.7 | — | 6.12.5 |
| linux-linux-kernel | 6.13 | 6.13 | — |