Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent In some specific situations, the return value of __bch_btree_node_alloc may be NULL. This may lead to a potential NULL pointer dereference in caller function like a calling chain : btree_split->bch_btree_node_alloc->__bch_btree_node_alloc. Fix it by initializing the return value in __bch_btree_node_alloc.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected cafe563591446cf80bfbc2fe3bc72a2e36cf1060 before 587b4e8bb5dac682f09280ab35db4632b29d5ac4; affected cafe563591446cf80bfbc2fe3bc72a2e36cf1060 before b070f29a61436f6f8a2e3abc7ea4f4be81695198; affected cafe563591446cf80bfbc2fe3bc72a2e36cf1060 before a4405f6ee03323410d7b10966fd67b35f71b1944; affected cafe563591446cf80bfbc2fe3bc72a2e36cf1060 before f67b0e3081f2a24170280a33ac66f6b112083c03; affected cafe563591446cf80bfbc2fe3bc72a2e36cf1060 before 7ecea5ce3dc17339c280c75b58ac93d8c8620d9f; affected cafe563591446cf80bfbc2fe3bc72a2e36cf1060 before 4514847aee18d9391a0cf3aad75d3567c72795a4; affected cafe563591446cf80bfbc2fe3bc72a2e36cf1060 before 80fca8a10b604afad6c14213fdfd816c4eda3ee4 |
| Linux / Linux | affected 3.10; unaffected 0 before 3.10; unaffected 4.19.291 through 4.19.*; unaffected 5.4.253 through 5.4.*; unaffected 5.10.188 through 5.10.*; unaffected 5.15.121 through 5.15.*; unaffected 6.1.39 through 6.1.*; unaffected 6.4.4 through 6.4.*; unaffected 6.5 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/587b4e8bb5dac682f09280ab35db4632b29d5ac4
- https://git.kernel.org/stable/c/b070f29a61436f6f8a2e3abc7ea4f4be81695198
- https://git.kernel.org/stable/c/a4405f6ee03323410d7b10966fd67b35f71b1944
- https://git.kernel.org/stable/c/f67b0e3081f2a24170280a33ac66f6b112083c03
- https://git.kernel.org/stable/c/7ecea5ce3dc17339c280c75b58ac93d8c8620d9f
- https://git.kernel.org/stable/c/4514847aee18d9391a0cf3aad75d3567c72795a4
- https://git.kernel.org/stable/c/80fca8a10b604afad6c14213fdfd816c4eda3ee4