CVE-2023-53681
bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
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Description
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory 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
References (7)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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