CVE-2023-53681
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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 3.10 | 4.19.291 |
| linux / linux_kernel | 4.20 | 5.4.253 |
| linux / linux_kernel | 5.5 | 5.10.188 |
| linux / linux_kernel | 5.11 | 5.15.121 |
| linux / linux_kernel | 5.16 | 6.1.39 |
| linux / linux_kernel | 6.2 | 6.4.4 |
- https://git.kernel.org/stable/c/4514847aee18d9391a0cf3aad75d3567c72795a4
- https://git.kernel.org/stable/c/587b4e8bb5dac682f09280ab35db4632b29d5ac4
- https://git.kernel.org/stable/c/7ecea5ce3dc17339c280c75b58ac93d8c8620d9f
- https://git.kernel.org/stable/c/80fca8a10b604afad6c14213fdfd816c4eda3ee4
- https://git.kernel.org/stable/c/a4405f6ee03323410d7b10966fd67b35f71b1944
- https://git.kernel.org/stable/c/b070f29a61436f6f8a2e3abc7ea4f4be81695198
- https://git.kernel.org/stable/c/f67b0e3081f2a24170280a33ac66f6b112083c03
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