bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
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 products
Linux · LinuxReferences
https://git.kernel.org/stable/c/4514847aee18d9391a0cf3aad75d3567c72795a4https://git.kernel.org/stable/c/587b4e8bb5dac682f09280ab35db4632b29d5ac4https://git.kernel.org/stable/c/7ecea5ce3dc17339c280c75b58ac93d8c8620d9fhttps://git.kernel.org/stable/c/80fca8a10b604afad6c14213fdfd816c4eda3ee4https://git.kernel.org/stable/c/a4405f6ee03323410d7b10966fd67b35f71b1944https://git.kernel.org/stable/c/b070f29a61436f6f8a2e3abc7ea4f4be81695198https://git.kernel.org/stable/c/f67b0e3081f2a24170280a33ac66f6b112083c03