CVE-2026-45960

In the Linux kernel, the following vulnerability has been resolved: hfsplus: return error when node already exists in hfs_bnode_create When hfs_bnode_create() finds that a node is already hashed (which should not happen in normal operation), it currently returns the existing node without incrementing its reference count. This causes a reference count inconsistency that leads to a kernel panic when the node is later freed in hfs_bnode_put(): kernel BUG at fs/hfsplus/bnode.c:676! BUG_ON(!atomic_read(&node->refcnt)) This scenario can occur when hfs_bmap_alloc() attempts to allocate a node that is already in use (e.g., when node 0's bitmap bit is incorrectly unset), or due to filesystem corruption. Returning an existing node from a create path is not normal operation. Fix this by returning ERR_PTR(-EEXIST) instead of the node when it's already hashed. This properly signals the error condition to callers, which already check for IS_ERR() return values.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.16:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.16:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.16:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.16:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.16:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.16:rc6:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-27 14:17

Updated : 2026-06-17 10:52


NVD link : CVE-2026-45960

Mitre link : CVE-2026-45960

CVE.ORG link : CVE-2026-45960


JSON object : View

Products Affected

linux

  • linux_kernel