CVE-2024-53075
Description
In the Linux kernel, the following vulnerability has been resolved:
riscv: Prevent a bad reference count on CPU nodes
When populating cache leaves we previously fetched the CPU device node at the very beginning. But when ACPI is enabled we go through a specific branch which returns early and does not call 'of_node_put' for the node that was acquired.
Since we are not using a CPU device node for the ACPI code anyways, we can simply move the initialization of it just passed the ACPI block, and we are guaranteed to have an 'of_node_put' call for the acquired node. This prevents a bad reference count of the CPU device node.
Moreover, the previous function did not check for errors when acquiring the device node, so a return -ENOENT has been added for that case.
Affected products
17cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 7 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.11,<6.11.7
- cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: 6.11
- osv-coords9 versionspkg:deb/ubuntu/[email protected]?arch=source&distro=oracularpkg:deb/ubuntu/[email protected]?arch=source&distro=oracularpkg:deb/ubuntu/[email protected]?arch=source&distro=oracularpkg:deb/ubuntu/[email protected]?arch=source&distro=oracularpkg:deb/ubuntu/[email protected]?arch=source&distro=oracularpkg:deb/ubuntu/[email protected]?arch=source&distro=oracularpkg:deb/ubuntu/[email protected]?arch=source&distro=oracularpkg:deb/ubuntu/[email protected]?arch=source&distro=oracularpkg:linux/kernel
< 6.11.0-1009.10+ 8 more
- (no CPE)range: < 6.11.0-1009.10
- (no CPE)range: < 6.11.0-1009.9
- (no CPE)range: < 6.11.0-1009.9
- (no CPE)range: < 6.11.0-1010.11
- (no CPE)range: < 6.11.0-1011.12
- (no CPE)range: < 6.11.0-1008.8
- (no CPE)range: < 6.11.0-1005.5
- (no CPE)range: < 6.11.0-18.18
- (no CPE)range: >= 6.11.0, < 6.11.7
Patches
Vulnerability mechanics
References
3News mentions
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