Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drivers/base/memory: fix memory block reference leak in poison accounting memblk_nr_poison_inc() and memblk_nr_poison_sub() look up a memory block via find_memory_block_by_id(), which acquires a reference to the memory block device. Both helpers use the returned memory block without dropping that reference, leaking the device reference on each successful lookup. Drop the reference after updating nr_hwpoison.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.2, < 6.6.142 |
References
- https://git.kernel.org/stable/c/03a2cc1756a0570f887d624cd6c535ea0cbd4951Patch
- https://git.kernel.org/stable/c/24840b3139d7415144b81e4f9f4c44670d15bed9Patch
- https://git.kernel.org/stable/c/686b4283f82cd630fafd7ca9b03dfc080b3ec8faPatch
- https://git.kernel.org/stable/c/8502e2c2d0633f99d94d22ae8dabc10caae1fc2aPatch
- https://git.kernel.org/stable/c/ce60d9452a0f2effa72fd20ea270c59ca691d455Patch
FAQ
What is CVE-2026-64182?
CVE-2026-64182 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: drivers/base/memory: fix memory block reference leak in poison accounting memblk_nr_poison_inc() and memblk_nr_poison_sub() look u...
How severe is CVE-2026-64182?
CVE-2026-64182 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-64182?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.