CVE-2026-64182
drivers/base/memory: fix memory block reference leak in poison accounting
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 19, 2026 |
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Affected Versions
Linux / Linux
5033091de814ab4b5623faed2755f3064e19e2d2 < 686b4283f82cd630fafd7ca9b03dfc080b3ec8fa 5033091de814ab4b5623faed2755f3064e19e2d2 < ce60d9452a0f2effa72fd20ea270c59ca691d455 5033091de814ab4b5623faed2755f3064e19e2d2 < 24840b3139d7415144b81e4f9f4c44670d15bed9 5033091de814ab4b5623faed2755f3064e19e2d2 < 8502e2c2d0633f99d94d22ae8dabc10caae1fc2a 5033091de814ab4b5623faed2755f3064e19e2d2 < 03a2cc1756a0570f887d624cd6c535ea0cbd4951
Linux / Linux
6.2
References
git.kernel.org: https://git.kernel.org/stable/c/686b4283f82cd630fafd7ca9b03dfc080b3ec8fa git.kernel.org: https://git.kernel.org/stable/c/ce60d9452a0f2effa72fd20ea270c59ca691d455 git.kernel.org: https://git.kernel.org/stable/c/24840b3139d7415144b81e4f9f4c44670d15bed9 git.kernel.org: https://git.kernel.org/stable/c/8502e2c2d0633f99d94d22ae8dabc10caae1fc2a git.kernel.org: https://git.kernel.org/stable/c/03a2cc1756a0570f887d624cd6c535ea0cbd4951