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.
Affected products
linux: linux kernel
References5
- git.kernel.org/stable/c/03a2cc1756a0570f887d624cd6c535ea0cbd4951 Patch
- git.kernel.org/stable/c/24840b3139d7415144b81e4f9f4c44670d15bed9 Patch
- git.kernel.org/stable/c/686b4283f82cd630fafd7ca9b03dfc080b3ec8fa Patch
- git.kernel.org/stable/c/8502e2c2d0633f99d94d22ae8dabc10caae1fc2a Patch
- git.kernel.org/stable/c/ce60d9452a0f2effa72fd20ea270c59ca691d455 Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 14 November 2026
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