{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64182", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.039Z", "datePublished": "2026-07-19T15:41:05.186Z", "dateUpdated": "2026-07-19T15:41:05.186Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T15:41:05.186Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/base/memory: fix memory block reference leak in poison accounting\n\nmemblk_nr_poison_inc() and memblk_nr_poison_sub() look up a memory block\nvia find_memory_block_by_id(), which acquires a reference to the memory\nblock device.\n\nBoth helpers use the returned memory block without dropping that\nreference, leaking the device reference on each successful lookup. Drop\nthe reference after updating nr_hwpoison."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/base/memory.c"], "versions": [{"version": "5033091de814ab4b5623faed2755f3064e19e2d2", "lessThan": "686b4283f82cd630fafd7ca9b03dfc080b3ec8fa", "status": "affected", "versionType": "git"}, {"version": "5033091de814ab4b5623faed2755f3064e19e2d2", "lessThan": "ce60d9452a0f2effa72fd20ea270c59ca691d455", "status": "affected", "versionType": "git"}, {"version": "5033091de814ab4b5623faed2755f3064e19e2d2", "lessThan": "24840b3139d7415144b81e4f9f4c44670d15bed9", "status": "affected", "versionType": "git"}, {"version": "5033091de814ab4b5623faed2755f3064e19e2d2", "lessThan": "8502e2c2d0633f99d94d22ae8dabc10caae1fc2a", "status": "affected", "versionType": "git"}, {"version": "5033091de814ab4b5623faed2755f3064e19e2d2", "lessThan": "03a2cc1756a0570f887d624cd6c535ea0cbd4951", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/base/memory.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.142", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.92", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.34", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.6.142"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.12.92"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.18.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/686b4283f82cd630fafd7ca9b03dfc080b3ec8fa"}, {"url": "https://git.kernel.org/stable/c/ce60d9452a0f2effa72fd20ea270c59ca691d455"}, {"url": "https://git.kernel.org/stable/c/24840b3139d7415144b81e4f9f4c44670d15bed9"}, {"url": "https://git.kernel.org/stable/c/8502e2c2d0633f99d94d22ae8dabc10caae1fc2a"}, {"url": "https://git.kernel.org/stable/c/03a2cc1756a0570f887d624cd6c535ea0cbd4951"}], "title": "drivers/base/memory: fix memory block reference leak in poison accounting", "x_generator": {"engine": "bippy-1.2.0"}}}}

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