{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45975", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.090Z", "datePublished": "2026-05-27T12:18:33.939Z", "dateUpdated": "2026-05-27T12:18:33.939Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:18:33.939Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nublk: use READ_ONCE() to read struct ublksrv_ctrl_cmd\n\nstruct ublksrv_ctrl_cmd is part of the io_uring_sqe, which may lie in\nuserspace-mapped memory. It's racy to access its fields with normal\nloads, as userspace may write to them concurrently. Use READ_ONCE() to\ncopy the ublksrv_ctrl_cmd from the io_uring_sqe to the stack. Use the\nlocal copy in place of the one in the io_uring_sqe."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/block/ublk_drv.c"], "versions": [{"version": "87213b0d847cd300285b5545598e0548baeb5208", "lessThan": "ce63eda3e6d36e2c253febee1c8421ecbd1a680e", "status": "affected", "versionType": "git"}, {"version": "87213b0d847cd300285b5545598e0548baeb5208", "lessThan": "ed9f54cc1e335096733aed03c2a46de3d58922ed", "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/block/ublk_drv.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.19", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ce63eda3e6d36e2c253febee1c8421ecbd1a680e"}, {"url": "https://git.kernel.org/stable/c/ed9f54cc1e335096733aed03c2a46de3d58922ed"}], "title": "ublk: use READ_ONCE() to read struct ublksrv_ctrl_cmd", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nublk: use READ_ONCE() to read struct ublksrv_ctrl_cmd\n\nstruct ublksrv_ctrl_cmd is part of the io_uring_sqe, which may lie in\nuserspace-mapped memory. It's racy to access its fields with normal\nloads, as userspace may write to them concurrently. Use READ_ONCE() to\ncopy the ublksrv_ctrl_cmd from the io_uring_sqe to the stack. Use the\nlocal copy in place of the one in the io_uring_sqe."}], "id": "CVE-2026-45975", "lastModified": "2026-05-27T14:48:03.013", "metrics": {}, "published": "2026-05-27T14:17:14.590", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ce63eda3e6d36e2c253febee1c8421ecbd1a680e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ed9f54cc1e335096733aed03c2a46de3d58922ed"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{}