{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68396", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.389Z", "datePublished": "2026-08-10T12:04:15.607Z", "dateUpdated": "2026-08-10T12:04:15.607Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-10T12:04:15.607Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: wake eh reliably when using scsi_schedule_eh\n\nDrivers which use the scsi_schedule_eh function to run the error handler\ncurrently risk the error handler thread never waking once all commands are\ntimed out or inactive. There is no enforced memory order between setting\nthe host into error recovery state and counting busy commands. This can\nresult in a race with scsi_dec_host_busy where neither CPU sees both\nconditions of all commands inactive and the host error state to request\nwaking the error handler.\n\nTo fix this, run the scsi_schedule_eh's scsi_eh_wakeup from a new work item\nwhich will use rcu to ensure scsi_schedule_eh's call to scsi_host_busy will\noccur after the error state is globally visible and will be seen by any\ncurrent scsi_dec_host_busy callers."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/scsi/hosts.c", "drivers/scsi/scsi_error.c", "drivers/scsi/scsi_priv.h", "include/scsi/scsi_host.h"], "versions": [{"version": "6eb045e092efefafc6687409a6fa6d1dabf0fb69", "lessThan": "866efe8ae8b8b4d095501001b026e1022734be28", "status": "affected", "versionType": "git"}, {"version": "6eb045e092efefafc6687409a6fa6d1dabf0fb69", "lessThan": "c7a15091237205770bd9bd4d14eb1f3029d97a34", "status": "affected", "versionType": "git"}, {"version": "6eb045e092efefafc6687409a6fa6d1dabf0fb69", "lessThan": "24d7abda6a2a19e113334accc10029f6a4b57257", "status": "affected", "versionType": "git"}, {"version": "6eb045e092efefafc6687409a6fa6d1dabf0fb69", "lessThan": "dccf3b1798b70f94e958b3d00b83010399e6fb05", "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/scsi/hosts.c", "drivers/scsi/scsi_error.c", "drivers/scsi/scsi_priv.h", "include/scsi/scsi_host.h"], "versions": [{"version": "5.5", "status": "affected"}, {"version": "0", "lessThan": "5.5", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc4", "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": "5.5", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "7.2-rc4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/866efe8ae8b8b4d095501001b026e1022734be28"}, {"url": "https://git.kernel.org/stable/c/c7a15091237205770bd9bd4d14eb1f3029d97a34"}, {"url": "https://git.kernel.org/stable/c/24d7abda6a2a19e113334accc10029f6a4b57257"}, {"url": "https://git.kernel.org/stable/c/dccf3b1798b70f94e958b3d00b83010399e6fb05"}], "title": "scsi: core: wake eh reliably when using scsi_schedule_eh", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/scsi/hosts.c", "drivers/scsi/scsi_error.c", "drivers/scsi/scsi_priv.h", "include/scsi/scsi_host.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "866efe8ae8b8b4d095501001b026e1022734be28", "status": "affected", "version": "6eb045e092efefafc6687409a6fa6d1dabf0fb69", "versionType": "git"}, {"lessThan": "c7a15091237205770bd9bd4d14eb1f3029d97a34", "status": "affected", "version": "6eb045e092efefafc6687409a6fa6d1dabf0fb69", "versionType": "git"}, {"lessThan": "24d7abda6a2a19e113334accc10029f6a4b57257", "status": "affected", "version": "6eb045e092efefafc6687409a6fa6d1dabf0fb69", "versionType": "git"}, {"lessThan": "dccf3b1798b70f94e958b3d00b83010399e6fb05", "status": "affected", "version": "6eb045e092efefafc6687409a6fa6d1dabf0fb69", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/scsi/hosts.c", "drivers/scsi/scsi_error.c", "drivers/scsi/scsi_priv.h", "include/scsi/scsi_host.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.5"}, {"lessThan": "5.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc4", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: wake eh reliably when using scsi_schedule_eh\n\nDrivers which use the scsi_schedule_eh function to run the error handler\ncurrently risk the error handler thread never waking once all commands are\ntimed out or inactive. There is no enforced memory order between setting\nthe host into error recovery state and counting busy commands. This can\nresult in a race with scsi_dec_host_busy where neither CPU sees both\nconditions of all commands inactive and the host error state to request\nwaking the error handler.\n\nTo fix this, run the scsi_schedule_eh's scsi_eh_wakeup from a new work item\nwhich will use rcu to ensure scsi_schedule_eh's call to scsi_host_busy will\noccur after the error state is globally visible and will be seen by any\ncurrent scsi_dec_host_busy callers."}], "id": "CVE-2026-68396", "lastModified": "2026-08-10T13:20:33.010", "metrics": {}, "published": "2026-08-10T13:20:33.010", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/24d7abda6a2a19e113334accc10029f6a4b57257"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/866efe8ae8b8b4d095501001b026e1022734be28"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c7a15091237205770bd9bd4d14eb1f3029d97a34"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dccf3b1798b70f94e958b3d00b83010399e6fb05"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: scsi: core: wake eh reliably when using scsi_schedule_eh", "id": "2513159", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513159"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-366", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nscsi: core: wake eh reliably when using scsi_schedule_eh\nDrivers which use the scsi_schedule_eh function to run the error handler\ncurrently risk the error handler thread never waking once all commands are\ntimed out or inactive. There is no enforced memory order between setting\nthe host into error recovery state and counting busy commands. This can\nresult in a race with scsi_dec_host_busy where neither CPU sees both\nconditions of all commands inactive and the host error state to request\nwaking the error handler.\nTo fix this, run the scsi_schedule_eh's scsi_eh_wakeup from a new work item\nwhich will use rcu to ensure scsi_schedule_eh's call to scsi_host_busy will\noccur after the error state is globally visible and will be seen by any\ncurrent scsi_dec_host_busy callers.", "A flaw was found in the Linux kernel's SCSI core. A race condition exists when drivers use the `scsi_schedule_eh` function, which can prevent the error handler thread from waking up reliably. This occurs because of an unforced memory order between setting the host into error recovery state and counting busy commands. As a result, the system may experience a denial of service due to the failure of the error handler to properly manage SCSI device errors."], "name": "CVE-2026-68396", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68396\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68396\nhttps://lore.kernel.org/linux-cve-announce/2026081047-CVE-2026-68396-0742@gregkh/T"], "threat_severity": "Moderate"}