CVE-2026-74405

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74405", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.892Z", "datePublished": "2026-08-15T05:59:14.719Z", "dateUpdated": "2026-10-30T12:29:58.561Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:29:58.561Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nOPP: Fix race between OPP addition and lookup\n\nA race exists between dev_pm_opp_add_dynamic() and\ndev_pm_opp_find_freq_exact():\n\n CPU0 (add) CPU1 (lookup)\n ------------------------------- ------------------------------\n _opp_add()\n mutex_lock()\n list_add(&new_opp->node, head)\n mutex_unlock() _opp_table_find_key()\n mutex_lock()\n dev_pm_opp_get(opp)\n kref_get()\n mutex_unlock()\n kref_init(&new_opp->kref)\n dev_pm_opp_put()\n kref_put_mutex()\n\nThe newly added OPP is inserted into the list before its kref is\ninitialized. A concurrent lookup can find this OPP and increment its\nreference count while it is still uninitialized, leading to refcount\ncorruption and a potential premature free.\n\nFix this by initializing ->kref and ->opp_table before making the OPP\nvisible via list_add(). This ensures any concurrent lookup observes a\nfully initialized object.\n\n[ Viresh: Updated commit log ]"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The bug is in the kernel OPP DVFS core reached only from local cpufreq, devfreq, thermal, and GPU power-management paths (e.g. scmi-cpufreq, mtk-mfg, MSM Adreno) that call dev_pm_opp_add_dynamic() and dev_pm_opp_find_freq_exact(); there is no network, adjacent-radio, or physical-device input into _opp_add().\nAC:L - The attacker can drive the lookup side with parallel CPU/GPU load or cpufreq scaling while the kernel concurrently inserts OPPs via _opp_add() during multi-CPU SCMI/GPU power-domain attach and boot cpufreq init; both race participants are attacker-influenceable timing on multi-core ARM/Android/embedded systems.\nPR:L - No init-namespace root is required to hammer dev_pm_opp_find_freq_exact() through normal cpufreq, thermal, or GPU DVFS activity from an unprivileged local process; OPP registration runs automatically in kernel driver attach/probe paths without attacker credentials.\nUI:N - Exploitation does not require any victim action beyond the attacker (or kernel) driving DVFS activity; no mount, file open, or other interactive step is needed once the attacker runs concurrent workload or scaling pressure on the target system.\nS:U - Refcount corruption causes premature kfree() of a dev_pm_opp slab object still linked in the OPP table, enabling standard kernel memory corruption and privilege escalation within the same OS boundary rather than a VM, IOMMU, or sandbox escape.\nC:H - Uninitialized kref_get()/kref_init() races corrupt the OPP refcount and can free the structure while still listed; this use-after-free of kmalloc'd dev_pm_opp memory can expose adjacent heap contents and support arbitrary kernel read primitives.\nI:H - Premature free of dev_pm_opp while its list node remains reachable allows heap reuse and controlled writes through subsequent allocations, providing a standard path to corrupt kernel objects and achieve arbitrary code execution.\nA:H - Refcount corruption can trigger _opp_kref_release() to kfree() an OPP still referenced by concurrent lookups, causing kernel oops/panic from use-after-free or list corruption during ongoing DVFS operations."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/opp/core.c"], "versions": [{"version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "835b9b5b4d287a03c713680b0231d36ff599201b", "status": "affected", "versionType": "git"}, {"version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "2fb061a90898420d8ca1a0b9959ca977d90fa841", "status": "affected", "versionType": "git"}, {"version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "e25be5d812ec8ca2615d23726b3861b04e2fff35", "status": "affected", "versionType": "git"}, {"version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "932ebfad767be1395946cbc1727a7c38eeee3d24", "status": "affected", "versionType": "git"}, {"version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "1946ea2f6b3ec00e313c78e83fc196f1f6aba2a9", "status": "affected", "versionType": "git"}, {"version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "46696b0b2123475d7f95909435c09808fc5ffd23", "status": "affected", "versionType": "git"}, {"version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5", "status": "affected", "versionType": "git"}, {"version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "f5e1cc9a284bff2510981643a5bca4bc4c21b81a", "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/opp/core.c"], "versions": [{"version": "4.11", "status": "affected"}, {"version": "0", "lessThan": "4.11", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.273", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.224", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "4.11", "versionEndExcluding": "5.10.273"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "5.15.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/835b9b5b4d287a03c713680b0231d36ff599201b"}, {"url": "https://git.kernel.org/stable/c/2fb061a90898420d8ca1a0b9959ca977d90fa841"}, {"url": "https://git.kernel.org/stable/c/e25be5d812ec8ca2615d23726b3861b04e2fff35"}, {"url": "https://git.kernel.org/stable/c/932ebfad767be1395946cbc1727a7c38eeee3d24"}, {"url": "https://git.kernel.org/stable/c/1946ea2f6b3ec00e313c78e83fc196f1f6aba2a9"}, {"url": "https://git.kernel.org/stable/c/46696b0b2123475d7f95909435c09808fc5ffd23"}, {"url": "https://git.kernel.org/stable/c/bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5"}, {"url": "https://git.kernel.org/stable/c/f5e1cc9a284bff2510981643a5bca4bc4c21b81a"}], "title": "OPP: Fix race between OPP addition and lookup", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-74405", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T18:55:48.602720Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T19:05:43.186Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-74405", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T18:55:48.602720Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T18:55:49.555Z"}}], "cna": {"title": "OPP: Fix race between OPP addition and lookup", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The bug is in the kernel OPP DVFS core reached only from local cpufreq, devfreq, thermal, and GPU power-management paths (e.g. scmi-cpufreq, mtk-mfg, MSM Adreno) that call dev_pm_opp_add_dynamic() and dev_pm_opp_find_freq_exact(); there is no network, adjacent-radio, or physical-device input into _opp_add().\nAC:L - The attacker can drive the lookup side with parallel CPU/GPU load or cpufreq scaling while the kernel concurrently inserts OPPs via _opp_add() during multi-CPU SCMI/GPU power-domain attach and boot cpufreq init; both race participants are attacker-influenceable timing on multi-core ARM/Android/embedded systems.\nPR:L - No init-namespace root is required to hammer dev_pm_opp_find_freq_exact() through normal cpufreq, thermal, or GPU DVFS activity from an unprivileged local process; OPP registration runs automatically in kernel driver attach/probe paths without attacker credentials.\nUI:N - Exploitation does not require any victim action beyond the attacker (or kernel) driving DVFS activity; no mount, file open, or other interactive step is needed once the attacker runs concurrent workload or scaling pressure on the target system.\nS:U - Refcount corruption causes premature kfree() of a dev_pm_opp slab object still linked in the OPP table, enabling standard kernel memory corruption and privilege escalation within the same OS boundary rather than a VM, IOMMU, or sandbox escape.\nC:H - Uninitialized kref_get()/kref_init() races corrupt the OPP refcount and can free the structure while still listed; this use-after-free of kmalloc'd dev_pm_opp memory can expose adjacent heap contents and support arbitrary kernel read primitives.\nI:H - Premature free of dev_pm_opp while its list node remains reachable allows heap reuse and controlled writes through subsequent allocations, providing a standard path to corrupt kernel objects and achieve arbitrary code execution.\nA:H - Refcount corruption can trigger _opp_kref_release() to kfree() an OPP still referenced by concurrent lookups, causing kernel oops/panic from use-after-free or list corruption during ongoing DVFS operations."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "932ebfad767be1395946cbc1727a7c38eeee3d24", "versionType": "git"}, {"status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "1946ea2f6b3ec00e313c78e83fc196f1f6aba2a9", "versionType": "git"}, {"status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "46696b0b2123475d7f95909435c09808fc5ffd23", "versionType": "git"}, {"status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5", "versionType": "git"}, {"status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "lessThan": "f5e1cc9a284bff2510981643a5bca4bc4c21b81a", "versionType": "git"}], "programFiles": ["drivers/opp/core.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.11"}, {"status": "unaffected", "version": "0", "lessThan": "4.11", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.160", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.114", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.40", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.5", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/opp/core.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/932ebfad767be1395946cbc1727a7c38eeee3d24"}, {"url": "https://git.kernel.org/stable/c/1946ea2f6b3ec00e313c78e83fc196f1f6aba2a9"}, {"url": "https://git.kernel.org/stable/c/46696b0b2123475d7f95909435c09808fc5ffd23"}, {"url": "https://git.kernel.org/stable/c/bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5"}, {"url": "https://git.kernel.org/stable/c/f5e1cc9a284bff2510981643a5bca4bc4c21b81a"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nOPP: Fix race between OPP addition and lookup\n\nA race exists between dev_pm_opp_add_dynamic() and\ndev_pm_opp_find_freq_exact():\n\n CPU0 (add) CPU1 (lookup)\n ------------------------------- ------------------------------\n _opp_add()\n mutex_lock()\n list_add(&new_opp->node, head)\n mutex_unlock() _opp_table_find_key()\n mutex_lock()\n dev_pm_opp_get(opp)\n kref_get()\n mutex_unlock()\n kref_init(&new_opp->kref)\n dev_pm_opp_put()\n kref_put_mutex()\n\nThe newly added OPP is inserted into the list before its kref is\ninitialized. A concurrent lookup can find this OPP and increment its\nreference count while it is still uninitialized, leading to refcount\ncorruption and a potential premature free.\n\nFix this by initializing ->kref and ->opp_table before making the OPP\nvisible via list_add(). This ensures any concurrent lookup observes a\nfully initialized object.\n\n[ Viresh: Updated commit log ]"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.160", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.114", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.40", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.5", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "4.11"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:45:38.343Z"}}}, "cveMetadata": {"cveId": "CVE-2026-74405", "state": "PUBLISHED", "dateUpdated": "2026-10-21T12:45:38.343Z", "dateReserved": "2026-08-15T05:44:03.892Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-15T05:59:14.719Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/opp/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "835b9b5b4d287a03c713680b0231d36ff599201b", "status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "versionType": "git"}, {"lessThan": "2fb061a90898420d8ca1a0b9959ca977d90fa841", "status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "versionType": "git"}, {"lessThan": "e25be5d812ec8ca2615d23726b3861b04e2fff35", "status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "versionType": "git"}, {"lessThan": "932ebfad767be1395946cbc1727a7c38eeee3d24", "status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "versionType": "git"}, {"lessThan": "1946ea2f6b3ec00e313c78e83fc196f1f6aba2a9", "status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "versionType": "git"}, {"lessThan": "46696b0b2123475d7f95909435c09808fc5ffd23", "status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "versionType": "git"}, {"lessThan": "bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5", "status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "versionType": "git"}, {"lessThan": "f5e1cc9a284bff2510981643a5bca4bc4c21b81a", "status": "affected", "version": "7034764a1e4a6edbb60914e89aad8384e3fe5d17", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/opp/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.11"}, {"lessThan": "4.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.273", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.224", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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\nOPP: Fix race between OPP addition and lookup\n\nA race exists between dev_pm_opp_add_dynamic() and\ndev_pm_opp_find_freq_exact():\n\n CPU0 (add) CPU1 (lookup)\n ------------------------------- ------------------------------\n _opp_add()\n mutex_lock()\n list_add(&new_opp->node, head)\n mutex_unlock() _opp_table_find_key()\n mutex_lock()\n dev_pm_opp_get(opp)\n kref_get()\n mutex_unlock()\n kref_init(&new_opp->kref)\n dev_pm_opp_put()\n kref_put_mutex()\n\nThe newly added OPP is inserted into the list before its kref is\ninitialized. A concurrent lookup can find this OPP and increment its\nreference count while it is still uninitialized, leading to refcount\ncorruption and a potential premature free.\n\nFix this by initializing ->kref and ->opp_table before making the OPP\nvisible via list_add(). This ensures any concurrent lookup observes a\nfully initialized object.\n\n[ Viresh: Updated commit log ]"}], "id": "CVE-2026-74405", "lastModified": "2026-10-30T13:19:57.030", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-74405", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T18:55:48.602720Z", "version": "2.0.3"}}]}, "published": "2026-08-15T06:22:42.530", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1946ea2f6b3ec00e313c78e83fc196f1f6aba2a9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2fb061a90898420d8ca1a0b9959ca977d90fa841"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/46696b0b2123475d7f95909435c09808fc5ffd23"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/835b9b5b4d287a03c713680b0231d36ff599201b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/932ebfad767be1395946cbc1727a7c38eeee3d24"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e25be5d812ec8ca2615d23726b3861b04e2fff35"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f5e1cc9a284bff2510981643a5bca4bc4c21b81a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: OPP: Fix race between OPP addition and lookup", "id": "2516771", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516771"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-911", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nOPP: Fix race between OPP addition and lookup\nA race exists between dev_pm_opp_add_dynamic() and\ndev_pm_opp_find_freq_exact():\nCPU0 (add) CPU1 (lookup)\n------------------------------- ------------------------------\n_opp_add()\nmutex_lock()\nlist_add(&new_opp->node, head)\nmutex_unlock() _opp_table_find_key()\nmutex_lock()\ndev_pm_opp_get(opp)\nkref_get()\nmutex_unlock()\nkref_init(&new_opp->kref)\ndev_pm_opp_put()\nkref_put_mutex()\nThe newly added OPP is inserted into the list before its kref is\ninitialized. A concurrent lookup can find this OPP and increment its\nreference count while it is still uninitialized, leading to refcount\ncorruption and a potential premature free.\nFix this by initializing ->kref and ->opp_table before making the OPP\nvisible via list_add(). This ensures any concurrent lookup observes a\nfully initialized object.\n[ Viresh: Updated commit log ]", "A flaw was found in the Linux kernel. A race condition exists within the Optimized Power Performance (OPP) subsystem, where a newly added OPP object is exposed before its internal reference count is fully initialized. A concurrent operation can then increment this uninitialized reference count, leading to data corruption. This corruption can cause the object to be prematurely released, potentially resulting in system instability or a denial of service."], "name": "CVE-2026-74405", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74405\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74405\nhttps://lore.kernel.org/linux-cve-announce/2026081509-CVE-2026-74405-fed2@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7034764a1e4a6edbb60914e89aad8384e3fe5d17,46696b0b2123475d7f95909435c09808fc5ffd23)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7034764a1e4a6edbb60914e89aad8384e3fe5d17,bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7034764a1e4a6edbb60914e89aad8384e3fe5d17,f5e1cc9a284bff2510981643a5bca4bc4c21b81a)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,4.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T16:15:03.533681+00:00", "updated": "2026-08-22T02:45:03.711381+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}