CVE-2026-45869

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45869", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.080Z", "datePublished": "2026-05-27T12:15:49.107Z", "dateUpdated": "2026-05-27T12:15:49.107Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:15:49.107Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed()\n\nIn `probe()`, `request_irq()` is called before allocating/registering a\n`power_supply` handle. If an interrupt is fired between the call to\n`request_irq()` and `power_supply_register()`, the `power_supply` handle\nwill be used uninitialized in `power_supply_changed()` in\n`wm97xx_bat_update()` (triggered from the interrupt handler). This will\nlead to a `NULL` pointer dereference since\n\nFix this racy `NULL` pointer dereference by making sure the IRQ is\nrequested _after_ the registration of the `power_supply` handle. Since\nthe IRQ is the last thing requests in the `probe()` now, remove the\nerror path for freeing it. Instead add one for unregistering the\n`power_supply` handle when IRQ request fails."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/power/supply/wm97xx_battery.c"], "versions": [{"version": "7c87942aef52d2120e95ff1dec739998b9f95a78", "lessThan": "3d7b5391bb95505b3581c1fb77150c467ab92864", "status": "affected", "versionType": "git"}, {"version": "7c87942aef52d2120e95ff1dec739998b9f95a78", "lessThan": "438f9a303ea8b55162b2d5376490c2ab3ec165a0", "status": "affected", "versionType": "git"}, {"version": "7c87942aef52d2120e95ff1dec739998b9f95a78", "lessThan": "9b7d77cb046b4487e8e511e04e62b6f416ce845c", "status": "affected", "versionType": "git"}, {"version": "7c87942aef52d2120e95ff1dec739998b9f95a78", "lessThan": "86183153c299e8bb1839e717286d6c6f39508a59", "status": "affected", "versionType": "git"}, {"version": "7c87942aef52d2120e95ff1dec739998b9f95a78", "lessThan": "93bdf715d33cf5ee01c58e8546c2469c71ce082a", "status": "affected", "versionType": "git"}, {"version": "7c87942aef52d2120e95ff1dec739998b9f95a78", "lessThan": "c0def811ad8d642dca9b6d31a198cc39f5f90837", "status": "affected", "versionType": "git"}, {"version": "7c87942aef52d2120e95ff1dec739998b9f95a78", "lessThan": "dfaf235d5a6b60cbf115a14a656946303ad007b7", "status": "affected", "versionType": "git"}, {"version": "7c87942aef52d2120e95ff1dec739998b9f95a78", "lessThan": "39fe0eac6d755ef215026518985fcf8de9360e9e", "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/power/supply/wm97xx_battery.c"], "versions": [{"version": "2.6.32", "status": "affected"}, {"version": "0", "lessThan": "2.6.32", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.252", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.202", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.165", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "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": "2.6.32", "versionEndExcluding": "5.10.252"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "5.15.202"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3d7b5391bb95505b3581c1fb77150c467ab92864"}, {"url": "https://git.kernel.org/stable/c/438f9a303ea8b55162b2d5376490c2ab3ec165a0"}, {"url": "https://git.kernel.org/stable/c/9b7d77cb046b4487e8e511e04e62b6f416ce845c"}, {"url": "https://git.kernel.org/stable/c/86183153c299e8bb1839e717286d6c6f39508a59"}, {"url": "https://git.kernel.org/stable/c/93bdf715d33cf5ee01c58e8546c2469c71ce082a"}, {"url": "https://git.kernel.org/stable/c/c0def811ad8d642dca9b6d31a198cc39f5f90837"}, {"url": "https://git.kernel.org/stable/c/dfaf235d5a6b60cbf115a14a656946303ad007b7"}, {"url": "https://git.kernel.org/stable/c/39fe0eac6d755ef215026518985fcf8de9360e9e"}], "title": "power: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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If an interrupt is fired between the call to\n`request_irq()` and `power_supply_register()`, the `power_supply` handle\nwill be used uninitialized in `power_supply_changed()` in\n`wm97xx_bat_update()` (triggered from the interrupt handler). This will\nlead to a `NULL` pointer dereference since\n\nFix this racy `NULL` pointer dereference by making sure the IRQ is\nrequested _after_ the registration of the `power_supply` handle. Since\nthe IRQ is the last thing requests in the `probe()` now, remove the\nerror path for freeing it. Instead add one for unregistering the\n`power_supply` handle when IRQ request fails."}], "id": "CVE-2026-45869", "lastModified": "2026-06-25T21:06:30.297", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-05-27T14:17:00.290", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/39fe0eac6d755ef215026518985fcf8de9360e9e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3d7b5391bb95505b3581c1fb77150c467ab92864"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/438f9a303ea8b55162b2d5376490c2ab3ec165a0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/86183153c299e8bb1839e717286d6c6f39508a59"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/93bdf715d33cf5ee01c58e8546c2469c71ce082a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9b7d77cb046b4487e8e511e04e62b6f416ce845c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c0def811ad8d642dca9b6d31a198cc39f5f90837"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dfaf235d5a6b60cbf115a14a656946303ad007b7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: power: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed()", "id": "2481909", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481909"}, "csaw": false, "cwe": "CWE-824", "details": ["A flaw was found in the Linux kernel, specifically within the wm97xx power supply driver. A timing issue, known as a race condition, can occur during the driver's setup. If an interrupt is triggered at a precise moment, it can cause the system to attempt to use an uninitialized memory pointer, leading to a NULL pointer dereference. This vulnerability could allow a local attacker to crash the system, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-45869", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not 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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-45869\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45869\nhttps://lore.kernel.org/linux-cve-announce/2026052712-CVE-2026-45869-9867@gregkh/T"]}

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