{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72040", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.901Z", "datePublished": "2026-08-15T05:51:59.975Z", "dateUpdated": "2026-08-17T05:07:06.229Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:07:06.229Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: fix refcount leak in i_ipmi_request()\n\nWhen a caller provides a `supplied_recv` message to i_ipmi_request(),\nthe function increments the user's `nr_msgs` reference count. If an\nerror occurs later, the out_err cleanup path only frees the recv_msg\nif the function allocated it itself (i.e., !supplied_recv). In the\nsupplied_recv case the cleanup is skipped, leaving the reference count\nelevated. The caller ipmi_request_supply_msgs() does not release the\nsupplied_recv on error, so the reference is permanently leaked.\n\nFix this by explicitly reverting the reference count operations when a\nsupplied recv_msg with a valid user pointer is present in the error\npath: decrement nr_msgs and drop the user's kref."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/char/ipmi/ipmi_msghandler.c"], "versions": [{"version": "348121b29594d42d1635648fd3ed31dfa25351d5", "lessThan": "9409e18ffe7378d202efe1cf69989df9f67b0369", "status": "affected", "versionType": "git"}, {"version": "53d6e403affbf6df2c859a0ea00ccfc1e72090ca", "lessThan": "e2a3b77df6aef031455dd83ea8ed4344b7dca1f9", "status": "affected", "versionType": "git"}, {"version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812", "lessThan": "f5c5065963024390ddad51bd455d1adc710de575", "status": "affected", "versionType": "git"}, {"version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812", "lessThan": "0fd23994ec8c5436d9f0b50848deb87ed933e6b3", "status": "affected", "versionType": "git"}, {"version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812", "lessThan": "a3f3859cecacb64f18fd446271ece9a3b3f2d4de", "status": "affected", "versionType": "git"}, {"version": "f63723ca7d7623f9dae1990973cd158671f03c56", "status": "affected", "versionType": "git"}, {"version": "0ed73be9a2547ffb9b5c1d879ad9bfab73d920b5", "status": "affected", "versionType": "git"}, {"version": "6.6.113", "lessThan": "6.6.148", "status": "affected", "versionType": "semver"}, {"version": "6.12.54", "lessThan": "6.12.101", "status": "affected", "versionType": "semver"}, {"version": "6.1.157", "lessThan": "6.2", "status": "affected", "versionType": "semver"}, {"version": "6.17.4", "lessThan": "6.18", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/char/ipmi/ipmi_msghandler.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "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": "6.6.113", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.54", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17.4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/9409e18ffe7378d202efe1cf69989df9f67b0369"}, {"url": "https://git.kernel.org/stable/c/e2a3b77df6aef031455dd83ea8ed4344b7dca1f9"}, {"url": "https://git.kernel.org/stable/c/f5c5065963024390ddad51bd455d1adc710de575"}, {"url": "https://git.kernel.org/stable/c/0fd23994ec8c5436d9f0b50848deb87ed933e6b3"}, {"url": "https://git.kernel.org/stable/c/a3f3859cecacb64f18fd446271ece9a3b3f2d4de"}], "title": "ipmi: fix refcount leak in i_ipmi_request()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/char/ipmi/ipmi_msghandler.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "9409e18ffe7378d202efe1cf69989df9f67b0369", "status": "affected", "version": "348121b29594d42d1635648fd3ed31dfa25351d5", "versionType": "git"}, {"lessThan": "e2a3b77df6aef031455dd83ea8ed4344b7dca1f9", "status": "affected", "version": "53d6e403affbf6df2c859a0ea00ccfc1e72090ca", "versionType": "git"}, {"lessThan": "f5c5065963024390ddad51bd455d1adc710de575", "status": "affected", "version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812", "versionType": "git"}, {"lessThan": "0fd23994ec8c5436d9f0b50848deb87ed933e6b3", "status": "affected", "version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812", "versionType": "git"}, {"lessThan": "a3f3859cecacb64f18fd446271ece9a3b3f2d4de", "status": "affected", "version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812", "versionType": "git"}, {"status": "affected", "version": "f63723ca7d7623f9dae1990973cd158671f03c56", "versionType": "git"}, {"status": "affected", "version": "0ed73be9a2547ffb9b5c1d879ad9bfab73d920b5", "versionType": "git"}, {"lessThan": "6.6.148", "status": "affected", "version": "6.6.113", "versionType": "semver"}, {"lessThan": "6.12.101", "status": "affected", "version": "6.12.54", "versionType": "semver"}, {"lessThan": "6.2", "status": "affected", "version": "6.1.157", "versionType": "semver"}, {"lessThan": "6.18", "status": "affected", "version": "6.17.4", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/char/ipmi/ipmi_msghandler.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.18"}, {"lessThan": "6.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "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\nipmi: fix refcount leak in i_ipmi_request()\n\nWhen a caller provides a `supplied_recv` message to i_ipmi_request(),\nthe function increments the user's `nr_msgs` reference count. If an\nerror occurs later, the out_err cleanup path only frees the recv_msg\nif the function allocated it itself (i.e., !supplied_recv). In the\nsupplied_recv case the cleanup is skipped, leaving the reference count\nelevated. The caller ipmi_request_supply_msgs() does not release the\nsupplied_recv on error, so the reference is permanently leaked.\n\nFix this by explicitly reverting the reference count operations when a\nsupplied recv_msg with a valid user pointer is present in the error\npath: decrement nr_msgs and drop the user's kref."}], "id": "CVE-2026-72040", "lastModified": "2026-08-17T06:18:01.917", "metrics": {}, "published": "2026-08-15T06:21:13.123", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0fd23994ec8c5436d9f0b50848deb87ed933e6b3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9409e18ffe7378d202efe1cf69989df9f67b0369"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a3f3859cecacb64f18fd446271ece9a3b3f2d4de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e2a3b77df6aef031455dd83ea8ed4344b7dca1f9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f5c5065963024390ddad51bd455d1adc710de575"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: ipmi: fix refcount leak in i_ipmi_request()", "id": "2516592", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516592"}, "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-911", "details": ["A flaw was found in the Linux kernel's Intelligent Platform Management Interface (IPMI) subsystem. When a caller provides a message to the `i_ipmi_request()` function, a reference count is incremented. However, if an error occurs during this process, the reference count is not properly decremented, resulting in a permanent resource leak. This resource leak could allow a local attacker to cause a denial of service (DoS) condition on the system."], "name": "CVE-2026-72040", "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72040\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72040\nhttps://lore.kernel.org/linux-cve-announce/2026081513-CVE-2026-72040-aa8f@gregkh/T"], "threat_severity": "Low"}