{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46096", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.097Z", "datePublished": "2026-05-27T12:58:56.233Z", "dateUpdated": "2026-05-27T12:58:56.233Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:58:56.233Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public()\n\ntpm2_read_public() calls tpm_buf_init() but fails to call\ntpm_buf_destroy() on two exit paths, leaking a page allocation:\n\n1. When name_size() returns an error (unrecognized hash algorithm),\n the function returns directly without destroying the buffer.\n\n2. On the success path, the buffer is never destroyed before\n returning.\n\nAll other error paths in the function correctly call\ntpm_buf_destroy() before returning.\n\nFix both by adding the missing tpm_buf_destroy() calls."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/char/tpm/tpm2-sessions.c"], "versions": [{"version": "20eda7c74b69fe9e1caf9b930a5c016bf8d755fa", "lessThan": "f8775d9d9062da662cc861f9ff7722a65896d4cd", "status": "affected", "versionType": "git"}, {"version": "bda1cbf73c6e241267c286427f2ed52b5735d872", "lessThan": "2f434be87e256fd58254f60ddf5d7d58e775ca0b", "status": "affected", "versionType": "git"}, {"version": "bda1cbf73c6e241267c286427f2ed52b5735d872", "lessThan": "f0f75a3d98b7959a8677b6363e23190f3018636b", "status": "affected", "versionType": "git"}, {"version": "a3b7eb67225c486a2da357c5db3e386f4e64bcde", "status": "affected", "versionType": "git"}, {"version": "6.18.3", "lessThan": "6.18.27", "status": "affected", "versionType": "semver"}, {"version": "6.12.64", "lessThan": "6.13", "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/tpm/tpm2-sessions.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.27", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.4", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1-rc1", "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": "6.18.3", "versionEndExcluding": "6.18.27"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.0.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.1-rc1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.64"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f8775d9d9062da662cc861f9ff7722a65896d4cd"}, {"url": "https://git.kernel.org/stable/c/2f434be87e256fd58254f60ddf5d7d58e775ca0b"}, {"url": "https://git.kernel.org/stable/c/f0f75a3d98b7959a8677b6363e23190f3018636b"}], "title": "tpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public()\n\ntpm2_read_public() calls tpm_buf_init() but fails to call\ntpm_buf_destroy() on two exit paths, leaking a page allocation:\n\n1. When name_size() returns an error (unrecognized hash algorithm),\n the function returns directly without destroying the buffer.\n\n2. On the success path, the buffer is never destroyed before\n returning.\n\nAll other error paths in the function correctly call\ntpm_buf_destroy() before returning.\n\nFix both by adding the missing tpm_buf_destroy() calls."}], "id": "CVE-2026-46096", "lastModified": "2026-05-27T14:48:03.013", "metrics": {}, "published": "2026-05-27T14:17:31.220", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2f434be87e256fd58254f60ddf5d7d58e775ca0b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f0f75a3d98b7959a8677b6363e23190f3018636b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f8775d9d9062da662cc861f9ff7722a65896d4cd"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: tpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public()", "id": "2482007", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482007"}, "csaw": false, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's `tpm2-sessions` component. The `tpm2_read_public()` function fails to properly destroy a buffer on certain exit paths, leading to a page allocation leak. This resource exhaustion could allow a local attacker to cause a Denial of Service (DoS)."], "name": "CVE-2026-46096", "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-2026-46096\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46096\nhttps://lore.kernel.org/linux-cve-announce/2026052704-CVE-2026-46096-b0bd@gregkh/T"]}

{"created": "2026-05-27T18:00:15.755743+00:00", "updated": "2026-05-27T18:00:15.755754+00:00", "vendors": []}