{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43124", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.987Z", "datePublished": "2026-05-06T11:27:10.221Z", "dateUpdated": "2026-05-06T11:27:10.221Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-06T11:27:10.221Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npstore: ram_core: fix incorrect success return when vmap() fails\n\nIn persistent_ram_vmap(), vmap() may return NULL on failure.\n\nIf offset is non-zero, adding offset_in_page(start) causes the function\nto return a non-NULL pointer even though the mapping failed.\npersistent_ram_buffer_map() therefore incorrectly returns success.\n\nSubsequent access to prz->buffer may dereference an invalid address\nand cause crashes.\n\nAdd proper NULL checking for vmap() failures."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/pstore/ram_core.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "d47234840aeb4182ed3ee795c578b1dfa9cbd25b", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "49918dd52615097529811d21ec6074dd02ebe77c", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "8baa234181f632cabacf73e4834a910859e9fcc9", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1da904e84de608907662ad8a51ba9c571d61e003", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": 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"versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d47234840aeb4182ed3ee795c578b1dfa9cbd25b"}, {"url": "https://git.kernel.org/stable/c/49918dd52615097529811d21ec6074dd02ebe77c"}, {"url": "https://git.kernel.org/stable/c/8baa234181f632cabacf73e4834a910859e9fcc9"}, {"url": "https://git.kernel.org/stable/c/1da904e84de608907662ad8a51ba9c571d61e003"}, {"url": "https://git.kernel.org/stable/c/8d849adfbc3e98417fb541620568db1a759ef441"}, {"url": "https://git.kernel.org/stable/c/2c99326dc1c79b7ce3c8dd92929b5ce724ff70eb"}, {"url": "https://git.kernel.org/stable/c/88d5b28f63c7aac1271784e3b800ed405d1cde75"}, {"url": "https://git.kernel.org/stable/c/05363abc7625cf18c96e67f50673cd07f11da5e9"}], "title": "pstore: ram_core: fix incorrect success return when vmap() fails", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npstore: ram_core: fix incorrect success return when vmap() fails\n\nIn persistent_ram_vmap(), vmap() may return NULL on failure.\n\nIf offset is non-zero, adding offset_in_page(start) causes the function\nto return a non-NULL pointer even though the mapping failed.\npersistent_ram_buffer_map() therefore incorrectly returns success.\n\nSubsequent access to prz->buffer may dereference an invalid address\nand cause crashes.\n\nAdd proper NULL checking for vmap() failures."}], "id": "CVE-2026-43124", "lastModified": "2026-05-06T13:07:51.607", "metrics": {}, "published": "2026-05-06T12:16:29.313", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/05363abc7625cf18c96e67f50673cd07f11da5e9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1da904e84de608907662ad8a51ba9c571d61e003"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2c99326dc1c79b7ce3c8dd92929b5ce724ff70eb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/49918dd52615097529811d21ec6074dd02ebe77c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/88d5b28f63c7aac1271784e3b800ed405d1cde75"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8baa234181f632cabacf73e4834a910859e9fcc9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8d849adfbc3e98417fb541620568db1a759ef441"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d47234840aeb4182ed3ee795c578b1dfa9cbd25b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: pstore: ram_core: fix incorrect success return when vmap() fails", "id": "2467170", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467170"}, "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-253", "details": ["A flaw was found in the Linux kernel's pstore ram_core component. A local attacker could exploit a vulnerability where the `persistent_ram_buffer_map()` function incorrectly returns success even when the underlying `vmap()` memory mapping operation fails. This occurs if a non-zero offset is used, leading to attempts to access an invalid memory address. Successful exploitation of this flaw would result in a system crash, causing a Denial of Service (DoS)."], "name": "CVE-2026-43124", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "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"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "impact": "moderate", "package_name": "ruby4.0", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43124\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43124\nhttps://lore.kernel.org/linux-cve-announce/2026050619-CVE-2026-43124-8141@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,d47234840aeb4182ed3ee795c578b1dfa9cbd25b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,49918dd52615097529811d21ec6074dd02ebe77c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,8baa234181f632cabacf73e4834a910859e9fcc9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,1da904e84de608907662ad8a51ba9c571d61e003)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,8d849adfbc3e98417fb541620568db1a759ef441)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,2c99326dc1c79b7ce3c8dd92929b5ce724ff70eb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,88d5b28f63c7aac1271784e3b800ed405d1cde75)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,05363abc7625cf18c96e67f50673cd07f11da5e9)"}}], "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": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.252,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.202,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.165,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.128,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.16,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.6,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0,*]"}}], "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": "2026-05-06T15:45:06.332060+00:00", "updated": "2026-05-06T16:30:06.495801+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-390"]}