{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-52976", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-03-27T16:40:15.738Z", "datePublished": "2025-03-27T16:43:16.596Z", "dateUpdated": "2025-03-27T16:43:16.596Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-03-27T16:43:16.596Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nefi: fix potential NULL deref in efi_mem_reserve_persistent\n\nWhen iterating on a linked list, a result of memremap is dereferenced\nwithout checking it for NULL.\n\nThis patch adds a check that falls back on allocating a new page in\ncase memremap doesn't succeed.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\n\n[ardb: return -ENOMEM instead of breaking out of the loop]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/firmware/efi/efi.c"], "versions": [{"version": "18df7577adae6c6c778bf774b3aebcacbc1fb439", "lessThan": "d92a25627bcdf264183670da73c9a60c0bac327e", "status": "affected", "versionType": "git"}, {"version": "18df7577adae6c6c778bf774b3aebcacbc1fb439", "lessThan": "87d4ff18738fd71e7e3c10827c80257da6283697", "status": "affected", "versionType": "git"}, {"version": "18df7577adae6c6c778bf774b3aebcacbc1fb439", "lessThan": "d8fc0b5fb3e816a4a8684bcd3ed02cbef0fce23c", "status": "affected", "versionType": "git"}, {"version": "18df7577adae6c6c778bf774b3aebcacbc1fb439", "lessThan": "a2e6a9ff89f13666a1c3ff7195612ab949ea9afc", "status": "affected", "versionType": "git"}, {"version": "18df7577adae6c6c778bf774b3aebcacbc1fb439", "lessThan": "966d47e1f27c45507c5df82b2a2157e5a4fd3909", "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/firmware/efi/efi.c"], "versions": [{"version": "5.2", "status": "affected"}, {"version": "0", "lessThan": "5.2", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.232", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.168", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.93", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.11", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/d92a25627bcdf264183670da73c9a60c0bac327e"}, {"url": "https://git.kernel.org/stable/c/87d4ff18738fd71e7e3c10827c80257da6283697"}, {"url": "https://git.kernel.org/stable/c/d8fc0b5fb3e816a4a8684bcd3ed02cbef0fce23c"}, {"url": "https://git.kernel.org/stable/c/a2e6a9ff89f13666a1c3ff7195612ab949ea9afc"}, {"url": "https://git.kernel.org/stable/c/966d47e1f27c45507c5df82b2a2157e5a4fd3909"}], "title": "efi: fix potential NULL deref in efi_mem_reserve_persistent", "x_generator": {"engine": "bippy-5f407fcff5a0"}}}}

{}

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{"bugzilla": {"description": "kernel: efi: fix potential NULL deref in efi_mem_reserve_persistent", "id": "2355514", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2355514"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nefi: fix potential NULL deref in efi_mem_reserve_persistent\nWhen iterating on a linked list, a result of memremap is dereferenced\nwithout checking it for NULL.\nThis patch adds a check that falls back on allocating a new page in\ncase memremap doesn't succeed.\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\n[ardb: return -ENOMEM instead of breaking out of the loop]"], "name": "CVE-2023-52976", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-03-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52976\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52976\nhttps://lore.kernel.org/linux-cve-announce/2025032704-CVE-2023-52976-eda3@gregkh/T"], "threat_severity": "Low"}