{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53361", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.400Z", "datePublished": "2026-07-04T11:54:52.543Z", "dateUpdated": "2026-07-04T11:54:52.543Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-04T11:54:52.543Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Set gc_in_progress to true in unix_gc().\n\nIgor Ushakov reported that unix_gc() could run with gc_in_progress\nbeing false if the work is scheduled while running:\n\n Thread 1 Thread 2 Thread 3\n -------- -------- --------\n unix_schedule_gc() unix_schedule_gc()\n `- if (!gc_in_progress) `- if (!gc_in_progress)\n |- gc_in_progress = true |\n `- queue_work() |\n unix_gc() <----------------/ |\n | |- gc_in_progress = true\n ... `- queue_work()\n | |\n `- gc_in_progress = false |\n |\n unix_gc() <---------------------------------------------'\n |\n ... /* gc_in_progress == false */\n |\n `- gc_in_progress = false\n\nunix_peek_fpl() relies on gc_in_progress not to confuse GC\nby MSG_PEEK.\n\nLet's set gc_in_progress to true in unix_gc()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/unix/garbage.c"], "versions": [{"version": "328840c93bd6a4871dd10908d01b41eab83eb8e2", "lessThan": "82c17e13d404f686e164590483fd6c1abaa675d0", "status": "affected", "versionType": "git"}, {"version": "8b90a9f819dc2a06baae4ec1a64d875e53b824ec", "lessThan": "591f1ac217428a6d2b32a8ac14aac0fab44f155a", "status": "affected", "versionType": "git"}, {"version": "8b90a9f819dc2a06baae4ec1a64d875e53b824ec", "lessThan": "0cfa78c050662784fc8e3ab26dbfd1dc632b2082", "status": "affected", "versionType": "git"}, {"version": "8b90a9f819dc2a06baae4ec1a64d875e53b824ec", "lessThan": "d82ba05263c69fa2437fe93e4e561cc40f4c03af", "status": "affected", "versionType": "git"}, {"version": "ceb8bd6c69c1680fd9b45e7f16d7170c9c7513a5", "status": "affected", "versionType": "git"}, {"version": "6.6.93", "lessThan": "6.6.144", "status": "affected", "versionType": "semver"}, {"version": "6.1.141", "lessThan": "6.2", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/unix/garbage.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.144", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.95", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.38", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.6.93", "versionEndExcluding": "6.6.144"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.12.95"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.38"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.141"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/82c17e13d404f686e164590483fd6c1abaa675d0"}, {"url": "https://git.kernel.org/stable/c/591f1ac217428a6d2b32a8ac14aac0fab44f155a"}, {"url": "https://git.kernel.org/stable/c/0cfa78c050662784fc8e3ab26dbfd1dc632b2082"}, {"url": "https://git.kernel.org/stable/c/d82ba05263c69fa2437fe93e4e561cc40f4c03af"}], "title": "af_unix: Set gc_in_progress to true in unix_gc().", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: af_unix: Set gc_in_progress to true in unix_gc()", "id": "2497035", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2497035"}, "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-366", "details": ["In the Linux kernel, the following vulnerability has been resolved:\naf_unix: Set gc_in_progress to true in unix_gc().\nIgor Ushakov reported that unix_gc() could run with gc_in_progress\nbeing false if the work is scheduled while running:\nThread 1 Thread 2 Thread 3\n-------- -------- --------\nunix_schedule_gc() unix_schedule_gc()\n`- if (!gc_in_progress) `- if (!gc_in_progress)\n|- gc_in_progress = true |\n`- queue_work() |\nunix_gc() <----------------/ |\n| |- gc_in_progress = true\n... `- queue_work()\n| |\n`- gc_in_progress = false |\n|\nunix_gc() <---------------------------------------------'\n|\n... /* gc_in_progress == false */\n|\n`- gc_in_progress = false\nunix_peek_fpl() relies on gc_in_progress not to confuse GC\nby MSG_PEEK.\nLet's set gc_in_progress to true in unix_gc().", "A flaw was found in the Linux kernel's `af_unix` component. A race condition exists within the `unix_gc()` garbage collection function where the `gc_in_progress` flag may not be correctly set. This could lead to `unix_peek_fpl()` misinterpreting garbage collection status when handling `MSG_PEEK` operations, potentially causing unexpected behavior or information disclosure to a local attacker."], "name": "CVE-2026-53361", "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": "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": "2026-07-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53361\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53361\nhttps://lore.kernel.org/linux-cve-announce/2026070436-CVE-2026-53361-f969@gregkh/T"], "threat_severity": "Moderate"}