{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53095", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.384Z", "datePublished": "2026-06-24T16:30:33.684Z", "dateUpdated": "2026-06-24T16:30:33.684Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-24T16:30:33.684Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix abuse of kprobe_write_ctx via freplace\n\nuprobe programs are allowed to modify struct pt_regs.\n\nSince the actual program type of uprobe is KPROBE, it can be abused to\nmodify struct pt_regs via kprobe+freplace when the kprobe attaches to\nkernel functions.\n\nFor example,\n\nSEC(\"?kprobe\")\nint kprobe(struct pt_regs *regs)\n{\n\treturn 0;\n}\n\nSEC(\"?freplace\")\nint freplace_kprobe(struct pt_regs *regs)\n{\n\tregs->di = 0;\n\treturn 0;\n}\n\nfreplace_kprobe prog will attach to kprobe prog.\nkprobe prog will attach to a kernel function.\n\nWithout this patch, when the kernel function runs, its first arg will\nalways be set as 0 via the freplace_kprobe prog.\n\nTo fix the abuse of kprobe_write_ctx=true via kprobe+freplace, disallow\nattaching freplace programs on kprobe programs with different\nkprobe_write_ctx values."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/syscall.c"], "versions": [{"version": "7384893d970ea114952aef54ad7e3d7d2ca82d4f", "lessThan": "b312cf41b9e43f442613053f6cad39898e1baf96", "status": "affected", "versionType": "git"}, {"version": "7384893d970ea114952aef54ad7e3d7d2ca82d4f", "lessThan": "9836cadbd96c7e0dbb0018fa60e7872dd31ac4f8", "status": "affected", "versionType": "git"}, {"version": "7384893d970ea114952aef54ad7e3d7d2ca82d4f", "lessThan": "611fe4b79af72d00d80f2223354284447daafae9", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/syscall.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "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": "6.18", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b312cf41b9e43f442613053f6cad39898e1baf96"}, {"url": "https://git.kernel.org/stable/c/9836cadbd96c7e0dbb0018fa60e7872dd31ac4f8"}, {"url": "https://git.kernel.org/stable/c/611fe4b79af72d00d80f2223354284447daafae9"}], "title": "bpf: Fix abuse of kprobe_write_ctx via freplace", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{}

{"bugzilla": {"description": "kernel: bpf: Fix abuse of kprobe_write_ctx via freplace", "id": "2492291", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492291"}, "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-94", "details": ["A flaw was found in the Linux kernel. This vulnerability allows for the abuse of the `kprobe_write_ctx` mechanism through `freplace` in Berkeley Packet Filter (BPF) kprobe programs. A local attacker could exploit this by attaching a `freplace` program to a `kprobe` program that is attached to a kernel function. This could lead to the modification of the kernel function's arguments, specifically setting the first argument to zero, potentially causing unexpected system behavior or impacting data integrity."], "name": "CVE-2026-53095", "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": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53095\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53095\nhttps://lore.kernel.org/linux-cve-announce/2026062410-CVE-2026-53095-5229@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7384893d970ea114952aef54ad7e3d7d2ca82d4f,b312cf41b9e43f442613053f6cad39898e1baf96)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7384893d970ea114952aef54ad7e3d7d2ca82d4f,9836cadbd96c7e0dbb0018fa60e7872dd31ac4f8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7384893d970ea114952aef54ad7e3d7d2ca82d4f,611fe4b79af72d00d80f2223354284447daafae9)"}}], "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": "affected", "versions": {"scheme": "semver", "value": "6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.33,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-06-24T20:00:10.389556+00:00", "updated": "2026-06-25T16:30:15.470654+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}