CVE-2026-72385

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72385", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.923Z", "datePublished": "2026-08-15T05:56:16.050Z", "dateUpdated": "2026-08-17T05:13:38.517Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:13:38.517Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/fprobe: Fix NULL pointer dereference in fprobe_fgraph_entry()\n\nfprobe_fgraph_entry() sizes a shadow-stack reservation in one walk of\nthe per-ip fprobe list and fills it in a second walk, both under\nrcu_read_lock() only. A fprobe registered on an already-live ip can\nbecome visible between the two walks, so the fill walk processes an\nexit_handler the sizing walk did not count and used runs past\nreserved_words. If the sizing walk counted nothing, fgraph_data is NULL\nand the first write_fprobe_header() faults:\n\n Oops: general protection fault, probably for non-canonical address ...\n KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n RIP: 0010:fprobe_fgraph_entry+0xa38/0xf10 kernel/trace/fprobe.c:167\n Call Trace:\n <TASK>\n function_graph_enter_regs+0x44c/0xa10 kernel/trace/fgraph.c:677\n ftrace_graph_func+0xc5/0x140 arch/x86/kernel/ftrace.c:671\n __kernel_text_address+0x9/0x40 kernel/extable.c:78\n arch_stack_walk+0x117/0x170 arch/x86/kernel/stacktrace.c:26\n kmem_cache_free+0x188/0x580 mm/slub.c:6378\n tcp_data_queue+0x18d/0x6550 net/ipv4/tcp_input.c:5590\n [...]\n </TASK>\n\nThe list cannot be frozen across the two walks, so skip a node that does\nnot fit the reservation and count it as missed."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/fprobe.c"], "versions": [{"version": "4346ba1604093305a287e08eb465a9c15ba05b80", "lessThan": "62988204162fc382cfc7d9a185d40a751261e3a3", "status": "affected", "versionType": "git"}, {"version": "4346ba1604093305a287e08eb465a9c15ba05b80", "lessThan": "d655cca1c6e67eb081214d37eb231a869ead2f97", "status": "affected", "versionType": "git"}, {"version": "4346ba1604093305a287e08eb465a9c15ba05b80", "lessThan": "367c49d6e283c17b56a31e7a8d964a079244264c", "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/trace/fprobe.c"], "versions": [{"version": "6.14", "status": "affected"}, {"version": "0", "lessThan": "6.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.14", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/62988204162fc382cfc7d9a185d40a751261e3a3"}, {"url": "https://git.kernel.org/stable/c/d655cca1c6e67eb081214d37eb231a869ead2f97"}, {"url": "https://git.kernel.org/stable/c/367c49d6e283c17b56a31e7a8d964a079244264c"}], "title": "tracing/fprobe: Fix NULL pointer dereference in fprobe_fgraph_entry()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/trace/fprobe.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "62988204162fc382cfc7d9a185d40a751261e3a3", "status": "affected", "version": "4346ba1604093305a287e08eb465a9c15ba05b80", "versionType": "git"}, {"lessThan": "d655cca1c6e67eb081214d37eb231a869ead2f97", "status": "affected", "version": "4346ba1604093305a287e08eb465a9c15ba05b80", "versionType": "git"}, {"lessThan": "367c49d6e283c17b56a31e7a8d964a079244264c", "status": "affected", "version": "4346ba1604093305a287e08eb465a9c15ba05b80", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/trace/fprobe.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.14"}, {"lessThan": "6.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/fprobe: Fix NULL pointer dereference in fprobe_fgraph_entry()\n\nfprobe_fgraph_entry() sizes a shadow-stack reservation in one walk of\nthe per-ip fprobe list and fills it in a second walk, both under\nrcu_read_lock() only. A fprobe registered on an already-live ip can\nbecome visible between the two walks, so the fill walk processes an\nexit_handler the sizing walk did not count and used runs past\nreserved_words. If the sizing walk counted nothing, fgraph_data is NULL\nand the first write_fprobe_header() faults:\n\n Oops: general protection fault, probably for non-canonical address ...\n KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n RIP: 0010:fprobe_fgraph_entry+0xa38/0xf10 kernel/trace/fprobe.c:167\n Call Trace:\n <TASK>\n function_graph_enter_regs+0x44c/0xa10 kernel/trace/fgraph.c:677\n ftrace_graph_func+0xc5/0x140 arch/x86/kernel/ftrace.c:671\n __kernel_text_address+0x9/0x40 kernel/extable.c:78\n arch_stack_walk+0x117/0x170 arch/x86/kernel/stacktrace.c:26\n kmem_cache_free+0x188/0x580 mm/slub.c:6378\n tcp_data_queue+0x18d/0x6550 net/ipv4/tcp_input.c:5590\n [...]\n </TASK>\n\nThe list cannot be frozen across the two walks, so skip a node that does\nnot fit the reservation and count it as missed."}], "id": "CVE-2026-72385", "lastModified": "2026-08-17T06:18:43.310", "metrics": {}, "published": "2026-08-15T06:22:12.017", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/367c49d6e283c17b56a31e7a8d964a079244264c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/62988204162fc382cfc7d9a185d40a751261e3a3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d655cca1c6e67eb081214d37eb231a869ead2f97"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: tracing/fprobe: Fix NULL pointer dereference in fprobe_fgraph_entry()", "id": "2516433", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516433"}, "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"}, "cwe": "CWE-476", "details": ["A flaw was found in the Linux kernel's `tracing/fprobe` component. A race condition can occur in the `fprobe_fgraph_entry()` function during shadow-stack reservation. If a fprobe is registered on an already-live IP between two processing walks, it can lead to a NULL pointer dereference. This can result in a general protection fault, causing a system crash and a Denial of Service (DoS)."], "name": "CVE-2026-72385", "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72385\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72385\nhttps://lore.kernel.org/linux-cve-announce/2026081518-CVE-2026-72385-542c@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4346ba1604093305a287e08eb465a9c15ba05b80,62988204162fc382cfc7d9a185d40a751261e3a3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4346ba1604093305a287e08eb465a9c15ba05b80,d655cca1c6e67eb081214d37eb231a869ead2f97)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4346ba1604093305a287e08eb465a9c15ba05b80,367c49d6e283c17b56a31e7a8d964a079244264c)"}}], "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": "generic", "value": "6.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc2,*]"}}], "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": "2026-08-15T18:30:12.330439+00:00", "updated": "2026-08-18T14:30:05.127020+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}