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CVE-2025-37894 (GCVE-0-2025-37894)

Vulnerability from cvelistv5 – Published: 2025-05-20 15:21 – Updated: 2026-08-05 11:58
VLAI
Title
net: use sock_gen_put() when sk_state is TCP_TIME_WAIT
Summary
In the Linux kernel, the following vulnerability has been resolved: net: use sock_gen_put() when sk_state is TCP_TIME_WAIT It is possible for a pointer of type struct inet_timewait_sock to be returned from the functions __inet_lookup_established() and __inet6_lookup_established(). This can cause a crash when the returned pointer is of type struct inet_timewait_sock and sock_put() is called on it. The following is a crash call stack that shows sk->sk_wmem_alloc being accessed in sk_free() during the call to sock_put() on a struct inet_timewait_sock pointer. To avoid this issue, use sock_gen_put() instead of sock_put() when sk->sk_state is TCP_TIME_WAIT. mrdump.ko ipanic() + 120 vmlinux notifier_call_chain(nr_to_call=-1, nr_calls=0) + 132 vmlinux atomic_notifier_call_chain(val=0) + 56 vmlinux panic() + 344 vmlinux add_taint() + 164 vmlinux end_report() + 136 vmlinux kasan_report(size=0) + 236 vmlinux report_tag_fault() + 16 vmlinux do_tag_recovery() + 16 vmlinux __do_kernel_fault() + 88 vmlinux do_bad_area() + 28 vmlinux do_tag_check_fault() + 60 vmlinux do_mem_abort() + 80 vmlinux el1_abort() + 56 vmlinux el1h_64_sync_handler() + 124 vmlinux > 0xFFFFFFC080011294() vmlinux __lse_atomic_fetch_add_release(v=0xF2FFFF82A896087C) vmlinux __lse_atomic_fetch_sub_release(v=0xF2FFFF82A896087C) vmlinux arch_atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C) + 8 vmlinux raw_atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C) + 8 vmlinux atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C) + 8 vmlinux __refcount_sub_and_test(i=1, r=0xF2FFFF82A896087C, oldp=0) + 8 vmlinux __refcount_dec_and_test(r=0xF2FFFF82A896087C, oldp=0) + 8 vmlinux refcount_dec_and_test(r=0xF2FFFF82A896087C) + 8 vmlinux sk_free(sk=0xF2FFFF82A8960700) + 28 vmlinux sock_put() + 48 vmlinux tcp6_check_fraglist_gro() + 236 vmlinux tcp6_gro_receive() + 624 vmlinux ipv6_gro_receive() + 912 vmlinux dev_gro_receive() + 1116 vmlinux napi_gro_receive() + 196 ccmni.ko ccmni_rx_callback() + 208 ccmni.ko ccmni_queue_recv_skb() + 388 ccci_dpmaif.ko dpmaif_rxq_push_thread() + 1088 vmlinux kthread() + 268 vmlinux 0xFFFFFFC08001F30C()
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c9d1d23e5239f41700be69133a5769ac5ebc88a8 , < c0dba059b118b5206e755042b15b49368a388898 (git)
Affected: c9d1d23e5239f41700be69133a5769ac5ebc88a8 , < 786650e644c5b1c063921799ca203c0b8670d79a (git)
Affected: c9d1d23e5239f41700be69133a5769ac5ebc88a8 , < f920436a44295ca791ebb6dae3f4190142eec703 (git)
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Linux Linux Affected: 6.10
Unaffected: 0 , < 6.10 (semver)
Unaffected: 6.12.28 , ≤ 6.12.* (semver)
Unaffected: 6.14.6 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv4/tcp_offload.c",
            "net/ipv6/tcpv6_offload.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c0dba059b118b5206e755042b15b49368a388898",
              "status": "affected",
              "version": "c9d1d23e5239f41700be69133a5769ac5ebc88a8",
              "versionType": "git"
            },
            {
              "lessThan": "786650e644c5b1c063921799ca203c0b8670d79a",
              "status": "affected",
              "version": "c9d1d23e5239f41700be69133a5769ac5ebc88a8",
              "versionType": "git"
            },
            {
              "lessThan": "f920436a44295ca791ebb6dae3f4190142eec703",
              "status": "affected",
              "version": "c9d1d23e5239f41700be69133a5769ac5ebc88a8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ipv4/tcp_offload.c",
            "net/ipv6/tcpv6_offload.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.28",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.28",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.6",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: use sock_gen_put() when sk_state is TCP_TIME_WAIT\n\nIt is possible for a pointer of type struct inet_timewait_sock to be\nreturned from the functions __inet_lookup_established() and\n__inet6_lookup_established(). This can cause a crash when the\nreturned pointer is of type struct inet_timewait_sock and\nsock_put() is called on it. The following is a crash call stack that\nshows sk-\u003esk_wmem_alloc being accessed in sk_free() during the call to\nsock_put() on a struct inet_timewait_sock pointer. To avoid this issue,\nuse sock_gen_put() instead of sock_put() when sk-\u003esk_state\nis TCP_TIME_WAIT.\n\nmrdump.ko        ipanic() + 120\nvmlinux          notifier_call_chain(nr_to_call=-1, nr_calls=0) + 132\nvmlinux          atomic_notifier_call_chain(val=0) + 56\nvmlinux          panic() + 344\nvmlinux          add_taint() + 164\nvmlinux          end_report() + 136\nvmlinux          kasan_report(size=0) + 236\nvmlinux          report_tag_fault() + 16\nvmlinux          do_tag_recovery() + 16\nvmlinux          __do_kernel_fault() + 88\nvmlinux          do_bad_area() + 28\nvmlinux          do_tag_check_fault() + 60\nvmlinux          do_mem_abort() + 80\nvmlinux          el1_abort() + 56\nvmlinux          el1h_64_sync_handler() + 124\nvmlinux        \u003e 0xFFFFFFC080011294()\nvmlinux          __lse_atomic_fetch_add_release(v=0xF2FFFF82A896087C)\nvmlinux          __lse_atomic_fetch_sub_release(v=0xF2FFFF82A896087C)\nvmlinux          arch_atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C)\n+ 8\nvmlinux          raw_atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C)\n+ 8\nvmlinux          atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C) + 8\nvmlinux          __refcount_sub_and_test(i=1, r=0xF2FFFF82A896087C,\noldp=0) + 8\nvmlinux          __refcount_dec_and_test(r=0xF2FFFF82A896087C, oldp=0) + 8\nvmlinux          refcount_dec_and_test(r=0xF2FFFF82A896087C) + 8\nvmlinux          sk_free(sk=0xF2FFFF82A8960700) + 28\nvmlinux          sock_put() + 48\nvmlinux          tcp6_check_fraglist_gro() + 236\nvmlinux          tcp6_gro_receive() + 624\nvmlinux          ipv6_gro_receive() + 912\nvmlinux          dev_gro_receive() + 1116\nvmlinux          napi_gro_receive() + 196\nccmni.ko         ccmni_rx_callback() + 208\nccmni.ko         ccmni_queue_recv_skb() + 388\nccci_dpmaif.ko   dpmaif_rxq_push_thread() + 1088\nvmlinux          kthread() + 268\nvmlinux          0xFFFFFFC08001F30C()"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable code executes in the GRO packet-receive softirq path (`napi_gro_receive` \u2192 `ipv4/ipv6_gro_receive` \u2192 `tcp4/6_gro_receive` \u2192 `tcp4/6_check_fraglist_gro`), triggered purely by TCP segments arriving from the network. The reported real-world crash occurred on a modem/WAN interface receiving internet traffic.\nAC:L - The attacker controls both sides of the race \u2014 it creates the TIME_WAIT sockets by opening and closing connections, deterministically tears them down on demand by sending an RST or out-of-window SYN for the same 4-tuple (`TCP_TW_RST`/`TCP_TW_SYN` \u2192 `inet_twsk_deschedule_put()`), and concurrently floods matching segments that drive the GRO lookup on other RX queues, so the final `sock_put()` reliably lands on a dying twsk. It can also groom the dedicated `tw_sock_TCP` slab to place a chosen victim object next to the out-of-bounds decrement.\nPR:N - No credentials or privileges of any kind are needed \u2014 GRO processing happens in softirq on raw received packets long before any socket-level authentication or delivery, and creating TIME_WAIT state only requires connecting to any reachable TCP port or emitting traffic through the box.\nUI:N - Exploitation is fully driven by attacker-transmitted packets; no local user action, mount, or file access is required.\nS:U - The out-of-bounds decrement, the potential indirect call, and the resulting corruption are all confined to the kernel\u0027s own memory and security authority, with no crossing into a hypervisor, IOMMU, or other security scope.\nC:H - The mistyped free reads far past the 264-byte timewait object \u2014 `sk_prot_creator` at +600 and `sk_destruct` at +736 \u2014 and the corrupted neighbouring `hlist_nulls` pointers turn subsequent ehash walks into reads of attacker-influenced addresses, giving a path to arbitrary kernel memory disclosure.\nI:H - `sk_free()` performs an atomic 32-bit read-modify-write 116 bytes out of bounds into an adjacent live `tcp_timewait_sock`, corrupting its hash-list pointers, which are later written through by `sk_nulls_del_node_init_rcu()`; if the OOB word reads 1, `__sk_destruct()` additionally makes an indirect call through a function pointer sourced from out-of-bounds heap data, yielding a control-flow hijack primitive.\nA:H - The bug was reported as a confirmed kernel panic (KASAN/MTE tag-check fault in `sk_free()` \u2192 `panic()`), and a remote unauthenticated attacker can retrigger the out-of-bounds refcount decrement repeatedly, crashing the machine at will."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:58:09.042Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c0dba059b118b5206e755042b15b49368a388898"
        },
        {
          "url": "https://git.kernel.org/stable/c/786650e644c5b1c063921799ca203c0b8670d79a"
        },
        {
          "url": "https://git.kernel.org/stable/c/f920436a44295ca791ebb6dae3f4190142eec703"
        }
      ],
      "title": "net: use sock_gen_put() when sk_state is TCP_TIME_WAIT",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37894",
    "datePublished": "2025-05-20T15:21:31.283Z",
    "dateReserved": "2025-04-16T04:51:23.964Z",
    "dateUpdated": "2026-08-05T11:58:09.042Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-37894",
      "date": "2026-09-16",
      "epss": "0.00451",
      "percentile": "0.3831"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-37894\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-20T16:15:25.760\",\"lastModified\":\"2026-07-30T06:22:30.230\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: use sock_gen_put() when sk_state is TCP_TIME_WAIT\\n\\nIt is possible for a pointer of type struct inet_timewait_sock to be\\nreturned from the functions __inet_lookup_established() and\\n__inet6_lookup_established(). This can cause a crash when the\\nreturned pointer is of type struct inet_timewait_sock and\\nsock_put() is called on it. The following is a crash call stack that\\nshows sk-\u003esk_wmem_alloc being accessed in sk_free() during the call to\\nsock_put() on a struct inet_timewait_sock pointer. To avoid this issue,\\nuse sock_gen_put() instead of sock_put() when sk-\u003esk_state\\nis TCP_TIME_WAIT.\\n\\nmrdump.ko        ipanic() + 120\\nvmlinux          notifier_call_chain(nr_to_call=-1, nr_calls=0) + 132\\nvmlinux          atomic_notifier_call_chain(val=0) + 56\\nvmlinux          panic() + 344\\nvmlinux          add_taint() + 164\\nvmlinux          end_report() + 136\\nvmlinux          kasan_report(size=0) + 236\\nvmlinux          report_tag_fault() + 16\\nvmlinux          do_tag_recovery() + 16\\nvmlinux          __do_kernel_fault() + 88\\nvmlinux          do_bad_area() + 28\\nvmlinux          do_tag_check_fault() + 60\\nvmlinux          do_mem_abort() + 80\\nvmlinux          el1_abort() + 56\\nvmlinux          el1h_64_sync_handler() + 124\\nvmlinux        \u003e 0xFFFFFFC080011294()\\nvmlinux          __lse_atomic_fetch_add_release(v=0xF2FFFF82A896087C)\\nvmlinux          __lse_atomic_fetch_sub_release(v=0xF2FFFF82A896087C)\\nvmlinux          arch_atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C)\\n+ 8\\nvmlinux          raw_atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C)\\n+ 8\\nvmlinux          atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C) + 8\\nvmlinux          __refcount_sub_and_test(i=1, r=0xF2FFFF82A896087C,\\noldp=0) + 8\\nvmlinux          __refcount_dec_and_test(r=0xF2FFFF82A896087C, oldp=0) + 8\\nvmlinux          refcount_dec_and_test(r=0xF2FFFF82A896087C) + 8\\nvmlinux          sk_free(sk=0xF2FFFF82A8960700) + 28\\nvmlinux          sock_put() + 48\\nvmlinux          tcp6_check_fraglist_gro() + 236\\nvmlinux          tcp6_gro_receive() + 624\\nvmlinux          ipv6_gro_receive() + 912\\nvmlinux          dev_gro_receive() + 1116\\nvmlinux          napi_gro_receive() + 196\\nccmni.ko         ccmni_rx_callback() + 208\\nccmni.ko         ccmni_queue_recv_skb() + 388\\nccci_dpmaif.ko   dpmaif_rxq_push_thread() + 1088\\nvmlinux          kthread() + 268\\nvmlinux          0xFFFFFFC08001F30C()\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: usar sock_gen_put() cuando sk_state es TCP_TIME_WAIT Es posible que un puntero de tipo struct inet_timewait_sock sea devuelto desde las funciones __inet_lookup_established() y __inet6_lookup_established(). Esto puede causar un bloqueo cuando el puntero devuelto es de tipo struct inet_timewait_sock y se llama a sock_put() en \u00e9l. La siguiente es una pila de llamadas de bloqueo que muestra que se accede a sk-\u0026gt;sk_wmem_alloc en sk_free() durante la llamada a sock_put() en un puntero struct inet_timewait_sock. Para evitar este problema, use sock_gen_put() en lugar de sock_put() cuando sk-\u0026gt;sk_state es TCP_TIME_WAIT. mrdump.ko ipanic() + 120 vmlinux notifier_call_chain(nr_to_call=-1, nr_calls=0) + 132 vmlinux atomic_notifier_call_chain(val=0) + 56 vmlinux panic() + 344 vmlinux add_taint() + 164 vmlinux end_report() + 136 vmlinux kasan_report(size=0) + 236 vmlinux report_tag_fault() + 16 vmlinux do_tag_recovery() + 16 vmlinux __do_kernel_fault() + 88 vmlinux do_bad_area() + 28 vmlinux do_tag_check_fault() + 60 vmlinux do_mem_abort() + 80 vmlinux el1_abort() + 56 vmlinux el1h_64_sync_handler() + 124 vmlinux \u0026gt; 0xFFFFFFC080011294() vmlinux __lse_atomic_fetch_add_release(v=0xF2FFFF82A896087C) vmlinux __lse_atomic_fetch_sub_release(v=0xF2FFFF82A896087C) vmlinux arch_atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C) + 8 vmlinux raw_atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C) + 8 vmlinux atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C) + 8 vmlinux __refcount_sub_and_test(i=1, r=0xF2FFFF82A896087C, p anterior=0) + 8 vmlinux __refcount_dec_and_test(r=0xF2FFFF82A896087C, p anterior=0) + 8 vmlinux refcount_dec_and_test(r=0xF2FFFF82A896087C) + 8 vmlinux sk_free(sk=0xF2FFFF82A8960700) + 28 vmlinux sock_put() + 48 vmlinux tcp6_check_fraglist_gro() + 236 vmlinux tcp6_gro_receive() + 624 vmlinux ipv6_gro_receive() + 912 vmlinux dev_gro_receive() + 1116 vmlinux napi_gro_receive() + 196 ccmni.ko ccmni_rx_callback() + 208 ccmni.ko ccmni_queue_recv_skb() + 388 ccci_dpmaif.ko dpmaif_rxq_push_thread() + 1088 vmlinux kthread() + 268 vmlinux 0xFFFFFFC08001F30C()\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/ipv4/tcp_offload.c\",\"net/ipv6/tcpv6_offload.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"c9d1d23e5239f41700be69133a5769ac5ebc88a8\",\"lessThan\":\"c0dba059b118b5206e755042b15b49368a388898\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c9d1d23e5239f41700be69133a5769ac5ebc88a8\",\"lessThan\":\"786650e644c5b1c063921799ca203c0b8670d79a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c9d1d23e5239f41700be69133a5769ac5ebc88a8\",\"lessThan\":\"f920436a44295ca791ebb6dae3f4190142eec703\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/ipv4/tcp_offload.c\",\"net/ipv6/tcpv6_offload.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.10\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.10\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.28\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.14.6\",\"lessThanOrEqual\":\"6.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.15\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.10\",\"versionEndExcluding\":\"6.12.28\",\"matchCriteriaId\":\"302ECAAE-A0A0-4B20-8159-4BB8716F037C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.14.6\",\"matchCriteriaId\":\"19E5095E-5950-43EA-8E78-FC860855293F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"8D465631-2980-487A-8E65-40AE2B9F8ED1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4C9D071F-B28E-46EC-AC61-22B913390211\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"13FC0DDE-E513-465E-9E81-515702D49B74\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"8C7B5B0E-4EEB-48F5-B4CF-0935A7633845\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/786650e644c5b1c063921799ca203c0b8670d79a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c0dba059b118b5206e755042b15b49368a388898\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f920436a44295ca791ebb6dae3f4190142eec703\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-30T09:32:22+00:00",
      "cve": "CVE-2025-37894",
      "id": "CVE-2025-37894",
      "initial_release_date": "2025-05-20T00:00:00+00:00",
      "product_status:known_affected": "104",
      "product_status:known_not_affected": "170",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: net: Use-after-free in TCP_TIME_WAIT state leading to a crash.",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-37894.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-30T01:58:38Z",
      "cve": "CVE-2025-37894",
      "id": "CVE-2025-37894",
      "initial_release_date": "2025-05-21T00:47:32Z",
      "product_status:known_not_affected": "505",
      "product_status:recommended": "78",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-37894",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-37894.json",
      "version": "16"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.