CVE-2025-38035 (GCVE-0-2025-38035)

Vulnerability from cvelistv5 – Published: 2025-06-18 09:33 – Updated: 2026-08-05 11:59
VLAI
Title
nvmet-tcp: don't restore null sk_state_change
Summary
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: don't restore null sk_state_change queue->state_change is set as part of nvmet_tcp_set_queue_sock(), but if the TCP connection isn't established when nvmet_tcp_set_queue_sock() is called then queue->state_change isn't set and sock->sk->sk_state_change isn't replaced. As such we don't need to restore sock->sk->sk_state_change if queue->state_change is NULL. This avoids NULL pointer dereferences such as this: [ 286.462026][ C0] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 286.462814][ C0] #PF: supervisor instruction fetch in kernel mode [ 286.463796][ C0] #PF: error_code(0x0010) - not-present page [ 286.464392][ C0] PGD 8000000140620067 P4D 8000000140620067 PUD 114201067 PMD 0 [ 286.465086][ C0] Oops: Oops: 0010 [#1] SMP KASAN PTI [ 286.465559][ C0] CPU: 0 UID: 0 PID: 1628 Comm: nvme Not tainted 6.15.0-rc2+ #11 PREEMPT(voluntary) [ 286.466393][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014 [ 286.467147][ C0] RIP: 0010:0x0 [ 286.467420][ C0] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 286.467977][ C0] RSP: 0018:ffff8883ae008580 EFLAGS: 00010246 [ 286.468425][ C0] RAX: 0000000000000000 RBX: ffff88813fd34100 RCX: ffffffffa386cc43 [ 286.469019][ C0] RDX: 1ffff11027fa68b6 RSI: 0000000000000008 RDI: ffff88813fd34100 [ 286.469545][ C0] RBP: ffff88813fd34160 R08: 0000000000000000 R09: ffffed1027fa682c [ 286.470072][ C0] R10: ffff88813fd34167 R11: 0000000000000000 R12: ffff88813fd344c3 [ 286.470585][ C0] R13: ffff88813fd34112 R14: ffff88813fd34aec R15: ffff888132cdd268 [ 286.471070][ C0] FS: 00007fe3c04c7d80(0000) GS:ffff88840743f000(0000) knlGS:0000000000000000 [ 286.471644][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.472543][ C0] CR2: ffffffffffffffd6 CR3: 000000012daca000 CR4: 00000000000006f0 [ 286.473500][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 286.474467][ C0] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7: 0000000000000400 [ 286.475453][ C0] Call Trace: [ 286.476102][ C0] <IRQ> [ 286.476719][ C0] tcp_fin+0x2bb/0x440 [ 286.477429][ C0] tcp_data_queue+0x190f/0x4e60 [ 286.478174][ C0] ? __build_skb_around+0x234/0x330 [ 286.478940][ C0] ? rcu_is_watching+0x11/0xb0 [ 286.479659][ C0] ? __pfx_tcp_data_queue+0x10/0x10 [ 286.480431][ C0] ? tcp_try_undo_loss+0x640/0x6c0 [ 286.481196][ C0] ? seqcount_lockdep_reader_access.constprop.0+0x82/0x90 [ 286.482046][ C0] ? kvm_clock_get_cycles+0x14/0x30 [ 286.482769][ C0] ? ktime_get+0x66/0x150 [ 286.483433][ C0] ? rcu_is_watching+0x11/0xb0 [ 286.484146][ C0] tcp_rcv_established+0x6e4/0x2050 [ 286.484857][ C0] ? rcu_is_watching+0x11/0xb0 [ 286.485523][ C0] ? ipv4_dst_check+0x160/0x2b0 [ 286.486203][ C0] ? __pfx_tcp_rcv_established+0x10/0x10 [ 286.486917][ C0] ? lock_release+0x217/0x2c0 [ 286.487595][ C0] tcp_v4_do_rcv+0x4d6/0x9b0 [ 286.488279][ C0] tcp_v4_rcv+0x2af8/0x3e30 [ 286.488904][ C0] ? raw_local_deliver+0x51b/0xad0 [ 286.489551][ C0] ? rcu_is_watching+0x11/0xb0 [ 286.490198][ C0] ? __pfx_tcp_v4_rcv+0x10/0x10 [ 286.490813][ C0] ? __pfx_raw_local_deliver+0x10/0x10 [ 286.491487][ C0] ? __pfx_nf_confirm+0x10/0x10 [nf_conntrack] [ 286.492275][ C0] ? rcu_is_watching+0x11/0xb0 [ 286.492900][ C0] ip_protocol_deliver_rcu+0x8f/0x370 [ 286.493579][ C0] ip_local_deliver_finish+0x297/0x420 [ 286.494268][ C0] ip_local_deliver+0x168/0x430 [ 286.494867][ C0] ? __pfx_ip_local_deliver+0x10/0x10 [ 286.495498][ C0] ? __pfx_ip_local_deliver_finish+0x10/0x10 [ 286.496204][ C0] ? ip_rcv_finish_core+0x19a/0x1f20 [ 286.496806][ C0] ? lock_release+0x217/0x2c0 [ 286.497414][ C0] ip_rcv+0x455/0x6e0 [ 286.497945][ C0] ? __pfx_ip_rcv+0x10/0x10 [ ---truncated---
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < 6265538446e2426f4bf3b57e91d7680b2047ddd9 (git)
Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < 17e58be5b49f58bf17799a504f55c2d05ab2ecdc (git)
Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < fc01b547c3f8bfa6e1d23cd5a2c63c736e8c3e4e (git)
Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < c240375587ddcc80e1022f52ee32b946bbc3a639 (git)
Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < 3a982ada411b8c52695f1784c3f4784771f30209 (git)
Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < ec462449f4cf616b0aa2ed119f5f44b5fdfcefab (git)
Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < a21cb31642ffc84ca4ce55028212a96f72f54d30 (git)
Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < 46d22b47df2741996af277a2838b95f130436c13 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 5.4.294 , ≤ 5.4.* (semver)
Unaffected: 5.10.238 , ≤ 5.10.* (semver)
Unaffected: 5.15.185 , ≤ 5.15.* (semver)
Unaffected: 6.1.141 , ≤ 6.1.* (semver)
Unaffected: 6.6.93 , ≤ 6.6.* (semver)
Unaffected: 6.12.31 , ≤ 6.12.* (semver)
Unaffected: 6.14.9 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
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          "dateUpdated": "2025-11-03T17:33:14.487Z",
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        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
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          "product": "Linux",
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          "vendor": "Linux",
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              "version": "5.0"
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              "version": "0",
              "versionType": "semver"
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              "version": "5.4.294",
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              "version": "5.10.238",
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              "status": "unaffected",
              "version": "6.6.93",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.31",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.9",
              "versionType": "semver"
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            {
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              "version": "6.15",
              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.294",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.238",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
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                {
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                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.141",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
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                {
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                  "versionEndExcluding": "6.6.93",
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                  "vulnerable": true
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                {
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                {
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                  "versionEndExcluding": "6.14.9",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-tcp: don\u0027t restore null sk_state_change\n\nqueue-\u003estate_change is set as part of nvmet_tcp_set_queue_sock(), but if\nthe TCP connection isn\u0027t established when nvmet_tcp_set_queue_sock() is\ncalled then queue-\u003estate_change isn\u0027t set and sock-\u003esk-\u003esk_state_change\nisn\u0027t replaced.\n\nAs such we don\u0027t need to restore sock-\u003esk-\u003esk_state_change if\nqueue-\u003estate_change is NULL.\n\nThis avoids NULL pointer dereferences such as this:\n\n[  286.462026][    C0] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[  286.462814][    C0] #PF: supervisor instruction fetch in kernel mode\n[  286.463796][    C0] #PF: error_code(0x0010) - not-present page\n[  286.464392][    C0] PGD 8000000140620067 P4D 8000000140620067 PUD 114201067 PMD 0\n[  286.465086][    C0] Oops: Oops: 0010 [#1] SMP KASAN PTI\n[  286.465559][    C0] CPU: 0 UID: 0 PID: 1628 Comm: nvme Not tainted 6.15.0-rc2+ #11 PREEMPT(voluntary)\n[  286.466393][    C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014\n[  286.467147][    C0] RIP: 0010:0x0\n[  286.467420][    C0] Code: Unable to access opcode bytes at 0xffffffffffffffd6.\n[  286.467977][    C0] RSP: 0018:ffff8883ae008580 EFLAGS: 00010246\n[  286.468425][    C0] RAX: 0000000000000000 RBX: ffff88813fd34100 RCX: ffffffffa386cc43\n[  286.469019][    C0] RDX: 1ffff11027fa68b6 RSI: 0000000000000008 RDI: ffff88813fd34100\n[  286.469545][    C0] RBP: ffff88813fd34160 R08: 0000000000000000 R09: ffffed1027fa682c\n[  286.470072][    C0] R10: ffff88813fd34167 R11: 0000000000000000 R12: ffff88813fd344c3\n[  286.470585][    C0] R13: ffff88813fd34112 R14: ffff88813fd34aec R15: ffff888132cdd268\n[  286.471070][    C0] FS:  00007fe3c04c7d80(0000) GS:ffff88840743f000(0000) knlGS:0000000000000000\n[  286.471644][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  286.472543][    C0] CR2: ffffffffffffffd6 CR3: 000000012daca000 CR4: 00000000000006f0\n[  286.473500][    C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  286.474467][    C0] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7: 0000000000000400\n[  286.475453][    C0] Call Trace:\n[  286.476102][    C0]  \u003cIRQ\u003e\n[  286.476719][    C0]  tcp_fin+0x2bb/0x440\n[  286.477429][    C0]  tcp_data_queue+0x190f/0x4e60\n[  286.478174][    C0]  ? __build_skb_around+0x234/0x330\n[  286.478940][    C0]  ? rcu_is_watching+0x11/0xb0\n[  286.479659][    C0]  ? __pfx_tcp_data_queue+0x10/0x10\n[  286.480431][    C0]  ? tcp_try_undo_loss+0x640/0x6c0\n[  286.481196][    C0]  ? seqcount_lockdep_reader_access.constprop.0+0x82/0x90\n[  286.482046][    C0]  ? kvm_clock_get_cycles+0x14/0x30\n[  286.482769][    C0]  ? ktime_get+0x66/0x150\n[  286.483433][    C0]  ? rcu_is_watching+0x11/0xb0\n[  286.484146][    C0]  tcp_rcv_established+0x6e4/0x2050\n[  286.484857][    C0]  ? rcu_is_watching+0x11/0xb0\n[  286.485523][    C0]  ? ipv4_dst_check+0x160/0x2b0\n[  286.486203][    C0]  ? __pfx_tcp_rcv_established+0x10/0x10\n[  286.486917][    C0]  ? lock_release+0x217/0x2c0\n[  286.487595][    C0]  tcp_v4_do_rcv+0x4d6/0x9b0\n[  286.488279][    C0]  tcp_v4_rcv+0x2af8/0x3e30\n[  286.488904][    C0]  ? raw_local_deliver+0x51b/0xad0\n[  286.489551][    C0]  ? rcu_is_watching+0x11/0xb0\n[  286.490198][    C0]  ? __pfx_tcp_v4_rcv+0x10/0x10\n[  286.490813][    C0]  ? __pfx_raw_local_deliver+0x10/0x10\n[  286.491487][    C0]  ? __pfx_nf_confirm+0x10/0x10 [nf_conntrack]\n[  286.492275][    C0]  ? rcu_is_watching+0x11/0xb0\n[  286.492900][    C0]  ip_protocol_deliver_rcu+0x8f/0x370\n[  286.493579][    C0]  ip_local_deliver_finish+0x297/0x420\n[  286.494268][    C0]  ip_local_deliver+0x168/0x430\n[  286.494867][    C0]  ? __pfx_ip_local_deliver+0x10/0x10\n[  286.495498][    C0]  ? __pfx_ip_local_deliver_finish+0x10/0x10\n[  286.496204][    C0]  ? ip_rcv_finish_core+0x19a/0x1f20\n[  286.496806][    C0]  ? lock_release+0x217/0x2c0\n[  286.497414][    C0]  ip_rcv+0x455/0x6e0\n[  286.497945][    C0]  ? __pfx_ip_rcv+0x10/0x10\n[ \n---truncated---"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable code is in the in-kernel NVMe-over-TCP target (nvmet-tcp), driven entirely by an inbound TCP connection to the exported NVMe port; the trigger is a remote peer\u0027s TLS handshake behavior plus subsequent TCP segments/FIN. No local access is needed.\nAC:L - The attacker controls both sides \u2014 deliberately failing (or stalling) the TLS handshake reliably NULLs the socket callbacks, and streaming data or sending a FIN during the multi-millisecond teardown window reliably lands the NULL indirect call, with unlimited retries across new connections.\nPR:N - The bug is reached precisely because the TLS handshake never succeeded, so the attacker is unauthenticated at both the TLS and NVMe-oF layers; no credentials, keys, or host authorization are required to reach nvmet_tcp_alloc_queue() and the failure path.\nUI:N - Exploitation requires only that the attacker open a TCP connection to the NVMe target port; no action by any local user or administrator on the victim is needed.\nS:U - The NULL function-pointer dereference occurs in kernel softirq context and affects only the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:N - The defect is a call through a NULL function pointer with no out-of-bounds or freed memory access, giving the attacker no read primitive and disclosing no kernel data.\nI:N - No memory is corrupted and no attacker-controlled write occurs \u2014 the socket callback fields are only set to NULL by the kernel itself, providing no path to modify kernel data or hijack control flow.\nA:H - The NULL instruction fetch oopses inside softirq/IRQ context (tcp_fin/tcp_data_queue), producing a kernel oops-in-interrupt that panics the machine or wedges network processing, and it can be re-triggered at will by a remote unauthenticated peer."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:59:04.191Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6265538446e2426f4bf3b57e91d7680b2047ddd9"
        },
        {
          "url": "https://git.kernel.org/stable/c/17e58be5b49f58bf17799a504f55c2d05ab2ecdc"
        },
        {
          "url": "https://git.kernel.org/stable/c/fc01b547c3f8bfa6e1d23cd5a2c63c736e8c3e4e"
        },
        {
          "url": "https://git.kernel.org/stable/c/c240375587ddcc80e1022f52ee32b946bbc3a639"
        },
        {
          "url": "https://git.kernel.org/stable/c/3a982ada411b8c52695f1784c3f4784771f30209"
        },
        {
          "url": "https://git.kernel.org/stable/c/ec462449f4cf616b0aa2ed119f5f44b5fdfcefab"
        },
        {
          "url": "https://git.kernel.org/stable/c/a21cb31642ffc84ca4ce55028212a96f72f54d30"
        },
        {
          "url": "https://git.kernel.org/stable/c/46d22b47df2741996af277a2838b95f130436c13"
        }
      ],
      "title": "nvmet-tcp: don\u0027t restore null sk_state_change",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38035",
    "datePublished": "2025-06-18T09:33:22.244Z",
    "dateReserved": "2025-04-16T04:51:23.978Z",
    "dateUpdated": "2026-08-05T11:59:04.191Z",
    "state": "PUBLISHED"
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-tcp: don\u0027t restore null sk_state_change\n\nqueue-\u003estate_change is set as part of nvmet_tcp_set_queue_sock(), but if\nthe TCP connection isn\u0027t established when nvmet_tcp_set_queue_sock() is\ncalled then queue-\u003estate_change isn\u0027t set and sock-\u003esk-\u003esk_state_change\nisn\u0027t replaced.\n\nAs such we don\u0027t need to restore sock-\u003esk-\u003esk_state_change if\nqueue-\u003estate_change is NULL.\n\nThis avoids NULL pointer dereferences such as this:\n\n[  286.462026][    C0] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[  286.462814][    C0] #PF: supervisor instruction fetch in kernel mode\n[  286.463796][    C0] #PF: error_code(0x0010) - not-present page\n[  286.464392][    C0] PGD 8000000140620067 P4D 8000000140620067 PUD 114201067 PMD 0\n[  286.465086][    C0] Oops: Oops: 0010 [#1] SMP KASAN PTI\n[  286.465559][    C0] CPU: 0 UID: 0 PID: 1628 Comm: nvme Not tainted 6.15.0-rc2+ #11 PREEMPT(voluntary)\n[  286.466393][    C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014\n[  286.467147][    C0] RIP: 0010:0x0\n[  286.467420][    C0] Code: Unable to access opcode bytes at 0xffffffffffffffd6.\n[  286.467977][    C0] RSP: 0018:ffff8883ae008580 EFLAGS: 00010246\n[  286.468425][    C0] RAX: 0000000000000000 RBX: ffff88813fd34100 RCX: ffffffffa386cc43\n[  286.469019][    C0] RDX: 1ffff11027fa68b6 RSI: 0000000000000008 RDI: ffff88813fd34100\n[  286.469545][    C0] RBP: ffff88813fd34160 R08: 0000000000000000 R09: ffffed1027fa682c\n[  286.470072][    C0] R10: ffff88813fd34167 R11: 0000000000000000 R12: ffff88813fd344c3\n[  286.470585][    C0] R13: ffff88813fd34112 R14: ffff88813fd34aec R15: ffff888132cdd268\n[  286.471070][    C0] FS:  00007fe3c04c7d80(0000) GS:ffff88840743f000(0000) knlGS:0000000000000000\n[  286.471644][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  286.472543][    C0] CR2: ffffffffffffffd6 CR3: 000000012daca000 CR4: 00000000000006f0\n[  286.473500][    C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  286.474467][    C0] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7: 0000000000000400\n[  286.475453][    C0] Call Trace:\n[  286.476102][    C0]  \u003cIRQ\u003e\n[  286.476719][    C0]  tcp_fin+0x2bb/0x440\n[  286.477429][    C0]  tcp_data_queue+0x190f/0x4e60\n[  286.478174][    C0]  ? __build_skb_around+0x234/0x330\n[  286.478940][    C0]  ? rcu_is_watching+0x11/0xb0\n[  286.479659][    C0]  ? __pfx_tcp_data_queue+0x10/0x10\n[  286.480431][    C0]  ? tcp_try_undo_loss+0x640/0x6c0\n[  286.481196][    C0]  ? seqcount_lockdep_reader_access.constprop.0+0x82/0x90\n[  286.482046][    C0]  ? kvm_clock_get_cycles+0x14/0x30\n[  286.482769][    C0]  ? ktime_get+0x66/0x150\n[  286.483433][    C0]  ? rcu_is_watching+0x11/0xb0\n[  286.484146][    C0]  tcp_rcv_established+0x6e4/0x2050\n[  286.484857][    C0]  ? rcu_is_watching+0x11/0xb0\n[  286.485523][    C0]  ? ipv4_dst_check+0x160/0x2b0\n[  286.486203][    C0]  ? __pfx_tcp_rcv_established+0x10/0x10\n[  286.486917][    C0]  ? lock_release+0x217/0x2c0\n[  286.487595][    C0]  tcp_v4_do_rcv+0x4d6/0x9b0\n[  286.488279][    C0]  tcp_v4_rcv+0x2af8/0x3e30\n[  286.488904][    C0]  ? raw_local_deliver+0x51b/0xad0\n[  286.489551][    C0]  ? rcu_is_watching+0x11/0xb0\n[  286.490198][    C0]  ? __pfx_tcp_v4_rcv+0x10/0x10\n[  286.490813][    C0]  ? __pfx_raw_local_deliver+0x10/0x10\n[  286.491487][    C0]  ? __pfx_nf_confirm+0x10/0x10 [nf_conntrack]\n[  286.492275][    C0]  ? rcu_is_watching+0x11/0xb0\n[  286.492900][    C0]  ip_protocol_deliver_rcu+0x8f/0x370\n[  286.493579][    C0]  ip_local_deliver_finish+0x297/0x420\n[  286.494268][    C0]  ip_local_deliver+0x168/0x430\n[  286.494867][    C0]  ? __pfx_ip_local_deliver+0x10/0x10\n[  286.495498][    C0]  ? __pfx_ip_local_deliver_finish+0x10/0x10\n[  286.496204][    C0]  ? ip_rcv_finish_core+0x19a/0x1f20\n[  286.496806][    C0]  ? lock_release+0x217/0x2c0\n[  286.497414][    C0]  ip_rcv+0x455/0x6e0\n[  286.497945][    C0]  ? __pfx_ip_rcv+0x10/0x10\n[ \n---truncated---"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvmet-tcp: no restaurar el valor nulo de sk_state_change. La funci\u00f3n queue-\u0026gt;state_change se configura como parte de nvmet_tcp_set_queue_sock(), pero si la conexi\u00f3n TCP no se establece al llamar a nvmet_tcp_set_queue_sock(), la funci\u00f3n queue-\u0026gt;state_change no se configura y la funci\u00f3n sock-\u0026gt;sk-\u0026gt;sk_state_change no se reemplaza. Por lo tanto, no es necesario restaurar sock-\u0026gt;sk-\u0026gt;sk_state_change si la funci\u00f3n queue-\u0026gt;state_change es nula. Esto evita desreferencias de puntero NULL como esta: [ 286.462026][ C0] ERROR: desreferencia de puntero NULL del n\u00facleo, direcci\u00f3n: 0000000000000000 [ 286.462814][ C0] #PF: obtenci\u00f3n de instrucci\u00f3n de supervisor en modo n\u00facleo [ 286.463796][ C0] #PF: error_code(0x0010) - p\u00e1gina no presente [ 286.464392][ C0] PGD 8000000140620067 P4D 8000000140620067 PUD 114201067 PMD 0 [ 286.465086][ C0] Oops: Oops: 0010 [#1] SMP KASAN PTI [ 286.465559][ C0] CPU: 0 UID: 0 PID: 1628 Comm: nvme No contaminado 6.15.0-rc2+ #11 PREEMPT(voluntario) [ 286.466393][ C0] Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 01/04/2014 [ 286.467147][ C0] RIP: 0010:0x0 [ 286.467420][ C0] C\u00f3digo: No se puede acceder a los bytes del c\u00f3digo de operaci\u00f3n en 0xffffffffffffffd6. [ 286.467977][ C0] RSP: 0018:ffff8883ae008580 EFLAGS: 00010246 [ 286.468425][ C0] RAX: 000000000000000 RBX: ffff88813fd34100 RCX: ffffffffa386cc43 [ 286.469019][ C0] RDX: 1ffff11027fa68b6 RSI: 000000000000008 RDI: ffff88813fd34100 [ 286.469545][ C0] RBP: ffff88813fd34160 R08: 0000000000000000 R09: ffffed1027fa682c [ 286.470072][ C0] R10: ffff88813fd34167 R11: 0000000000000000 R12: ffff88813fd344c3 [ 286.470585][ C0] R13: ffff88813fd34112 R14: ffff88813fd34aec R15: ffff888132cdd268 [ 286.471070][ C0] FS: 00007fe3c04c7d80(0000) GS:ffff88840743f000(0000) knlGS:0000000000000000 [ 286.471644][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.472543][ C0] CR2: ffffffffffffffd6 CR3: 000000012daca000 CR4: 00000000000006f0 [ 286.473500][ C0] DR0: 0000000000000000 DR1: 00000000000000000 DR2: 0000000000000000 [ 286.474467][C0] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7: 0000000000000400 [ 286.475453][ C0] Rastreo de llamadas: [ 286.476102][ C0]  [ 286.476719][ C0] tcp_fin+0x2bb/0x440 [ 286.477429][ C0] tcp_data_queue+0x190f/0x4e60 [ 286.478174][ C0] ? __build_skb_around+0x234/0x330 [ 286.478940][ C0] ? rcu_is_watching+0x11/0xb0 [ 286.479659][ C0] ? __pfx_tcp_data_queue+0x10/0x10 [ 286.480431][ C0] ? tcp_try_undo_loss+0x640/0x6c0 [ 286.481196][ C0] ? seqcount_lockdep_reader_access.constprop.0+0x82/0x90 [ 286.482046][ C0] ? kvm_clock_get_cycles+0x14/0x30 [ 286.482769][ C0] ? ktime_get+0x66/0x150 [ 286.483433][ C0] ? rcu_is_watching+0x11/0xb0 [ 286.484146][ C0] tcp_rcv_established+0x6e4/0x2050 [ 286.484857][ C0] ? rcu_is_watching+0x11/0xb0 [ 286.485523][ C0] ? ipv4_dst_check+0x160/0x2b0 [ 286.486203][ C0] ? __pfx_tcp_rcv_established+0x10/0x10 [ 286.486917][ C0] ? lock_release+0x217/0x2c0 [ 286.487595][ C0] tcp_v4_do_rcv+0x4d6/0x9b0 [ 286.488279][ C0] tcp_v4_rcv+0x2af8/0x3e30 [ 286.488904][ C0] ? raw_local_deliver+0x51b/0xad0 [ 286.489551][ C0] ? rcu_is_watching+0x11/0xb0 [ 286.490198][ C0] ? __pfx_tcp_v4_rcv+0x10/0x10 [ 286.490813][ C0] ? __pfx_raw_local_deliver+0x10/0x10 [ 286.491487][ C0] ? __pfx_nf_confirm+0x10/0x10 [nf_conntrack] [ 286.492275][ C0] ? rcu_is_watching+0x11/0xb0 [ 286.492900][ C0] ip_protocol_deliver_rcu+0x8f/0x370 [ 286.493579][ C0] ip_local_deliver_finish+0x297/0x420 [ 286.494268][ C0] ip_local_deliver+0x168/0x430 [ 286.494867][ C0] ? __pfx_ip_local_deliver+0x10/0x10 [ 286.495498][ C0] ? __pfx_ip_local_deliver_finish+0x10/0x10 [ 286.496204][ C0] ? ip_rcv_finish_core+0x19a/0x1f20 [ 286.496806][ C0] ? lock_release+0x217/0x2c0 [ 286.497414][ C0] ip_rcv+0x455/0x6e0 [ 286.497945][ C0] ? __pfx_ip_rcv+0x10/0x10 ---truncado---"
          }
        ],
        "id": "CVE-2025-38035",
        "lastModified": "2026-07-30T06:22:46.173",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-06-18T10:15:35.750",
        "references": [
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          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/c240375587ddcc80e1022f52ee32b946bbc3a639"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ec462449f4cf616b0aa2ed119f5f44b5fdfcefab"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/fc01b547c3f8bfa6e1d23cd5a2c63c736e8c3e4e"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-30T09:22:40+00:00",
      "cve": "CVE-2025-38035",
      "id": "CVE-2025-38035",
      "initial_release_date": "2025-06-18T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nvmet-tcp: don\u0027t restore null sk_state_change",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38035.json",
      "version": "3"
    }
  }
}



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Tags
Taxonomy of the tags.





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.