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CVE-2026-45970 (GCVE-0-2026-45970)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:18 – Updated: 2026-08-05 12:28
VLAI
Title
bonding: alb: fix UAF in rlb_arp_recv during bond up/down
Summary
In the Linux kernel, the following vulnerability has been resolved: bonding: alb: fix UAF in rlb_arp_recv during bond up/down The ALB RX path may access rx_hashtbl concurrently with bond teardown. During rapid bond up/down cycles, rlb_deinitialize() frees rx_hashtbl while RX handlers are still running, leading to a null pointer dereference detected by KASAN. However, the root cause is that rlb_arp_recv() can still be accessed after setting recv_probe to NULL, which is actually a use-after-free (UAF) issue. That is the reason for using the referenced commit in the Fixes tag. [ 214.174138] Oops: general protection fault, probably for non-canonical address 0xdffffc000000001d: 0000 [#1] SMP KASAN PTI [ 214.186478] KASAN: null-ptr-deref in range [0x00000000000000e8-0x00000000000000ef] [ 214.194933] CPU: 30 UID: 0 PID: 2375 Comm: ping Kdump: loaded Not tainted 6.19.0-rc8+ #2 PREEMPT(voluntary) [ 214.205907] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.14.0 01/14/2022 [ 214.214357] RIP: 0010:rlb_arp_recv+0x505/0xab0 [bonding] [ 214.220320] Code: 0f 85 2b 05 00 00 48 b8 00 00 00 00 00 fc ff df 40 0f b6 ed 48 c1 e5 06 49 03 ad 78 01 00 00 48 8d 7d 28 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 12 05 00 00 80 7d 28 00 0f 84 8c 00 [ 214.241280] RSP: 0018:ffffc900073d8870 EFLAGS: 00010206 [ 214.247116] RAX: dffffc0000000000 RBX: ffff888168556822 RCX: ffff88816855681e [ 214.255082] RDX: 000000000000001d RSI: dffffc0000000000 RDI: 00000000000000e8 [ 214.263048] RBP: 00000000000000c0 R08: 0000000000000002 R09: ffffed11192021c8 [ 214.271013] R10: ffff8888c9010e43 R11: 0000000000000001 R12: 1ffff92000e7b119 [ 214.278978] R13: ffff8888c9010e00 R14: ffff888168556822 R15: ffff888168556810 [ 214.286943] FS: 00007f85d2d9cb80(0000) GS:ffff88886ccb3000(0000) knlGS:0000000000000000 [ 214.295966] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 214.302380] CR2: 00007f0d047b5e34 CR3: 00000008a1c2e002 CR4: 00000000001726f0 [ 214.310347] Call Trace: [ 214.313070] <IRQ> [ 214.315318] ? __pfx_rlb_arp_recv+0x10/0x10 [bonding] [ 214.320975] bond_handle_frame+0x166/0xb60 [bonding] [ 214.326537] ? __pfx_bond_handle_frame+0x10/0x10 [bonding] [ 214.332680] __netif_receive_skb_core.constprop.0+0x576/0x2710 [ 214.339199] ? __pfx_arp_process+0x10/0x10 [ 214.343775] ? sched_balance_find_src_group+0x98/0x630 [ 214.349513] ? __pfx___netif_receive_skb_core.constprop.0+0x10/0x10 [ 214.356513] ? arp_rcv+0x307/0x690 [ 214.360311] ? __pfx_arp_rcv+0x10/0x10 [ 214.364499] ? __lock_acquire+0x58c/0xbd0 [ 214.368975] __netif_receive_skb_one_core+0xae/0x1b0 [ 214.374518] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 214.380743] ? lock_acquire+0x10b/0x140 [ 214.385026] process_backlog+0x3f1/0x13a0 [ 214.389502] ? process_backlog+0x3aa/0x13a0 [ 214.394174] __napi_poll.constprop.0+0x9f/0x370 [ 214.399233] net_rx_action+0x8c1/0xe60 [ 214.403423] ? __pfx_net_rx_action+0x10/0x10 [ 214.408193] ? lock_acquire.part.0+0xbd/0x260 [ 214.413058] ? sched_clock_cpu+0x6c/0x540 [ 214.417540] ? mark_held_locks+0x40/0x70 [ 214.421920] handle_softirqs+0x1fd/0x860 [ 214.426302] ? __pfx_handle_softirqs+0x10/0x10 [ 214.431264] ? __neigh_event_send+0x2d6/0xf50 [ 214.436131] do_softirq+0xb1/0xf0 [ 214.439830] </IRQ> The issue is reproducible by repeatedly running ip link set bond0 up/down while receiving ARP messages, where rlb_arp_recv() can race with rlb_deinitialize() and dereference a freed rx_hashtbl entry. Fix this by setting recv_probe to NULL and then calling synchronize_net() to wait for any concurrent RX processing to finish. This ensures that no RX handler can access rx_hashtbl after it is freed in bond_alb_deinitialize().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < fd54ddc929be1d6c3b3b7b35d6d4642a5d9e803c (git)
Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < de7c097800f07f3c108185c7a38b53a530ba30ff (git)
Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < db5435b5342e3aaa4521d0f3ccfe94316b253ca1 (git)
Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < f94a0de7b9f32745a14a1621c63087a092823587 (git)
Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < c65cdf46ce340c9c00fbbaf84599d2daff43626e (git)
Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < fef13c403be3fb685cb06419e6b3623106aab5ba (git)
Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < d31065526f160ee0244a719230aa069daca2bf4d (git)
Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < e6834a4c474697df23ab9948fd3577b26bf48656 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.0
Unaffected: 0 , < 3.0 (semver)
Unaffected: 5.10.252 , ≤ 5.10.* (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.14 , ≤ 6.18.* (semver)
Unaffected: 6.19.4 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
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              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: alb: fix UAF in rlb_arp_recv during bond up/down\n\nThe ALB RX path may access rx_hashtbl concurrently with bond\nteardown. During rapid bond up/down cycles, rlb_deinitialize()\nfrees rx_hashtbl while RX handlers are still running, leading\nto a null pointer dereference detected by KASAN.\n\nHowever, the root cause is that rlb_arp_recv() can still be accessed\nafter setting recv_probe to NULL, which is actually a use-after-free\n(UAF) issue. That is the reason for using the referenced commit in the\nFixes tag.\n\n[  214.174138] Oops: general protection fault, probably for non-canonical address 0xdffffc000000001d: 0000 [#1] SMP KASAN PTI\n[  214.186478] KASAN: null-ptr-deref in range [0x00000000000000e8-0x00000000000000ef]\n[  214.194933] CPU: 30 UID: 0 PID: 2375 Comm: ping Kdump: loaded Not tainted 6.19.0-rc8+ #2 PREEMPT(voluntary)\n[  214.205907] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.14.0 01/14/2022\n[  214.214357] RIP: 0010:rlb_arp_recv+0x505/0xab0 [bonding]\n[  214.220320] Code: 0f 85 2b 05 00 00 48 b8 00 00 00 00 00 fc ff df 40 0f b6 ed 48 c1 e5 06 49 03 ad 78 01 00 00 48 8d 7d 28 48 89 fa 48 c1 ea 03 \u003c0f\u003e b6\n 04 02 84 c0 74 06 0f 8e 12 05 00 00 80 7d 28 00 0f 84 8c 00\n[  214.241280] RSP: 0018:ffffc900073d8870 EFLAGS: 00010206\n[  214.247116] RAX: dffffc0000000000 RBX: ffff888168556822 RCX: ffff88816855681e\n[  214.255082] RDX: 000000000000001d RSI: dffffc0000000000 RDI: 00000000000000e8\n[  214.263048] RBP: 00000000000000c0 R08: 0000000000000002 R09: ffffed11192021c8\n[  214.271013] R10: ffff8888c9010e43 R11: 0000000000000001 R12: 1ffff92000e7b119\n[  214.278978] R13: ffff8888c9010e00 R14: ffff888168556822 R15: ffff888168556810\n[  214.286943] FS:  00007f85d2d9cb80(0000) GS:ffff88886ccb3000(0000) knlGS:0000000000000000\n[  214.295966] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  214.302380] CR2: 00007f0d047b5e34 CR3: 00000008a1c2e002 CR4: 00000000001726f0\n[  214.310347] Call Trace:\n[  214.313070]  \u003cIRQ\u003e\n[  214.315318]  ? __pfx_rlb_arp_recv+0x10/0x10 [bonding]\n[  214.320975]  bond_handle_frame+0x166/0xb60 [bonding]\n[  214.326537]  ? __pfx_bond_handle_frame+0x10/0x10 [bonding]\n[  214.332680]  __netif_receive_skb_core.constprop.0+0x576/0x2710\n[  214.339199]  ? __pfx_arp_process+0x10/0x10\n[  214.343775]  ? sched_balance_find_src_group+0x98/0x630\n[  214.349513]  ? __pfx___netif_receive_skb_core.constprop.0+0x10/0x10\n[  214.356513]  ? arp_rcv+0x307/0x690\n[  214.360311]  ? __pfx_arp_rcv+0x10/0x10\n[  214.364499]  ? __lock_acquire+0x58c/0xbd0\n[  214.368975]  __netif_receive_skb_one_core+0xae/0x1b0\n[  214.374518]  ? __pfx___netif_receive_skb_one_core+0x10/0x10\n[  214.380743]  ? lock_acquire+0x10b/0x140\n[  214.385026]  process_backlog+0x3f1/0x13a0\n[  214.389502]  ? process_backlog+0x3aa/0x13a0\n[  214.394174]  __napi_poll.constprop.0+0x9f/0x370\n[  214.399233]  net_rx_action+0x8c1/0xe60\n[  214.403423]  ? __pfx_net_rx_action+0x10/0x10\n[  214.408193]  ? lock_acquire.part.0+0xbd/0x260\n[  214.413058]  ? sched_clock_cpu+0x6c/0x540\n[  214.417540]  ? mark_held_locks+0x40/0x70\n[  214.421920]  handle_softirqs+0x1fd/0x860\n[  214.426302]  ? __pfx_handle_softirqs+0x10/0x10\n[  214.431264]  ? __neigh_event_send+0x2d6/0xf50\n[  214.436131]  do_softirq+0xb1/0xf0\n[  214.439830]  \u003c/IRQ\u003e\n\nThe issue is reproducible by repeatedly running\nip link set bond0 up/down while receiving ARP messages, where\nrlb_arp_recv() can race with rlb_deinitialize() and dereference\na freed rx_hashtbl entry.\n\nFix this by setting recv_probe to NULL and then calling\nsynchronize_net() to wait for any concurrent RX processing to finish.\nThis ensures that no RX handler can access rx_hashtbl after it is freed\nin bond_alb_deinitialize()."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable code is reached via a received ARP frame on a bond slave; an unprivileged local user can reproduce the entire scenario inside a user namespace (`unshare -Urn`) by creating a balance-alb bond over veths, injecting ARP locally, and cycling the bond up/down, so no network/adjacent position is required.\nAC:L - In the user-namespace scenario the attacker controls both sides of the race \u2014 the ARP injection (RX side) and the bond up/down cycling (free side) \u2014 and the upstream report confirms it is readily reproducible by repeated cycling, so the race can be won reliably.\nPR:L - Triggering the free requires CAP_NET_ADMIN on the bond, but this is obtainable by any unprivileged user via a user+network namespace (which also grants CAP_NET_RAW for ARP injection), so only basic local user privileges are needed.\nUI:N - No victim interaction is required; the attacker drives both the packet receipt and the bond teardown themselves.\nS:U - The vulnerability and its impact are confined to the kernel\u0027s own security authority; there is no crossing of a VM/IOMMU/sandbox boundary.\nC:H - The UAF reads the contents of the freed `rx_hashtbl` object (after potential reallocation), which can be leveraged to disclose attacker-influenced or adjacent kernel heap data.\nI:H - The UAF writes into the freed/reallocated object, including copying 6 attacker-controlled bytes (the ARP source MAC) and link-pointer updates, providing a write primitive into reclaimed heap memory exploitable for control-flow corruption.\nA:H - The bug causes a KASAN-detected general protection fault / kernel oops (as shown in the report), reliably crashing the kernel."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:28:58.557Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fd54ddc929be1d6c3b3b7b35d6d4642a5d9e803c"
        },
        {
          "url": "https://git.kernel.org/stable/c/de7c097800f07f3c108185c7a38b53a530ba30ff"
        },
        {
          "url": "https://git.kernel.org/stable/c/db5435b5342e3aaa4521d0f3ccfe94316b253ca1"
        },
        {
          "url": "https://git.kernel.org/stable/c/f94a0de7b9f32745a14a1621c63087a092823587"
        },
        {
          "url": "https://git.kernel.org/stable/c/c65cdf46ce340c9c00fbbaf84599d2daff43626e"
        },
        {
          "url": "https://git.kernel.org/stable/c/fef13c403be3fb685cb06419e6b3623106aab5ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/d31065526f160ee0244a719230aa069daca2bf4d"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6834a4c474697df23ab9948fd3577b26bf48656"
        }
      ],
      "title": "bonding: alb: fix UAF in rlb_arp_recv during bond up/down",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45970",
    "datePublished": "2026-05-27T12:18:29.878Z",
    "dateReserved": "2026-05-13T15:03:33.089Z",
    "dateUpdated": "2026-08-05T12:28:58.557Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-45970",
      "date": "2026-09-07",
      "epss": "0.00126",
      "percentile": "0.02541"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-45970\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-27T14:17:13.920\",\"lastModified\":\"2026-06-17T10:52:49.230\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbonding: alb: fix UAF in rlb_arp_recv during bond up/down\\n\\nThe ALB RX path may access rx_hashtbl concurrently with bond\\nteardown. During rapid bond up/down cycles, rlb_deinitialize()\\nfrees rx_hashtbl while RX handlers are still running, leading\\nto a null pointer dereference detected by KASAN.\\n\\nHowever, the root cause is that rlb_arp_recv() can still be accessed\\nafter setting recv_probe to NULL, which is actually a use-after-free\\n(UAF) issue. That is the reason for using the referenced commit in the\\nFixes tag.\\n\\n[  214.174138] Oops: general protection fault, probably for non-canonical address 0xdffffc000000001d: 0000 [#1] SMP KASAN PTI\\n[  214.186478] KASAN: null-ptr-deref in range [0x00000000000000e8-0x00000000000000ef]\\n[  214.194933] CPU: 30 UID: 0 PID: 2375 Comm: ping Kdump: loaded Not tainted 6.19.0-rc8+ #2 PREEMPT(voluntary)\\n[  214.205907] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.14.0 01/14/2022\\n[  214.214357] RIP: 0010:rlb_arp_recv+0x505/0xab0 [bonding]\\n[  214.220320] Code: 0f 85 2b 05 00 00 48 b8 00 00 00 00 00 fc ff df 40 0f b6 ed 48 c1 e5 06 49 03 ad 78 01 00 00 48 8d 7d 28 48 89 fa 48 c1 ea 03 \u003c0f\u003e b6\\n 04 02 84 c0 74 06 0f 8e 12 05 00 00 80 7d 28 00 0f 84 8c 00\\n[  214.241280] RSP: 0018:ffffc900073d8870 EFLAGS: 00010206\\n[  214.247116] RAX: dffffc0000000000 RBX: ffff888168556822 RCX: ffff88816855681e\\n[  214.255082] RDX: 000000000000001d RSI: dffffc0000000000 RDI: 00000000000000e8\\n[  214.263048] RBP: 00000000000000c0 R08: 0000000000000002 R09: ffffed11192021c8\\n[  214.271013] R10: ffff8888c9010e43 R11: 0000000000000001 R12: 1ffff92000e7b119\\n[  214.278978] R13: ffff8888c9010e00 R14: ffff888168556822 R15: ffff888168556810\\n[  214.286943] FS:  00007f85d2d9cb80(0000) GS:ffff88886ccb3000(0000) knlGS:0000000000000000\\n[  214.295966] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[  214.302380] CR2: 00007f0d047b5e34 CR3: 00000008a1c2e002 CR4: 00000000001726f0\\n[  214.310347] Call Trace:\\n[  214.313070]  \u003cIRQ\u003e\\n[  214.315318]  ? __pfx_rlb_arp_recv+0x10/0x10 [bonding]\\n[  214.320975]  bond_handle_frame+0x166/0xb60 [bonding]\\n[  214.326537]  ? __pfx_bond_handle_frame+0x10/0x10 [bonding]\\n[  214.332680]  __netif_receive_skb_core.constprop.0+0x576/0x2710\\n[  214.339199]  ? __pfx_arp_process+0x10/0x10\\n[  214.343775]  ? sched_balance_find_src_group+0x98/0x630\\n[  214.349513]  ? __pfx___netif_receive_skb_core.constprop.0+0x10/0x10\\n[  214.356513]  ? arp_rcv+0x307/0x690\\n[  214.360311]  ? __pfx_arp_rcv+0x10/0x10\\n[  214.364499]  ? __lock_acquire+0x58c/0xbd0\\n[  214.368975]  __netif_receive_skb_one_core+0xae/0x1b0\\n[  214.374518]  ? __pfx___netif_receive_skb_one_core+0x10/0x10\\n[  214.380743]  ? lock_acquire+0x10b/0x140\\n[  214.385026]  process_backlog+0x3f1/0x13a0\\n[  214.389502]  ? process_backlog+0x3aa/0x13a0\\n[  214.394174]  __napi_poll.constprop.0+0x9f/0x370\\n[  214.399233]  net_rx_action+0x8c1/0xe60\\n[  214.403423]  ? __pfx_net_rx_action+0x10/0x10\\n[  214.408193]  ? lock_acquire.part.0+0xbd/0x260\\n[  214.413058]  ? sched_clock_cpu+0x6c/0x540\\n[  214.417540]  ? mark_held_locks+0x40/0x70\\n[  214.421920]  handle_softirqs+0x1fd/0x860\\n[  214.426302]  ? __pfx_handle_softirqs+0x10/0x10\\n[  214.431264]  ? __neigh_event_send+0x2d6/0xf50\\n[  214.436131]  do_softirq+0xb1/0xf0\\n[  214.439830]  \u003c/IRQ\u003e\\n\\nThe issue is reproducible by repeatedly running\\nip link set bond0 up/down while receiving ARP messages, where\\nrlb_arp_recv() can race with rlb_deinitialize() and dereference\\na freed rx_hashtbl entry.\\n\\nFix this by setting recv_probe to NULL and then calling\\nsynchronize_net() to wait for any concurrent RX processing to finish.\\nThis ensures that no RX handler can access rx_hashtbl after it is freed\\nin bond_alb_deinitialize().\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/bonding/bond_main.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3aba891dde3842d89ad022237b99c1ed308040b0\",\"lessThan\":\"fd54ddc929be1d6c3b3b7b35d6d4642a5d9e803c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3aba891dde3842d89ad022237b99c1ed308040b0\",\"lessThan\":\"de7c097800f07f3c108185c7a38b53a530ba30ff\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3aba891dde3842d89ad022237b99c1ed308040b0\",\"lessThan\":\"db5435b5342e3aaa4521d0f3ccfe94316b253ca1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3aba891dde3842d89ad022237b99c1ed308040b0\",\"lessThan\":\"f94a0de7b9f32745a14a1621c63087a092823587\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3aba891dde3842d89ad022237b99c1ed308040b0\",\"lessThan\":\"c65cdf46ce340c9c00fbbaf84599d2daff43626e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3aba891dde3842d89ad022237b99c1ed308040b0\",\"lessThan\":\"fef13c403be3fb685cb06419e6b3623106aab5ba\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3aba891dde3842d89ad022237b99c1ed308040b0\",\"lessThan\":\"d31065526f160ee0244a719230aa069daca2bf4d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3aba891dde3842d89ad022237b99c1ed308040b0\",\"lessThan\":\"e6834a4c474697df23ab9948fd3577b26bf48656\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/bonding/bond_main.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.0\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.0\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.252\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.202\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.165\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.128\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.75\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.14\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19.4\",\"lessThanOrEqual\":\"6.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0\",\"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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.0\",\"versionEndExcluding\":\"5.10.252\",\"matchCriteriaId\":\"1EB67BC6-1E44-436E-832B-BBB8A9ADB1A3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.202\",\"matchCriteriaId\":\"4002FC2B-1456-4666-B240-0EBF590C4671\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.165\",\"matchCriteriaId\":\"797C7F46-D0BE-4FB8-A502-C5EF8E6B6654\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.128\",\"matchCriteriaId\":\"851E9353-6C09-4CC9-877E-E09DB164A3C2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.75\",\"matchCriteriaId\":\"BCE16369-98ED-41CF-8995-DFDC10B288D2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.14\",\"matchCriteriaId\":\"BF463CB7-1F58-4607-B847-77ED23E4B9B7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.19\",\"versionEndExcluding\":\"6.19.4\",\"matchCriteriaId\":\"672A3E79-EC03-479D-8503-361DFBDC8092\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/c65cdf46ce340c9c00fbbaf84599d2daff43626e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d31065526f160ee0244a719230aa069daca2bf4d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/db5435b5342e3aaa4521d0f3ccfe94316b253ca1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/de7c097800f07f3c108185c7a38b53a530ba30ff\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e6834a4c474697df23ab9948fd3577b26bf48656\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f94a0de7b9f32745a14a1621c63087a092823587\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fd54ddc929be1d6c3b3b7b35d6d4642a5d9e803c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fef13c403be3fb685cb06419e6b3623106aab5ba\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-04T08:02:49+00:00",
      "cve": "CVE-2026-45970",
      "id": "CVE-2026-45970",
      "initial_release_date": "2026-05-27T00:00:00+00:00",
      "product_status:fixed": "762",
      "product_status:known_affected": "64",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bonding: alb: fix UAF in rlb_arp_recv during bond up/down",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45970.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-31T13:38:40Z",
      "cve": "CVE-2026-45970",
      "id": "CVE-2026-45970",
      "initial_release_date": "2026-05-28T03:55:12Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "517",
      "product_status:recommended": "734",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-45970",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-45970.json",
      "version": "34"
    }
  }
}



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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.