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    ],
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        {
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          "programFiles": [
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            "drivers/net/bonding/bond_options.c",
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              "negate": false,
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: check xdp prog when set bond mode\n\nFollowing operations can trigger a warning[1]:\n\n    ip netns add ns1\n    ip netns exec ns1 ip link add bond0 type bond mode balance-rr\n    ip netns exec ns1 ip link set dev bond0 xdp obj af_xdp_kern.o sec xdp\n    ip netns exec ns1 ip link set bond0 type bond mode broadcast\n    ip netns del ns1\n\nWhen delete the namespace, dev_xdp_uninstall() is called to remove xdp\nprogram on bond dev, and bond_xdp_set() will check the bond mode. If bond\nmode is changed after attaching xdp program, the warning may occur.\n\nSome bond modes (broadcast, etc.) do not support native xdp. Set bond mode\nwith xdp program attached is not good. Add check for xdp program when set\nbond mode.\n\n    [1]\n    ------------[ cut here ]------------\n    WARNING: CPU: 0 PID: 11 at net/core/dev.c:9912 unregister_netdevice_many_notify+0x8d9/0x930\n    Modules linked in:\n    CPU: 0 UID: 0 PID: 11 Comm: kworker/u4:0 Not tainted 6.14.0-rc4 #107\n    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014\n    Workqueue: netns cleanup_net\n    RIP: 0010:unregister_netdevice_many_notify+0x8d9/0x930\n    Code: 00 00 48 c7 c6 6f e3 a2 82 48 c7 c7 d0 b3 96 82 e8 9c 10 3e ...\n    RSP: 0018:ffffc90000063d80 EFLAGS: 00000282\n    RAX: 00000000ffffffa1 RBX: ffff888004959000 RCX: 00000000ffffdfff\n    RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffc90000063b48\n    RBP: ffffc90000063e28 R08: ffffffff82d39b28 R09: 0000000000009ffb\n    R10: 0000000000000175 R11: ffffffff82d09b40 R12: ffff8880049598e8\n    R13: 0000000000000001 R14: dead000000000100 R15: ffffc90000045000\n    FS:  0000000000000000(0000) GS:ffff888007a00000(0000) knlGS:0000000000000000\n    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n    CR2: 000000000d406b60 CR3: 000000000483e000 CR4: 00000000000006f0\n    Call Trace:\n     \u003cTASK\u003e\n     ? __warn+0x83/0x130\n     ? unregister_netdevice_many_notify+0x8d9/0x930\n     ? report_bug+0x18e/0x1a0\n     ? handle_bug+0x54/0x90\n     ? exc_invalid_op+0x18/0x70\n     ? asm_exc_invalid_op+0x1a/0x20\n     ? unregister_netdevice_many_notify+0x8d9/0x930\n     ? bond_net_exit_batch_rtnl+0x5c/0x90\n     cleanup_net+0x237/0x3d0\n     process_one_work+0x163/0x390\n     worker_thread+0x293/0x3b0\n     ? __pfx_worker_thread+0x10/0x10\n     kthread+0xec/0x1e0\n     ? __pfx_kthread+0x10/0x10\n     ? __pfx_kthread+0x10/0x10\n     ret_from_fork+0x2f/0x50\n     ? __pfx_kthread+0x10/0x10\n     ret_from_fork_asm+0x1a/0x30\n     \u003c/TASK\u003e\n    ---[ end trace 0000000000000000 ]---"
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              "value": "AV:L - The entire attack is driven through local syscalls \u2014 `socket()`+`setsockopt(TCP_ULP,\"espintcp\")` to create the encap socket, NETLINK_XFRM to add/flush the SA and policy, and local traffic to trigger `esp_output_tail_tcp()`. No remote peer input is needed to populate or tear down the cached socket reference.\nAC:L - The reference leak itself is fully deterministic \u2014 create the SA, send one packet, let the namespace go away \u2014 with no race or memory-layout dependency, and `CONFIG_INET_ESPINTCP`/`CONFIG_INET6_ESPINTCP` are enabled in mainstream distro kernels. For the dangling-`encap_sk` window the attacker drives both sides (a traffic generator feeding `xfrm_trans_queue_net()` and a concurrent `xfrm state flush` loop) and can retry indefinitely.\nPR:L - Adding the xfrm state requires CAP_NET_ADMIN, but `xfrm_user.c` uses `netlink_net_capable()`, which resolves against `sock_net(skb-\u003esk)-\u003euser_ns`, so an ordinary unprivileged user obtains it with `unshare -Urn`; attaching the espintcp ULP requires no privilege at all. No real root in the init namespace is needed.\nUI:N - The attacker performs every step \u2014 socket setup, SA installation, packet transmission, and namespace teardown \u2014 entirely on their own. No victim action or cooperating process is involved.\nS:U - The leaked netns/socket and the dangling socket dereference are all kernel objects under the same security authority as the attacking context; no VM, IOMMU, or hypervisor boundary is crossed.\nC:H - After `__xfrm_state_delete()` drops the socket reference without RCU synchronization and leaves `x-\u003eencap_sk` non-NULL, the deferred `esp_find_tcp_sk()` reads `sk-\u003esk_state` and then operates on that released socket; because TCP sockets come from a SLAB_TYPESAFE_BY_RCU cache the slot can already hold an attacker-groomed socket, and `espintcp_getctx()` then follows a foreign `icsk_ulp_data`, giving a use-after-free read primitive over attacker-influenced kernel memory.\nI:H - The stale `x-\u003eencap_sk` also lets the slow path match `sk == nsk` and queue a second `sock_put()` through `call_rcu(esp_free_tcp_sk)`, a refcount underflow that frees a socket userspace still references by fd \u2014 a classic UAF write/heap-grooming primitive, and `bh_lock_sock()`/`espintcp_push_skb()` write into the freed object directly.\nA:H - Each leaked SA permanently pins an entire `struct net` (with all per-net subsystem allocations, sysctls, procfs entries and per-cpu data) that can never be reclaimed, and an unprivileged user can repeat this in a loop until kernel memory is exhausted or netns ucount limits break container creation; the dangling-socket dereference additionally oopses the kernel."
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Do not include stack ptr register in precision backtracking bookkeeping\n\nYi Lai reported an issue ([1]) where the following warning appears\nin kernel dmesg:\n  [   60.643604] verifier backtracking bug\n  [   60.643635] WARNING: CPU: 10 PID: 2315 at kernel/bpf/verifier.c:4302 __mark_chain_precision+0x3a6c/0x3e10\n  [   60.648428] Modules linked in: bpf_testmod(OE)\n  [   60.650471] CPU: 10 UID: 0 PID: 2315 Comm: test_progs Tainted: G           OE       6.15.0-rc4-gef11287f8289-dirty #327 PREEMPT(full)\n  [   60.654385] Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE\n  [   60.656682] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\n  [   60.660475] RIP: 0010:__mark_chain_precision+0x3a6c/0x3e10\n  [   60.662814] Code: 5a 30 84 89 ea e8 c4 d9 01 00 80 3d 3e 7d d8 04 00 0f 85 60 fa ff ff c6 05 31 7d d8 04\n                       01 48 c7 c7 00 58 30 84 e8 c4 06 a5 ff \u003c0f\u003e 0b e9 46 fa ff ff 48 ...\n  [   60.668720] RSP: 0018:ffff888116cc7298 EFLAGS: 00010246\n  [   60.671075] RAX: 54d70e82dfd31900 RBX: ffff888115b65e20 RCX: 0000000000000000\n  [   60.673659] RDX: 0000000000000001 RSI: 0000000000000004 RDI: 00000000ffffffff\n  [   60.676241] RBP: 0000000000000400 R08: ffff8881f6f23bd3 R09: 1ffff1103ede477a\n  [   60.678787] R10: dffffc0000000000 R11: ffffed103ede477b R12: ffff888115b60ae8\n  [   60.681420] R13: 1ffff11022b6cbc4 R14: 00000000fffffff2 R15: 0000000000000001\n  [   60.684030] FS:  00007fc2aedd80c0(0000) GS:ffff88826fa8a000(0000) knlGS:0000000000000000\n  [   60.686837] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  [   60.689027] CR2: 000056325369e000 CR3: 000000011088b002 CR4: 0000000000370ef0\n  [   60.691623] Call Trace:\n  [   60.692821]  \u003cTASK\u003e\n  [   60.693960]  ? __pfx_verbose+0x10/0x10\n  [   60.695656]  ? __pfx_disasm_kfunc_name+0x10/0x10\n  [   60.697495]  check_cond_jmp_op+0x16f7/0x39b0\n  [   60.699237]  do_check+0x58fa/0xab10\n  ...\n\nFurther analysis shows the warning is at line 4302 as below:\n\n  4294                 /* static subprog call instruction, which\n  4295                  * means that we are exiting current subprog,\n  4296                  * so only r1-r5 could be still requested as\n  4297                  * precise, r0 and r6-r10 or any stack slot in\n  4298                  * the current frame should be zero by now\n  4299                  */\n  4300                 if (bt_reg_mask(bt) \u0026 ~BPF_REGMASK_ARGS) {\n  4301                         verbose(env, \"BUG regs %x\\n\", bt_reg_mask(bt));\n  4302                         WARN_ONCE(1, \"verifier backtracking bug\");\n  4303                         return -EFAULT;\n  4304                 }\n\nWith the below test (also in the next patch):\n  __used __naked static void __bpf_jmp_r10(void)\n  {\n\tasm volatile (\n\t\"r2 = 2314885393468386424 ll;\"\n\t\"goto +0;\"\n\t\"if r2 \u003c= r10 goto +3;\"\n\t\"if r1 \u003e= -1835016 goto +0;\"\n\t\"if r2 \u003c= 8 goto +0;\"\n\t\"if r3 \u003c= 0 goto +0;\"\n\t\"exit;\"\n\t::: __clobber_all);\n  }\n\n  SEC(\"?raw_tp\")\n  __naked void bpf_jmp_r10(void)\n  {\n\tasm volatile (\n\t\"r3 = 0 ll;\"\n\t\"call __bpf_jmp_r10;\"\n\t\"r0 = 0;\"\n\t\"exit;\"\n\t::: __clobber_all);\n  }\n\nThe following is the verifier failure log:\n  0: (18) r3 = 0x0                      ; R3_w=0\n  2: (85) call pc+2\n  caller:\n   R10=fp0\n  callee:\n   frame1: R1=ctx() R3_w=0 R10=fp0\n  5: frame1: R1=ctx() R3_w=0 R10=fp0\n  ; asm volatile (\"                                 \\ @ verifier_precision.c:184\n  5: (18) r2 = 0x20202000256c6c78       ; frame1: R2_w=0x20202000256c6c78\n  7: (05) goto pc+0\n  8: (bd) if r2 \u003c= r10 goto pc+3        ; frame1: R2_w=0x20202000256c6c78 R10=fp0\n  9: (35) if r1 \u003e= 0xffe3fff8 goto pc+0         ; frame1: R1=ctx()\n  10: (b5) if r2 \u003c= 0x8 goto pc+0\n  mark_precise: frame1: last_idx 10 first_idx 0 subseq_idx -1\n  mark_precise: frame1: regs=r2 stack= before 9: (35) if r1 \u003e= 0xffe3fff8 goto pc+0\n  mark_precise: frame1: regs=r2 stack= before 8: (bd) if r2 \u003c= r10 goto pc+3\n  mark_preci\n---truncated---"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()\n\nsyzbot found a potential access to uninit-value in nf_flow_pppoe_proto()\n\nBlamed commit forgot the Ethernet header.\n\nBUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27\n  nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27\n  nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]\n  nf_hook_slow+0xe1/0x3d0 net/netfilter/core.c:623\n  nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline]\n  nf_ingress net/core/dev.c:5742 [inline]\n  __netif_receive_skb_core+0x4aff/0x70c0 net/core/dev.c:5837\n  __netif_receive_skb_one_core net/core/dev.c:5975 [inline]\n  __netif_receive_skb+0xcc/0xac0 net/core/dev.c:6090\n  netif_receive_skb_internal net/core/dev.c:6176 [inline]\n  netif_receive_skb+0x57/0x630 net/core/dev.c:6235\n  tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485\n  tun_get_user+0x4ee0/0x6b40 drivers/net/tun.c:1938\n  tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1984\n  new_sync_write fs/read_write.c:593 [inline]\n  vfs_write+0xb4b/0x1580 fs/read_write.c:686\n  ksys_write fs/read_write.c:738 [inline]\n  __do_sys_write fs/read_write.c:749 [inline]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:59:44.778Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a3aea97d55964e70a1e6426aa4cafdc036e8a2dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/eed8960b289327235185b7c32649c3470a3e969b"
        },
        {
          "url": "https://git.kernel.org/stable/c/9fbc49429a23b02595ba82536c5ea425fdabb221"
        },
        {
          "url": "https://git.kernel.org/stable/c/e0dd2e9729660f3f4fcb16e0aef87342911528ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/cfbf0665969af2c69d10c377d4c3d306e717efb4"
        },
        {
          "url": "https://git.kernel.org/stable/c/18cdb3d982da8976b28d57691eb256ec5688fad2"
        }
      ],
      "title": "netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38441",
    "datePublished": "2025-07-25T15:27:20.276Z",
    "dateReserved": "2025-04-16T04:51:24.016Z",
    "dateUpdated": "2026-11-05T21:02:38.282Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}