{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.8-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  IB/iser: reject a remote invalidation of an unregistered direction  A write command whose data is sent entirely as immediate data is not registered.  iser_reg_mem_fastreg() takes the DMA key path and leaves rdma_reg[ISER_DIR_OUT].desc at NULL, while iser_dma_map_task_data() has already set dir[ISER_DIR_OUT].  iser_check_remote_inv() looks at dir[] alone and hands the descriptor to iser_inv_desc(), which reads desc-\u003esig_protected.  A target that answers such a command with IB_WR_SEND_WITH_INV faults the initiator. Leaving those commands unregistered is deliberate.  The same function already terminates the connection when a target sends a remote invalidation the initiator did not ask for.  A target that invalidates a direction that was never registered is in the same class, so give it the same answer.    Oops: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] SMP KASAN NOPTI   KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]   CPU: 0 UID: 0 PID: 40 Comm: kworker/u8:2 Not tainted 7.2.0-rc5-ISERHOST-gf5098b6bae76-dirty #3 PREEMPT(lazy)   Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014   Workqueue: rxe_wq do_work   RIP: 0010:iser_task_rsp+0x6d6/0xec0   Code: 48 c1 ea 03 80 3c 02 00 0f 85 ba 06 00 00 48 8b 9b 78 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 20 48 89 fa 48 c1 ea 03 \u003c0f\u003e b6 04 02 84 c0 74 06 0f 8e 76 06 00 00 80 7b 20 00 0f 84 3d 04   RSP: 0018:ffff88811b008db8 EFLAGS: 00010202   RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000001848   RDX: 0000000000000004 RSI: 1ffff11021587b12 RDI: 0000000000000020   RBP: ffff88810adc1ae4 R08: ffff888109b7f860 R09: ffffffff90a922c0   R10: ffff88810adc1a1c R11: 000000000000003c R12: ffff888109b7f800   R13: ffff88810adc1acc R14: ffff888109b7f820 R15: 0000000000000000   FS:  0000000000000000(0000) GS:ffff88818a676000(0000) knlGS:0000000000000000   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033   CR2: 00000000005afe2b CR3: 000000010af23005 CR4: 0000000000770ef0   PKRU: 55555554   Call Trace:    \u003cIRQ\u003e    __ib_process_cq+0xe1/0x390    ib_poll_handler+0x6e/0x200    irq_poll_softirq+0x1df/0x480    ? clockevents_program_event+0x2ba/0x860    ? __pfx_irq_poll_softirq+0x10/0x10    handle_softirqs+0x18e/0x590    ? __pfx_handle_softirqs+0x10/0x10    ? __hrtimer_rearm_deferred+0x156/0x450    do_softirq+0x3b/0x60    \u003c/IRQ\u003e    \u003cTASK\u003e    __local_bh_enable_ip+0x61/0x70    __alloc_skb+0x732/0x890    ? _raw_spin_lock_irqsave+0x85/0xe0    ? __pfx___alloc_skb+0x10/0x10    ? _raw_read_unlock_irqrestore+0x16/0x50    rxe_init_packet+0x16b/0x4f0    prepare_ack_packet+0xb8/0x830    rxe_receiver+0x499/0x9980    ? __pfx_rxe_receiver+0x10/0x10    ? rxe_completer+0x29e5/0x38c0    ? hrtimer_start_range_ns_common+0x75f/0x1730    ? hrtimer_start_range_ns+0xa6/0x2c0    ? __pfx__raw_spin_lock_irqsave+0x10/0x10    ? __pfx_rxe_receiver+0x10/0x10    do_work+0x144/0x470    process_one_work+0x633/0x1030    ? assign_work+0x11d/0x370    worker_thread+0x45b/0xd10    ? __pfx_worker_thread+0x10/0x10    kthread+0x2c6/0x3b0    ? recalc_sigpending+0x15c/0x1e0    ? __pfx_kthread+0x10/0x10    ret_from_fork+0x36e/0x5a0    ? __pfx_ret_from_fork+0x10/0x10    ? __switch_to+0x572/0xdd0    ? __pfx_kthread+0x10/0x10    ret_from_fork_asm+0x1a/0x30    \u003c/TASK\u003e   Modules linked in:   ---[ end trace 0000000000000000 ]---",
  "id": "DEBIAN-CVE-2026-98358",
  "modified": "2026-10-07T04:47:35.498700764Z",
  "published": "2026-10-06T09:18:29.477Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-98358"
    }
  ],
  "upstream": [
    "CVE-2026-98358"
  ]
}