{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.100-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.5-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  wifi: rtw89: Correct data type for scan index to avoid infinite loop  A kernel soft lockup was observed during Wi-Fi scanning on the 6GHz band. The CPU becomes stuck in rtw89_hw_scan_add_chan_ax for over 20 seconds, leading to a system panic.  RIP points to 0f b6 c3 (movzbl %bl, %eax), which zero-extends the low 8 bits of RBX into RAX. RBX (the counter i) has reached a huge value: 0x137466a1.    watchdog: BUG: soft lockup - CPU#2 stuck for 26s! [kworker/u16:4:6124]   Workqueue: events_unbound cfg80211_wiphy_work [cfg80211]   RIP: 0010:rtw89_hw_scan_add_chan_ax+0xb3/0x6e0 [rtw89_core]   Code: a0 48 89 45 a8 44 89 6d 9c 44 89 75 98 eb 29 66 66 2e 0f 1f   84 00 00 00 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 c3 01   \u003c0f\u003e b6 c3 41 3b 44 24 74 0f 83 0b 02 00 00 0f b6 c3 48 8d 14 80 49   RSP: 0018:ffffcb48cbaa39f8 EFLAGS: 00000202   RAX: 0000000000000005 RBX: 00000000137466a1 RCX: 0000000000000000   RDX: ffff89ffc9d851a8 RSI: 0000000000004f0d RDI: 0000000096af0130   RBP: ffffcb48cbaa3a60 R08: 0000000000000000 R09: ffff8a00b7502080   R10: ffff8a00b75ff600 R11: 0000000000000000 R12: ffff89ffc7553870   R13: ffff8a00b7ac8f19 R14: ffff8a00b75020d8 R15: ffff89ffc3d54d80   FS:  0000000000000000(0000) GS:ffff8a014f962000(0000)   knlGS:0000000000000000   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033   CR2: 00007558d7f9f4c4 CR3: 0000000178040001 CR4: 00000000001706f0   Call Trace:    \u003cTASK\u003e    rtw89_hw_scan_prep_chan_list_ax+0x8a/0x400 [rtw89_core]    rtw89_hw_scan_start+0x546/0x8a0 [rtw89_core]    ? rtw89_fw_h2c_default_cmac_tbl+0x13c/0x1f0 [rtw89_core]    rtw89_ops_hw_scan+0xae/0x120 [rtw89_core]    drv_hw_scan+0xbb/0x180 [mac80211]    __ieee80211_start_scan+0x2fc/0x750 [mac80211]    ieee80211_request_scan+0xe/0x20 [mac80211]    ieee80211_scan+0x123/0x190 [mac80211]    rdev_scan+0x40/0x110 [cfg80211]    cfg80211_scan_6ghz+0x5a1/0xa30 [cfg80211]  By objdump with source:  \tfor (i = 0; i \u003c req-\u003en_6ghz_params; i++) {    5fbc0:\t83 c3 01             \tadd    $0x1,%ebx --\u003e i++    5fbc3:\t0f b6 c3             \tmovzbl %bl,%eax  --\u003e get counter    fbc6:\t41 3b 44 24 74       \tcmp    0x74(%r12),%eax     * RBX: 00000000137466a1 -\u003e %bl = a1 -\u003e EAX = 000000a1 (161)",
  "id": "DEBIAN-CVE-2026-74411",
  "modified": "2026-09-14T16:47:35.975104847Z",
  "published": "2026-08-15T06:22:43.197Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-74411"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-74411"
  ]
}