CVE-2026-99153

Что произошло

In the Linux kernel, the following vulnerability has been resolved: scsi: libiscsi: Validate the ITT reflected in a Reject PDU A Reject PDU carries a copy of the header it rejects, and iscsi_handle_reject() takes the ITT out of that copy to find the task to clean up: memcpy(&rejected_pdu, data, sizeof(struct iscsi_hdr)); ... task = iscsi_itt_to_task(conn, rejected_pdu.itt); That value is whatever the target put there. iscsi_itt_to_task() bounds the index against cmds_max and checks nothing else, so any task in the pool can be named, and iscsi_nop_out_rsp() then completes it. An index that has never been used gives a NULL task->conn: the pool is zeroed at session setup and conn is assigned only when a task is allocated. If the task was used and returned, iscsi_complete_task() hits its WARN_ON_ONCE(task->state == ISCSI_TASK_FREE) and the refcount underflows. An in-flight SCSI command is completed as successful - a 1 MiB read returned 1048576 with none of its buffer written and no warning. Validate the reflected ITT the way iscsi_itt_to_ctask() validates a command ITT, and require the task to be in flight and not a SCSI command. [ 6.248477] Oops: general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] SMP KASAN NOPTI [ 6.249357] KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067] [ 6.249951] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 7.2.0-rc5-ISCSI1-gf5098b6bae76 #1 PREEMPT(lazy) [ 6.250718] 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 [ 6.251616] RIP: 0010:iscsi_nop_out_rsp.constprop.0+0x46/0x160 [ 6.252043] Code: c1 ea 03 48 83 ec 08 80 3c 02 00 0f 85 f5 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 58 48 8d 7d 60 48 89 fa 48 c1 ea 03 3c 02 00 0f 85 c0 00 00 00 48 8b 45 60 48 39 c3 74 50 48 b8 00 [ 6.252813] RSP: 0018:ffff88806c907b80 EFLAGS: 00010206 [ 6.253042] RAX: dffffc0000000000 RBX: ffff88800607e000 RCX: ffffffff8d571a25 [ 6.253345] RDX: 000000000000000c RSI: ffff88806c907c38 RDI: 0000000000000060 [ 6.253642] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff235a504 [ 6.253947] R10: 0000000000000003 R11: 7463656e6e6f6320 R12: 0000000000000000 [ 6.254251] R13: 0000000000000000 R14: ffff88806c907c38 R15: 0000000000000000 [ 6.254549] FS: 0000000000000000(0000) GS:ffff8880d95bc000(0000) knlGS:0000000000000000 [ 6.254887] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6.255140] CR2: 00007fc393e8ffc0 CR3: 0000000005252006 CR4: 0000000000770ef0 [ 6.255439] PKRU: 55555554 [ 6.255564] Call Trace: [ 6.255674] [ 6.255768] __iscsi_complete_pdu+0x18bf/0x22a0 [ 6.256733] iscsi_complete_pdu+0x54/0xa0 [ 6.256905] iscsi_tcp_data_recv_done+0xf4/0x250 [ 6.257103] iscsi_tcp_recv_skb+0x31e/0xec0 [ 6.257680] iscsi_sw_tcp_recv+0x12f/0x390 [ 6.258061] __tcp_read_sock+0x1ab/0x810 [ 6.258853] iscsi_sw_tcp_data_ready+0x18b/0x510 [ 6.259808] tcp_data_queue+0x1f13/0x4cd0 [ 6.260567] tcp_rcv_established+0x8a5/0x3a00 [ 6.261931] tcp_v4_do_rcv+0x449/0x960 [ 6.262269] tcp_v4_rcv+0x2245/0x3bc0

Что делать

dpkg-query -W -f='${Package}	${Version}\n'

rpm -qa --qf '%{NAME}\t%{VERSION}-%{RELEASE}\n'

Get-HotFix | Select-Object HotFixID, InstalledOn

Продукты и затронутые версии

{
  "status": "affected",
  "version": "8afa1439fcff58da8f28c1d083046f229f6ab3de",
  "lessThan": "3637a4ad1d07477f1c60609876da6b60154d224b",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "8afa1439fcff58da8f28c1d083046f229f6ab3de",
  "lessThan": "21ef746340ce246344f34278e205b8960c1d8874",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "8afa1439fcff58da8f28c1d083046f229f6ab3de",
  "lessThan": "d20583a9dbe0d32a9af8384c857c95c0fc115103",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "8afa1439fcff58da8f28c1d083046f229f6ab3de",
  "lessThan": "ebb8c5ef2aabf66895253600e8390e8fc7094807",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "8afa1439fcff58da8f28c1d083046f229f6ab3de",
  "lessThan": "576125e7382a7826bd6c3c1ca4d9c582ed5be21d",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "8afa1439fcff58da8f28c1d083046f229f6ab3de",
  "lessThan": "7215a69b6456fda79c0935c2959045dff3fcaac8",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "8afa1439fcff58da8f28c1d083046f229f6ab3de",
  "lessThan": "d79343ae3223b3f7f74b55e79f8a1371fa3f4b1a",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "8afa1439fcff58da8f28c1d083046f229f6ab3de",
  "lessThan": "c5958c770b2a0ee492414e26b07da9164a0d1f5d",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "2.6.32"
}

{
  "status": "unaffected",
  "version": "0",
  "lessThan": "2.6.32",
  "versionType": "semver"
}

{
  "status": "unaffected",
  "version": "5.10.273",
  "versionType": "semver",
  "lessThanOrEqual": "5.10.*"
}

{
  "status": "unaffected",
  "version": "5.15.224",
  "versionType": "semver",
  "lessThanOrEqual": "5.15.*"
}

{
  "status": "unaffected",
  "version": "6.1.191",
  "versionType": "semver",
  "lessThanOrEqual": "6.1.*"
}

{
  "status": "unaffected",
  "version": "6.6.161",
  "versionType": "semver",
  "lessThanOrEqual": "6.6.*"
}

{
  "status": "unaffected",
  "version": "6.12.115",
  "versionType": "semver",
  "lessThanOrEqual": "6.12.*"
}

{
  "status": "unaffected",
  "version": "6.18.59",
  "versionType": "semver",
  "lessThanOrEqual": "6.18.*"
}

{
  "status": "unaffected",
  "version": "7.2.13",
  "versionType": "semver",
  "lessThanOrEqual": "7.2.*"
}

{
  "status": "unaffected",
  "version": "7.3",
  "versionType": "original_commit_for_fix",
  "lessThanOrEqual": "*"
}

CVSS: оценки и векторы

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Источники и ссылки

{
  "cwes": [],
  "epss": {
    "source": "epss",
    "received_at": "2026-11-01T21:13:22.717643+00:00"
  },
  "title": {
    "source": "cve",
    "received_at": "2026-11-01T21:02:04.867570+00:00"
  },
  "scores": [
    "cve",
    "ghsa",
    "nvd"
  ],
  "status": {
    "source": "cve",
    "received_at": "2026-11-01T21:02:04.867570+00:00"
  },
  "affected": [
    "cve"
  ],
  "published": {
    "source": "cve",
    "received_at": "2026-11-01T21:02:04.867570+00:00"
  },
  "solutions": [],
  "percentile": {
    "source": "epss",
    "received_at": "2026-11-01T21:13:22.717643+00:00"
  },
  "references": [
    "cve",
    "ghsa",
    "nvd"
  ],
  "description": {
    "source": "cve",
    "received_at": "2026-11-01T21:02:04.867570+00:00"
  },
  "workarounds": [],
  "configurations": []
}

Хронология записи

1. Данные обновлены02.11.2026, 03:33
2. Данные обновлены02.11.2026, 00:13
3. Данные обновлены02.11.2026, 00:02
4. Данные обновлены02.11.2026, 00:01
5. Данные обновлены31.10.2026, 12:00
6. Данные обновлены30.10.2026, 15:58
7. Данные обновлены28.10.2026, 23:51
8. Данные обновлены28.10.2026, 18:00
9. Опубликована28.10.2026, 15:17

Личная заметка и статус

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