{
  "cveId": "CVE-2026-43285",
  "url": "https://patchblox.com/security/cve/CVE-2026-43285",
  "summary": "CVE-2026-43285 is fixed in 23 products on 1 platform, first by ALAS2023-2026-1702, released May 11, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  mm/slab: do not access current-\u003Emems_allowed_seq...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  mm/slab: do not access current-\u003Emems_allowed_seq if !allow_spin  Lockdep complains when get_from_any_partial() is called in an NMI context, because current-\u003Emems_allowed_seq is seqcount_spinlock_t and not NMI-safe:    ================================   WARNING: inconsistent lock state   6.19.0-rc5-kfree-rcu\u002B #315 Tainted: G                 N   --------------------------------   inconsistent {INITIAL USE} -\u003E {IN-NMI} usage.   kunit_try_catch/9989 [HC1[1]:SC0[0]:HE0:SE1] takes:   ffff889085799820 (\u0026____s-\u003Eseqcount#3){.-.-}-{0:0}, at: ___slab_alloc\u002B0x58f/0xc00   {INITIAL USE} state was registered at:     lock_acquire\u002B0x185/0x320     kernel_init_freeable\u002B0x391/0x1150     kernel_init\u002B0x1f/0x220     ret_from_fork\u002B0x736/0x8f0     ret_from_fork_asm\u002B0x1a/0x30   irq event stamp: 56   hardirqs last  enabled at (55): [\u003Cffffffff850a68d7\u003E] _raw_spin_unlock_irq\u002B0x27/0x70   hardirqs last disabled at (56): [\u003Cffffffff850858ca\u003E] __schedule\u002B0x2a8a/0x6630   softirqs last  enabled at (0): [\u003Cffffffff81536711\u003E] copy_process\u002B0x1dc1/0x6a10   softirqs last disabled at (0): [\u003C0000000000000000\u003E] 0x0    other info that might help us debug this:    Possible unsafe locking scenario:           CPU0          ----     lock(\u0026____s-\u003Eseqcount#3);     \u003CInterrupt\u003E       lock(\u0026____s-\u003Eseqcount#3);     *** DEADLOCK ***  According to Documentation/locking/seqlock.rst, seqcount_t is not NMI-safe and seqcount_latch_t should be used when read path can interrupt the write-side critical section. In this case, do not access current-\u003Emems_allowed_seq and avoid retry.",
  "published": "2026-05-08T14:16:35Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00121,
  "epssPercentile": 0.01894,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.18.16-18.222",
      "release": "amzn 2023",
      "fixedVersion": "1:1.0-0.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-headers",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf-static",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra-common",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.19.6-1",
      "fix": "DEBIAN-CVE-2026-43285",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-43285",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.16-18.222.amzn2023",
      "fix": "ALAS2023-2026-1702",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1702",
      "released": "2026-05-11T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}