{
  "cveId": "CVE-2026-43203",
  "url": "https://patchblox.com/security/cve/CVE-2026-43203",
  "summary": "CVE-2026-43203 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-43203, released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  atm: fore200e: fix use-after-free in tasklets du...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  atm: fore200e: fix use-after-free in tasklets during device removal  When the PCA-200E or SBA-200E adapter is being detached, the fore200e is deallocated. However, the tx_tasklet or rx_tasklet may still be running or pending, leading to use-after-free bug when the already freed fore200e is accessed again in fore200e_tx_tasklet() or fore200e_rx_tasklet().  One of the race conditions can occur as follows:  CPU 0 (cleanup)           | CPU 1 (tasklet) fore200e_pca_remove_one() | fore200e_interrupt()   fore200e_shutdown()     |   tasklet_schedule()     kfree(fore200e)       | fore200e_tx_tasklet()                           |   fore200e-\u003E // UAF  Fix this by ensuring tx_tasklet or rx_tasklet is properly canceled before the fore200e is released. Add tasklet_kill() in fore200e_shutdown() to synchronize with any pending or running tasklets. Moreover, since fore200e_reset() could prevent further interrupts or data transfers, the tasklet_kill() should be placed after fore200e_reset() to prevent the tasklet from being rescheduled in fore200e_interrupt(). Finally, it only needs to do tasklet_kill() when the fore200e state is greater than or equal to FORE200E_STATE_IRQ, since tasklets are uninitialized in earlier states. In a word, the tasklet_kill() should be placed in the FORE200E_STATE_IRQ branch within the switch...case structure.  This bug was identified through static analysis.",
  "published": "2026-05-06T12:16:39Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "epss": 0.004,
  "epssPercentile": 0.3456,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
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      "platform": "linux",
      "product": "dtb-aarch64",
      "release": "opensuse-leap 16.0",
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      "fix": "OPENSUSE-SU-2026:21555-1",
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      "released": "2026-08-12T01:09:28Z"
    },
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      "product": "kernel-64kb",
      "release": "opensuse-leap 16.0",
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      "fix": "OPENSUSE-SU-2026:21555-1",
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      "released": "2026-08-12T01:09:28Z"
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      "fix": "SUSE-SU-2026:3166-1",
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      "released": "2026-07-21T17:09:27Z"
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      "fix": "SUSE-SU-2026:23231-1",
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      "released": "2026-08-11T21:26:34Z"
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  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}