{
  "cveId": "CVE-2025-71162",
  "url": "https://patchblox.com/security/cve/CVE-2025-71162",
  "summary": "CVE-2025-71162 is fixed in 18 products on 1 platform, first by DEBIAN-CVE-2025-71162, released January 25, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  dmaengine: tegra-adma: Fix use-after-free  A use...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  dmaengine: tegra-adma: Fix use-after-free  A use-after-free bug exists in the Tegra ADMA driver when audio streams are terminated, particularly during XRUN conditions. The issue occurs when the DMA buffer is freed by tegra_adma_terminate_all() before the vchan completion tasklet finishes accessing it.  The race condition follows this sequence:    1. DMA transfer completes, triggering an interrupt that schedules the      completion tasklet (tasklet has not executed yet)   2. Audio playback stops, calling tegra_adma_terminate_all() which      frees the DMA buffer memory via kfree()   3. The scheduled tasklet finally executes, calling vchan_complete()      which attempts to access the already-freed memory  Since tasklets can execute at any time after being scheduled, there is no guarantee that the buffer will remain valid when vchan_complete() runs.  Fix this by properly synchronizing the virtual channel completion:  - Calling vchan_terminate_vdesc() in tegra_adma_stop() to mark the    descriptors as terminated instead of freeing the descriptor.  - Add the callback tegra_adma_synchronize() that calls    vchan_synchronize() which kills any pending tasklets and frees any    terminated descriptors.  Crash logs: [  337.427523] BUG: KASAN: use-after-free in vchan_complete\u002B0x124/0x3b0 [  337.427544] Read of size 8 at addr ffff000132055428 by task swapper/0/0  [  337.427562] Call trace: [  337.427564]  dump_backtrace\u002B0x0/0x320 [  337.427571]  show_stack\u002B0x20/0x30 [  337.427575]  dump_stack_lvl\u002B0x68/0x84 [  337.427584]  print_address_description.constprop.0\u002B0x74/0x2b8 [  337.427590]  kasan_report\u002B0x1f4/0x210 [  337.427598]  __asan_load8\u002B0xa0/0xd0 [  337.427603]  vchan_complete\u002B0x124/0x3b0 [  337.427609]  tasklet_action_common.constprop.0\u002B0x190/0x1d0 [  337.427617]  tasklet_action\u002B0x30/0x40 [  337.427623]  __do_softirq\u002B0x1a0/0x5c4 [  337.427628]  irq_exit\u002B0x110/0x140 [  337.427633]  handle_domain_irq\u002B0xa4/0xe0 [  337.427640]  gic_handle_irq\u002B0x64/0x160 [  337.427644]  call_on_irq_stack\u002B0x20/0x4c [  337.427649]  do_interrupt_handler\u002B0x7c/0x90 [  337.427654]  el1_interrupt\u002B0x30/0x80 [  337.427659]  el1h_64_irq_handler\u002B0x18/0x30 [  337.427663]  el1h_64_irq\u002B0x7c/0x80 [  337.427667]  cpuidle_enter_state\u002B0xe4/0x540 [  337.427674]  cpuidle_enter\u002B0x54/0x80 [  337.427679]  do_idle\u002B0x2e0/0x380 [  337.427685]  cpu_startup_entry\u002B0x2c/0x70 [  337.427690]  rest_init\u002B0x114/0x130 [  337.427695]  arch_call_rest_init\u002B0x18/0x24 [  337.427702]  start_kernel\u002B0x380/0x3b4 [  337.427706]  __primary_switched\u002B0xc0/0xc8",
  "published": "2026-01-25T15:15:53Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.0021,
  "epssPercentile": 0.113,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
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      "product": "dtb-aarch64",
      "release": "opensuse-leap 16.0",
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      "fix": "OPENSUSE-SU-2026:20287-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-20287-1",
      "released": "2026-02-27T13:03:55Z"
    },
    {
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      "product": "kernel-64kb",
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      "fix": "OPENSUSE-SU-2026:20287-1",
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      "released": "2026-02-27T11:51:02Z"
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      "fix": "SUSE-SU-2026:0472-1",
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      "released": "2026-02-12T11:26:05Z"
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  "noFixYet": [],
  "dataAsOf": "2026-11-10T01:44:33Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
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}