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soc/tegra: pmc: Fix unsafe generic_handle_irq() call

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: soc/tegra: pmc: Fix unsafe generic_handle_irq() call Currently, when resuming from system suspend on Tegra platforms, the following warning is observed: WARNING: CPU: 0 PID: 14459 at kernel/irq/irqdesc.c:666 Call trace: handle_irq_desc+0x20/0x58 (P) tegra186_pmc_wake_syscore_resume+0xe4/0x15c syscore_resume+0x3c/0xb8 suspend_devices_and_enter+0x510/0x540 pm_suspend+0x16c/0x1d8 The warning occurs because generic_handle_irq() is being called from a non-interrupt context which is considered as unsafe. Fix this warning by deferring generic_handle_irq() call to an IRQ work which gets executed in hard IRQ context where generic_handle_irq() can be called safely. When PREEMPT_RT kernels are used, regular IRQ work (initialized with init_irq_work) is deferred to run in per-CPU kthreads in preemptible context rather than hard IRQ context. Hence, use the IRQ_WORK_INIT_HARD variant so that with PREEMPT_RT kernels, the IRQ work is processed in hardirq context instead of being deferred to a thread which is required for calling generic_handle_irq(). On non-PREEMPT_RT kernels, both init_irq_work() and IRQ_WORK_INIT_HARD() execute in IRQ context, so this change has no functional impact for standard kernel configurations. [treding@nvidia.com: miscellaneous cleanups]

Announced Source revision 1
Original source ↗

CVE-2026-43311

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-43311

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
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Prerequisites
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Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
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        "status": "affected",
        "version": "0474cc8489bda9a8cd6a10252e7e6af29c849438",
        "lessThan": "d1c9c79eb06ed7c4e0a090ba5b1d4e475f7d0681",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0474cc8489bda9a8cd6a10252e7e6af29c849438",
        "lessThan": "5330afc068e90c538dd25aa8f82b3735bdb6d461",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0474cc8489bda9a8cd6a10252e7e6af29c849438",
        "lessThan": "57a79c5df057deb7c1d0ebc066698c795092530f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0474cc8489bda9a8cd6a10252e7e6af29c849438",
        "lessThan": "64016227dcdb968b7030eda04304f3d0df5d209d",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "e6d96073af681780820c94079b978474a8a44413",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/soc/tegra/pmc.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.2",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.6.143",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.114",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.57",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "6.19.6",
        "versionType": "semver",
        "lessThanOrEqual": "6.19.*"
      },
      {
        "status": "unaffected",
        "version": "7.0",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/soc/tegra/pmc.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-43311

Source reference: /cveMetadata/cveId

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Event
#46289 · Revision 1
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