ghsa-94pf-4p5q-jc3r
Vulnerability from github
Published
2024-03-03 00:30
Modified
2024-03-03 00:30
Details

In the Linux kernel, the following vulnerability has been resolved:

iommu/vt-d: Avoid memory allocation in iommu_suspend()

The iommu_suspend() syscore suspend callback is invoked with IRQ disabled. Allocating memory with the GFP_KERNEL flag may re-enable IRQs during the suspend callback, which can cause intermittent suspend/hibernation problems with the following kernel traces:

Calling iommu_suspend+0x0/0x1d0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 15 at kernel/time/timekeeping.c:868 ktime_get+0x9b/0xb0 ... CPU: 0 PID: 15 Comm: rcu_preempt Tainted: G U E 6.3-intel #r1 RIP: 0010:ktime_get+0x9b/0xb0 ... Call Trace: tick_sched_timer+0x22/0x90 ? __pfx_tick_sched_timer+0x10/0x10 __hrtimer_run_queues+0x111/0x2b0 hrtimer_interrupt+0xfa/0x230 __sysvec_apic_timer_interrupt+0x63/0x140 sysvec_apic_timer_interrupt+0x7b/0xa0 asm_sysvec_apic_timer_interrupt+0x1f/0x30 ... ------------[ cut here ]------------ Interrupts enabled after iommu_suspend+0x0/0x1d0 WARNING: CPU: 0 PID: 27420 at drivers/base/syscore.c:68 syscore_suspend+0x147/0x270 CPU: 0 PID: 27420 Comm: rtcwake Tainted: G U W E 6.3-intel #r1 RIP: 0010:syscore_suspend+0x147/0x270 ... Call Trace: hibernation_snapshot+0x25b/0x670 hibernate+0xcd/0x390 state_store+0xcf/0xe0 kobj_attr_store+0x13/0x30 sysfs_kf_write+0x3f/0x50 kernfs_fop_write_iter+0x128/0x200 vfs_write+0x1fd/0x3c0 ksys_write+0x6f/0xf0 __x64_sys_write+0x1d/0x30 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc

Given that only 4 words memory is needed, avoid the memory allocation in iommu_suspend().

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2023-52559"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-02T22:15:48Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Avoid memory allocation in iommu_suspend()\n\nThe iommu_suspend() syscore suspend callback is invoked with IRQ disabled.\nAllocating memory with the GFP_KERNEL flag may re-enable IRQs during\nthe suspend callback, which can cause intermittent suspend/hibernation\nproblems with the following kernel traces:\n\nCalling iommu_suspend+0x0/0x1d0\n------------[ cut here ]------------\nWARNING: CPU: 0 PID: 15 at kernel/time/timekeeping.c:868 ktime_get+0x9b/0xb0\n...\nCPU: 0 PID: 15 Comm: rcu_preempt Tainted: G     U      E      6.3-intel #r1\nRIP: 0010:ktime_get+0x9b/0xb0\n...\nCall Trace:\n \u003cIRQ\u003e\n tick_sched_timer+0x22/0x90\n ? __pfx_tick_sched_timer+0x10/0x10\n __hrtimer_run_queues+0x111/0x2b0\n hrtimer_interrupt+0xfa/0x230\n __sysvec_apic_timer_interrupt+0x63/0x140\n sysvec_apic_timer_interrupt+0x7b/0xa0\n \u003c/IRQ\u003e\n \u003cTASK\u003e\n asm_sysvec_apic_timer_interrupt+0x1f/0x30\n...\n------------[ cut here ]------------\nInterrupts enabled after iommu_suspend+0x0/0x1d0\nWARNING: CPU: 0 PID: 27420 at drivers/base/syscore.c:68 syscore_suspend+0x147/0x270\nCPU: 0 PID: 27420 Comm: rtcwake Tainted: G     U  W   E      6.3-intel #r1\nRIP: 0010:syscore_suspend+0x147/0x270\n...\nCall Trace:\n \u003cTASK\u003e\n hibernation_snapshot+0x25b/0x670\n hibernate+0xcd/0x390\n state_store+0xcf/0xe0\n kobj_attr_store+0x13/0x30\n sysfs_kf_write+0x3f/0x50\n kernfs_fop_write_iter+0x128/0x200\n vfs_write+0x1fd/0x3c0\n ksys_write+0x6f/0xf0\n __x64_sys_write+0x1d/0x30\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nGiven that only 4 words memory is needed, avoid the memory allocation in\niommu_suspend().",
  "id": "GHSA-94pf-4p5q-jc3r",
  "modified": "2024-03-03T00:30:32Z",
  "published": "2024-03-03T00:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52559"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29298c85a81abdc512e87537515ed4b1a9601d0e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/496c591f0b389eb782f36d9d4c2564b9a865eed0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/59df44bfb0ca4c3ee1f1c3c5d0ee8e314844799e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c12ef025add77ca3a0902e8719d552b6d47b4282"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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