ghsa-jhxv-jq7p-9qhc
Vulnerability from github
Published
2025-03-27 18:31
Modified
2025-04-15 15:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

VMCI: Use threaded irqs instead of tasklets

The vmci_dispatch_dgs() tasklet function calls vmci_read_data() which uses wait_event() resulting in invalid sleep in an atomic context (and therefore potentially in a deadlock).

Use threaded irqs to fix this issue and completely remove usage of tasklets.

[ 20.264639] BUG: sleeping function called from invalid context at drivers/misc/vmw_vmci/vmci_guest.c:145 [ 20.264643] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 762, name: vmtoolsd [ 20.264645] preempt_count: 101, expected: 0 [ 20.264646] RCU nest depth: 0, expected: 0 [ 20.264647] 1 lock held by vmtoolsd/762: [ 20.264648] #0: ffff0000874ae440 (sk_lock-AF_VSOCK){+.+.}-{0:0}, at: vsock_connect+0x60/0x330 [vsock] [ 20.264658] Preemption disabled at: [ 20.264659] [] vmci_send_datagram+0x44/0xa0 [vmw_vmci] [ 20.264665] CPU: 0 PID: 762 Comm: vmtoolsd Not tainted 5.19.0-0.rc8.20220727git39c3c396f813.60.fc37.aarch64 #1 [ 20.264667] Hardware name: VMware, Inc. VBSA/VBSA, BIOS VEFI 12/31/2020 [ 20.264668] Call trace: [ 20.264669] dump_backtrace+0xc4/0x130 [ 20.264672] show_stack+0x24/0x80 [ 20.264673] dump_stack_lvl+0x88/0xb4 [ 20.264676] dump_stack+0x18/0x34 [ 20.264677] __might_resched+0x1a0/0x280 [ 20.264679] __might_sleep+0x58/0x90 [ 20.264681] vmci_read_data+0x74/0x120 [vmw_vmci] [ 20.264683] vmci_dispatch_dgs+0x64/0x204 [vmw_vmci] [ 20.264686] tasklet_action_common.constprop.0+0x13c/0x150 [ 20.264688] tasklet_action+0x40/0x50 [ 20.264689] __do_softirq+0x23c/0x6b4 [ 20.264690] __irq_exit_rcu+0x104/0x214 [ 20.264691] irq_exit_rcu+0x1c/0x50 [ 20.264693] el1_interrupt+0x38/0x6c [ 20.264695] el1h_64_irq_handler+0x18/0x24 [ 20.264696] el1h_64_irq+0x68/0x6c [ 20.264697] preempt_count_sub+0xa4/0xe0 [ 20.264698] _raw_spin_unlock_irqrestore+0x64/0xb0 [ 20.264701] vmci_send_datagram+0x7c/0xa0 [vmw_vmci] [ 20.264703] vmci_datagram_dispatch+0x84/0x100 [vmw_vmci] [ 20.264706] vmci_datagram_send+0x2c/0x40 [vmw_vmci] [ 20.264709] vmci_transport_send_control_pkt+0xb8/0x120 [vmw_vsock_vmci_transport] [ 20.264711] vmci_transport_connect+0x40/0x7c [vmw_vsock_vmci_transport] [ 20.264713] vsock_connect+0x278/0x330 [vsock] [ 20.264715] __sys_connect_file+0x8c/0xc0 [ 20.264718] __sys_connect+0x84/0xb4 [ 20.264720] __arm64_sys_connect+0x2c/0x3c [ 20.264721] invoke_syscall+0x78/0x100 [ 20.264723] el0_svc_common.constprop.0+0x68/0x124 [ 20.264724] do_el0_svc+0x38/0x4c [ 20.264725] el0_svc+0x60/0x180 [ 20.264726] el0t_64_sync_handler+0x11c/0x150 [ 20.264728] el0t_64_sync+0x190/0x194

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-49759"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-27T17:15:41Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nVMCI: Use threaded irqs instead of tasklets\n\nThe vmci_dispatch_dgs() tasklet function calls vmci_read_data()\nwhich uses wait_event() resulting in invalid sleep in an atomic\ncontext (and therefore potentially in a deadlock).\n\nUse threaded irqs to fix this issue and completely remove usage\nof tasklets.\n\n[   20.264639] BUG: sleeping function called from invalid context at drivers/misc/vmw_vmci/vmci_guest.c:145\n[   20.264643] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 762, name: vmtoolsd\n[   20.264645] preempt_count: 101, expected: 0\n[   20.264646] RCU nest depth: 0, expected: 0\n[   20.264647] 1 lock held by vmtoolsd/762:\n[   20.264648]  #0: ffff0000874ae440 (sk_lock-AF_VSOCK){+.+.}-{0:0}, at: vsock_connect+0x60/0x330 [vsock]\n[   20.264658] Preemption disabled at:\n[   20.264659] [\u003cffff80000151d7d8\u003e] vmci_send_datagram+0x44/0xa0 [vmw_vmci]\n[   20.264665] CPU: 0 PID: 762 Comm: vmtoolsd Not tainted 5.19.0-0.rc8.20220727git39c3c396f813.60.fc37.aarch64 #1\n[   20.264667] Hardware name: VMware, Inc. VBSA/VBSA, BIOS VEFI 12/31/2020\n[   20.264668] Call trace:\n[   20.264669]  dump_backtrace+0xc4/0x130\n[   20.264672]  show_stack+0x24/0x80\n[   20.264673]  dump_stack_lvl+0x88/0xb4\n[   20.264676]  dump_stack+0x18/0x34\n[   20.264677]  __might_resched+0x1a0/0x280\n[   20.264679]  __might_sleep+0x58/0x90\n[   20.264681]  vmci_read_data+0x74/0x120 [vmw_vmci]\n[   20.264683]  vmci_dispatch_dgs+0x64/0x204 [vmw_vmci]\n[   20.264686]  tasklet_action_common.constprop.0+0x13c/0x150\n[   20.264688]  tasklet_action+0x40/0x50\n[   20.264689]  __do_softirq+0x23c/0x6b4\n[   20.264690]  __irq_exit_rcu+0x104/0x214\n[   20.264691]  irq_exit_rcu+0x1c/0x50\n[   20.264693]  el1_interrupt+0x38/0x6c\n[   20.264695]  el1h_64_irq_handler+0x18/0x24\n[   20.264696]  el1h_64_irq+0x68/0x6c\n[   20.264697]  preempt_count_sub+0xa4/0xe0\n[   20.264698]  _raw_spin_unlock_irqrestore+0x64/0xb0\n[   20.264701]  vmci_send_datagram+0x7c/0xa0 [vmw_vmci]\n[   20.264703]  vmci_datagram_dispatch+0x84/0x100 [vmw_vmci]\n[   20.264706]  vmci_datagram_send+0x2c/0x40 [vmw_vmci]\n[   20.264709]  vmci_transport_send_control_pkt+0xb8/0x120 [vmw_vsock_vmci_transport]\n[   20.264711]  vmci_transport_connect+0x40/0x7c [vmw_vsock_vmci_transport]\n[   20.264713]  vsock_connect+0x278/0x330 [vsock]\n[   20.264715]  __sys_connect_file+0x8c/0xc0\n[   20.264718]  __sys_connect+0x84/0xb4\n[   20.264720]  __arm64_sys_connect+0x2c/0x3c\n[   20.264721]  invoke_syscall+0x78/0x100\n[   20.264723]  el0_svc_common.constprop.0+0x68/0x124\n[   20.264724]  do_el0_svc+0x38/0x4c\n[   20.264725]  el0_svc+0x60/0x180\n[   20.264726]  el0t_64_sync_handler+0x11c/0x150\n[   20.264728]  el0t_64_sync+0x190/0x194",
  "id": "GHSA-jhxv-jq7p-9qhc",
  "modified": "2025-04-15T15:30:47Z",
  "published": "2025-03-27T18:31:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49759"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3daed6345d5880464f46adab871d208e1baa2f3a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/548ea9dd5e01b0ecf53d2563004c80abd636743d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.