CVE-2022-49759 (GCVE-0-2022-49759)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:43 – Updated: 2025-10-01 17:22
VLAI?
Title
VMCI: Use threaded irqs instead of tasklets
Summary
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] [<ffff80000151d7d8>] 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
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 463713eb6164b6577f8e91447c7745628215531b , < 548ea9dd5e01b0ecf53d2563004c80abd636743d (git)
Affected: 463713eb6164b6577f8e91447c7745628215531b , < 3daed6345d5880464f46adab871d208e1baa2f3a (git)
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    Linux Linux Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 6.1.8 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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    "dateUpdated": "2025-10-01T17:22:26.307Z",
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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\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.8\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2\", \"versionStartIncluding\": \"5.18\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T08:44:47.306Z\"}}}",
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      "dataType": "CVE_RECORD",
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}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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