{"id":"DEBIAN-CVE-2022-49759","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] [\u003cffff80000151d7d8\u003e] 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","modified":"2026-08-27T23:04:46.961749981Z","published":"2025-03-27T17:15:41.163Z","upstream":["CVE-2022-49759"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49759"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49759.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49759.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49759.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}