{"id":"DEBIAN-CVE-2022-48675","details":"In the Linux kernel, the following vulnerability has been resolved:  IB/core: Fix a nested dead lock as part of ODP flow  Fix a nested dead lock as part of ODP flow by using mmput_async().  From the below call trace [1] can see that calling mmput() once we have the umem_odp-\u003eumem_mutex locked as required by ib_umem_odp_map_dma_and_lock() might trigger in the same task the exit_mmap()-\u003e__mmu_notifier_release()-\u003emlx5_ib_invalidate_range() which may dead lock when trying to lock the same mutex.  Moving to use mmput_async() will solve the problem as the above exit_mmap() flow will be called in other task and will be executed once the lock will be available.  [1] [64843.077665] task:kworker/u133:2  state:D stack:    0 pid:80906 ppid: 2 flags:0x00004000 [64843.077672] Workqueue: mlx5_ib_page_fault mlx5_ib_eqe_pf_action [mlx5_ib] [64843.077719] Call Trace: [64843.077722]  \u003cTASK\u003e [64843.077724]  __schedule+0x23d/0x590 [64843.077729]  schedule+0x4e/0xb0 [64843.077735]  schedule_preempt_disabled+0xe/0x10 [64843.077740]  __mutex_lock.constprop.0+0x263/0x490 [64843.077747]  __mutex_lock_slowpath+0x13/0x20 [64843.077752]  mutex_lock+0x34/0x40 [64843.077758]  mlx5_ib_invalidate_range+0x48/0x270 [mlx5_ib] [64843.077808]  __mmu_notifier_release+0x1a4/0x200 [64843.077816]  exit_mmap+0x1bc/0x200 [64843.077822]  ? walk_page_range+0x9c/0x120 [64843.077828]  ? __cond_resched+0x1a/0x50 [64843.077833]  ? mutex_lock+0x13/0x40 [64843.077839]  ? uprobe_clear_state+0xac/0x120 [64843.077860]  mmput+0x5f/0x140 [64843.077867]  ib_umem_odp_map_dma_and_lock+0x21b/0x580 [ib_core] [64843.077931]  pagefault_real_mr+0x9a/0x140 [mlx5_ib] [64843.077962]  pagefault_mr+0xb4/0x550 [mlx5_ib] [64843.077992]  pagefault_single_data_segment.constprop.0+0x2ac/0x560 [mlx5_ib] [64843.078022]  mlx5_ib_eqe_pf_action+0x528/0x780 [mlx5_ib] [64843.078051]  process_one_work+0x22b/0x3d0 [64843.078059]  worker_thread+0x53/0x410 [64843.078065]  ? process_one_work+0x3d0/0x3d0 [64843.078073]  kthread+0x12a/0x150 [64843.078079]  ? set_kthread_struct+0x50/0x50 [64843.078085]  ret_from_fork+0x22/0x30 [64843.078093]  \u003c/TASK\u003e","modified":"2026-09-01T20:04:50.538585072Z","published":"2024-05-03T15:15:07.627Z","upstream":["CVE-2022-48675"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-48675"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.19.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-48675.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.19.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-48675.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.19.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-48675.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"}]}