{"id":"DEBIAN-CVE-2021-47392","details":"In the Linux kernel, the following vulnerability has been resolved:  RDMA/cma: Fix listener leak in rdma_cma_listen_on_all() failure  If cma_listen_on_all() fails it leaves the per-device ID still on the listen_list but the state is not set to RDMA_CM_ADDR_BOUND.  When the cmid is eventually destroyed cma_cancel_listens() is not called due to the wrong state, however the per-device IDs are still holding the refcount preventing the ID from being destroyed, thus deadlocking:   task:rping state:D stack:   0 pid:19605 ppid: 47036 flags:0x00000084  Call Trace:   __schedule+0x29a/0x780   ? free_unref_page_commit+0x9b/0x110   schedule+0x3c/0xa0   schedule_timeout+0x215/0x2b0   ? __flush_work+0x19e/0x1e0   wait_for_completion+0x8d/0xf0   _destroy_id+0x144/0x210 [rdma_cm]   ucma_close_id+0x2b/0x40 [rdma_ucm]   __destroy_id+0x93/0x2c0 [rdma_ucm]   ? __xa_erase+0x4a/0xa0   ucma_destroy_id+0x9a/0x120 [rdma_ucm]   ucma_write+0xb8/0x130 [rdma_ucm]   vfs_write+0xb4/0x250   ksys_write+0xb5/0xd0   ? syscall_trace_enter.isra.19+0x123/0x190   do_syscall_64+0x33/0x40   entry_SYSCALL_64_after_hwframe+0x44/0xa9  Ensure that cma_listen_on_all() atomically unwinds its action under the lock during error.","modified":"2026-09-15T09:02:40.046101953Z","published":"2024-05-21T15:15:24.553Z","upstream":["CVE-2021-47392"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-47392"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.12-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47392.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.12-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47392.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.12-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47392.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"}]}