{"id":"DEBIAN-CVE-2022-49930","details":"In the Linux kernel, the following vulnerability has been resolved:  RDMA/hns: Fix NULL pointer problem in free_mr_init()  Lock grab occurs in a concurrent scenario, resulting in stepping on a NULL pointer.  It should be init mutex_init() first before use the lock.    Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000   Call trace:    __mutex_lock.constprop.0+0xd0/0x5c0    __mutex_lock_slowpath+0x1c/0x2c    mutex_lock+0x44/0x50    free_mr_send_cmd_to_hw+0x7c/0x1c0 [hns_roce_hw_v2]    hns_roce_v2_dereg_mr+0x30/0x40 [hns_roce_hw_v2]    hns_roce_dereg_mr+0x4c/0x130 [hns_roce_hw_v2]    ib_dereg_mr_user+0x54/0x124    uverbs_free_mr+0x24/0x30    destroy_hw_idr_uobject+0x38/0x74    uverbs_destroy_uobject+0x48/0x1c4    uobj_destroy+0x74/0xcc    ib_uverbs_cmd_verbs+0x368/0xbb0    ib_uverbs_ioctl+0xec/0x1a4    __arm64_sys_ioctl+0xb4/0x100    invoke_syscall+0x50/0x120    el0_svc_common.constprop.0+0x58/0x190    do_el0_svc+0x30/0x90    el0_svc+0x2c/0xb4    el0t_64_sync_handler+0x1a4/0x1b0    el0t_64_sync+0x19c/0x1a0","modified":"2026-09-01T20:03:46.047625358Z","published":"2025-05-01T15:16:18.983Z","upstream":["CVE-2022-49930"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49930"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49930.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49930.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49930.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"}]}