{"id":"DEBIAN-CVE-2022-50206","details":"In the Linux kernel, the following vulnerability has been resolved:  arm64: fix oops in concurrently setting insn_emulation sysctls  emulation_proc_handler() changes table-\u003edata for proc_dointvec_minmax and can generate the following Oops if called concurrently with itself:   | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010  | Internal error: Oops: 96000006 [#1] SMP  | Call trace:  | update_insn_emulation_mode+0xc0/0x148  | emulation_proc_handler+0x64/0xb8  | proc_sys_call_handler+0x9c/0xf8  | proc_sys_write+0x18/0x20  | __vfs_write+0x20/0x48  | vfs_write+0xe4/0x1d0  | ksys_write+0x70/0xf8  | __arm64_sys_write+0x20/0x28  | el0_svc_common.constprop.0+0x7c/0x1c0  | el0_svc_handler+0x2c/0xa0  | el0_svc+0x8/0x200  To fix this issue, keep the table-\u003edata as &insn-\u003ecurrent_mode and use container_of() to retrieve the insn pointer. Another mutex is used to protect against the current_mode update but not for retrieving insn_emulation as table-\u003edata is no longer changing.","modified":"2026-09-01T16:05:34.656559821Z","published":"2025-06-18T11:15:51.390Z","upstream":["CVE-2022-50206"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-50206"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50206.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50206.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50206.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"}]}