{"id":"DEBIAN-CVE-2022-50193","details":"In the Linux kernel, the following vulnerability has been resolved:  erofs: wake up all waiters after z_erofs_lzma_head ready  When the user mounts the erofs second times, the decompression thread may hung. The problem happens due to a sequence of steps like the following:  1) Task A called z_erofs_load_lzma_config which obtain all of the node    from the z_erofs_lzma_head.  2) At this time, task B called the z_erofs_lzma_decompress and wanted to    get a node. But the z_erofs_lzma_head was empty, the Task B had to    sleep.  3) Task A release nodes and push nodes into the z_erofs_lzma_head. But    task B was still sleeping.  One example report when the hung happens: task:kworker/u3:1 state:D stack:14384 pid: 86 ppid: 2 flags:0x00004000 Workqueue: erofs_unzipd z_erofs_decompressqueue_work Call Trace:  \u003cTASK\u003e  __schedule+0x281/0x760  schedule+0x49/0xb0  z_erofs_lzma_decompress+0x4bc/0x580  ? cpu_core_flags+0x10/0x10  z_erofs_decompress_pcluster+0x49b/0xba0  ? __update_load_avg_se+0x2b0/0x330  ? __update_load_avg_se+0x2b0/0x330  ? update_load_avg+0x5f/0x690  ? update_load_avg+0x5f/0x690  ? set_next_entity+0xbd/0x110  ? _raw_spin_unlock+0xd/0x20  z_erofs_decompress_queue.isra.0+0x2e/0x50  z_erofs_decompressqueue_work+0x30/0x60  process_one_work+0x1d3/0x3a0  worker_thread+0x45/0x3a0  ? process_one_work+0x3a0/0x3a0  kthread+0xe2/0x110  ? kthread_complete_and_exit+0x20/0x20  ret_from_fork+0x22/0x30  \u003c/TASK\u003e","modified":"2026-08-27T23:04:19.246481394Z","published":"2025-06-18T11:15:49.920Z","upstream":["CVE-2022-50193"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-50193"}],"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-2022-50193.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-2022-50193.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-2022-50193.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"}]}