{"id":"DEBIAN-CVE-2021-47622","details":"In the Linux kernel, the following vulnerability has been resolved:  scsi: ufs: Fix a deadlock in the error handler  The following deadlock has been observed on a test setup:   - All tags allocated   - The SCSI error handler calls ufshcd_eh_host_reset_handler()   - ufshcd_eh_host_reset_handler() queues work that calls    ufshcd_err_handler()   - ufshcd_err_handler() locks up as follows:  Workqueue: ufs_eh_wq_0 ufshcd_err_handler.cfi_jt Call trace:  __switch_to+0x298/0x5d8  __schedule+0x6cc/0xa94  schedule+0x12c/0x298  blk_mq_get_tag+0x210/0x480  __blk_mq_alloc_request+0x1c8/0x284  blk_get_request+0x74/0x134  ufshcd_exec_dev_cmd+0x68/0x640  ufshcd_verify_dev_init+0x68/0x35c  ufshcd_probe_hba+0x12c/0x1cb8  ufshcd_host_reset_and_restore+0x88/0x254  ufshcd_reset_and_restore+0xd0/0x354  ufshcd_err_handler+0x408/0xc58  process_one_work+0x24c/0x66c  worker_thread+0x3e8/0xa4c  kthread+0x150/0x1b4  ret_from_fork+0x10/0x30  Fix this lockup by making ufshcd_exec_dev_cmd() allocate a reserved request.","modified":"2026-09-15T09:02:32.145935887Z","published":"2024-07-16T12:15:02.400Z","upstream":["CVE-2021-47622"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-47622"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.16.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47622.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.16.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47622.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.16.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47622.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"}]}