{"id":"DEBIAN-CVE-2021-47580","details":"In the Linux kernel, the following vulnerability has been resolved:  scsi: scsi_debug: Fix type in min_t to avoid stack OOB  Change min_t() to use type \"u32\" instead of type \"int\" to avoid stack out of bounds. With min_t() type \"int\" the values get sign extended and the larger value gets used causing stack out of bounds.  BUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:191 [inline] BUG: KASAN: stack-out-of-bounds in sg_copy_buffer+0x1de/0x240 lib/scatterlist.c:976 Read of size 127 at addr ffff888072607128 by task syz-executor.7/18707  CPU: 1 PID: 18707 Comm: syz-executor.7 Not tainted 5.15.0-syzk #1 Hardware name: Red Hat KVM, BIOS 1.13.0-2 Call Trace:  __dump_stack lib/dump_stack.c:88 [inline]  dump_stack_lvl+0x89/0xb5 lib/dump_stack.c:106  print_address_description.constprop.9+0x28/0x160 mm/kasan/report.c:256  __kasan_report mm/kasan/report.c:442 [inline]  kasan_report.cold.14+0x7d/0x117 mm/kasan/report.c:459  check_region_inline mm/kasan/generic.c:183 [inline]  kasan_check_range+0x1a3/0x210 mm/kasan/generic.c:189  memcpy+0x23/0x60 mm/kasan/shadow.c:65  memcpy include/linux/fortify-string.h:191 [inline]  sg_copy_buffer+0x1de/0x240 lib/scatterlist.c:976  sg_copy_from_buffer+0x33/0x40 lib/scatterlist.c:1000  fill_from_dev_buffer.part.34+0x82/0x130 drivers/scsi/scsi_debug.c:1162  fill_from_dev_buffer drivers/scsi/scsi_debug.c:1888 [inline]  resp_readcap16+0x365/0x3b0 drivers/scsi/scsi_debug.c:1887  schedule_resp+0x4d8/0x1a70 drivers/scsi/scsi_debug.c:5478  scsi_debug_queuecommand+0x8c9/0x1ec0 drivers/scsi/scsi_debug.c:7533  scsi_dispatch_cmd drivers/scsi/scsi_lib.c:1520 [inline]  scsi_queue_rq+0x16b0/0x2d40 drivers/scsi/scsi_lib.c:1699  blk_mq_dispatch_rq_list+0xb9b/0x2700 block/blk-mq.c:1639  __blk_mq_sched_dispatch_requests+0x28f/0x590 block/blk-mq-sched.c:325  blk_mq_sched_dispatch_requests+0x105/0x190 block/blk-mq-sched.c:358  __blk_mq_run_hw_queue+0xe5/0x150 block/blk-mq.c:1761  __blk_mq_delay_run_hw_queue+0x4f8/0x5c0 block/blk-mq.c:1838  blk_mq_run_hw_queue+0x18d/0x350 block/blk-mq.c:1891  blk_mq_sched_insert_request+0x3db/0x4e0 block/blk-mq-sched.c:474  blk_execute_rq_nowait+0x16b/0x1c0 block/blk-exec.c:62  sg_common_write.isra.18+0xeb3/0x2000 drivers/scsi/sg.c:836  sg_new_write.isra.19+0x570/0x8c0 drivers/scsi/sg.c:774  sg_ioctl_common+0x14d6/0x2710 drivers/scsi/sg.c:939  sg_ioctl+0xa2/0x180 drivers/scsi/sg.c:1165  vfs_ioctl fs/ioctl.c:51 [inline]  __do_sys_ioctl fs/ioctl.c:874 [inline]  __se_sys_ioctl fs/ioctl.c:860 [inline]  __x64_sys_ioctl+0x19d/0x220 fs/ioctl.c:860  do_syscall_x64 arch/x86/entry/common.c:50 [inline]  do_syscall_64+0x3a/0x80 arch/x86/entry/common.c:80  entry_SYSCALL_64_after_hwframe+0x44/0xae","modified":"2026-09-15T09:02:32.054964131Z","published":"2024-06-19T15:15:52.537Z","upstream":["CVE-2021-47580"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-47580"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.15-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47580.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.15-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47580.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.15-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47580.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:H/I:N/A:H"}]}