{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2021-47580", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47580", "idYear": 2021, "status": "PUBLISHED", "publishedAt": "2024-06-19T14:53:47.421Z", "updatedAt": "2026-08-05T08:48:28.526Z", "importedAt": "2026-10-24T01:56:36.661Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "scsi: scsi_debug: Fix type in min_t to avoid stack OOB", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: scsi_debug: Fix type in min_t to avoid stack OOB\n\nChange min_t() to use type \"u32\" instead of type \"int\" to avoid stack out\nof bounds. With min_t() type \"int\" the values get sign extended and the\nlarger value gets used causing stack out of bounds.\n\nBUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:191 [inline]\nBUG: KASAN: stack-out-of-bounds in sg_copy_buffer+0x1de/0x240 lib/scatterlist.c:976\nRead of size 127 at addr ffff888072607128 by task syz-executor.7/18707\n\nCPU: 1 PID: 18707 Comm: syz-executor.7 Not tainted 5.15.0-syzk #1\nHardware name: Red Hat KVM, BIOS 1.13.0-2\nCall Trace:\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x89/0xb5 lib/dump_stack.c:106\n print_address_description.constprop.9+0x28/0x160 mm/kasan/report.c:256\n __kasan_report mm/kasan/report.c:442 [inline]\n kasan_report.cold.14+0x7d/0x117 mm/kasan/report.c:459\n check_region_inline mm/kasan/generic.c:183 [inline]\n kasan_check_range+0x1a3/0x210 mm/kasan/generic.c:189\n memcpy+0x23/0x60 mm/kasan/shadow.c:65\n memcpy include/linux/fortify-string.h:191 [inline]\n sg_copy_buffer+0x1de/0x240 lib/scatterlist.c:976\n sg_copy_from_buffer+0x33/0x40 lib/scatterlist.c:1000\n fill_from_dev_buffer.part.34+0x82/0x130 drivers/scsi/scsi_debug.c:1162\n fill_from_dev_buffer drivers/scsi/scsi_debug.c:1888 [inline]\n resp_readcap16+0x365/0x3b0 drivers/scsi/scsi_debug.c:1887\n schedule_resp+0x4d8/0x1a70 drivers/scsi/scsi_debug.c:5478\n scsi_debug_queuecommand+0x8c9/0x1ec0 drivers/scsi/scsi_debug.c:7533\n scsi_dispatch_cmd drivers/scsi/scsi_lib.c:1520 [inline]\n scsi_queue_rq+0x16b0/0x2d40 drivers/scsi/scsi_lib.c:1699\n blk_mq_dispatch_rq_list+0xb9b/0x2700 block/blk-mq.c:1639\n __blk_mq_sched_dispatch_requests+0x28f/0x590 block/blk-mq-sched.c:325\n blk_mq_sched_dispatch_requests+0x105/0x190 block/blk-mq-sched.c:358\n __blk_mq_run_hw_queue+0xe5/0x150 block/blk-mq.c:1761\n __blk_mq_delay_run_hw_queue+0x4f8/0x5c0 block/blk-mq.c:1838\n blk_mq_run_hw_queue+0x18d/0x350 block/blk-mq.c:1891\n blk_mq_sched_insert_request+0x3db/0x4e0 block/blk-mq-sched.c:474\n blk_execute_rq_nowait+0x16b/0x1c0 block/blk-exec.c:62\n sg_common_write.isra.18+0xeb3/0x2000 drivers/scsi/sg.c:836\n sg_new_write.isra.19+0x570/0x8c0 drivers/scsi/sg.c:774\n sg_ioctl_common+0x14d6/0x2710 drivers/scsi/sg.c:939\n sg_ioctl+0xa2/0x180 drivers/scsi/sg.c:1165\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:874 [inline]\n __se_sys_ioctl fs/ioctl.c:860 [inline]\n __x64_sys_ioctl+0x19d/0x220 fs/ioctl.c:860\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3a/0x80 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "87c715dcde633f4cc4690a24a240e838181e6a9d", "status": "affected", "versionType": "git", "lessThan": "bdb854f134b964528fa543e0351022eb45bd7346" }, { "version": "87c715dcde633f4cc4690a24a240e838181e6a9d", "status": "affected", "versionType": "git", "lessThan": "3085147645938eb41f0bc0e25ef9791e71f5ee4b" }, { "version": "87c715dcde633f4cc4690a24a240e838181e6a9d", "status": "affected", "versionType": "git", "lessThan": "36e07d7ede88a1f1ef8f0f209af5b7612324ac2c" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.8", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.8" }, { "version": "5.10.88", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.11", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "5.16", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }