cve-2021-47580
Vulnerability from cvelistv5
Published
2024-06-19 14:53
Modified
2024-11-05 14:40
Severity ?
6.6 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Summary
scsi: scsi_debug: Fix type in min_t to avoid stack OOB
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3085147645938eb41f0bc0e25ef9791e71f5ee4b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/36e07d7ede88a1f1ef8f0f209af5b7612324ac2c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bdb854f134b964528fa543e0351022eb45bd7346
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3085147645938eb41f0bc0e25ef9791e71f5ee4b
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/36e07d7ede88a1f1ef8f0f209af5b7612324ac2c
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bdb854f134b964528fa543e0351022eb45bd7346
Impacted products
Vendor Product Version
Linux Linux
Show details on NVD website

To clipboard 

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              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L",
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                "id": "CVE-2021-47580",
                "options": [
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                "timestamp": "2024-06-20T15:21:00.544492Z",
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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "5.10.88",
              "versionType": "semver"
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      "descriptions": [
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          "lang": "en",
          "value": "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"
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          "url": "https://git.kernel.org/stable/c/36e07d7ede88a1f1ef8f0f209af5b7612324ac2c"
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      "title": "scsi: scsi_debug: Fix type in min_t to avoid stack OOB",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47580",
    "datePublished": "2024-06-19T14:53:47.421Z",
    "dateReserved": "2024-05-24T15:11:00.730Z",
    "dateUpdated": "2024-11-05T14:40:37.954Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47580\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-19T15:15:52.537\",\"lastModified\":\"2024-11-21T06:36:35.680\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: scsi: scsi_debug: corrige el tipo min_t para evitar la pila OOB. Cambie min_t() para usar el tipo \\\"u32\\\" en lugar de \\\"int\\\" para evitar la pila fuera de los l\u00edmites. Con min_t() escriba \\\"int\\\", los valores se extienden y el valor mayor se usa provocando que la pila est\u00e9 fuera de los l\u00edmites. ERROR: KASAN: pila fuera de los l\u00edmites en memcpy include/linux/fortify-string.h:191 [en l\u00ednea] ERROR: KASAN: pila fuera de los l\u00edmites en sg_copy_buffer+0x1de/0x240 lib/scatterlist.c: 976 Lectura del tama\u00f1o 127 en la direcci\u00f3n ffff888072607128 mediante la tarea syz-executor.7/18707 CPU: 1 PID: 18707 Comm: syz-executor.7 No contaminado 5.15.0-syzk #1 Nombre del hardware: Red Hat KVM, BIOS 1.13.0 -2 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en l\u00ednea] 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 [en l\u00ednea] kasan_report.cold.14+0x7d/0x117 mm/kasan/report.c:459 check_region_inline mm/kasan/generic.c:183 [en l\u00ednea] 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 [en l\u00ednea] 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 controladores/scsi/scsi_debug.c:1162 fill_from_dev_buffer controladores/scsi/scsi_debug.c:1888 [en l\u00ednea] resp_readcap16+0x365/0x3b0 controladores/scsi/scsi_debug.c :1887 Schedule_resp+0x4d8/0x1a70 controladores/scsi/scsi_debug.c:5478 scsi_debug_queuecommand+0x8c9/0x1ec0 controladores/scsi/scsi_debug.c:7533 controladores scsi_dispatch_cmd/scsi/scsi_lib.c:1520 [en l\u00ednea] Controladores 0x16b0/0x2d40/ 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+0x10 5/0x190 cuadra/blk-mq-programado. 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 :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 controladores/scsi/sg.c:774 sg_ioctl_common+0x14d6/0x2710 controladores/scsi/sg.c:939 sg_ioctl+0xa2/0x180 controladores/scsi/sg.c:1165 vfs_ioctl fs/ioctl.c:51 [en l\u00ednea] __do_sys_ioctl fs/ioctl.c:874 [en l\u00ednea] __se_sys_ioctl fs/ioctl.c:860 [en l\u00ednea] __x64_sys_ioctl+0x19d/0x220 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [en l\u00ednea] llamada al sistema_64 +0x3a/0x80 arch/x86/entry/common.c:80 Entry_SYSCALL_64_after_hwframe+0x44/0xae\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L\",\"baseScore\":6.6,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.8,\"impactScore\":4.7}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3085147645938eb41f0bc0e25ef9791e71f5ee4b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/36e07d7ede88a1f1ef8f0f209af5b7612324ac2c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bdb854f134b964528fa543e0351022eb45bd7346\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3085147645938eb41f0bc0e25ef9791e71f5ee4b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/36e07d7ede88a1f1ef8f0f209af5b7612324ac2c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/bdb854f134b964528fa543e0351022eb45bd7346\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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