[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2021-47341":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T08:53:30.047Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":30,"epss":9,"epss_history":31,"metrics":32,"affected":39},"DEBIAN-CVE-2021-47341","In the Linux kernel, the following vulnerability has been resolved:  KVM: mmio: Fix use-after-free Read in kvm_vm_ioctl_unregister_coalesced_mmio  BUG: KASAN: use-after-free in kvm_vm_ioctl_unregister_coalesced_mmio+0x7c/0x1ec arch/arm64/kvm/../../../virt/kvm/coalesced_mmio.c:183 Read of size 8 at addr ffff0000c03a2500 by task syz-executor083/4269  CPU: 5 PID: 4269 Comm: syz-executor083 Not tainted 5.10.0 #7 Hardware name: linux,dummy-virt (DT) Call trace:  dump_backtrace+0x0/0x2d0 arch/arm64/kernel/stacktrace.c:132  show_stack+0x28/0x34 arch/arm64/kernel/stacktrace.c:196  __dump_stack lib/dump_stack.c:77 [inline]  dump_stack+0x110/0x164 lib/dump_stack.c:118  print_address_description+0x78/0x5c8 mm/kasan/report.c:385  __kasan_report mm/kasan/report.c:545 [inline]  kasan_report+0x148/0x1e4 mm/kasan/report.c:562  check_memory_region_inline mm/kasan/generic.c:183 [inline]  __asan_load8+0xb4/0xbc mm/kasan/generic.c:252  kvm_vm_ioctl_unregister_coalesced_mmio+0x7c/0x1ec arch/arm64/kvm/../../../virt/kvm/coalesced_mmio.c:183  kvm_vm_ioctl+0xe30/0x14c4 arch/arm64/kvm/../../../virt/kvm/kvm_main.c:3755  vfs_ioctl fs/ioctl.c:48 [inline]  __do_sys_ioctl fs/ioctl.c:753 [inline]  __se_sys_ioctl fs/ioctl.c:739 [inline]  __arm64_sys_ioctl+0xf88/0x131c fs/ioctl.c:739  __invoke_syscall arch/arm64/kernel/syscall.c:36 [inline]  invoke_syscall arch/arm64/kernel/syscall.c:48 [inline]  el0_svc_common arch/arm64/kernel/syscall.c:158 [inline]  do_el0_svc+0x120/0x290 arch/arm64/kernel/syscall.c:220  el0_svc+0x1c/0x28 arch/arm64/kernel/entry-common.c:367  el0_sync_handler+0x98/0x170 arch/arm64/kernel/entry-common.c:383  el0_sync+0x140/0x180 arch/arm64/kernel/entry.S:670  Allocated by task 4269:  stack_trace_save+0x80/0xb8 kernel/stacktrace.c:121  kasan_save_stack mm/kasan/common.c:48 [inline]  kasan_set_track mm/kasan/common.c:56 [inline]  __kasan_kmalloc+0xdc/0x120 mm/kasan/common.c:461  kasan_kmalloc+0xc/0x14 mm/kasan/common.c:475  kmem_cache_alloc_trace include/linux/slab.h:450 [inline]  kmalloc include/linux/slab.h:552 [inline]  kzalloc include/linux/slab.h:664 [inline]  kvm_vm_ioctl_register_coalesced_mmio+0x78/0x1cc arch/arm64/kvm/../../../virt/kvm/coalesced_mmio.c:146  kvm_vm_ioctl+0x7e8/0x14c4 arch/arm64/kvm/../../../virt/kvm/kvm_main.c:3746  vfs_ioctl fs/ioctl.c:48 [inline]  __do_sys_ioctl fs/ioctl.c:753 [inline]  __se_sys_ioctl fs/ioctl.c:739 [inline]  __arm64_sys_ioctl+0xf88/0x131c fs/ioctl.c:739  __invoke_syscall arch/arm64/kernel/syscall.c:36 [inline]  invoke_syscall arch/arm64/kernel/syscall.c:48 [inline]  el0_svc_common arch/arm64/kernel/syscall.c:158 [inline]  do_el0_svc+0x120/0x290 arch/arm64/kernel/syscall.c:220  el0_svc+0x1c/0x28 arch/arm64/kernel/entry-common.c:367  el0_sync_handler+0x98/0x170 arch/arm64/kernel/entry-common.c:383  el0_sync+0x140/0x180 arch/arm64/kernel/entry.S:670  Freed by task 4269:  stack_trace_save+0x80/0xb8 kernel/stacktrace.c:121  kasan_save_stack mm/kasan/common.c:48 [inline]  kasan_set_track+0x38/0x6c mm/kasan/common.c:56  kasan_set_free_info+0x20/0x40 mm/kasan/generic.c:355  __kasan_slab_free+0x124/0x150 mm/kasan/common.c:422  kasan_slab_free+0x10/0x1c mm/kasan/common.c:431  slab_free_hook mm/slub.c:1544 [inline]  slab_free_freelist_hook mm/slub.c:1577 [inline]  slab_free mm/slub.c:3142 [inline]  kfree+0x104/0x38c mm/slub.c:4124  coalesced_mmio_destructor+0x94/0xa4 arch/arm64/kvm/../../../virt/kvm/coalesced_mmio.c:102  kvm_iodevice_destructor include/kvm/iodev.h:61 [inline]  kvm_io_bus_unregister_dev+0x248/0x280 arch/arm64/kvm/../../../virt/kvm/kvm_main.c:4374  kvm_vm_ioctl_unregister_coalesced_mmio+0x158/0x1ec arch/arm64/kvm/../../../virt/kvm/coalesced_mmio.c:186  kvm_vm_ioctl+0xe30/0x14c4 arch/arm64/kvm/../../../virt/kvm/kvm_main.c:3755  vfs_ioctl fs/ioctl.c:48 [inline]  __do_sys_ioctl fs/ioctl.c:753 [inline]  __se_sys_ioctl fs/ioctl.c:739 [inline]  __arm64_sys_ioctl+0xf88/0x131c fs/ioctl.c:739  __invoke_syscall arch/arm64/kernel/syscall.c:36 [inline]  invoke_syscall arch/arm64/kernel/sys ---truncated---",null,[],[],[],[14],{"_key":15},"CVE-2021-47341",[],[],[],"2024-05-21T15:15:20.850Z","2026-04-28T20:23:25.557184Z",{"cisa_kev":22,"cisa_ransomware":22,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[24],{"url":25,"sources":26,"tags":28},"https://security-tracker.debian.org/tracker/CVE-2021-47341",[27],"osv_debian",[29],"Advisory",[],[],[33],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":34,"cvss_v4_0":9},{"baseScore":35,"baseSeverity":9,"vectorString":36,"impactScore":37,"exploitabilityScore":38},7.8,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",9.8,4.6,[40],{"ecosystem":41,"name":42,"vendor":43,"product":42,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":42,"source":9,"versions":45},"Debian","linux","debian","deb",[46,52,55,56],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":50,"version_end_type":51,"fixed_in":9},"lt5_10_70_1",true,"ecosystem","5.10.70-1","excluding",{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9},"lt5_14_6_1","5.14.6-1",{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9},{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9}]