[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-CVE-2021-47606":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T08:53:30.047Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":20,"aliases":21,"duplicate_of":9,"upstream":22,"downstream":23,"duplicates":48,"related":49,"reserved_at":9,"published_at":56,"modified_at":57,"state":58,"summary":59,"references_raw":68,"kevs":103,"epss":104,"epss_history":107,"metrics":362,"affected":368},"CVE-2021-47606","In the Linux kernel, the following vulnerability has been resolved:\n\nnet: netlink: af_netlink: Prevent empty skb by adding a check on len.\n\nAdding a check on len parameter to avoid empty skb. This prevents a\ndivision error in netem_enqueue function which is caused when skb->len=0\nand skb->data_len=0 in the randomized corruption step as shown below.\n\nskb->data[prandom_u32() % skb_headlen(skb)] ^= 1\u003C\u003C(prandom_u32() % 8);\n\nCrash Report:\n[  343.170349] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family\n0 port 6081 - 0\n[  343.216110] netem: version 1.3\n[  343.235841] divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI\n[  343.236680] CPU: 3 PID: 4288 Comm: reproducer Not tainted 5.16.0-rc1+\n[  343.237569] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),\nBIOS 1.11.0-2.el7 04/01/2014\n[  343.238707] RIP: 0010:netem_enqueue+0x1590/0x33c0 [sch_netem]\n[  343.239499] Code: 89 85 58 ff ff ff e8 5f 5d e9 d3 48 8b b5 48 ff ff\nff 8b 8d 50 ff ff ff 8b 85 58 ff ff ff 48 8b bd 70 ff ff ff 31 d2 2b 4f\n74 \u003Cf7> f1 48 b8 00 00 00 00 00 fc ff df 49 01 d5 4c 89 e9 48 c1 e9 03\n[  343.241883] RSP: 0018:ffff88800bcd7368 EFLAGS: 00010246\n[  343.242589] RAX: 00000000ba7c0a9c RBX: 0000000000000001 RCX:\n0000000000000000\n[  343.243542] RDX: 0000000000000000 RSI: ffff88800f8edb10 RDI:\nffff88800f8eda40\n[  343.244474] RBP: ffff88800bcd7458 R08: 0000000000000000 R09:\nffffffff94fb8445\n[  343.245403] R10: ffffffff94fb8336 R11: ffffffff94fb8445 R12:\n0000000000000000\n[  343.246355] R13: ffff88800a5a7000 R14: ffff88800a5b5800 R15:\n0000000000000020\n[  343.247291] FS:  00007fdde2bd7700(0000) GS:ffff888109780000(0000)\nknlGS:0000000000000000\n[  343.248350] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  343.249120] CR2: 00000000200000c0 CR3: 000000000ef4c000 CR4:\n00000000000006e0\n[  343.250076] Call Trace:\n[  343.250423]  \u003CTASK>\n[  343.250713]  ? memcpy+0x4d/0x60\n[  343.251162]  ? netem_init+0xa0/0xa0 [sch_netem]\n[  343.251795]  ? __sanitizer_cov_trace_pc+0x21/0x60\n[  343.252443]  netem_enqueue+0xe28/0x33c0 [sch_netem]\n[  343.253102]  ? stack_trace_save+0x87/0xb0\n[  343.253655]  ? filter_irq_stacks+0xb0/0xb0\n[  343.254220]  ? netem_init+0xa0/0xa0 [sch_netem]\n[  343.254837]  ? __kasan_check_write+0x14/0x20\n[  343.255418]  ? _raw_spin_lock+0x88/0xd6\n[  343.255953]  dev_qdisc_enqueue+0x50/0x180\n[  343.256508]  __dev_queue_xmit+0x1a7e/0x3090\n[  343.257083]  ? netdev_core_pick_tx+0x300/0x300\n[  343.257690]  ? check_kcov_mode+0x10/0x40\n[  343.258219]  ? _raw_spin_unlock_irqrestore+0x29/0x40\n[  343.258899]  ? __kasan_init_slab_obj+0x24/0x30\n[  343.259529]  ? setup_object.isra.71+0x23/0x90\n[  343.260121]  ? new_slab+0x26e/0x4b0\n[  343.260609]  ? kasan_poison+0x3a/0x50\n[  343.261118]  ? kasan_unpoison+0x28/0x50\n[  343.261637]  ? __kasan_slab_alloc+0x71/0x90\n[  343.262214]  ? memcpy+0x4d/0x60\n[  343.262674]  ? write_comp_data+0x2f/0x90\n[  343.263209]  ? __kasan_check_write+0x14/0x20\n[  343.263802]  ? __skb_clone+0x5d6/0x840\n[  343.264329]  ? __sanitizer_cov_trace_pc+0x21/0x60\n[  343.264958]  dev_queue_xmit+0x1c/0x20\n[  343.265470]  netlink_deliver_tap+0x652/0x9c0\n[  343.266067]  netlink_unicast+0x5a0/0x7f0\n[  343.266608]  ? netlink_attachskb+0x860/0x860\n[  343.267183]  ? __sanitizer_cov_trace_pc+0x21/0x60\n[  343.267820]  ? write_comp_data+0x2f/0x90\n[  343.268367]  netlink_sendmsg+0x922/0xe80\n[  343.268899]  ? netlink_unicast+0x7f0/0x7f0\n[  343.269472]  ? __sanitizer_cov_trace_pc+0x21/0x60\n[  343.270099]  ? write_comp_data+0x2f/0x90\n[  343.270644]  ? netlink_unicast+0x7f0/0x7f0\n[  343.271210]  sock_sendmsg+0x155/0x190\n[  343.271721]  ____sys_sendmsg+0x75f/0x8f0\n[  343.272262]  ? kernel_sendmsg+0x60/0x60\n[  343.272788]  ? write_comp_data+0x2f/0x90\n[  343.273332]  ? write_comp_data+0x2f/0x90\n[  343.273869]  ___sys_sendmsg+0x10f/0x190\n[  343.274405]  ? sendmsg_copy_msghdr+0x80/0x80\n[  343.274984]  ? slab_post_alloc_hook+0x70/0x230\n[  343.275597]  ? futex_wait_setup+0x240/0x240\n[  343.276175]  ? security_file_alloc+0x3e/0x170\n[  343.276779]  ? write_comp_d\n---truncated---",null,[11],{"_key":12,"id":12,"name":13,"description":14,"type":15,"status":16,"abstraction":17,"likelihood_of_exploit":18,"capec":19},"CWE-369","Divide By Zero","The product divides a value by zero.","weakness","Draft","Base","Medium",[],[],[],[],[24,26,28,30,32,34,36,38,40,42,44,46],{"_key":25},"SUSE-SU-2024:2894-1",{"_key":27},"SUSE-SU-2024:2892-1",{"_key":29},"SUSE-SU-2024:2901-1",{"_key":31},"SUSE-SU-2024:2940-1",{"_key":33},"SUSE-SU-2024:2939-1",{"_key":35},"SUSE-SU-2024:2947-1",{"_key":37},"DEBIAN-CVE-2021-47606",{"_key":39},"RHSA-2024:5363",{"_key":41},"UBUNTU-CVE-2021-47606",{"_key":43},"USN-7332-1",{"_key":45},"USN-7332-2",{"_key":47},"USN-7332-3",[],[50,51,52,53,54,55],{"_key":25},{"_key":27},{"_key":29},{"_key":31},{"_key":33},{"_key":35},"2024-06-19T14:54:05.025Z","2026-05-11T13:57:47.811Z","Modified",{"cisa_kev":60,"cisa_ransomware":60,"cisa_vendor":9,"epss_severity":61,"epss_score":62,"severity":63,"severity_score":64,"severity_version":65,"severity_source":66,"severity_vector":67,"severity_status":58},false,"low",0.00021,"medium",5.5,"v3.1","nvd","CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",[69,75,79,83,87,91,95,99],{"url":70,"sources":71,"tags":73},"https://git.kernel.org/stable/c/c54a60c8fbaa774f828e26df79f66229a8a0e010",[72,66],"cve.org",[74],"Patch",{"url":76,"sources":77,"tags":78},"https://git.kernel.org/stable/c/40cf2e058832d9cfaae98dfd77334926275598b6",[72,66],[74],{"url":80,"sources":81,"tags":82},"https://git.kernel.org/stable/c/54e785f7d5c197bc06dbb8053700df7e2a093ced",[72,66],[74],{"url":84,"sources":85,"tags":86},"https://git.kernel.org/stable/c/ff3f517bf7138e01a17369042908a3f345c0ee41",[72,66],[74],{"url":88,"sources":89,"tags":90},"https://git.kernel.org/stable/c/c0315e93552e0d840e9edc6abd71c7db82ec8f51",[72,66],[74],{"url":92,"sources":93,"tags":94},"https://git.kernel.org/stable/c/dadce61247c6230489527cc5e343b6002d1114c5",[72,66],[74],{"url":96,"sources":97,"tags":98},"https://git.kernel.org/stable/c/4c986072a8c9249b9398c7a18f216dc26a9f0e35",[72,66],[74],{"url":100,"sources":101,"tags":102},"https://git.kernel.org/stable/c/f123cffdd8fe8ea6c7fded4b88516a42798797d0",[72,66],[74],[],{"date":105,"score":62,"percentile":106},"2026-06-03",0.06158,[108,112,115,118,121,124,127,130,133,136,138,141,144,146,149,153,156,159,162,165,168,171,174,177,180,183,186,188,191,194,197,200,203,206,208,211,213,215,218,221,224,227,229,231,235,238,241,243,246,249,252,254,257,260,262,264,266,269,272,275,278,281,284,286,289,291,294,297,300,303,306,309,312,315,318,321,324,327,330,333,336,339,341,344,347,349,351,353,356,359],{"date":109,"score":110,"percentile":111},"2025-11-04",0.00011,0.01031,{"date":113,"score":110,"percentile":114},"2025-11-05",0.01044,{"date":116,"score":110,"percentile":117},"2025-11-06",0.01055,{"date":119,"score":110,"percentile":120},"2025-11-07",0.01058,{"date":122,"score":110,"percentile":123},"2025-11-08",0.0106,{"date":125,"score":110,"percentile":126},"2025-11-09",0.01059,{"date":128,"score":110,"percentile":129},"2025-11-10",0.01049,{"date":131,"score":110,"percentile":132},"2025-11-11",0.01052,{"date":134,"score":110,"percentile":135},"2025-11-12",0.0105,{"date":137,"score":110,"percentile":132},"2025-11-13",{"date":139,"score":110,"percentile":140},"2025-11-14",0.01065,{"date":142,"score":110,"percentile":143},"2025-11-15",0.01081,{"date":145,"score":110,"percentile":143},"2025-11-16",{"date":147,"score":110,"percentile":148},"2025-11-17",0.01076,{"date":150,"score":151,"percentile":152},"2025-11-18",0.00071,0.17788,{"date":154,"score":151,"percentile":155},"2025-11-19",0.17811,{"date":157,"score":151,"percentile":158},"2025-11-20",0.17785,{"date":160,"score":110,"percentile":161},"2025-11-21",0.01126,{"date":163,"score":110,"percentile":164},"2025-11-22",0.01123,{"date":166,"score":110,"percentile":167},"2025-11-23",0.01113,{"date":169,"score":110,"percentile":170},"2025-11-24",0.01109,{"date":172,"score":110,"percentile":173},"2025-11-25",0.01102,{"date":175,"score":110,"percentile":176},"2025-11-26",0.01037,{"date":178,"score":110,"percentile":179},"2025-11-27",0.01035,{"date":181,"score":110,"percentile":182},"2025-11-28",0.01041,{"date":184,"score":110,"percentile":185},"2025-11-29",0.01073,{"date":187,"score":110,"percentile":143},"2025-11-30",{"date":189,"score":110,"percentile":190},"2025-12-01",0.01112,{"date":192,"score":110,"percentile":193},"2025-12-02",0.01105,{"date":195,"score":110,"percentile":196},"2025-12-03",0.0111,{"date":198,"score":110,"percentile":199},"2025-12-04",0.01083,{"date":201,"score":110,"percentile":202},"2025-12-05",0.01095,{"date":204,"score":110,"percentile":205},"2025-12-06",0.01096,{"date":207,"score":110,"percentile":205},"2025-12-07",{"date":209,"score":110,"percentile":210},"2025-12-08",0.01099,{"date":212,"score":110,"percentile":167},"2025-12-09",{"date":214,"score":110,"percentile":161},"2025-12-10",{"date":216,"score":110,"percentile":217},"2025-12-11",0.01117,{"date":219,"score":110,"percentile":220},"2025-12-12",0.01114,{"date":222,"score":110,"percentile":223},"2025-12-13",0.01101,{"date":225,"score":110,"percentile":226},"2025-12-14",0.01098,{"date":228,"score":110,"percentile":202},"2025-12-15",{"date":230,"sc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