cve-2021-47588
Vulnerability from cvelistv5
Published
2024-06-19 14:53
Modified
2024-11-04 12:08
Severity ?
Summary
sit: do not call ipip6_dev_free() from sit_init_net()
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/44a6c846bc3a7efe7d394bab8b2ae3b7f580e190
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4e1797914d8f223726ff6ae5ece4f97d73f21bab
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6f46c59e60b64620d5d386c8ee2eaa11ebe3b595
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad0ed314d6167b212939e3839428ba0c8bb16adb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e28587cc491ef0f3c51258fdc87fbc386b1d4c59
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e56b65c1e74d7f706d74b51baba15187be2fb4b5
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/44a6c846bc3a7efe7d394bab8b2ae3b7f580e190
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4e1797914d8f223726ff6ae5ece4f97d73f21bab
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6f46c59e60b64620d5d386c8ee2eaa11ebe3b595
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ad0ed314d6167b212939e3839428ba0c8bb16adb
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e28587cc491ef0f3c51258fdc87fbc386b1d4c59
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e56b65c1e74d7f706d74b51baba15187be2fb4b5
Impacted products
Vendor Product Version
Linux Linux Version: 4.12
Show details on NVD website

To clipboard 

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsit: do not call ipip6_dev_free() from sit_init_net()\n\nipip6_dev_free is sit dev-\u003epriv_destructor, already called\nby register_netdevice() if something goes wrong.\n\nAlternative would be to make ipip6_dev_free() robust against\nmultiple invocations, but other drivers do not implement this\nstrategy.\n\nsyzbot reported:\n\ndst_release underflow\nWARNING: CPU: 0 PID: 5059 at net/core/dst.c:173 dst_release+0xd8/0xe0 net/core/dst.c:173\nModules linked in:\nCPU: 1 PID: 5059 Comm: syz-executor.4 Not tainted 5.16.0-rc5-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nRIP: 0010:dst_release+0xd8/0xe0 net/core/dst.c:173\nCode: 4c 89 f2 89 d9 31 c0 5b 41 5e 5d e9 da d5 44 f9 e8 1d 90 5f f9 c6 05 87 48 c6 05 01 48 c7 c7 80 44 99 8b 31 c0 e8 e8 67 29 f9 \u003c0f\u003e 0b eb 85 0f 1f 40 00 53 48 89 fb e8 f7 8f 5f f9 48 83 c3 a8 48\nRSP: 0018:ffffc9000aa5faa0 EFLAGS: 00010246\nRAX: d6894a925dd15a00 RBX: 00000000ffffffff RCX: 0000000000040000\nRDX: ffffc90005e19000 RSI: 000000000003ffff RDI: 0000000000040000\nRBP: 0000000000000000 R08: ffffffff816a1f42 R09: ffffed1017344f2c\nR10: ffffed1017344f2c R11: 0000000000000000 R12: 0000607f462b1358\nR13: 1ffffffff1bfd305 R14: ffffe8ffffcb1358 R15: dffffc0000000000\nFS:  00007f66c71a2700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f88aaed5058 CR3: 0000000023e0f000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n dst_cache_destroy+0x107/0x1e0 net/core/dst_cache.c:160\n ipip6_dev_free net/ipv6/sit.c:1414 [inline]\n sit_init_net+0x229/0x550 net/ipv6/sit.c:1936\n ops_init+0x313/0x430 net/core/net_namespace.c:140\n setup_net+0x35b/0x9d0 net/core/net_namespace.c:326\n copy_net_ns+0x359/0x5c0 net/core/net_namespace.c:470\n create_new_namespaces+0x4ce/0xa00 kernel/nsproxy.c:110\n unshare_nsproxy_namespaces+0x11e/0x180 kernel/nsproxy.c:226\n ksys_unshare+0x57d/0xb50 kernel/fork.c:3075\n __do_sys_unshare kernel/fork.c:3146 [inline]\n __se_sys_unshare kernel/fork.c:3144 [inline]\n __x64_sys_unshare+0x34/0x40 kernel/fork.c:3144\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7f66c882ce99\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f66c71a2168 EFLAGS: 00000246 ORIG_RAX: 0000000000000110\nRAX: ffffffffffffffda RBX: 00007f66c893ff60 RCX: 00007f66c882ce99\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000048040200\nRBP: 00007f66c8886ff1 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007fff6634832f R14: 00007f66c71a2300 R15: 0000000000022000\n \u003c/TASK\u003e"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47588",
    "datePublished": "2024-06-19T14:53:52.909Z",
    "dateReserved": "2024-05-24T15:11:00.732Z",
    "dateUpdated": "2024-11-04T12:08:42.494Z",
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  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47588\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-19T15:15:53.383\",\"lastModified\":\"2024-11-21T06:36:36.800\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsit: do not call ipip6_dev_free() from sit_init_net()\\n\\nipip6_dev_free is sit dev-\u003epriv_destructor, already called\\nby register_netdevice() if something goes wrong.\\n\\nAlternative would be to make ipip6_dev_free() robust against\\nmultiple invocations, but other drivers do not implement this\\nstrategy.\\n\\nsyzbot reported:\\n\\ndst_release underflow\\nWARNING: CPU: 0 PID: 5059 at net/core/dst.c:173 dst_release+0xd8/0xe0 net/core/dst.c:173\\nModules linked in:\\nCPU: 1 PID: 5059 Comm: syz-executor.4 Not tainted 5.16.0-rc5-syzkaller #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\\nRIP: 0010:dst_release+0xd8/0xe0 net/core/dst.c:173\\nCode: 4c 89 f2 89 d9 31 c0 5b 41 5e 5d e9 da d5 44 f9 e8 1d 90 5f f9 c6 05 87 48 c6 05 01 48 c7 c7 80 44 99 8b 31 c0 e8 e8 67 29 f9 \u003c0f\u003e 0b eb 85 0f 1f 40 00 53 48 89 fb e8 f7 8f 5f f9 48 83 c3 a8 48\\nRSP: 0018:ffffc9000aa5faa0 EFLAGS: 00010246\\nRAX: d6894a925dd15a00 RBX: 00000000ffffffff RCX: 0000000000040000\\nRDX: ffffc90005e19000 RSI: 000000000003ffff RDI: 0000000000040000\\nRBP: 0000000000000000 R08: ffffffff816a1f42 R09: ffffed1017344f2c\\nR10: ffffed1017344f2c R11: 0000000000000000 R12: 0000607f462b1358\\nR13: 1ffffffff1bfd305 R14: ffffe8ffffcb1358 R15: dffffc0000000000\\nFS:  00007f66c71a2700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00007f88aaed5058 CR3: 0000000023e0f000 CR4: 00000000003506f0\\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\nCall Trace:\\n \u003cTASK\u003e\\n dst_cache_destroy+0x107/0x1e0 net/core/dst_cache.c:160\\n ipip6_dev_free net/ipv6/sit.c:1414 [inline]\\n sit_init_net+0x229/0x550 net/ipv6/sit.c:1936\\n ops_init+0x313/0x430 net/core/net_namespace.c:140\\n setup_net+0x35b/0x9d0 net/core/net_namespace.c:326\\n copy_net_ns+0x359/0x5c0 net/core/net_namespace.c:470\\n create_new_namespaces+0x4ce/0xa00 kernel/nsproxy.c:110\\n unshare_nsproxy_namespaces+0x11e/0x180 kernel/nsproxy.c:226\\n ksys_unshare+0x57d/0xb50 kernel/fork.c:3075\\n __do_sys_unshare kernel/fork.c:3146 [inline]\\n __se_sys_unshare kernel/fork.c:3144 [inline]\\n __x64_sys_unshare+0x34/0x40 kernel/fork.c:3144\\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\\n do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80\\n entry_SYSCALL_64_after_hwframe+0x44/0xae\\nRIP: 0033:0x7f66c882ce99\\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f66c71a2168 EFLAGS: 00000246 ORIG_RAX: 0000000000000110\\nRAX: ffffffffffffffda RBX: 00007f66c893ff60 RCX: 00007f66c882ce99\\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000048040200\\nRBP: 00007f66c8886ff1 R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 00007fff6634832f R14: 00007f66c71a2300 R15: 0000000000022000\\n \u003c/TASK\u003e\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sit: no llame a ipip6_dev_free() desde sit_init_net() ipip6_dev_free es sit dev-\u0026gt;priv_destructor, ya llamado por Register_netdevice() si algo sale mal. La alternativa ser\u00eda hacer que ipip6_dev_free() sea robusto contra m\u00faltiples invocaciones, pero otros controladores no implementan esta estrategia. syzbot inform\u00f3: dst_release underflow ADVERTENCIA: CPU: 0 PID: 5059 en net/core/dst.c:173 dst_release+0xd8/0xe0 net/core/dst.c:173 M\u00f3dulos vinculados en: CPU: 1 PID: 5059 Comm: syz -executor.4 Not tainted 5.16.0-rc5-syzkaller #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:dst_release+0xd8/0xe0 net/core/dst.c :173 C\u00f3digo: 4c 89 f2 89 d9 31 c0 5b 41 5e 5d e9 da d5 44 f9 e8 1d 90 5f f9 c6 05 87 48 c6 05 01 48 c7 c7 80 44 99 8b 31 c0 e8 e8 67 29 f9 \u0026lt;0f\u0026gt; 0b eb 85 0f 1f 40 00 53 48 89 fb e8 f7 8f 5f f9 48 83 c3 a8 48 RSP: 0018:ffffc9000aa5faa0 EFLAGS: 00010246 RAX: d6894a925dd15a00 RBX: RCX: 0000000000040000 RDX: ffffc90005e19000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 0000000000000000 R08 : ffffffff816a1f42 R09: ffffed1017344f2c R10: ffffed1017344f2c R11: 0000000000000000 R12: 0000607f462b1358 R13: 1ffffffff1bfd305 R14: ffffe8ffffcb135 8 R15: dffffc0000000000 FS: 00007f66c71a2700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 50033 CR2: 00007f88aaed5058 CR3: 0000000023e0f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 00000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Seguimiento de llamadas:  dst_cache_destroy+0x107/0x1e0 net/core/dst_cache.c:160 ipip6_dev_free net/ ipv6/sit.c:1414 [en l\u00ednea] sit_init_net+0x229/0x550 net/ipv6/sit.c:1936 ops_init+0x313/0x430 net/core/net_namespace.c:140 setup_net+0x35b/0x9d0 net/core/net_namespace.c :326 copy_net_ns+0x359/0x5c0 net/core/net_namespace.c:470 create_new_namespaces+0x4ce/0xa00 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0x11e/0x180 kernel/nsproxy.c:226 ksys_unshare+0x57d/0xb50 .c :3075 __do_sys_unshare kernel/fork.c:3146 [en l\u00ednea] __se_sys_unshare kernel/fork.c:3144 [en l\u00ednea] __x64_sys_unshare+0x34/0x40 kernel/fork.c:3144 do_syscall_x64 arch/x86/entry/common.c:50 [en l\u00ednea ] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 Entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f66c882ce99 C\u00f3digo: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP:00 007f66c71a2168 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f66c893ff60 RCX: 00007f66c882ce99 RDX: 0000000000000000 RSI: 0000000000 000000 RDI: 0000000048040200 RBP: 00007f66c8886ff1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 00000000000 00246 R12: 0000000000000000 R13: 00007fff6634832f R14: 00007f66c71a2300 R15: 0000000000022000 \"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/44a6c846bc3a7efe7d394bab8b2ae3b7f580e190\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4e1797914d8f223726ff6ae5ece4f97d73f21bab\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6f46c59e60b64620d5d386c8ee2eaa11ebe3b595\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ad0ed314d6167b212939e3839428ba0c8bb16adb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e28587cc491ef0f3c51258fdc87fbc386b1d4c59\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e56b65c1e74d7f706d74b51baba15187be2fb4b5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/44a6c846bc3a7efe7d394bab8b2ae3b7f580e190\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/4e1797914d8f223726ff6ae5ece4f97d73f21bab\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/6f46c59e60b64620d5d386c8ee2eaa11ebe3b595\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/ad0ed314d6167b212939e3839428ba0c8bb16adb\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/e28587cc491ef0f3c51258fdc87fbc386b1d4c59\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/e56b65c1e74d7f706d74b51baba15187be2fb4b5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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