cve-2021-46915
Vulnerability from cvelistv5
Published
2024-02-27 06:53
Modified
2024-11-04 11:55
Severity ?
Summary
netfilter: nft_limit: avoid possible divide error in nft_limit_init
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/01fb1626b620cb37a65ad08e0f626489e8f042efPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1bb3ee4259936cc3b2d80a4a480bbb4868575071Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9065ccb9ec92c5120e7e97958397ebdb454f23d6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b895bdf5d643b6feb7c60856326dd4feb6981560Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dc1732baa9da5b68621586bf8636ebbc27dc62d2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fadd3c4afdf3d4c21f4d138502f8b76334987e26Patch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_limit: avoid possible divide error in nft_limit_init\n\ndiv_u64() divides u64 by u32.\n\nnft_limit_init() wants to divide u64 by u64, use the appropriate\nmath function (div64_u64)\n\ndivide error: 0000 [#1] PREEMPT SMP KASAN\nCPU: 1 PID: 8390 Comm: syz-executor188 Not tainted 5.12.0-rc4-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nRIP: 0010:div_u64_rem include/linux/math64.h:28 [inline]\nRIP: 0010:div_u64 include/linux/math64.h:127 [inline]\nRIP: 0010:nft_limit_init+0x2a2/0x5e0 net/netfilter/nft_limit.c:85\nCode: ef 4c 01 eb 41 0f 92 c7 48 89 de e8 38 a5 22 fa 4d 85 ff 0f 85 97 02 00 00 e8 ea 9e 22 fa 4c 0f af f3 45 89 ed 31 d2 4c 89 f0 \u003c49\u003e f7 f5 49 89 c6 e8 d3 9e 22 fa 48 8d 7d 48 48 b8 00 00 00 00 00\nRSP: 0018:ffffc90009447198 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000200000000000 RCX: 0000000000000000\nRDX: 0000000000000000 RSI: ffffffff875152e6 RDI: 0000000000000003\nRBP: ffff888020f80908 R08: 0000200000000000 R09: 0000000000000000\nR10: ffffffff875152d8 R11: 0000000000000000 R12: ffffc90009447270\nR13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\nFS:  000000000097a300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000200001c4 CR3: 0000000026a52000 CR4: 00000000001506e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n nf_tables_newexpr net/netfilter/nf_tables_api.c:2675 [inline]\n nft_expr_init+0x145/0x2d0 net/netfilter/nf_tables_api.c:2713\n nft_set_elem_expr_alloc+0x27/0x280 net/netfilter/nf_tables_api.c:5160\n nf_tables_newset+0x1997/0x3150 net/netfilter/nf_tables_api.c:4321\n nfnetlink_rcv_batch+0x85a/0x21b0 net/netfilter/nfnetlink.c:456\n nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:580 [inline]\n nfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:598\n netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]\n netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338\n netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927\n sock_sendmsg_nosec net/socket.c:654 [inline]\n sock_sendmsg+0xcf/0x120 net/socket.c:674\n ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350\n ___sys_sendmsg+0xf3/0x170 net/socket.c:2404\n __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433\n do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46\n entry_SYSCALL_64_after_hwframe+0x44/0xae"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2021-46915",
    "datePublished": "2024-02-27T06:53:54.148Z",
    "dateReserved": "2024-02-25T13:45:52.718Z",
    "dateUpdated": "2024-11-04T11:55:48.053Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-46915\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-27T07:15:08.083\",\"lastModified\":\"2024-04-10T13:55:34.140\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nft_limit: avoid possible divide error in nft_limit_init\\n\\ndiv_u64() divides u64 by u32.\\n\\nnft_limit_init() wants to divide u64 by u64, use the appropriate\\nmath function (div64_u64)\\n\\ndivide error: 0000 [#1] PREEMPT SMP KASAN\\nCPU: 1 PID: 8390 Comm: syz-executor188 Not tainted 5.12.0-rc4-syzkaller #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\\nRIP: 0010:div_u64_rem include/linux/math64.h:28 [inline]\\nRIP: 0010:div_u64 include/linux/math64.h:127 [inline]\\nRIP: 0010:nft_limit_init+0x2a2/0x5e0 net/netfilter/nft_limit.c:85\\nCode: ef 4c 01 eb 41 0f 92 c7 48 89 de e8 38 a5 22 fa 4d 85 ff 0f 85 97 02 00 00 e8 ea 9e 22 fa 4c 0f af f3 45 89 ed 31 d2 4c 89 f0 \u003c49\u003e f7 f5 49 89 c6 e8 d3 9e 22 fa 48 8d 7d 48 48 b8 00 00 00 00 00\\nRSP: 0018:ffffc90009447198 EFLAGS: 00010246\\nRAX: 0000000000000000 RBX: 0000200000000000 RCX: 0000000000000000\\nRDX: 0000000000000000 RSI: ffffffff875152e6 RDI: 0000000000000003\\nRBP: ffff888020f80908 R08: 0000200000000000 R09: 0000000000000000\\nR10: ffffffff875152d8 R11: 0000000000000000 R12: ffffc90009447270\\nR13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\\nFS:  000000000097a300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00000000200001c4 CR3: 0000000026a52000 CR4: 00000000001506e0\\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\nCall Trace:\\n nf_tables_newexpr net/netfilter/nf_tables_api.c:2675 [inline]\\n nft_expr_init+0x145/0x2d0 net/netfilter/nf_tables_api.c:2713\\n nft_set_elem_expr_alloc+0x27/0x280 net/netfilter/nf_tables_api.c:5160\\n nf_tables_newset+0x1997/0x3150 net/netfilter/nf_tables_api.c:4321\\n nfnetlink_rcv_batch+0x85a/0x21b0 net/netfilter/nfnetlink.c:456\\n nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:580 [inline]\\n nfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:598\\n netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]\\n netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338\\n netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927\\n sock_sendmsg_nosec net/socket.c:654 [inline]\\n sock_sendmsg+0xcf/0x120 net/socket.c:674\\n ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350\\n ___sys_sendmsg+0xf3/0x170 net/socket.c:2404\\n __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433\\n do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46\\n entry_SYSCALL_64_after_hwframe+0x44/0xae\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: netfilter: nft_limit: evita posible error de divisi\u00f3n en nft_limit_init div_u64() divide u64 entre u32. nft_limit_init() quiere dividir u64 entre u64, use la funci\u00f3n matem\u00e1tica apropiada (div64_u64) error de divisi\u00f3n: 0000 [#1] CPU PREEMPT SMP KASAN: 1 PID: 8390 Comm: syz-executor188 Not tainted 5.12.0-rc4-syzkaller # 0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:div_u64_rem include/linux/math64.h:28 [en l\u00ednea] RIP: 0010:div_u64 include/linux/math64.h: 127 [en l\u00ednea] RIP: 0010:nft_limit_init+0x2a2/0x5e0 net/netfilter/nft_limit.c:85 C\u00f3digo: ef 4c 01 eb 41 0f 92 c7 48 89 de e8 38 a5 22 fa 4d 85 ff 0f 85 97 02 00 00 e8 ea 9e 22 fa 4c 0f af f3 45 89 ed 31 d2 4c 89 f0 \u0026lt;49\u0026gt; f7 f5 49 89 c6 e8 d3 9e 22 fa 48 8d 7d 48 48 b8 00 00 00 00 00 RSP: 0018:ffffc90009447198 EF LAGS: 00010246 RAX: 0000000000000000 RBX: 0000200000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff875152e6 RDI: 0000000000000003 RBP: ffff888 020f80908 R08: 0000200000000000 R09: 0000000000000000 R10: ffffffff875152d8 R11: 0000000000000000 R12: ffffc90009447270 R13: 000000000000 0000 R14: 0000000000000000 R15: 0000000000000000 FS: 000000000097a300(0000) GS :ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200001c4 CR3: 0000000026a52000 CR 4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000000000000 DR6: 00000000ffe0ff0 DR7: 00000 00000000400 Rastreo de llamadas: nf_tables_newexpr net/netfilter/nf_tables_api.c:2675 [en l\u00ednea] nft_expr_init+0x145/0x2d0 net/netfilter/nf_tables_api.c:2713 nft_set_elem_expr_alloc+0x27/0x280 net/netfilter/nf_tables_api.c:5160 nf_tables_newset+0x1997/0x3150 net/netfilter/ nf_tables_api.c:4321 nfnetlink_rcv_batch+0x85a/0x21b0 net/netfilter/nfnetlink.c:456 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:580 [en l\u00ednea] nfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:59 8 netlink_unicast_kernel red/netlink /af_netlink.c:1312 [en l\u00ednea] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [en l\u00ednea] sock_sendmsg+ 0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433 do_sys llamada_64+0x2d/ 0x70 arch/x86/entry/common.c:46 entrada_SYSCALL_64_after_hwframe+0x44/0xae\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-369\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.13.0\",\"versionEndExcluding\":\"4.14.232\",\"matchCriteriaId\":\"B57FF6BE-DF15-4360-A821-3EE92F96F189\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15.0\",\"versionEndExcluding\":\"4.19.189\",\"matchCriteriaId\":\"8EEE5714-B0F5-40FB-9A6E-4BF3F2A51B2E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20.0\",\"versionEndExcluding\":\"5.4.114\",\"matchCriteriaId\":\"74CFBFBB-99A6-47E6-A16A-2A2E9F2A5A0D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5.0\",\"versionEndExcluding\":\"5.10.32\",\"matchCriteriaId\":\"4EF3FA8C-FC42-4ADB-A80D-83E76B33E34F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11.0\",\"versionEndExcluding\":\"5.11.16\",\"matchCriteriaId\":\"3C5242B9-B5BD-4578-AD66-69DF59D54A14\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/01fb1626b620cb37a65ad08e0f626489e8f042ef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1bb3ee4259936cc3b2d80a4a480bbb4868575071\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9065ccb9ec92c5120e7e97958397ebdb454f23d6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b895bdf5d643b6feb7c60856326dd4feb6981560\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dc1732baa9da5b68621586bf8636ebbc27dc62d2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fadd3c4afdf3d4c21f4d138502f8b76334987e26\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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