{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-46915","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-25T13:45:52.718Z","datePublished":"2024-02-27T06:53:54.148Z","dateUpdated":"2025-05-04T07:00:16.535Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:00:16.535Z"},"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 <49> 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"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nft_limit.c"],"versions":[{"version":"c26844eda9d4fdbd266660e3b3de2d0270e3a1ed","lessThan":"9065ccb9ec92c5120e7e97958397ebdb454f23d6","status":"affected","versionType":"git"},{"version":"c26844eda9d4fdbd266660e3b3de2d0270e3a1ed","lessThan":"fadd3c4afdf3d4c21f4d138502f8b76334987e26","status":"affected","versionType":"git"},{"version":"c26844eda9d4fdbd266660e3b3de2d0270e3a1ed","lessThan":"01fb1626b620cb37a65ad08e0f626489e8f042ef","status":"affected","versionType":"git"},{"version":"c26844eda9d4fdbd266660e3b3de2d0270e3a1ed","lessThan":"dc1732baa9da5b68621586bf8636ebbc27dc62d2","status":"affected","versionType":"git"},{"version":"c26844eda9d4fdbd266660e3b3de2d0270e3a1ed","lessThan":"1bb3ee4259936cc3b2d80a4a480bbb4868575071","status":"affected","versionType":"git"},{"version":"c26844eda9d4fdbd266660e3b3de2d0270e3a1ed","lessThan":"b895bdf5d643b6feb7c60856326dd4feb6981560","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nft_limit.c"],"versions":[{"version":"4.13","status":"affected"},{"version":"0","lessThan":"4.13","status":"unaffected","versionType":"semver"},{"version":"4.14.232","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.189","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.114","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.32","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.11.16","lessThanOrEqual":"5.11.*","status":"unaffected","versionType":"semver"},{"version":"5.12","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"4.14.232"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"4.19.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"5.4.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"5.10.32"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"5.11.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"5.12"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/9065ccb9ec92c5120e7e97958397ebdb454f23d6"},{"url":"https://git.kernel.org/stable/c/fadd3c4afdf3d4c21f4d138502f8b76334987e26"},{"url":"https://git.kernel.org/stable/c/01fb1626b620cb37a65ad08e0f626489e8f042ef"},{"url":"https://git.kernel.org/stable/c/dc1732baa9da5b68621586bf8636ebbc27dc62d2"},{"url":"https://git.kernel.org/stable/c/1bb3ee4259936cc3b2d80a4a480bbb4868575071"},{"url":"https://git.kernel.org/stable/c/b895bdf5d643b6feb7c60856326dd4feb6981560"}],"title":"netfilter: nft_limit: avoid possible divide error in nft_limit_init","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-46915","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-02-27T20:05:20.730177Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-07-05T17:22:02.540Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:17:42.988Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/9065ccb9ec92c5120e7e97958397ebdb454f23d6","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/fadd3c4afdf3d4c21f4d138502f8b76334987e26","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/01fb1626b620cb37a65ad08e0f626489e8f042ef","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/dc1732baa9da5b68621586bf8636ebbc27dc62d2","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/1bb3ee4259936cc3b2d80a4a480bbb4868575071","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/b895bdf5d643b6feb7c60856326dd4feb6981560","tags":["x_transferred"]}]}]}}