{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-46783", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-09-11T15:12:18.276Z", "datePublished": "2024-09-18T07:12:39.573Z", "dateUpdated": "2024-12-19T09:23:03.801Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T09:23:03.801Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp_bpf: fix return value of tcp_bpf_sendmsg()\n\nWhen we cork messages in psock->cork, the last message triggers the\nflushing will result in sending a sk_msg larger than the current\nmessage size. In this case, in tcp_bpf_send_verdict(), 'copied' becomes\nnegative at least in the following case:\n\n468 case __SK_DROP:\n469 default:\n470 sk_msg_free_partial(sk, msg, tosend);\n471 sk_msg_apply_bytes(psock, tosend);\n472 *copied -= (tosend + delta); // <==== HERE\n473 return -EACCES;\n\nTherefore, it could lead to the following BUG with a proper value of\n'copied' (thanks to syzbot). We should not use negative 'copied' as a\nreturn value here.\n\n ------------[ cut here ]------------\n kernel BUG at net/socket.c:733!\n Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP\n Modules linked in:\n CPU: 0 UID: 0 PID: 3265 Comm: syz-executor510 Not tainted 6.11.0-rc3-syzkaller-00060-gd07b43284ab3 #0\n Hardware name: linux,dummy-virt (DT)\n pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n pc : sock_sendmsg_nosec net/socket.c:733 [inline]\n pc : sock_sendmsg_nosec net/socket.c:728 [inline]\n pc : __sock_sendmsg+0x5c/0x60 net/socket.c:745\n lr : sock_sendmsg_nosec net/socket.c:730 [inline]\n lr : __sock_sendmsg+0x54/0x60 net/socket.c:745\n sp : ffff800088ea3b30\n x29: ffff800088ea3b30 x28: fbf00000062bc900 x27: 0000000000000000\n x26: ffff800088ea3bc0 x25: ffff800088ea3bc0 x24: 0000000000000000\n x23: f9f00000048dc000 x22: 0000000000000000 x21: ffff800088ea3d90\n x20: f9f00000048dc000 x19: ffff800088ea3d90 x18: 0000000000000001\n x17: 0000000000000000 x16: 0000000000000000 x15: 000000002002ffaf\n x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n x11: 0000000000000000 x10: ffff8000815849c0 x9 : ffff8000815b49c0\n x8 : 0000000000000000 x7 : 000000000000003f x6 : 0000000000000000\n x5 : 00000000000007e0 x4 : fff07ffffd239000 x3 : fbf00000062bc900\n x2 : 0000000000000000 x1 : 0000000000000000 x0 : 00000000fffffdef\n Call trace:\n sock_sendmsg_nosec net/socket.c:733 [inline]\n __sock_sendmsg+0x5c/0x60 net/socket.c:745\n ____sys_sendmsg+0x274/0x2ac net/socket.c:2597\n ___sys_sendmsg+0xac/0x100 net/socket.c:2651\n __sys_sendmsg+0x84/0xe0 net/socket.c:2680\n __do_sys_sendmsg net/socket.c:2689 [inline]\n __se_sys_sendmsg net/socket.c:2687 [inline]\n __arm64_sys_sendmsg+0x24/0x30 net/socket.c:2687\n __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]\n invoke_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49\n el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132\n do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151\n el0_svc+0x34/0xec arch/arm64/kernel/entry-common.c:712\n el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:730\n el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:598\n Code: f9404463 d63f0060 3108441f 54fffe81 (d4210000)\n ---[ end trace 0000000000000000 ]---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv4/tcp_bpf.c"], "versions": [{"version": "4f738adba30a7cfc006f605707e7aee847ffefa0", "lessThan": "6f9fdf5806cced888c43512bccbdf7fefd50f510", "status": "affected", "versionType": "git"}, {"version": "4f738adba30a7cfc006f605707e7aee847ffefa0", "lessThan": "3efe53eb221a38e207c1e3f81c51e4ca057d50c2", "status": "affected", "versionType": "git"}, {"version": "4f738adba30a7cfc006f605707e7aee847ffefa0", "lessThan": "78bb38d9c5a311c5f8bdef7c9557d7d81ca30e4a", "status": "affected", "versionType": "git"}, {"version": "4f738adba30a7cfc006f605707e7aee847ffefa0", "lessThan": "810a4e7d92dea4074cb04c25758320909d752193", "status": "affected", "versionType": "git"}, {"version": "4f738adba30a7cfc006f605707e7aee847ffefa0", "lessThan": "c8219a27fa43a2cbf99f5176f6dddfe73e7a24ae", "status": "affected", "versionType": "git"}, {"version": "4f738adba30a7cfc006f605707e7aee847ffefa0", "lessThan": "126d72b726c4cf1119f3a7fe413a78d341c3fea9", "status": "affected", "versionType": "git"}, {"version": "4f738adba30a7cfc006f605707e7aee847ffefa0", "lessThan": "fe1910f9337bd46a9343967b547ccab26b4b2c6e", "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/ipv4/tcp_bpf.c"], "versions": [{"version": "4.17", "status": "affected"}, {"version": "0", "lessThan": "4.17", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.284", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.226", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.167", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.110", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.51", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.10", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/6f9fdf5806cced888c43512bccbdf7fefd50f510"}, {"url": "https://git.kernel.org/stable/c/3efe53eb221a38e207c1e3f81c51e4ca057d50c2"}, {"url": "https://git.kernel.org/stable/c/78bb38d9c5a311c5f8bdef7c9557d7d81ca30e4a"}, {"url": "https://git.kernel.org/stable/c/810a4e7d92dea4074cb04c25758320909d752193"}, {"url": "https://git.kernel.org/stable/c/c8219a27fa43a2cbf99f5176f6dddfe73e7a24ae"}, {"url": "https://git.kernel.org/stable/c/126d72b726c4cf1119f3a7fe413a78d341c3fea9"}, {"url": "https://git.kernel.org/stable/c/fe1910f9337bd46a9343967b547ccab26b4b2c6e"}], "title": "tcp_bpf: fix return value of tcp_bpf_sendmsg()", "x_generator": {"engine": "bippy-5f407fcff5a0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-09-29T14:29:59.160997Z", "id": "CVE-2024-46783", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-29T14:30:13.589Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-46783", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-29T14:29:59.160997Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-29T14:30:03.461Z"}}], "cna": {"title": "tcp_bpf: fix return value of tcp_bpf_sendmsg()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4f738adba30a", "lessThan": "6f9fdf5806cc", "versionType": "git"}, {"status": "affected", "version": "4f738adba30a", "lessThan": "3efe53eb221a", "versionType": "git"}, {"status": "affected", "version": "4f738adba30a", "lessThan": "78bb38d9c5a3", "versionType": "git"}, {"status": "affected", "version": "4f738adba30a", "lessThan": "810a4e7d92de", "versionType": "git"}, {"status": "affected", "version": "4f738adba30a", "lessThan": "c8219a27fa43", "versionType": "git"}, {"status": "affected", "version": "4f738adba30a", "lessThan": "126d72b726c4", "versionType": "git"}, {"status": "affected", "version": "4f738adba30a", "lessThan": "fe1910f9337b", "versionType": "git"}], "programFiles": ["net/ipv4/tcp_bpf.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.17"}, {"status": "unaffected", "version": "0", "lessThan": "4.17", "versionType": "semver"}, {"status": "unaffected", "version": "5.4.284", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.226", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.167", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.110", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.51", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.10.10", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/ipv4/tcp_bpf.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/6f9fdf5806cced888c43512bccbdf7fefd50f510"}, {"url": "https://git.kernel.org/stable/c/3efe53eb221a38e207c1e3f81c51e4ca057d50c2"}, {"url": "https://git.kernel.org/stable/c/78bb38d9c5a311c5f8bdef7c9557d7d81ca30e4a"}, {"url": "https://git.kernel.org/stable/c/810a4e7d92dea4074cb04c25758320909d752193"}, {"url": "https://git.kernel.org/stable/c/c8219a27fa43a2cbf99f5176f6dddfe73e7a24ae"}, {"url": "https://git.kernel.org/stable/c/126d72b726c4cf1119f3a7fe413a78d341c3fea9"}, {"url": "https://git.kernel.org/stable/c/fe1910f9337bd46a9343967b547ccab26b4b2c6e"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp_bpf: fix return value of tcp_bpf_sendmsg()\n\nWhen we cork messages in psock->cork, the last message triggers the\nflushing will result in sending a sk_msg larger than the current\nmessage size. In this case, in tcp_bpf_send_verdict(), 'copied' becomes\nnegative at least in the following case:\n\n468 case __SK_DROP:\n469 default:\n470 sk_msg_free_partial(sk, msg, tosend);\n471 sk_msg_apply_bytes(psock, tosend);\n472 *copied -= (tosend + delta); // <==== HERE\n473 return -EACCES;\n\nTherefore, it could lead to the following BUG with a proper value of\n'copied' (thanks to syzbot). We should not use negative 'copied' as a\nreturn value here.\n\n ------------[ cut here ]------------\n kernel BUG at net/socket.c:733!\n Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP\n Modules linked in:\n CPU: 0 UID: 0 PID: 3265 Comm: syz-executor510 Not tainted 6.11.0-rc3-syzkaller-00060-gd07b43284ab3 #0\n Hardware name: linux,dummy-virt (DT)\n pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n pc : sock_sendmsg_nosec net/socket.c:733 [inline]\n pc : sock_sendmsg_nosec net/socket.c:728 [inline]\n pc : __sock_sendmsg+0x5c/0x60 net/socket.c:745\n lr : sock_sendmsg_nosec net/socket.c:730 [inline]\n lr : __sock_sendmsg+0x54/0x60 net/socket.c:745\n sp : ffff800088ea3b30\n x29: ffff800088ea3b30 x28: fbf00000062bc900 x27: 0000000000000000\n x26: ffff800088ea3bc0 x25: ffff800088ea3bc0 x24: 0000000000000000\n x23: f9f00000048dc000 x22: 0000000000000000 x21: ffff800088ea3d90\n x20: f9f00000048dc000 x19: ffff800088ea3d90 x18: 0000000000000001\n x17: 0000000000000000 x16: 0000000000000000 x15: 000000002002ffaf\n x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n x11: 0000000000000000 x10: ffff8000815849c0 x9 : ffff8000815b49c0\n x8 : 0000000000000000 x7 : 000000000000003f x6 : 0000000000000000\n x5 : 00000000000007e0 x4 : fff07ffffd239000 x3 : fbf00000062bc900\n x2 : 0000000000000000 x1 : 0000000000000000 x0 : 00000000fffffdef\n Call trace:\n sock_sendmsg_nosec net/socket.c:733 [inline]\n __sock_sendmsg+0x5c/0x60 net/socket.c:745\n ____sys_sendmsg+0x274/0x2ac net/socket.c:2597\n ___sys_sendmsg+0xac/0x100 net/socket.c:2651\n __sys_sendmsg+0x84/0xe0 net/socket.c:2680\n __do_sys_sendmsg net/socket.c:2689 [inline]\n __se_sys_sendmsg net/socket.c:2687 [inline]\n __arm64_sys_sendmsg+0x24/0x30 net/socket.c:2687\n __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]\n invoke_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49\n el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132\n do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151\n el0_svc+0x34/0xec arch/arm64/kernel/entry-common.c:712\n el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:730\n el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:598\n Code: f9404463 d63f0060 3108441f 54fffe81 (d4210000)\n ---[ end trace 0000000000000000 ]---"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:46:33.608Z"}}}, "cveMetadata": {"cveId": "CVE-2024-46783", "state": "PUBLISHED", "dateUpdated": "2024-11-05T09:46:33.608Z", "dateReserved": "2024-09-11T15:12:18.276Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-09-18T07:12:39.573Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "696176F3-9A41-4ABF-A284-5551C94F0B61", "versionEndExcluding": "5.4.284", "versionStartIncluding": "4.17", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "864FC17C-501A-4823-A643-6F35D65D8A97", "versionEndExcluding": "5.10.226", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "043405A4-25FE-45D4-A7BB-2A0C3B7D17C1", "versionEndExcluding": "5.15.167", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6B1A95FC-7E7E-428B-BB59-F76640C652AE", "versionEndExcluding": "6.1.110", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E4529134-BAC4-4776-840B-304009E181A0", "versionEndExcluding": "6.6.51", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "ACDEE48C-137A-4731-90D0-A675865E1BED", "versionEndExcluding": "6.10.10", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*", "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*", "matchCriteriaId": "4DEB27E7-30AA-45CC-8934-B89263EF3551", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*", "matchCriteriaId": "E0005AEF-856E-47EB-BFE4-90C46899394D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*", "matchCriteriaId": "39889A68-6D34-47A6-82FC-CD0BF23D6754", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*", "matchCriteriaId": "B8383ABF-1457-401F-9B61-EE50F4C61F4F", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*", "matchCriteriaId": "B77A9280-37E6-49AD-B559-5B23A3B1DC3D", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp_bpf: fix return value of tcp_bpf_sendmsg()\n\nWhen we cork messages in psock->cork, the last message triggers the\nflushing will result in sending a sk_msg larger than the current\nmessage size. In this case, in tcp_bpf_send_verdict(), 'copied' becomes\nnegative at least in the following case:\n\n468 case __SK_DROP:\n469 default:\n470 sk_msg_free_partial(sk, msg, tosend);\n471 sk_msg_apply_bytes(psock, tosend);\n472 *copied -= (tosend + delta); // <==== HERE\n473 return -EACCES;\n\nTherefore, it could lead to the following BUG with a proper value of\n'copied' (thanks to syzbot). We should not use negative 'copied' as a\nreturn value here.\n\n ------------[ cut here ]------------\n kernel BUG at net/socket.c:733!\n Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP\n Modules linked in:\n CPU: 0 UID: 0 PID: 3265 Comm: syz-executor510 Not tainted 6.11.0-rc3-syzkaller-00060-gd07b43284ab3 #0\n Hardware name: linux,dummy-virt (DT)\n pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n pc : sock_sendmsg_nosec net/socket.c:733 [inline]\n pc : sock_sendmsg_nosec net/socket.c:728 [inline]\n pc : __sock_sendmsg+0x5c/0x60 net/socket.c:745\n lr : sock_sendmsg_nosec net/socket.c:730 [inline]\n lr : __sock_sendmsg+0x54/0x60 net/socket.c:745\n sp : ffff800088ea3b30\n x29: ffff800088ea3b30 x28: fbf00000062bc900 x27: 0000000000000000\n x26: ffff800088ea3bc0 x25: ffff800088ea3bc0 x24: 0000000000000000\n x23: f9f00000048dc000 x22: 0000000000000000 x21: ffff800088ea3d90\n x20: f9f00000048dc000 x19: ffff800088ea3d90 x18: 0000000000000001\n x17: 0000000000000000 x16: 0000000000000000 x15: 000000002002ffaf\n x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n x11: 0000000000000000 x10: ffff8000815849c0 x9 : ffff8000815b49c0\n x8 : 0000000000000000 x7 : 000000000000003f x6 : 0000000000000000\n x5 : 00000000000007e0 x4 : fff07ffffd239000 x3 : fbf00000062bc900\n x2 : 0000000000000000 x1 : 0000000000000000 x0 : 00000000fffffdef\n Call trace:\n sock_sendmsg_nosec net/socket.c:733 [inline]\n __sock_sendmsg+0x5c/0x60 net/socket.c:745\n ____sys_sendmsg+0x274/0x2ac net/socket.c:2597\n ___sys_sendmsg+0xac/0x100 net/socket.c:2651\n __sys_sendmsg+0x84/0xe0 net/socket.c:2680\n __do_sys_sendmsg net/socket.c:2689 [inline]\n __se_sys_sendmsg net/socket.c:2687 [inline]\n __arm64_sys_sendmsg+0x24/0x30 net/socket.c:2687\n __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]\n invoke_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49\n el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132\n do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151\n el0_svc+0x34/0xec arch/arm64/kernel/entry-common.c:712\n el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:730\n el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:598\n Code: f9404463 d63f0060 3108441f 54fffe81 (d4210000)\n ---[ end trace 0000000000000000 ]---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tcp_bpf: se corrige el valor de retorno de tcp_bpf_sendmsg() Cuando copiamos mensajes en psock-&gt;cork, el \u00faltimo mensaje que activa el vaciado dar\u00e1 como resultado el env\u00edo de un sk_msg m\u00e1s grande que el tama\u00f1o del mensaje actual. En este caso, en tcp_bpf_send_verdict(), 'copied' se vuelve negativo al menos en el siguiente caso: 468 case __SK_DROP: 469 default: 470 sk_msg_free_partial(sk, msg, tosend); 471 sk_msg_apply_bytes(psock, tosend); 472 *copied -= (tosend + delta); // &lt;==== HERE 473 return -EACCES; Por lo tanto, podr\u00eda generar el siguiente ERROR con un valor adecuado de 'copied' (gracias a syzbot). No deber\u00edamos usar 'copied' negativo como valor de retorno aqu\u00ed. ------------[ corte aqu\u00ed ]------------ \u00a1ERROR del kernel en net/socket.c:733! Error interno: Oops - BUG: 00000000f2000800 [#1] PREEMPT M\u00f3dulos SMP vinculados en: CPU: 0 UID: 0 PID: 3265 Comm: syz-executor510 No contaminado 6.11.0-rc3-syzkaller-00060-gd07b43284ab3 #0 Nombre del hardware: linux,dummy-virt (DT) pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : sock_sendmsg_nosec net/socket.c:733 [en l\u00ednea] pc : sock_sendmsg_nosec net/socket.c:728 [en l\u00ednea] pc : __sock_sendmsg+0x5c/0x60 net/socket.c:745 lr : sock_sendmsg_nosec net/socket.c:730 [en l\u00ednea] lr : __sock_sendmsg+0x54/0x60 net/socket.c:745 sp : ffff800088ea3b30 x29: ffff800088ea3b30 x28: fbf00000062bc900 x27: 0000000000000000 x26: ffff800088ea3bc0 x25: ffff800088ea3bc0 x24: 0000000000000000 x23: f9f0000048dc000 x22: 0000000000000000 x21: ffff800088ea3d90 x20: f9f00000048dc000 x19: ffff800088ea3d90 x18: 0000000000000001 x17: 0000000000000000 x16: 0000000000000000 x15: 000000002002ffaf x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: ffff8000815849c0 x9 : ffff8000815b49c0 x8 : 0000000000000000 x7 : 0000000000000003f x6 : 0000000000000000 x5 : 00000000000007e0 x4 : fff07ffffd239000 x3 : fbf00000062bc900 x2 : 000000000000000 x1 : 000000000000000 x0 : 00000000fffffdef Rastreo de llamadas: sock_sendmsg_nosec net/socket.c:733 [en l\u00ednea] __sock_sendmsg+0x5c/0x60 net/socket.c:745 ____sys_sendmsg+0x274/0x2ac net/socket.c:2597 ___sys_sendmsg+0xac/0x100 net/socket.c:2651 __sys_sendmsg+0x84/0xe0 net/socket.c:2680 __do_sys_sendmsg net/socket.c:2689 [en l\u00ednea] __se_sys_sendmsg net/socket.c:2687 [en l\u00ednea] __arm64_sys_sendmsg+0x24/0x30 net/socket.c:2687 __invoke_syscall arch/arm64/kernel/syscall.c:35 [en l\u00ednea] anybody_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151 el0_svc+0x34/0xec arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:598 C\u00f3digo: f9404463 d63f0060 3108441f 54fffe81 (d4210000) ---[ fin de seguimiento 0000000000000000 ]---"}], "id": "CVE-2024-46783", "lastModified": "2024-11-20T15:47:35.273", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2024-09-18T08:15:05.630", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/126d72b726c4cf1119f3a7fe413a78d341c3fea9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3efe53eb221a38e207c1e3f81c51e4ca057d50c2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6f9fdf5806cced888c43512bccbdf7fefd50f510"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/78bb38d9c5a311c5f8bdef7c9557d7d81ca30e4a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/810a4e7d92dea4074cb04c25758320909d752193"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c8219a27fa43a2cbf99f5176f6dddfe73e7a24ae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fe1910f9337bd46a9343967b547ccab26b4b2c6e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: tcp_bpf: fix return value of tcp_bpf_sendmsg()", "id": "2313131", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2313131"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-190", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ntcp_bpf: fix return value of tcp_bpf_sendmsg()\nWhen we cork messages in psock->cork, the last message triggers the\nflushing will result in sending a sk_msg larger than the current\nmessage size. In this case, in tcp_bpf_send_verdict(), 'copied' becomes\nnegative at least in the following case:\n468 case __SK_DROP:\n469 default:\n470 sk_msg_free_partial(sk, msg, tosend);\n471 sk_msg_apply_bytes(psock, tosend);\n472 *copied -= (tosend + delta); // <==== HERE\n473 return -EACCES;\nTherefore, it could lead to the following BUG with a proper value of\n'copied' (thanks to syzbot). We should not use negative 'copied' as a\nreturn value here.\n------------[ cut here ]------------\nkernel BUG at net/socket.c:733!\nInternal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP\nModules linked in:\nCPU: 0 UID: 0 PID: 3265 Comm: syz-executor510 Not tainted 6.11.0-rc3-syzkaller-00060-gd07b43284ab3 #0\nHardware name: linux,dummy-virt (DT)\npstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\npc : sock_sendmsg_nosec net/socket.c:733 [inline]\npc : sock_sendmsg_nosec net/socket.c:728 [inline]\npc : __sock_sendmsg+0x5c/0x60 net/socket.c:745\nlr : sock_sendmsg_nosec net/socket.c:730 [inline]\nlr : __sock_sendmsg+0x54/0x60 net/socket.c:745\nsp : ffff800088ea3b30\nx29: ffff800088ea3b30 x28: fbf00000062bc900 x27: 0000000000000000\nx26: ffff800088ea3bc0 x25: ffff800088ea3bc0 x24: 0000000000000000\nx23: f9f00000048dc000 x22: 0000000000000000 x21: ffff800088ea3d90\nx20: f9f00000048dc000 x19: ffff800088ea3d90 x18: 0000000000000001\nx17: 0000000000000000 x16: 0000000000000000 x15: 000000002002ffaf\nx14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\nx11: 0000000000000000 x10: ffff8000815849c0 x9 : ffff8000815b49c0\nx8 : 0000000000000000 x7 : 000000000000003f x6 : 0000000000000000\nx5 : 00000000000007e0 x4 : fff07ffffd239000 x3 : fbf00000062bc900\nx2 : 0000000000000000 x1 : 0000000000000000 x0 : 00000000fffffdef\nCall trace:\nsock_sendmsg_nosec net/socket.c:733 [inline]\n__sock_sendmsg+0x5c/0x60 net/socket.c:745\n____sys_sendmsg+0x274/0x2ac net/socket.c:2597\n___sys_sendmsg+0xac/0x100 net/socket.c:2651\n__sys_sendmsg+0x84/0xe0 net/socket.c:2680\n__do_sys_sendmsg net/socket.c:2689 [inline]\n__se_sys_sendmsg net/socket.c:2687 [inline]\n__arm64_sys_sendmsg+0x24/0x30 net/socket.c:2687\n__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]\ninvoke_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49\nel0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132\ndo_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151\nel0_svc+0x34/0xec arch/arm64/kernel/entry-common.c:712\nel0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:730\nel0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:598\nCode: f9404463 d63f0060 3108441f 54fffe81 (d4210000)\n---[ end trace 0000000000000000 ]---"], "name": "CVE-2024-46783", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-09-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-46783\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-46783\nhttps://lore.kernel.org/linux-cve-announce/2024091850-CVE-2024-46783-edcb@gregkh/T"], "threat_severity": "Moderate"}