CVE-2024-46783 (GCVE-0-2024-46783)

Vulnerability from cvelistv5 – Published: 2024-09-18 07:12 – Updated: 2025-11-03 22:18
VLAI?
Title
tcp_bpf: fix return value of tcp_bpf_sendmsg()
Summary
In the Linux kernel, the following vulnerability has been resolved: tcp_bpf: fix return value of tcp_bpf_sendmsg() When we cork messages in psock->cork, the last message triggers the flushing will result in sending a sk_msg larger than the current message size. In this case, in tcp_bpf_send_verdict(), 'copied' becomes negative at least in the following case: 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); // <==== HERE 473 return -EACCES; Therefore, it could lead to the following BUG with a proper value of 'copied' (thanks to syzbot). We should not use negative 'copied' as a return value here. ------------[ cut here ]------------ kernel BUG at net/socket.c:733! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 UID: 0 PID: 3265 Comm: syz-executor510 Not tainted 6.11.0-rc3-syzkaller-00060-gd07b43284ab3 #0 Hardware name: linux,dummy-virt (DT) pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : sock_sendmsg_nosec net/socket.c:733 [inline] pc : sock_sendmsg_nosec net/socket.c:728 [inline] pc : __sock_sendmsg+0x5c/0x60 net/socket.c:745 lr : sock_sendmsg_nosec net/socket.c:730 [inline] lr : __sock_sendmsg+0x54/0x60 net/socket.c:745 sp : ffff800088ea3b30 x29: ffff800088ea3b30 x28: fbf00000062bc900 x27: 0000000000000000 x26: ffff800088ea3bc0 x25: ffff800088ea3bc0 x24: 0000000000000000 x23: f9f00000048dc000 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 : 000000000000003f x6 : 0000000000000000 x5 : 00000000000007e0 x4 : fff07ffffd239000 x3 : fbf00000062bc900 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 00000000fffffdef Call trace: sock_sendmsg_nosec net/socket.c:733 [inline] __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 [inline] __se_sys_sendmsg net/socket.c:2687 [inline] __arm64_sys_sendmsg+0x24/0x30 net/socket.c:2687 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_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 Code: f9404463 d63f0060 3108441f 54fffe81 (d4210000) ---[ end trace 0000000000000000 ]---
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < 6f9fdf5806cced888c43512bccbdf7fefd50f510 (git)
Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < 3efe53eb221a38e207c1e3f81c51e4ca057d50c2 (git)
Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < 78bb38d9c5a311c5f8bdef7c9557d7d81ca30e4a (git)
Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < 810a4e7d92dea4074cb04c25758320909d752193 (git)
Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < c8219a27fa43a2cbf99f5176f6dddfe73e7a24ae (git)
Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < 126d72b726c4cf1119f3a7fe413a78d341c3fea9 (git)
Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < fe1910f9337bd46a9343967b547ccab26b4b2c6e (git)
Create a notification for this product.
    Linux Linux Affected: 4.17
Unaffected: 0 , < 4.17 (semver)
Unaffected: 5.4.284 , ≤ 5.4.* (semver)
Unaffected: 5.10.226 , ≤ 5.10.* (semver)
Unaffected: 5.15.167 , ≤ 5.15.* (semver)
Unaffected: 6.1.110 , ≤ 6.1.* (semver)
Unaffected: 6.6.51 , ≤ 6.6.* (semver)
Unaffected: 6.10.10 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-46783",
    "datePublished": "2024-09-18T07:12:39.573Z",
    "dateReserved": "2024-09-11T15:12:18.276Z",
    "dateUpdated": "2025-11-03T22:18:29.717Z",
    "state": "PUBLISHED"
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      "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-\u003ecork, 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(), \u0027copied\u0027 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); // \u003c==== HERE\\n473                 return -EACCES;\\n\\nTherefore, it could lead to the following BUG with a proper value of\\n\u0027copied\u0027 (thanks to syzbot). We should not use negative \u0027copied\u0027 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\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.