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GHSA-6JR5-7GRQ-6FXJ

Vulnerability from github – Published: 2025-07-25 18:30 – Updated: 2025-12-23 00:30
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

atm: clip: Fix NULL pointer dereference in vcc_sendmsg()

atmarpd_dev_ops does not implement the send method, which may cause crash as bellow.

BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 0 P4D 0 Oops: Oops: 0010 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.15.0-rc6-syzkaller-00346-g5723cc3450bc #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc9000d3cf778 EFLAGS: 00010246 RAX: 1ffffffff1910dd1 RBX: 00000000000000c0 RCX: dffffc0000000000 RDX: ffffc9000dc82000 RSI: ffff88803e4c4640 RDI: ffff888052cd0000 RBP: ffffc9000d3cf8d0 R08: ffff888052c9143f R09: 1ffff1100a592287 R10: dffffc0000000000 R11: 0000000000000000 R12: 1ffff92001a79f00 R13: ffff888052cd0000 R14: ffff88803e4c4640 R15: ffffffff8c886e88 FS: 00007fbc762566c0(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 0000000041f1b000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vcc_sendmsg+0xa10/0xc50 net/atm/common.c:644 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:727 _syssendmsg+0x52d/0x830 net/socket.c:2566 _sys_sendmsg+0x21f/0x2a0 net/socket.c:2620 __sys_sendmmsg+0x227/0x430 net/socket.c:2709 __do_sys_sendmmsg net/socket.c:2736 [inline] __se_sys_sendmmsg net/socket.c:2733 [inline] __x64_sys_sendmmsg+0xa0/0xc0 net/socket.c:2733 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-38458"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T16:15:31Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\natm: clip: Fix NULL pointer dereference in vcc_sendmsg()\n\natmarpd_dev_ops does not implement the send method, which may cause crash\nas bellow.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nPGD 0 P4D 0\nOops: Oops: 0010 [#1] SMP KASAN NOPTI\nCPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.15.0-rc6-syzkaller-00346-g5723cc3450bc #0 PREEMPT(full)\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\nRIP: 0010:0x0\nCode: Unable to access opcode bytes at 0xffffffffffffffd6.\nRSP: 0018:ffffc9000d3cf778 EFLAGS: 00010246\nRAX: 1ffffffff1910dd1 RBX: 00000000000000c0 RCX: dffffc0000000000\nRDX: ffffc9000dc82000 RSI: ffff88803e4c4640 RDI: ffff888052cd0000\nRBP: ffffc9000d3cf8d0 R08: ffff888052c9143f R09: 1ffff1100a592287\nR10: dffffc0000000000 R11: 0000000000000000 R12: 1ffff92001a79f00\nR13: ffff888052cd0000 R14: ffff88803e4c4640 R15: ffffffff8c886e88\nFS:  00007fbc762566c0(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffffffffffffd6 CR3: 0000000041f1b000 CR4: 0000000000352ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n vcc_sendmsg+0xa10/0xc50 net/atm/common.c:644\n sock_sendmsg_nosec net/socket.c:712 [inline]\n __sock_sendmsg+0x219/0x270 net/socket.c:727\n ____sys_sendmsg+0x52d/0x830 net/socket.c:2566\n ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620\n __sys_sendmmsg+0x227/0x430 net/socket.c:2709\n __do_sys_sendmmsg net/socket.c:2736 [inline]\n __se_sys_sendmmsg net/socket.c:2733 [inline]\n __x64_sys_sendmmsg+0xa0/0xc0 net/socket.c:2733\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f",
  "id": "GHSA-6jr5-7grq-6fxj",
  "modified": "2025-12-23T00:30:30Z",
  "published": "2025-07-25T18:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38458"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/07b585ae3699c0a5026f86ac846f144e34875eee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/22fc46cea91df3dce140a7dc6847c6fcf0354505"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27b5bb7ea1a8fa7b8c4cfde4d2bf8650cca2e8e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34a09d6240a25185ef6fc5a19dbb3cdbb6a78bc0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f1cad84ac1a6af42d9d57e879de47ce37995024"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f8a9b396037daae453a108faec5b28886361323"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ec7e943aee5c28c173933f9defd40892fb3be3d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a16fbe6087e91c8e7c4aa50e1af7ad56edbd9e3e"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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