CVE-2025-38458

MEDIUM EPSS 5.6%
Published Jul 25, 202511mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
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Published Jul 25, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

Description

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: <TASK> 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 ____sys_sendmsg+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

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
5.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 18

VendorProductVersionRange
linuxlinux_kernel*≥2.6.13  –  <5.4.296
linuxlinux_kernel*≥5.5  –  <5.10.240
linuxlinux_kernel*≥5.11  –  <5.15.189
linuxlinux_kernel*≥5.16  –  <6.1.146
linuxlinux_kernel*≥6.2  –  <6.6.99
linuxlinux_kernel*≥6.7  –  <6.12.39
linuxlinux_kernel*≥6.13  –  <6.15.7
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
debiandebian_linux11.0any

References 10

  • git.kernel.org https://git.kernel.org/stable/c/07b585ae3699c0a5026f86ac846f144e34875eee
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/22fc46cea91df3dce140a7dc6847c6fcf0354505
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/27b5bb7ea1a8fa7b8c4cfde4d2bf8650cca2e8e8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/34a09d6240a25185ef6fc5a19dbb3cdbb6a78bc0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f1cad84ac1a6af42d9d57e879de47ce37995024
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f8a9b396037daae453a108faec5b28886361323
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ec7e943aee5c28c173933f9defd40892fb3be3d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a16fbe6087e91c8e7c4aa50e1af7ad56edbd9e3e
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/07b585ae3699c0a5026f86ac846f144e34875eee
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/22fc46cea91df3dce140a7dc6847c6fcf0354505
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/27b5bb7ea1a8fa7b8c4cfde4d2bf8650cca2e8e8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/34a09d6240a25185ef6fc5a19dbb3cdbb6a78bc0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f1cad84ac1a6af42d9d57e879de47ce37995024
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f8a9b396037daae453a108faec5b28886361323
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ec7e943aee5c28c173933f9defd40892fb3be3d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a16fbe6087e91c8e7c4aa50e1af7ad56edbd9e3e
    Patch