CVE-2025-39828

一、漏洞信息
 漏洞编号：[CVE-2025-39828](https://nvd.nist.gov/vuln/detail/CVE-2025-39828)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.4.0,6.6.0
 CVSS V3.0分值：
  BaseScore：N/A None
  Vector：CVSS：3.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:atm: atmtcp: Prevent arbitrary write in atmtcp_recv_control().syzbot reported the splat below. [0]When atmtcp_v_open() or atmtcp_v_close() is called via connect()or close(), atmtcp_send_control() is called to send an in-kernelspecial message.The message has ATMTCP_HDR_MAGIC in atmtcp_control.hdr.length.Also, a pointer of struct atm_vcc is set to atmtcp_control.vcc.The notable thing is struct atmtcp_control is uAPI but has aspace for an in-kernel pointer.  struct atmtcp_control {  	struct atmtcp_hdr hdr;	/* must be first */  ...  	atm_kptr_t vcc;		/* both directions */  ...  } __ATM_API_ALIGN;  typedef struct { unsigned char _[8]; } __ATM_API_ALIGN atm_kptr_t;The special message is processed in atmtcp_recv_control() calledfrom atmtcp_c_send().atmtcp_c_send() is vcc->dev->ops->send() and called from 2 paths:  1. .ndo_start_xmit() (vcc->send() == atm_send_aal0())  2. vcc_sendmsg()The problem is sendmsg() does not validate the message length anduserspace can abuse atmtcp_recv_control() to overwrite any kptrby atmtcp_control.Let s add a new ->pre_send() hook to validate messages from sendmsg().[0]:Oops: general protection fault, probably for non-canonical address 0xdffffc00200000ab: 0000 [#1] SMP KASAN PTIKASAN: probably user-memory-access in range [0x0000000100000558-0x000000010000055f]CPU: 0 UID: 0 PID: 5865 Comm: syz-executor331 Not tainted 6.17.0-rc1-syzkaller-00215-gbab3ce404553 #0 PREEMPT(full)Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025RIP: 0010:atmtcp_recv_control drivers/atm/atmtcp.c:93 [inline]RIP: 0010:atmtcp_c_send+0x1da/0x950 drivers/atm/atmtcp.c:297Code: 4d 8d 75 1a 4c 89 f0 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 15 06 00 00 41 0f b7 1e 4d 8d b7 60 05 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 13 06 00 00 66 41 89 1e 4d 8d 75 1c 4cRSP: 0018:ffffc90003f5f810 EFLAGS: 00010203RAX: 00000000200000ab RBX: 0000000000000000 RCX: 0000000000000000RDX: ffff88802a510000 RSI: 00000000ffffffff RDI: ffff888030a6068cRBP: ffff88802699fb40 R08: ffff888030a606eb R09: 1ffff1100614c0ddR10: dffffc0000000000 R11: ffffffff8718fc40 R12: dffffc0000000000R13: ffff888030a60680 R14: 000000010000055f R15: 00000000ffffffffFS:  00007f8d7e9236c0(0000) GS:ffff888125c1c000(0000) knlGS:0000000000000000CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 000000000045ad50 CR3: 0000000075bde000 CR4: 00000000003526f0Call Trace: <TASK> vcc_sendmsg+0xa10/0xc60 net/atm/common.c:645 sock_sendmsg_nosec net/socket.c:714 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:729 ____sys_sendmsg+0x505/0x830 net/socket.c:2614 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668 __sys_sendmsg net/socket.c:2700 [inline] __do_sys_sendmsg net/socket.c:2705 [inline] __se_sys_sendmsg net/socket.c:2703 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7fRIP: 0033:0x7f8d7e96a4a9Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48RSP: 002b:00007f8d7e923198 EFLAGS: 00000246 ORIG_RAX: 000000000000002eRAX: ffffffffffffffda RBX: 00007f8d7e9f4308 RCX: 00007f8d7e96a4a9RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000005RBP: 00007f8d7e9f4300 R08: 65732f636f72702f R09: 65732f636f72702fR10: 65732f636f72702f R11: 0000000000000246 R12: 00007f8d7e9c10acR13: 00007f8d7e9231a0 R14: 0000200000000200 R15: 0000200000000250 </TASK>Modules linked in:
 漏洞公开时间：2025-09-16 21:16:03
 漏洞创建时间：2025-09-16 22:21:19
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-39828
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
|  | https://git.kernel.org/stable/c/b502f16bad8f0a4cfbd023452766f21bfda39dde |  |
|  | https://git.kernel.org/stable/c/0a6a6d4fb333f7afe22e59ffed18511a7a98efc8 |  |
|  | https://git.kernel.org/stable/c/62f368472b0aa4b5d91d9b983152855c6b6d8925 |  |
|  | https://git.kernel.org/stable/c/51872b26429077be611b0a1816e0e722278015c3 |  |
|  | https://git.kernel.org/stable/c/3c80c230d6e3e6f63d43f4c3f0bb344e3e8b119b |  |
|  | https://git.kernel.org/stable/c/33f9e6dc66b32202b95fc861e6b3ea4b0c185b0b |  |
|  | https://git.kernel.org/stable/c/3ab9f5ad9baefe6d3d4c37053cdfca2761001dfe |  |
|  | https://git.kernel.org/stable/c/ec79003c5f9d2c7f9576fc69b8dbda80305cbe3a |  |
|  | https://lore.kernel.org/linux-cve-announce/2025091617-CVE-2025-39828-c69f@gregkh/T/#u |  |
|  | https://www.cve.org/CVERecord?id=CVE-2025-39828 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-39828 |  |
|  | https://lore.kernel.org/linux-cve-announce/2025091617-CVE-2025-39828-c69f@gregkh/T |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2395785 |  |
|  | https://docs.bell-sw.com/security/cves/CVE-2025-39828 |  |
|  | https://ubuntu.com/security/CVE-2025-39828 |  |
|  | https://www.cve.org/CVERecord?id=CVE-2025-39828 |  |
|  | https://git.kernel.org/linus/ec79003c5f9d2c7f9576fc69b8dbda80305cbe3a |  |
|  | https://git.kernel.org/stable/c/0a6a6d4fb333f7afe22e59ffed18511a7a98efc8 |  |
|  | https://git.kernel.org/stable/c/33f9e6dc66b32202b95fc861e6b3ea4b0c185b0b |  |
|  | https://git.kernel.org/stable/c/3ab9f5ad9baefe6d3d4c37053cdfca2761001dfe |  |
|  | https://git.kernel.org/stable/c/3c80c230d6e3e6f63d43f4c3f0bb344e3e8b119b |  |
|  | https://git.kernel.org/stable/c/51872b26429077be611b0a1816e0e722278015c3 |  |
|  | https://git.kernel.org/stable/c/62f368472b0aa4b5d91d9b983152855c6b6d8925 |  |
|  | https://git.kernel.org/stable/c/b502f16bad8f0a4cfbd023452766f21bfda39dde |  |
|  | https://git.kernel.org/stable/c/ec79003c5f9d2c7f9576fc69b8dbda80305cbe3a |  |
|  | https://advisory.echohq.com/cve/CVE-2025-39828 |  |
|  | https://git.kernel.org/stable/c/0a6a6d4fb333f7afe22e59ffed18511a7a98efc8 |  |
|  | https://git.kernel.org/stable/c/33f9e6dc66b32202b95fc861e6b3ea4b0c185b0b |  |
|  | https://git.kernel.org/stable/c/3ab9f5ad9baefe6d3d4c37053cdfca2761001dfe |  |
|  | https://git.kernel.org/stable/c/3c80c230d6e3e6f63d43f4c3f0bb344e3e8b119b |  |
|  | https://git.kernel.org/stable/c/51872b26429077be611b0a1816e0e722278015c3 |  |
|  | https://git.kernel.org/stable/c/62f368472b0aa4b5d91d9b983152855c6b6d8925 |  |
|  | https://git.kernel.org/stable/c/b502f16bad8f0a4cfbd023452766f21bfda39dde |  |
|  | https://git.kernel.org/stable/c/ec79003c5f9d2c7f9576fc69b8dbda80305cbe3a |  |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  七彩瞬析开源风险感知平台
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
| gregkh/linux |  | https://git.kernel.org/stable/c/b502f16bad8f0a4cfbd023452766f21bfda39dde |  | ljqc |
| gregkh/linux |  | https://git.kernel.org/stable/c/0a6a6d4fb333f7afe22e59ffed18511a7a98efc8 |  | ljqc |
| gregkh/linux |  | https://git.kernel.org/stable/c/62f368472b0aa4b5d91d9b983152855c6b6d8925 |  | ljqc |
| gregkh/linux |  | https://git.kernel.org/stable/c/33f9e6dc66b32202b95fc861e6b3ea4b0c185b0b |  | ljqc |
| gregkh/linux |  | https://git.kernel.org/stable/c/3ab9f5ad9baefe6d3d4c37053cdfca2761001dfe |  | ljqc |
|  |  | https://git.kernel.org/stable/c/b502f16bad8f0a4cfbd023452766f21bfda39dde |  | cvelistv5 |
|  |  | https://git.kernel.org/stable/c/0a6a6d4fb333f7afe22e59ffed18511a7a98efc8 |  | cvelistv5 |
|  |  | https://git.kernel.org/stable/c/62f368472b0aa4b5d91d9b983152855c6b6d8925 |  | cvelistv5 |
|  |  | https://git.kernel.org/stable/c/51872b26429077be611b0a1816e0e722278015c3 |  | cvelistv5 |
|  |  | https://git.kernel.org/stable/c/3c80c230d6e3e6f63d43f4c3f0bb344e3e8b119b |  | cvelistv5 |
|  |  | https://git.kernel.org/stable/c/33f9e6dc66b32202b95fc861e6b3ea4b0c185b0b |  | cvelistv5 |
|  |  | https://git.kernel.org/stable/c/3ab9f5ad9baefe6d3d4c37053cdfca2761001dfe |  | cvelistv5 |
|  |  | https://git.kernel.org/stable/c/ec79003c5f9d2c7f9576fc69b8dbda80305cbe3a |  | cvelistv5 |
|  |  | https://git.kernel.org/linus/ec79003c5f9d2c7f9576fc69b8dbda80305cbe3a |  | osv |
|  |  | https://git.kernel.org/stable/c/0a6a6d4fb333f7afe22e59ffed18511a7a98efc8 |  | osv |
|  |  | https://git.kernel.org/stable/c/33f9e6dc66b32202b95fc861e6b3ea4b0c185b0b |  | osv |
|  |  | https://git.kernel.org/stable/c/3ab9f5ad9baefe6d3d4c37053cdfca2761001dfe |  | osv |
|  |  | https://git.kernel.org/stable/c/3c80c230d6e3e6f63d43f4c3f0bb344e3e8b119b |  | osv |
|  |  | https://git.kernel.org/stable/c/51872b26429077be611b0a1816e0e722278015c3 |  | osv |
|  |  | https://git.kernel.org/stable/c/62f368472b0aa4b5d91d9b983152855c6b6d8925 |  | osv |
|  |  | https://git.kernel.org/stable/c/b502f16bad8f0a4cfbd023452766f21bfda39dde |  | osv |
|  |  | https://git.kernel.org/stable/c/ec79003c5f9d2c7f9576fc69b8dbda80305cbe3a |  | osv |
|  |  | https://git.kernel.org/stable/c/0a6a6d4fb333f7afe22e59ffed18511a7a98efc8 |  | circl |
|  |  | https://git.kernel.org/stable/c/33f9e6dc66b32202b95fc861e6b3ea4b0c185b0b |  | circl |
|  |  | https://git.kernel.org/stable/c/3ab9f5ad9baefe6d3d4c37053cdfca2761001dfe |  | circl |
|  |  | https://git.kernel.org/stable/c/3c80c230d6e3e6f63d43f4c3f0bb344e3e8b119b |  | circl |
|  |  | https://git.kernel.org/stable/c/51872b26429077be611b0a1816e0e722278015c3 |  | circl |
|  |  | https://git.kernel.org/stable/c/62f368472b0aa4b5d91d9b983152855c6b6d8925 |  | circl |
|  |  | https://git.kernel.org/stable/c/b502f16bad8f0a4cfbd023452766f21bfda39dde |  | circl |
|  |  | https://git.kernel.org/stable/c/ec79003c5f9d2c7f9576fc69b8dbda80305cbe3a |  | circl |

</details>
 
二、漏洞分析结构反馈
 影响性分析说明：
  
 openEuler评分：
   
 受影响版本排查(受影响/不受影响)：
  1.master:
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP3(5.10.0):
4.openEuler-22.03-LTS-SP4(5.10.0):
5.openEuler-24.03-LTS(6.6.0):
6.openEuler-24.03-LTS-Next(6.6.0):
7.openEuler-24.03-LTS-SP1(6.6.0):
8.openEuler-24.03-LTS-SP2(6.6.0):

修复是否涉及abi变化(是/否)：
  1.master:
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP3(5.10.0):
4.openEuler-22.03-LTS-SP4(5.10.0):
5.openEuler-24.03-LTS(6.6.0):
6.openEuler-24.03-LTS-Next(6.6.0):
7.openEuler-24.03-LTS-SP1(6.6.0):
8.openEuler-24.03-LTS-SP2(6.6.0):

原因说明：
  1.master:
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP3(5.10.0):
4.openEuler-22.03-LTS-SP4(5.10.0):
5.openEuler-24.03-LTS(6.6.0):
6.openEuler-24.03-LTS-Next(6.6.0):
7.openEuler-24.03-LTS-SP1(6.6.0):
8.openEuler-24.03-LTS-SP2(6.6.0):

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