CVE-2025-39981

一、漏洞信息
 漏洞编号：[CVE-2025-39981](https://nvd.nist.gov/vuln/detail/CVE-2025-39981)
 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:Bluetooth: MGMT: Fix possible UAFsThis attemps to fix possible UAFs caused by struct mgmt_pending beingfreed while still being processed like in the following trace, in orderto fix mgmt_pending_valid is introduce and use to check if themgmt_pending hasn t been removed from the pending list, on the completecallbacks it is used to check and in addtion remove the cmd from the listwhile holding mgmt_pending_lock to avoid TOCTOU problems since if the cmdis left on the list it can still be accessed and freed.BUG: KASAN: slab-use-after-free in mgmt_add_adv_patterns_monitor_sync+0x35/0x50 net/bluetooth/mgmt.c:5223Read of size 8 at addr ffff8880709d4dc0 by task kworker/u11:0/55CPU: 0 UID: 0 PID: 55 Comm: kworker/u11:0 Not tainted 6.16.4 #2 PREEMPT(full)Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014Workqueue: hci0 hci_cmd_sync_workCall Trace: <TASK> dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xca/0x240 mm/kasan/report.c:482 kasan_report+0x118/0x150 mm/kasan/report.c:595 mgmt_add_adv_patterns_monitor_sync+0x35/0x50 net/bluetooth/mgmt.c:5223 hci_cmd_sync_work+0x210/0x3a0 net/bluetooth/hci_sync.c:332 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x711/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 home/kwqcheii/source/fuzzing/kernel/kasan/linux-6.16.4/arch/x86/entry/entry_64.S:245 </TASK>Allocated by task 12210: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x230/0x3d0 mm/slub.c:4364 kmalloc_noprof include/linux/slab.h:905 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] mgmt_pending_new+0x65/0x1e0 net/bluetooth/mgmt_util.c:269 mgmt_pending_add+0x35/0x140 net/bluetooth/mgmt_util.c:296 __add_adv_patterns_monitor+0x130/0x200 net/bluetooth/mgmt.c:5247 add_adv_patterns_monitor+0x214/0x360 net/bluetooth/mgmt.c:5364 hci_mgmt_cmd+0x9c9/0xef0 net/bluetooth/hci_sock.c:1719 hci_sock_sendmsg+0x6ca/0xef0 net/bluetooth/hci_sock.c:1839 sock_sendmsg_nosec net/socket.c:714 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:729 sock_write_iter+0x258/0x330 net/socket.c:1133 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 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+0x77/0x7fFreed by task 12221: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2381 [inline] slab_free mm/slub.c:4648 [inline] kfree+0x18e/0x440 mm/slub.c:4847 mgmt_pending_free net/bluetooth/mgmt_util.c:311 [inline] mgmt_pending_foreach+0x30d/0x380 net/bluetooth/mgmt_util.c:257 __mgmt_power_off+0x169/0x350 net/bluetooth/mgmt.c:9444 hci_dev_close_sync+0x754/0x1330 net/bluetooth/hci_sync.c:5290 hci_dev_do_close net/bluetooth/hci_core.c:501 [inline] hci_dev_close+0x108/0x200 net/bluetooth/hci_core.c:526 sock_do_ioctl+0xd9/0x300 net/socket.c:1192 sock_ioctl+0x576/0x790 net/socket.c:1313 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf---truncated---
 漏洞公开时间：2025-10-15 16:15:36
 漏洞创建时间：2025-10-15 16:12:36
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-39981
<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/302a1f674c00dd5581ab8e493ef44767c5101aab |  |
|  | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-39981 |  |
|  | https://git.kernel.org/stable/c/87a1f16f07c6c43771754075e08f45b41d237421 |  |
|  | https://lore.kernel.org/linux-cve-announce/2025101559-CVE-2025-39981-fe1d@gregkh/T |  |
|  | https://www.cve.org/CVERecord?id=CVE-2025-39981 |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2404105 |  |
|  | https://lore.kernel.org/linux-cve-announce/2025101559-CVE-2025-39981-fe1d@gregkh/T/#u |  |
|  | https://security-tracker.debian.org/tracker/CVE-2025-39981 |  |
|  | https://advisory.echohq.com/cve/CVE-2025-39981 |  |

</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/87a1f16f07c6c43771754075e08f45b41d237421 |  | ljqc |
| gregkh/linux |  | https://git.kernel.org/stable/c/302a1f674c00dd5581ab8e493ef44767c5101aab |  | ljqc |
|  |  | https://git.kernel.org/stable/c/302a1f674c00dd5581ab8e493ef44767c5101aab |  | cvelistv5 |
|  |  | https://git.kernel.org/stable/c/87a1f16f07c6c43771754075e08f45b41d237421 |  | cvelistv5 |

</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(6.12.33):
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.openEuler-24.03-LTS-Next:
7.openEuler-24.03-LTS-SP1:
8.openEuler-24.03-LTS-SP2:

修复是否涉及abi变化(是/否)：
  1.master(6.12.33):
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.openEuler-24.03-LTS-Next:
7.openEuler-24.03-LTS-SP1:
8.openEuler-24.03-LTS-SP2:

原因说明：
  1.master(6.12.33):
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.openEuler-24.03-LTS-Next:
7.openEuler-24.03-LTS-SP1:
8.openEuler-24.03-LTS-SP2:

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CVE-2025-39981

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