CVE-2025-38473

一、漏洞信息
 漏洞编号：[CVE-2025-38473](https://nvd.nist.gov/vuln/detail/CVE-2025-38473)
 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: Fix null-ptr-deref in l2cap_sock_resume_cb()syzbot reported null-ptr-deref in l2cap_sock_resume_cb(). [0]l2cap_sock_resume_cb() has a similar problem that was fixed by commit1bff51ea59a9 ( Bluetooth: fix use-after-free error in lock_sock_nested() ).Since both l2cap_sock_kill() and l2cap_sock_resume_cb() are executedunder l2cap_sock_resume_cb(), we can avoid the issue simply by checkingif chan->data is NULL.Let s not access to the killed socket in l2cap_sock_resume_cb().[0]:BUG: KASAN: null-ptr-deref in instrument_atomic_write include/linux/instrumented.h:82 [inline]BUG: KASAN: null-ptr-deref in clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]BUG: KASAN: null-ptr-deref in l2cap_sock_resume_cb+0xb4/0x17c net/bluetooth/l2cap_sock.c:1711Write of size 8 at addr 0000000000000570 by task kworker/u9:0/52CPU: 1 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted 6.16.0-rc4-syzkaller-g7482bb149b9f #0 PREEMPTHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025Workqueue: hci0 hci_rx_workCall trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:501 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 print_report+0x58/0x84 mm/kasan/report.c:524 kasan_report+0xb0/0x110 mm/kasan/report.c:634 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:189 __kasan_check_write+0x20/0x30 mm/kasan/shadow.c:37 instrument_atomic_write include/linux/instrumented.h:82 [inline] clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline] l2cap_sock_resume_cb+0xb4/0x17c net/bluetooth/l2cap_sock.c:1711 l2cap_security_cfm+0x524/0xea0 net/bluetooth/l2cap_core.c:7357 hci_auth_cfm include/net/bluetooth/hci_core.h:2092 [inline] hci_auth_complete_evt+0x2e8/0xa4c net/bluetooth/hci_event.c:3514 hci_event_func net/bluetooth/hci_event.c:7511 [inline] hci_event_packet+0x650/0xe9c net/bluetooth/hci_event.c:7565 hci_rx_work+0x320/0xb18 net/bluetooth/hci_core.c:4070 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3402 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847
 漏洞公开时间：2025-07-28 20:15:29
 漏洞创建时间：2025-07-28 20:32:14
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-38473
<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/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0 |  |
|  | https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  |
|  | https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec |  |
|  | https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08 |  |
|  | https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96 |  |
|  | https://lore.kernel.org/linux-cve-announce/2025072812-CVE-2025-38473-e8bb@gregkh/T/#u |  |
|  | https://security-tracker.debian.org/tracker/CVE-2025-38473 |  |
|  | https://ubuntu.com/security/CVE-2025-38473 |  |
|  | https://www.cve.org/CVERecord?id=CVE-2025-38473 |  |
|  | https://git.kernel.org/linus/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  |
|  | https://access.redhat.com/security/cve/cve-2025-38473 |  |
|  | https://www.cve.org/CVERecord?id=CVE-2025-38473 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-38473 |  |
|  | https://lore.kernel.org/linux-cve-announce/2025072812-CVE-2025-38473-e8bb@gregkh/T |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2383915 |  |
|  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  |
|  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  |
|  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  |
|  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  |
|  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  |
|  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  |
|  | https://www.suse.com/security/cve/CVE-2025-38473.html |  |
|  | https://bugzilla.suse.com/1247289 |  |
|  | https://git.kernel.org/stable/c/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0 |  |
|  | https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  |
|  | https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec |  |
|  | https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08 |  |
|  | https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96 |  |
|  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  |
|  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  |
|  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  |
|  | https://www.suse.com/security/cve/CVE-2025-38473.html |  |
|  | https://bugzilla.suse.com/1247289 |  |
|  | https://git.kernel.org/stable/c/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0 |  |
|  | https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  |
|  | https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec |  |
|  | https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08 |  |
|  | https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96 |  |
|  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  |
|  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  |
|  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  |
|  | https://www.suse.com/security/cve/CVE-2025-38473.html |  |
|  | https://bugzilla.suse.com/1247289 |  |
|  | https://git.kernel.org/stable/c/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0 |  |
|  | https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  |
|  | https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec |  |
|  | https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08 |  |
|  | https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96 |  |
|  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  |
|  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  |
|  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  |
|  | https://www.suse.com/security/cve/CVE-2025-38473.html |  |
|  | https://bugzilla.suse.com/1247289 |  |
|  | https://git.kernel.org/stable/c/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0 |  |
|  | https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  |
|  | https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec |  |
|  | https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08 |  |
|  | https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96 |  |
|  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  |
|  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  |
|  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  |
|  | https://www.suse.com/security/cve/CVE-2025-38473.html |  |
|  | https://bugzilla.suse.com/1247289 |  |
|  | https://git.kernel.org/stable/c/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0 |  |
|  | https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  |
|  | https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec |  |
|  | https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08 |  |
|  | https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96 |  |
|  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  |
|  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  |
|  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  |
|  | https://www.suse.com/security/cve/CVE-2025-38473.html |  |
|  | https://bugzilla.suse.com/1247289 |  |
|  | https://git.kernel.org/stable/c/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0 |  |
|  | https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  |
|  | https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec |  |
|  | https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08 |  |
|  | https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96 |  |
|  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  |
|  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  |
|  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  |
|  | https://www.suse.com/security/cve/CVE-2025-38473.html |  |
|  | https://bugzilla.suse.com/1247289 |  |
|  | https://git.kernel.org/stable/c/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0 |  |
|  | https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  |
|  | https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec |  |
|  | https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08 |  |
|  | https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96 |  |
|  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  |
|  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  |
|  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  |
|  | https://www.suse.com/security/cve/CVE-2025-38473.html |  |
|  | https://bugzilla.suse.com/1247289 |  |
|  | https://git.kernel.org/stable/c/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0 |  |
|  | https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  |
|  | https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec |  |
|  | https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08 |  |
|  | https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96 |  |
|  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  |
|  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  |

</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://github.com/gregkh/linux/commit/a0075accbf0d76c2dad1ad3993d2e944505d99a0.patch |  | ljqc |
|  |  | https://git.kernel.org/stable/c/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0 |  | nvd |
|  |  | https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  | nvd |
|  |  | https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec |  | nvd |
|  |  | https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08 |  | nvd |
|  |  | https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96 |  | nvd |
|  |  | https://git.kernel.org/linus/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  | osv |
|  |  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  | cvelistv5 |
|  |  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  | cvelistv5 |
|  |  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  | cvelistv5 |
|  |  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  | nvd |
|  |  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  | nvd |
|  |  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  | nvd |
|  |  | https://git.kernel.org/stable/c/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0 |  | snyk |
|  |  | https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0 |  | snyk |
|  |  | https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec |  | snyk |
|  |  | https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08 |  | snyk |
|  |  | https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96 |  | snyk |
|  |  | https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c |  | snyk |
|  |  | https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05 |  | snyk |
|  |  | https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33 |  | snyk |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  In the Linux kernel, the following vulnerability has been resolved:Bluetooth: Fix null-ptr-deref in l2cap_sock_resume_cb()syzbot reported null-ptr-deref in l2cap_sock_resume_cb(). [0]l2cap_sock_resume_cb() has a similar problem that was fixed by commit1bff51ea59a9 (&#34;Bluetooth: fix use-after-free error in lock_sock_nested()&#34;).Since both l2cap_sock_kill() and l2cap_sock_resume_cb() are executedunder l2cap_sock_resume_cb(), we can avoid the issue simply by checkingif chan-&gt;data is NULL.Let&#39;s not access to the killed socket in l2cap_sock_resume_cb().[0]:BUG: KASAN: null-ptr-deref in instrument_atomic_write include/linux/instrumented.h:82 [inline]BUG: KASAN: null-ptr-deref in clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]BUG: KASAN: null-ptr-deref in l2cap_sock_resume_cb+0xb4/0x17c net/bluetooth/l2cap_sock.c:1711Write of size 8 at addr 0000000000000570 by task kworker/u9:0/52CPU: 1 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted 6.16.0-rc4-syzkaller-g7482bb149b9f #0 PREEMPTHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025Workqueue: hci0 hci_rx_workCall trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:501 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 print_report+0x58/0x84 mm/kasan/report.c:524 kasan_report+0xb0/0x110 mm/kasan/report.c:634 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:189 __kasan_check_write+0x20/0x30 mm/kasan/shadow.c:37 instrument_atomic_write include/linux/instrumented.h:82 [inline] clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline] l2cap_sock_resume_cb+0xb4/0x17c net/bluetooth/l2cap_sock.c:1711 l2cap_security_cfm+0x524/0xea0 net/bluetooth/l2cap_core.c:7357 hci_auth_cfm include/net/bluetooth/hci_core.h:2092 [inline] hci_auth_complete_evt+0x2e8/0xa4c net/bluetooth/hci_event.c:3514 hci_event_func net/bluetooth/hci_event.c:7511 [inline] hci_event_packet+0x650/0xe9c net/bluetooth/hci_event.c:7565 hci_rx_work+0x320/0xb18 net/bluetooth/hci_core.c:4070 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3402 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847The Linux kernel CVE team has assigned CVE-2025-38473 to this issue.
 openEuler评分：
  4.7
 Vector：CVSS：3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP4(4.19.90):受影响
2.openEuler-22.03-LTS-SP3(5.10.0):受影响
3.openEuler-22.03-LTS-SP4(5.10.0):受影响
4.openEuler-24.03-LTS:受影响
5.openEuler-24.03-LTS-SP1:受影响
6.openEuler-24.03-LTS-SP2:受影响
7.master(6.12.33):不受影响
8.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
  1.master(6.12.33):否
2.openEuler-20.03-LTS-SP4(4.19.90):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.openEuler-22.03-LTS-SP4(5.10.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
8.openEuler-24.03-LTS-SP2:否

原因说明：
  1.openEuler-24.03-LTS:正常修复
2.openEuler-24.03-LTS-SP1:正常修复
3.openEuler-24.03-LTS-SP2:正常修复
4.openEuler-20.03-LTS-SP4(4.19.90):不修复-超出修复范围
5.openEuler-22.03-LTS-SP3(5.10.0):不修复-超出修复范围
6.openEuler-22.03-LTS-SP4(5.10.0):不修复-超出修复范围
7.master(6.12.33):不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-2056

src-openEuler/kernel
关闭

内容风险标识

评论 (7)

src-openEuler/kernel关闭 .gitee-modal { width: 500px !important; }

内容风险标识

CVE-2025-38473

评论 (7)

搜索帮助

src-openEuler/kernel
关闭