CVE-2024-47687

一、漏洞信息
 漏洞编号：[CVE-2024-47687](https://nvd.nist.gov/vuln/detail/CVE-2024-47687)
 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：5.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:vdpa/mlx5: Fix invalid mr resource destroyCertain error paths from mlx5_vdpa_dev_add() can end up releasing mrresources which never got initialized in the first place.This patch adds the missing check in mlx5_vdpa_destroy_mr_resources()to block releasing non-initialized mr resources.Reference trace:  mlx5_core 0000:08:00.2: mlx5_vdpa_dev_add:3274:(pid 2700) warning: No mac address provisioned?  BUG: kernel NULL pointer dereference, address: 0000000000000000  #PF: supervisor read access in kernel mode  #PF: error_code(0x0000) - not-present page  PGD 140216067 P4D 0  Oops: 0000 [#1] PREEMPT SMP NOPTI  CPU: 8 PID: 2700 Comm: vdpa Kdump: loaded Not tainted 5.14.0-496.el9.x86_64 #1  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014  RIP: 0010:vhost_iotlb_del_range+0xf/0xe0 [vhost_iotlb]  Code: [...]  RSP: 0018:ff1c823ac23077f0 EFLAGS: 00010246  RAX: ffffffffc1a21a60 RBX: ffffffff899567a0 RCX: 0000000000000000  RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000000000000  RBP: ff1bda1f7c21e800 R08: 0000000000000000 R09: ff1c823ac2307670  R10: ff1c823ac2307668 R11: ffffffff8a9e7b68 R12: 0000000000000000  R13: 0000000000000000 R14: ff1bda1f43e341a0 R15: 00000000ffffffea  FS:  00007f56eba7c740(0000) GS:ff1bda269f800000(0000) knlGS:0000000000000000  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033  CR2: 0000000000000000 CR3: 0000000104d90001 CR4: 0000000000771ef0  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400  PKRU: 55555554  Call Trace:   ? show_trace_log_lvl+0x1c4/0x2df   ? show_trace_log_lvl+0x1c4/0x2df   ? mlx5_vdpa_free+0x3d/0x150 [mlx5_vdpa]   ? __die_body.cold+0x8/0xd   ? page_fault_oops+0x134/0x170   ? __irq_work_queue_local+0x2b/0xc0   ? irq_work_queue+0x2c/0x50   ? exc_page_fault+0x62/0x150   ? asm_exc_page_fault+0x22/0x30   ? __pfx_mlx5_vdpa_free+0x10/0x10 [mlx5_vdpa]   ? vhost_iotlb_del_range+0xf/0xe0 [vhost_iotlb]   mlx5_vdpa_free+0x3d/0x150 [mlx5_vdpa]   vdpa_release_dev+0x1e/0x50 [vdpa]   device_release+0x31/0x90   kobject_cleanup+0x37/0x130   mlx5_vdpa_dev_add+0x2d2/0x7a0 [mlx5_vdpa]   vdpa_nl_cmd_dev_add_set_doit+0x277/0x4c0 [vdpa]   genl_family_rcv_msg_doit+0xd9/0x130   genl_family_rcv_msg+0x14d/0x220   ? __pfx_vdpa_nl_cmd_dev_add_set_doit+0x10/0x10 [vdpa]   ? _copy_to_user+0x1a/0x30   ? move_addr_to_user+0x4b/0xe0   genl_rcv_msg+0x47/0xa0   ? __import_iovec+0x46/0x150   ? __pfx_genl_rcv_msg+0x10/0x10   netlink_rcv_skb+0x54/0x100   genl_rcv+0x24/0x40   netlink_unicast+0x245/0x370   netlink_sendmsg+0x206/0x440   __sys_sendto+0x1dc/0x1f0   ? do_read_fault+0x10c/0x1d0   ? do_pte_missing+0x10d/0x190   __x64_sys_sendto+0x20/0x30   do_syscall_64+0x5c/0xf0   ? __count_memcg_events+0x4f/0xb0   ? mm_account_fault+0x6c/0x100   ? handle_mm_fault+0x116/0x270   ? do_user_addr_fault+0x1d6/0x6a0   ? do_syscall_64+0x6b/0xf0   ? clear_bhb_loop+0x25/0x80   ? clear_bhb_loop+0x25/0x80   ? clear_bhb_loop+0x25/0x80   ? clear_bhb_loop+0x25/0x80   ? clear_bhb_loop+0x25/0x80   entry_SYSCALL_64_after_hwframe+0x78/0x80
 漏洞公开时间：2024-10-21 20:15:05
 漏洞创建时间：2024-10-21 20:43:32
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-47687
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/5fe351def237df1ad29aa8af574350bc5340b4cf |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/b6fbb1c7801f46a0e5461c02904eab0d7535c790 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/dc12502905b7a3de9097ea6b98870470c2921e09 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-47687 | https://bugzilla.suse.com/show_bug.cgi?id=1232003 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-47687.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1232003 |
| suse_bugzilla | https://git.kernel.org/stable/c/b6fbb1c7801f46a0e5461c02904eab0d7535c790 | https://bugzilla.suse.com/show_bug.cgi?id=1232003 |
| suse_bugzilla | https://git.kernel.org/stable/c/5fe351def237df1ad29aa8af574350bc5340b4cf | https://bugzilla.suse.com/show_bug.cgi?id=1232003 |
| suse_bugzilla | https://git.kernel.org/stable/c/dc12502905b7a3de9097ea6b98870470c2921e09 | https://bugzilla.suse.com/show_bug.cgi?id=1232003 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-47687 | https://bugzilla.suse.com/show_bug.cgi?id=1232003 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2320214 | https://bugzilla.suse.com/show_bug.cgi?id=1232003 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024102109-CVE-2024-47687-9a03@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2320214 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-47687 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2024-47687 |

</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:
  openBrain开源漏洞感知系统
 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  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.kernel.org/stable/c/5fe351def237df1ad29aa8af574350bc5340b4cf |  | nvd |
|  |  | https://git.kernel.org/stable/c/b6fbb1c7801f46a0e5461c02904eab0d7535c790 |  | nvd |
|  |  | https://git.kernel.org/stable/c/dc12502905b7a3de9097ea6b98870470c2921e09 |  | nvd |
| linux_kernel | 6.10.13 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b6fbb1c7801fIssue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=512c0cdd80c1 | linuxkernelcves |
| linux_kernel | 6.11.2 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5fe351def237Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=512c0cdd80c1 | linuxkernelcves |
| linux_kernel | 6.12-rc1 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=dc12502905b7Please | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=512c0cdd80c1 | linuxkernelcves |

</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:vdpa/mlx5: Fix invalid mr resource destroyCertain error paths from mlx5_vdpa_dev_add() can end up releasing mrresources which never got initialized in the first place.This patch adds the missing check in mlx5_vdpa_destroy_mr_resources()to block releasing non-initialized mr resources.Reference trace:  mlx5_core 0000:08:00.2: mlx5_vdpa_dev_add:3274:(pid 2700) warning: No mac address provisioned?  BUG: kernel NULL pointer dereference, address: 0000000000000000  #PF: supervisor read access in kernel mode  #PF: error_code(0x0000) - not-present page  PGD 140216067 P4D 0  Oops: 0000 [#1] PREEMPT SMP NOPTI  CPU: 8 PID: 2700 Comm: vdpa Kdump: loaded Not tainted 5.14.0-496.el9.x86_64 #1  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014  RIP: 0010:vhost_iotlb_del_range+0xf/0xe0 [vhost_iotlb]  Code: [...]  RSP: 0018:ff1c823ac23077f0 EFLAGS: 00010246  RAX: ffffffffc1a21a60 RBX: ffffffff899567a0 RCX: 0000000000000000  RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000000000000  RBP: ff1bda1f7c21e800 R08: 0000000000000000 R09: ff1c823ac2307670  R10: ff1c823ac2307668 R11: ffffffff8a9e7b68 R12: 0000000000000000  R13: 0000000000000000 R14: ff1bda1f43e341a0 R15: 00000000ffffffea  FS:  00007f56eba7c740(0000) GS:ff1bda269f800000(0000) knlGS:0000000000000000  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033  CR2: 0000000000000000 CR3: 0000000104d90001 CR4: 0000000000771ef0  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400  PKRU: 55555554  Call Trace:   ? show_trace_log_lvl+0x1c4/0x2df   ? show_trace_log_lvl+0x1c4/0x2df   ? mlx5_vdpa_free+0x3d/0x150 [mlx5_vdpa]   ? __die_body.cold+0x8/0xd   ? page_fault_oops+0x134/0x170   ? __irq_work_queue_local+0x2b/0xc0   ? irq_work_queue+0x2c/0x50   ? exc_page_fault+0x62/0x150   ? asm_exc_page_fault+0x22/0x30   ? __pfx_mlx5_vdpa_free+0x10/0x10 [mlx5_vdpa]   ? vhost_iotlb_del_range+0xf/0xe0 [vhost_iotlb]   mlx5_vdpa_free+0x3d/0x150 [mlx5_vdpa]   vdpa_release_dev+0x1e/0x50 [vdpa]   device_release+0x31/0x90   kobject_cleanup+0x37/0x130   mlx5_vdpa_dev_add+0x2d2/0x7a0 [mlx5_vdpa]   vdpa_nl_cmd_dev_add_set_doit+0x277/0x4c0 [vdpa]   genl_family_rcv_msg_doit+0xd9/0x130   genl_family_rcv_msg+0x14d/0x220   ? __pfx_vdpa_nl_cmd_dev_add_set_doit+0x10/0x10 [vdpa]   ? _copy_to_user+0x1a/0x30   ? move_addr_to_user+0x4b/0xe0   genl_rcv_msg+0x47/0xa0   ? __import_iovec+0x46/0x150   ? __pfx_genl_rcv_msg+0x10/0x10   netlink_rcv_skb+0x54/0x100   genl_rcv+0x24/0x40   netlink_unicast+0x245/0x370   netlink_sendmsg+0x206/0x440   __sys_sendto+0x1dc/0x1f0   ? do_read_fault+0x10c/0x1d0   ? do_pte_missing+0x10d/0x190   __x64_sys_sendto+0x20/0x30   do_syscall_64+0x5c/0xf0   ? __count_memcg_events+0x4f/0xb0   ? mm_account_fault+0x6c/0x100   ? handle_mm_fault+0x116/0x270   ? do_user_addr_fault+0x1d6/0x6a0   ? do_syscall_64+0x6b/0xf0   ? clear_bhb_loop+0x25/0x80   ? clear_bhb_loop+0x25/0x80   ? clear_bhb_loop+0x25/0x80   ? clear_bhb_loop+0x25/0x80   ? clear_bhb_loop+0x25/0x80   entry_SYSCALL_64_after_hwframe+0x78/0x80
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:L/AC:L/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):不受影响
2.openEuler-22.03-LTS-SP1(5.10.0):不受影响
3.openEuler-22.03-LTS-SP3(5.10.0):不受影响
4.openEuler-22.03-LTS-SP4(5.10.0):不受影响
5.master(6.6.0):不受影响
6.openEuler-24.03-LTS(6.6.0):不受影响
7.openEuler-24.03-LTS-Next(6.6.0):不受影响
8.openEuler-24.03-LTS-SP1(6.6.0):不受影响

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

原因说明：
  1.openEuler-20.03-LTS-SP4(4.19.90):不受影响-漏洞代码不存在
2.openEuler-22.03-LTS-SP1(5.10.0):不受影响-漏洞代码不存在
3.openEuler-22.03-LTS-SP3(5.10.0):不受影响-漏洞代码不存在
4.openEuler-22.03-LTS-SP4(5.10.0):不受影响-漏洞代码不存在
5.master(6.6.0):不受影响-漏洞代码不存在
6.openEuler-24.03-LTS(6.6.0):不受影响-漏洞代码不存在
7.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不存在
8.openEuler-24.03-LTS-SP1(6.6.0):不受影响-漏洞代码不存在

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