CVE-2025-21732

一、漏洞信息
 漏洞编号：[CVE-2025-21732](https://nvd.nist.gov/vuln/detail/CVE-2025-21732)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.1.8,6.4.0,6.6.0
 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:RDMA/mlx5: Fix a race for an ODP MR which leads to CQE with errorThis patch addresses a race condition for an ODP MR that can result in aCQE with an error on the UMR QP.During the __mlx5_ib_dereg_mr() flow, the following sequence of callsoccurs:mlx5_revoke_mr() mlx5r_umr_revoke_mr() mlx5r_umr_post_send_wait()At this point, the lkey is freed from the hardware s perspective.However, concurrently, mlx5_ib_invalidate_range() might be triggered byanother task attempting to invalidate a range for the same freed lkey.This task will: - Acquire the umem_odp->umem_mutex lock. - Call mlx5r_umr_update_xlt() on the UMR QP. - Since the lkey has already been freed, this can lead to a CQE error,   causing the UMR QP to enter an error state [1].To resolve this race condition, the umem_odp->umem_mutex lock is now alsoacquired as part of the mlx5_revoke_mr() scope.  Upon successful revoke,we set umem_odp->private which points to that MR to NULL, preventing anyfurther invalidation attempts on its lkey.[1] From dmesg:   infiniband rocep8s0f0: dump_cqe:277:(pid 0): WC error: 6, Message: memory bind operation error   cqe_dump: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   cqe_dump: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   cqe_dump: 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   cqe_dump: 00000030: 00 00 00 00 08 00 78 06 25 00 11 b9 00 0e dd d2   WARNING: CPU: 15 PID: 1506 at drivers/infiniband/hw/mlx5/umr.c:394 mlx5r_umr_post_send_wait+0x15a/0x2b0 [mlx5_ib]   Modules linked in: ip6table_mangle ip6table_natip6table_filter ip6_tables iptable_mangle xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_umad ib_ipoib ib_cm mlx5_ib ib_uverbs ib_core fuse mlx5_core   CPU: 15 UID: 0 PID: 1506 Comm: ibv_rc_pingpong Not tainted 6.12.0-rc7+ #1626   Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014   RIP: 0010:mlx5r_umr_post_send_wait+0x15a/0x2b0 [mlx5_ib]   [..]   Call Trace:   <TASK>   mlx5r_umr_update_xlt+0x23c/0x3e0 [mlx5_ib]   mlx5_ib_invalidate_range+0x2e1/0x330 [mlx5_ib]   __mmu_notifier_invalidate_range_start+0x1e1/0x240   zap_page_range_single+0xf1/0x1a0   madvise_vma_behavior+0x677/0x6e0   do_madvise+0x1a2/0x4b0   __x64_sys_madvise+0x25/0x30   do_syscall_64+0x6b/0x140   entry_SYSCALL_64_after_hwframe+0x76/0x7e
 漏洞公开时间：2025-02-27 11:15:13
 漏洞创建时间：2025-02-27 13:00:25
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-21732
<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/5297f5ddffef47b94172ab0d3d62270002a3dcc1 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/abb604a1a9c87255c7a6f3b784410a9707baf467 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/b13d32786acabf70a7b04ed24b7468fc3c82977c |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-21732 | https://bugzilla.suse.com/show_bug.cgi?id=1237877 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2025/CVE-2025-21732.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1237877 |
| suse_bugzilla | https://git.kernel.org/stable/c/b13d32786acabf70a7b04ed24b7468fc3c82977c | https://bugzilla.suse.com/show_bug.cgi?id=1237877 |
| suse_bugzilla | https://git.kernel.org/stable/c/5297f5ddffef47b94172ab0d3d62270002a3dcc1 | https://bugzilla.suse.com/show_bug.cgi?id=1237877 |
| suse_bugzilla | https://git.kernel.org/stable/c/abb604a1a9c87255c7a6f3b784410a9707baf467 | https://bugzilla.suse.com/show_bug.cgi?id=1237877 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2025-21732 | https://bugzilla.suse.com/show_bug.cgi?id=1237877 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2025022658-CVE-2025-21732-e800@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2348522 |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2025-21732 | https://explore.alas.aws.amazon.com/CVE-2025-21732.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21732 | https://explore.alas.aws.amazon.com/CVE-2025-21732.html |

</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  |
| ------- | -------- | ------- | -------- | --------- |
| linux_kernel | 6.12.14 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b13d32786acabf70a7b04ed24b7468fc3c82977cIssue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e6fb246ccafbdfc86e0750af021628132fdbceac | linuxkernelcves |
| linux_kernel | 6.13.3 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5297f5ddffef47b94172ab0d3d62270002a3dcc1Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e6fb246ccafbdfc86e0750af021628132fdbceac | linuxkernelcves |
| linux_kernel | 6.14-rc1 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=abb604a1a9c87255c7a6f3b784410a9707baf467Please | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e6fb246ccafbdfc86e0750af021628132fdbceac | 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:RDMA/mlx5: Fix a race for an ODP MR which leads to CQE with errorThis patch addresses a race condition for an ODP MR that can result in aCQE with an error on the UMR QP.During the __mlx5_ib_dereg_mr() flow, the following sequence of callsoccurs:mlx5_revoke_mr() mlx5r_umr_revoke_mr() mlx5r_umr_post_send_wait()At this point, the lkey is freed from the hardware&#39;s perspective.However, concurrently, mlx5_ib_invalidate_range() might be triggered byanother task attempting to invalidate a range for the same freed lkey.This task will: - Acquire the umem_odp-&gt;umem_mutex lock. - Call mlx5r_umr_update_xlt() on the UMR QP. - Since the lkey has already been freed, this can lead to a CQE error,   causing the UMR QP to enter an error state [1].To resolve this race condition, the umem_odp-&gt;umem_mutex lock is now alsoacquired as part of the mlx5_revoke_mr() scope.  Upon successful revoke,we set umem_odp-&gt;private which points to that MR to NULL, preventing anyfurther invalidation attempts on its lkey.[1] From dmesg:   infiniband rocep8s0f0: dump_cqe:277:(pid 0): WC error: 6, Message: memory bind operation error   cqe_dump: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   cqe_dump: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   cqe_dump: 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   cqe_dump: 00000030: 00 00 00 00 08 00 78 06 25 00 11 b9 00 0e dd d2   WARNING: CPU: 15 PID: 1506 at drivers/infiniband/hw/mlx5/umr.c:394 mlx5r_umr_post_send_wait+0x15a/0x2b0 [mlx5_ib]   Modules linked in: ip6table_mangle ip6table_natip6table_filter ip6_tables iptable_mangle xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_umad ib_ipoib ib_cm mlx5_ib ib_uverbs ib_core fuse mlx5_core   CPU: 15 UID: 0 PID: 1506 Comm: ibv_rc_pingpong Not tainted 6.12.0-rc7+ #1626   Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014   RIP: 0010:mlx5r_umr_post_send_wait+0x15a/0x2b0 [mlx5_ib]   [..]   Call Trace:   &lt;TASK&gt;   mlx5r_umr_update_xlt+0x23c/0x3e0 [mlx5_ib]   mlx5_ib_invalidate_range+0x2e1/0x330 [mlx5_ib]   __mmu_notifier_invalidate_range_start+0x1e1/0x240   zap_page_range_single+0xf1/0x1a0   madvise_vma_behavior+0x677/0x6e0   do_madvise+0x1a2/0x4b0   __x64_sys_madvise+0x25/0x30   do_syscall_64+0x6b/0x140   entry_SYSCALL_64_after_hwframe+0x76/0x7eThe Linux kernel CVE team has assigned CVE-2025-21732 to this issue.
 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-24.03-LTS:受影响
2.openEuler-24.03-LTS-SP1(6.6.0):受影响
3.master(6.6.0):不受影响
4.openEuler-20.03-LTS-SP4:不受影响
5.openEuler-22.03-LTS-SP3:不受影响
6.openEuler-22.03-LTS-SP4:不受影响
7.openEuler-24.03-LTS-Next:不受影响

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

原因说明：
  1.openEuler-24.03-LTS:正常修复
2.openEuler-24.03-LTS-SP1(6.6.0):正常修复
3.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
4.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
5.openEuler-20.03-LTS-SP4:不受影响-漏洞代码不存在
6.openEuler-22.03-LTS-SP3:不受影响-漏洞代码不存在
7.openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1286

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