{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-21732", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.756Z", "datePublished": "2025-02-27T02:12:10.626Z", "dateUpdated": "2026-05-11T21:05:21.790Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:05:21.790Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix a race for an ODP MR which leads to CQE with error\n\nThis patch addresses a race condition for an ODP MR that can result in a\nCQE with an error on the UMR QP.\n\nDuring the __mlx5_ib_dereg_mr() flow, the following sequence of calls\noccurs:\n\nmlx5_revoke_mr()\n mlx5r_umr_revoke_mr()\n mlx5r_umr_post_send_wait()\n\nAt this point, the lkey is freed from the hardware's perspective.\n\nHowever, concurrently, mlx5_ib_invalidate_range() might be triggered by\nanother task attempting to invalidate a range for the same freed lkey.\n\nThis task will:\n - Acquire the umem_odp->umem_mutex lock.\n - Call mlx5r_umr_update_xlt() on the UMR QP.\n - Since the lkey has already been freed, this can lead to a CQE error,\n causing the UMR QP to enter an error state [1].\n\nTo resolve this race condition, the umem_odp->umem_mutex lock is now also\nacquired as part of the mlx5_revoke_mr() scope. Upon successful revoke,\nwe set umem_odp->private which points to that MR to NULL, preventing any\nfurther invalidation attempts on its lkey.\n\n[1] From dmesg:\n\n infiniband rocep8s0f0: dump_cqe:277:(pid 0): WC error: 6, Message: memory bind operation error\n cqe_dump: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n cqe_dump: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n cqe_dump: 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n cqe_dump: 00000030: 00 00 00 00 08 00 78 06 25 00 11 b9 00 0e dd d2\n\n WARNING: CPU: 15 PID: 1506 at drivers/infiniband/hw/mlx5/umr.c:394 mlx5r_umr_post_send_wait+0x15a/0x2b0 [mlx5_ib]\n 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\n CPU: 15 UID: 0 PID: 1506 Comm: ibv_rc_pingpong Not tainted 6.12.0-rc7+ #1626\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:mlx5r_umr_post_send_wait+0x15a/0x2b0 [mlx5_ib]\n [..]\n Call Trace:\n \n mlx5r_umr_update_xlt+0x23c/0x3e0 [mlx5_ib]\n mlx5_ib_invalidate_range+0x2e1/0x330 [mlx5_ib]\n __mmu_notifier_invalidate_range_start+0x1e1/0x240\n zap_page_range_single+0xf1/0x1a0\n madvise_vma_behavior+0x677/0x6e0\n do_madvise+0x1a2/0x4b0\n __x64_sys_madvise+0x25/0x30\n do_syscall_64+0x6b/0x140\n entry_SYSCALL_64_after_hwframe+0x76/0x7e" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/infiniband/hw/mlx5/mr.c", "drivers/infiniband/hw/mlx5/odp.c" ], "versions": [ { "version": "e6fb246ccafbdfc86e0750af021628132fdbceac", "lessThan": "b13d32786acabf70a7b04ed24b7468fc3c82977c", "status": "affected", "versionType": "git" }, { "version": "e6fb246ccafbdfc86e0750af021628132fdbceac", "lessThan": "5297f5ddffef47b94172ab0d3d62270002a3dcc1", "status": "affected", "versionType": "git" }, { "version": "e6fb246ccafbdfc86e0750af021628132fdbceac", "lessThan": "abb604a1a9c87255c7a6f3b784410a9707baf467", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/infiniband/hw/mlx5/mr.c", "drivers/infiniband/hw/mlx5/odp.c" ], "versions": [ { "version": "5.13", "status": "affected" }, { "version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.14", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13.3", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.14", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.12.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.13.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.14" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/b13d32786acabf70a7b04ed24b7468fc3c82977c" }, { "url": "https://git.kernel.org/stable/c/5297f5ddffef47b94172ab0d3d62270002a3dcc1" }, { "url": "https://git.kernel.org/stable/c/abb604a1a9c87255c7a6f3b784410a9707baf467" } ], "title": "RDMA/mlx5: Fix a race for an ODP MR which leads to CQE with error", "x_generator": { "engine": "bippy-1.2.0" } } } }