{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2025-21732", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-21732", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-02-27T02:12:10.626Z", "updatedAt": "2026-05-11T21:05:21.790Z", "importedAt": "2026-10-24T01:57:29.455Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "RDMA/mlx5: Fix a race for an ODP MR which leads to CQE with error", "summary": "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": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "e6fb246ccafbdfc86e0750af021628132fdbceac", "status": "affected", "versionType": "git", "lessThan": "b13d32786acabf70a7b04ed24b7468fc3c82977c" }, { "version": "e6fb246ccafbdfc86e0750af021628132fdbceac", "status": "affected", "versionType": "git", "lessThan": "5297f5ddffef47b94172ab0d3d62270002a3dcc1" }, { "version": "e6fb246ccafbdfc86e0750af021628132fdbceac", "status": "affected", "versionType": "git", "lessThan": "abb604a1a9c87255c7a6f3b784410a9707baf467" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.13", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.13" }, { "version": "6.12.14", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.13.3", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.13.*" }, { "version": "6.14", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }