{ "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-2025-21714", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-21714", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-02-27T02:07:25.570Z", "updatedAt": "2026-10-21T12:35:55.119Z", "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 implicit ODP use after free", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix implicit ODP use after free\n\nPrevent double queueing of implicit ODP mr destroy work by using\n__xa_cmpxchg() to make sure this is the only time we are destroying this\nspecific mr.\n\nWithout this change, we could try to invalidate this mr twice, which in\nturn could result in queuing a MR work destroy twice, and eventually the\nsecond work could execute after the MR was freed due to the first work,\ncausing a user after free and trace below.\n\n refcount_t: underflow; use-after-free.\n WARNING: CPU: 2 PID: 12178 at lib/refcount.c:28 refcount_warn_saturate+0x12b/0x130\n Modules linked in: bonding ib_ipoib vfio_pci ip_gre geneve nf_tables ip6_gre gre ip6_tunnel tunnel6 ipip tunnel4 ib_umad rdma_ucm mlx5_vfio_pci vfio_pci_core vfio_iommu_type1 mlx5_ib vfio ib_uverbs mlx5_core iptable_raw openvswitch nsh rpcrdma ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_cm ib_core xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay zram zsmalloc fuse [last unloaded: ib_uverbs]\n CPU: 2 PID: 12178 Comm: kworker/u20:5 Not tainted 6.5.0-rc1_net_next_mlx5_58c644e #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n Workqueue: events_unbound free_implicit_child_mr_work [mlx5_ib]\n RIP: 0010:refcount_warn_saturate+0x12b/0x130\n Code: 48 c7 c7 38 95 2a 82 c6 05 bc c6 fe 00 01 e8 0c 66 aa ff 0f 0b 5b c3 48 c7 c7 e0 94 2a 82 c6 05 a7 c6 fe 00 01 e8 f5 65 aa ff <0f> 0b 5b c3 90 8b 07 3d 00 00 00 c0 74 12 83 f8 01 74 13 8d 50 ff\n RSP: 0018:ffff8881008e3e40 EFLAGS: 00010286\n RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000027\n RDX: ffff88852c91b5c8 RSI: 0000000000000001 RDI: ffff88852c91b5c0\n RBP: ffff8881dacd4e00 R08: 00000000ffffffff R09: 0000000000000019\n R10: 000000000000072e R11: 0000000063666572 R12: ffff88812bfd9e00\n R13: ffff8881c792d200 R14: ffff88810011c005 R15: ffff8881002099c0\n FS: 0000000000000000(0000) GS:ffff88852c900000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f5694b5e000 CR3: 00000001153f6003 CR4: 0000000000370ea0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n \n ? refcount_warn_saturate+0x12b/0x130\n free_implicit_child_mr_work+0x180/0x1b0 [mlx5_ib]\n process_one_work+0x1cc/0x3c0\n worker_thread+0x218/0x3c0\n kthread+0xc6/0xf0\n ret_from_fork+0x1f/0x30\n ", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "5256edcb98a14b11409a2d323f56a70a8b366363", "status": "affected", "versionType": "git", "lessThan": "a306dfff6b76aafa264ad33874a8992a8d5858b7" }, { "version": "5256edcb98a14b11409a2d323f56a70a8b366363", "status": "affected", "versionType": "git", "lessThan": "7cc8f681f6d4ae4478ae0f60485fc768f2b450da" }, { "version": "5256edcb98a14b11409a2d323f56a70a8b366363", "status": "affected", "versionType": "git", "lessThan": "edfb65dbb9ffd3102f3ff4dd21316158e56f1976" }, { "version": "5256edcb98a14b11409a2d323f56a70a8b366363", "status": "affected", "versionType": "git", "lessThan": "d3d930411ce390e532470194296658a960887773" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.5", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.5" }, { "version": "6.6.160", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.13", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.13.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.13.*" }, { "version": "6.14", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }