{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2024-47687", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa/mlx5: Fix invalid mr resource destroy\n\nCertain error paths from mlx5_vdpa_dev_add() can end up releasing mr\nresources which never got initialized in the first place.\n\nThis patch adds the missing check in mlx5_vdpa_destroy_mr_resources()\nto block releasing non-initialized mr resources.\n\nReference trace:\n\n mlx5_core 0000:08:00.2: mlx5_vdpa_dev_add:3274:(pid 2700) warning: No mac address provisioned?\n BUG: kernel NULL pointer dereference, address: 0000000000000000\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 140216067 P4D 0\n Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 8 PID: 2700 Comm: vdpa Kdump: loaded Not tainted 5.14.0-496.el9.x86_64 #1\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:vhost_iotlb_del_range+0xf/0xe0 [vhost_iotlb]\n Code: [...]\n RSP: 0018:ff1c823ac23077f0 EFLAGS: 00010246\n RAX: ffffffffc1a21a60 RBX: ffffffff899567a0 RCX: 0000000000000000\n RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000000000000\n RBP: ff1bda1f7c21e800 R08: 0000000000000000 R09: ff1c823ac2307670\n R10: ff1c823ac2307668 R11: ffffffff8a9e7b68 R12: 0000000000000000\n R13: 0000000000000000 R14: ff1bda1f43e341a0 R15: 00000000ffffffea\n FS: 00007f56eba7c740(0000) GS:ff1bda269f800000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000000000000 CR3: 0000000104d90001 CR4: 0000000000771ef0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n PKRU: 55555554\n Call Trace:\n\n ? show_trace_log_lvl+0x1c4/0x2df\n ? show_trace_log_lvl+0x1c4/0x2df\n ? mlx5_vdpa_free+0x3d/0x150 [mlx5_vdpa]\n ? __die_body.cold+0x8/0xd\n ? page_fault_oops+0x134/0x170\n ? __irq_work_queue_local+0x2b/0xc0\n ? irq_work_queue+0x2c/0x50\n ? exc_page_fault+0x62/0x150\n ? asm_exc_page_fault+0x22/0x30\n ? __pfx_mlx5_vdpa_free+0x10/0x10 [mlx5_vdpa]\n ? vhost_iotlb_del_range+0xf/0xe0 [vhost_iotlb]\n mlx5_vdpa_free+0x3d/0x150 [mlx5_vdpa]\n vdpa_release_dev+0x1e/0x50 [vdpa]\n device_release+0x31/0x90\n kobject_cleanup+0x37/0x130\n mlx5_vdpa_dev_add+0x2d2/0x7a0 [mlx5_vdpa]\n vdpa_nl_cmd_dev_add_set_doit+0x277/0x4c0 [vdpa]\n genl_family_rcv_msg_doit+0xd9/0x130\n genl_family_rcv_msg+0x14d/0x220\n ? __pfx_vdpa_nl_cmd_dev_add_set_doit+0x10/0x10 [vdpa]\n ? _copy_to_user+0x1a/0x30\n ? move_addr_to_user+0x4b/0xe0\n genl_rcv_msg+0x47/0xa0\n ? __import_iovec+0x46/0x150\n ? __pfx_genl_rcv_msg+0x10/0x10\n netlink_rcv_skb+0x54/0x100\n genl_rcv+0x24/0x40\n netlink_unicast+0x245/0x370\n netlink_sendmsg+0x206/0x440\n __sys_sendto+0x1dc/0x1f0\n ? do_read_fault+0x10c/0x1d0\n ? do_pte_missing+0x10d/0x190\n __x64_sys_sendto+0x20/0x30\n do_syscall_64+0x5c/0xf0\n ? __count_memcg_events+0x4f/0xb0\n ? mm_account_fault+0x6c/0x100\n ? handle_mm_fault+0x116/0x270\n ? do_user_addr_fault+0x1d6/0x6a0\n ? do_syscall_64+0x6b/0xf0\n ? clear_bhb_loop+0x25/0x80\n ? clear_bhb_loop+0x25/0x80\n ? clear_bhb_loop+0x25/0x80\n ? clear_bhb_loop+0x25/0x80\n ? clear_bhb_loop+0x25/0x80\n entry_SYSCALL_64_after_hwframe+0x78/0x80" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux", "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "<", "version_name": "512c0cdd80c1", "version_value": "b6fbb1c7801f" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "6.7", "status": "affected" }, { "version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "custom" }, { "version": "6.10.13", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.11.2", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.12-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/b6fbb1c7801f46a0e5461c02904eab0d7535c790", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/b6fbb1c7801f46a0e5461c02904eab0d7535c790" }, { "url": "https://git.kernel.org/stable/c/5fe351def237df1ad29aa8af574350bc5340b4cf", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/5fe351def237df1ad29aa8af574350bc5340b4cf" }, { "url": "https://git.kernel.org/stable/c/dc12502905b7a3de9097ea6b98870470c2921e09", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/dc12502905b7a3de9097ea6b98870470c2921e09" } ] }, "generator": { "engine": "bippy-c9c4e1df01b2" } }