ghsa-pw6x-j3q8-6phw
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
vdpa/mlx5: Fix invalid mr resource destroy
Certain error paths from mlx5_vdpa_dev_add() can end up releasing mr resources which never got initialized in the first place.
This patch adds the missing check in mlx5_vdpa_destroy_mr_resources() to block releasing non-initialized mr resources.
Reference trace:
mlx5_core 0000:08:00.2: mlx5_vdpa_dev_add:3274:(pid 2700) warning: No mac address provisioned? BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 140216067 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 8 PID: 2700 Comm: vdpa Kdump: loaded Not tainted 5.14.0-496.el9.x86_64 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:vhost_iotlb_del_range+0xf/0xe0 [vhost_iotlb] Code: [...] RSP: 0018:ff1c823ac23077f0 EFLAGS: 00010246 RAX: ffffffffc1a21a60 RBX: ffffffff899567a0 RCX: 0000000000000000 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000000000000 RBP: ff1bda1f7c21e800 R08: 0000000000000000 R09: ff1c823ac2307670 R10: ff1c823ac2307668 R11: ffffffff8a9e7b68 R12: 0000000000000000 R13: 0000000000000000 R14: ff1bda1f43e341a0 R15: 00000000ffffffea FS: 00007f56eba7c740(0000) GS:ff1bda269f800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000104d90001 CR4: 0000000000771ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace:
? show_trace_log_lvl+0x1c4/0x2df ? show_trace_log_lvl+0x1c4/0x2df ? mlx5_vdpa_free+0x3d/0x150 [mlx5_vdpa] ? __die_body.cold+0x8/0xd ? page_fault_oops+0x134/0x170 ? __irq_work_queue_local+0x2b/0xc0 ? irq_work_queue+0x2c/0x50 ? exc_page_fault+0x62/0x150 ? asm_exc_page_fault+0x22/0x30 ? __pfx_mlx5_vdpa_free+0x10/0x10 [mlx5_vdpa] ? vhost_iotlb_del_range+0xf/0xe0 [vhost_iotlb] mlx5_vdpa_free+0x3d/0x150 [mlx5_vdpa] vdpa_release_dev+0x1e/0x50 [vdpa] device_release+0x31/0x90 kobject_cleanup+0x37/0x130 mlx5_vdpa_dev_add+0x2d2/0x7a0 [mlx5_vdpa] vdpa_nl_cmd_dev_add_set_doit+0x277/0x4c0 [vdpa] genl_family_rcv_msg_doit+0xd9/0x130 genl_family_rcv_msg+0x14d/0x220 ? __pfx_vdpa_nl_cmd_dev_add_set_doit+0x10/0x10 [vdpa] ? _copy_to_user+0x1a/0x30 ? move_addr_to_user+0x4b/0xe0 genl_rcv_msg+0x47/0xa0 ? __import_iovec+0x46/0x150 ? __pfx_genl_rcv_msg+0x10/0x10 netlink_rcv_skb+0x54/0x100 genl_rcv+0x24/0x40 netlink_unicast+0x245/0x370 netlink_sendmsg+0x206/0x440 __sys_sendto+0x1dc/0x1f0 ? do_read_fault+0x10c/0x1d0 ? do_pte_missing+0x10d/0x190 __x64_sys_sendto+0x20/0x30 do_syscall_64+0x5c/0xf0 ? __count_memcg_events+0x4f/0xb0 ? mm_account_fault+0x6c/0x100 ? handle_mm_fault+0x116/0x270 ? do_user_addr_fault+0x1d6/0x6a0 ? do_syscall_64+0x6b/0xf0 ? clear_bhb_loop+0x25/0x80 ? clear_bhb_loop+0x25/0x80 ? clear_bhb_loop+0x25/0x80 ? clear_bhb_loop+0x25/0x80 ? clear_bhb_loop+0x25/0x80 entry_SYSCALL_64_after_hwframe+0x78/0x80
{
"affected": [],
"aliases": [
"CVE-2024-47687"
],
"database_specific": {
"cwe_ids": [
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T12:15:05Z",
"severity": "MODERATE"
},
"details": "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",
"id": "GHSA-pw6x-j3q8-6phw",
"modified": "2024-10-23T15:31:03Z",
"published": "2024-10-21T12:30:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47687"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5fe351def237df1ad29aa8af574350bc5340b4cf"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b6fbb1c7801f46a0e5461c02904eab0d7535c790"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/dc12502905b7a3de9097ea6b98870470c2921e09"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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