cbcvebase.
CVE-2024-47687
published 2024-10-21

CVE-2024-47687: 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…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
14.5th percentile
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_io

Affected

11 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.11.2-1 (forky)linux 6.11.2-1 (forky)
linuxlinux
linuxlinux>= 512c0cdd80c19ec11f6dbe769d5899dcfefcd5c9 < b6fbb1c7801f46a0e5461c02904eab0d7535c790b6fbb1c7801f46a0e5461c02904eab0d7535c790
linuxlinux>= 512c0cdd80c19ec11f6dbe769d5899dcfefcd5c9 < 5fe351def237df1ad29aa8af574350bc5340b4cf5fe351def237df1ad29aa8af574350bc5340b4cf
linuxlinux>= 512c0cdd80c19ec11f6dbe769d5899dcfefcd5c9 < dc12502905b7a3de9097ea6b98870470c2921e09dc12502905b7a3de9097ea6b98870470c2921e09
linuxlinux_kernel>= 0 < 6.11.2-16.11.2-1
linuxlinux_kernel>= 0 < 6.11.2-16.11.2-1
linuxlinux_kernel>= 0 < 6.8.0-54.566.8.0-54.56
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 6.11 < 6.11.26.11.2
linuxlinux_kernel>= 6.7 < 6.10.136.10.13

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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