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UBUNTU-CVE-2024-47687 Moderate

UBUNTU-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 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

Exploit probability Not scored
Published October 21, 2024
Required by Not available
Last source change April 22, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:20.04:LTS linux-oem-5.6

29 explicit affected versions

Ubuntu:22.04:LTS linux-riscv-6.5

10 explicit affected versions

Ubuntu:22.04:LTS linux-starfive-6.5

11 explicit affected versions

Ubuntu:22.04:LTS linux-aws-6.8

12 explicit affected versions

Ubuntu:Pro:Realtime:24.04:LTS linux-realtime

16 explicit affected versions

Ubuntu:22.04:LTS linux-realtime

1 explicit affected versions

Ubuntu:22.04:LTS linux-oracle-6.8

12 explicit affected versions

Ubuntu:20.04:LTS linux-intel-5.13

7 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.10

26 explicit affected versions

Ubuntu:18.04:LTS linux-gkeop-5.4

37 explicit affected versions

Ubuntu:22.04:LTS linux-hwe-6.8

10 explicit affected versions

Ubuntu:22.04:LTS linux-lowlatency-hwe-5.19

10 explicit affected versions

Ubuntu:22.04:LTS linux-aws-5.19

10 explicit affected versions

Ubuntu:20.04:LTS linux-aws-5.13

13 explicit affected versions

Ubuntu:22.04:LTS linux-azure-6.2

13 explicit affected versions

Ubuntu:24.04:LTS linux-gkeop

4 explicit affected versions

Ubuntu:18.04:LTS linux-gke-5.4

37 explicit affected versions

Ubuntu:22.04:LTS linux-nvidia-6.8

13 explicit affected versions

Ubuntu:22.04:LTS linux-riscv-5.19

8 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.8

4 explicit affected versions

Ubuntu:22.04:LTS linux-allwinner-5.19

8 explicit affected versions

Ubuntu:22.04:LTS linux-oem-6.5

19 explicit affected versions

Ubuntu:22.04:LTS linux-riscv

23 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.0

7 explicit affected versions

Ubuntu:22.04:LTS linux-lowlatency-hwe-6.2

10 explicit affected versions

Ubuntu:18.04:LTS linux-gke-4.15

33 explicit affected versions

Ubuntu:20.04:LTS linux-hwe-5.13

16 explicit affected versions

Ubuntu:22.04:LTS linux-oracle-6.5

13 explicit affected versions

Ubuntu:24.04:LTS linux-nvidia

14 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.13

12 explicit affected versions

Ubuntu:18.04:LTS linux-gcp

38 explicit affected versions

Ubuntu:20.04:LTS linux-gke

51 explicit affected versions

Ubuntu:20.04:LTS linux-riscv-5.11

13 explicit affected versions

Ubuntu:22.04:LTS linux-hwe-6.2

10 explicit affected versions

Ubuntu:24.04:LTS linux-oracle

17 explicit affected versions

Ubuntu:18.04:LTS linux-aws-5.3

10 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.13

13 explicit affected versions

Ubuntu:22.04:LTS linux-azure-6.8

11 explicit affected versions

Ubuntu:22.04:LTS linux-intel-iot-realtime

1 explicit affected versions

Ubuntu:20.04:LTS linux-riscv-5.8

10 explicit affected versions

Ubuntu:22.04:LTS linux-gcp-5.19

8 explicit affected versions

Ubuntu:24.04:LTS linux-oem-6.8

17 explicit affected versions

Ubuntu:22.04:LTS linux-hwe-6.5

13 explicit affected versions

Ubuntu:20.04:LTS linux-hwe-5.8

21 explicit affected versions

Ubuntu:20.04:LTS linux-raspi2

6 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-5.3

13 explicit affected versions

Ubuntu:22.04:LTS linux-gcp-6.2

12 explicit affected versions

Ubuntu:22.04:LTS linux-starfive-5.19

7 explicit affected versions

Ubuntu:22.04:LTS linux-azure-6.5

14 explicit affected versions

Ubuntu:24.04:LTS linux-azure

18 explicit affected versions

Ubuntu:24.04:LTS linux-nvidia-lowlatency

11 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.11

12 explicit affected versions

Ubuntu:24.04:LTS linux-riscv

17 explicit affected versions

Ubuntu:22.04:LTS linux-oem-5.17

26 explicit affected versions

Ubuntu:24.04:LTS linux-realtime

1 explicit affected versions

Ubuntu:24.04:LTS linux-aws

18 explicit affected versions

Ubuntu:16.04:LTS linux-hwe-edge

23 explicit affected versions

Ubuntu:24.04:LTS linux-oem-6.11

7 explicit affected versions

Ubuntu:22.04:LTS linux-aws-6.5

14 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.8

5 explicit affected versions

Ubuntu:24.04:LTS linux

22 explicit affected versions

Ubuntu:24.04:LTS linux-gke

15 explicit affected versions

Ubuntu:22.04:LTS linux-gcp-6.8

12 explicit affected versions

Ubuntu:22.04:LTS linux-starfive-6.2

3 explicit affected versions

Ubuntu:Pro:Realtime:24.04:LTS linux-raspi-realtime

17 explicit affected versions

Ubuntu:20.04:LTS linux-azure-fde

26 explicit affected versions

Ubuntu:20.04:LTS linux-aws-5.11

12 explicit affected versions

Ubuntu:24.04:LTS linux-lowlatency

21 explicit affected versions

Ubuntu:18.04:LTS linux-azure

44 explicit affected versions

Ubuntu:22.04:LTS linux-lowlatency-hwe-6.8

10 explicit affected versions

Ubuntu:20.04:LTS linux-aws-5.8

4 explicit affected versions

Ubuntu:18.04:LTS linux-azure-edge

4 explicit affected versions

Ubuntu:22.04:LTS linux-oem-6.0

16 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.3

9 explicit affected versions

Ubuntu:20.04:LTS linux-riscv

12 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.11

13 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.8

7 explicit affected versions

Ubuntu:24.04:LTS linux-ibm

19 explicit affected versions

Ubuntu:22.04:LTS linux-gcp-6.5

13 explicit affected versions

Ubuntu:22.04:LTS linux-nvidia-6.2

7 explicit affected versions

Ubuntu:22.04:LTS linux-azure-fde-6.2

10 explicit affected versions

Ubuntu:22.04:LTS linux-aws-6.2

14 explicit affected versions

Ubuntu:22.04:LTS linux-riscv-6.8

11 explicit affected versions

Ubuntu:20.04:LTS linux-gke-5.15

18 explicit affected versions

Ubuntu:22.04:LTS linux-azure-fde-5.19

3 explicit affected versions

Ubuntu:18.04:LTS linux-azure-5.3

16 explicit affected versions

Ubuntu:18.04:LTS linux-hwe

43 explicit affected versions

Ubuntu:22.04:LTS linux-hwe-5.19

11 explicit affected versions

Ubuntu:24.04:LTS linux-raspi

20 explicit affected versions

Ubuntu:24.04:LTS linux-gcp

20 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.14

35 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.13

12 explicit affected versions

Ubuntu:22.04:LTS linux-lowlatency-hwe-6.5

13 explicit affected versions

Ubuntu:18.04:LTS linux-aws-5.0

6 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.11

12 explicit affected versions

Ubuntu:18.04:LTS linux-oem

50 explicit affected versions

Ubuntu:22.04:LTS linux-nvidia-6.5

11 explicit affected versions

Ubuntu:20.04:LTS linux-hwe-5.11

12 explicit affected versions

Ubuntu:22.04:LTS linux-oem-6.1

27 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.13

12 explicit affected versions

Ubuntu:22.04:LTS linux-azure-5.19

7 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

related USN-7276-1
related USN-7277-1

04 / EVIDENCE

Source records

Open Source Vulnerabilities UBUNTU-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 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

View original source

05 / REFERENCES

Further evidence