5.5
MEDIUM
CVE-2022-48746
Melanox Networks mlx5 Core NULL Pointer Dereference store
Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix handling of wrong devices during bond netevent Current implementation of bond netevent handler only check if the handled netdev is VF representor and it missing a check if the VF representor is on the same phys device of the bond handling the netevent. Fix by adding the missing check and optimizing the check if the netdev is VF representor so it will not access uninitialized private data and crashes. BUG: kernel NULL pointer dereference, address: 000000000000036c PGD 0 P4D 0 Oops: 0000 [#1] SMP NOPTI Workqueue: eth3bond0 bond_mii_monitor [bonding] RIP: 0010:mlx5e_is_uplink_rep+0xc/0x50 [mlx5_core] RSP: 0018:ffff88812d69fd60 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff8881cf800000 RCX: 0000000000000000 RDX: ffff88812d69fe10 RSI: 000000000000001b RDI: ffff8881cf800880 RBP: ffff8881cf800000 R08: 00000445cabccf2b R09: 0000000000000008 R10: 0000000000000004 R11: 0000000000000008 R12: ffff88812d69fe10 R13: 00000000fffffffe R14: ffff88820c0f9000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88846fb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000036c CR3: 0000000103d80006 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mlx5e_eswitch_uplink_rep+0x31/0x40 [mlx5_core] mlx5e_rep_is_lag_netdev+0x94/0xc0 [mlx5_core] mlx5e_rep_esw_bond_netevent+0xeb/0x3d0 [mlx5_core] raw_notifier_call_chain+0x41/0x60 call_netdevice_notifiers_info+0x34/0x80 netdev_lower_state_changed+0x4e/0xa0 bond_mii_monitor+0x56b/0x640 [bonding] process_one_work+0x1b9/0x390 worker_thread+0x4d/0x3d0 ? rescuer_thread+0x350/0x350 kthread+0x124/0x150 ? set_kthread_struct+0x40/0x40 ret_from_fork+0x1f/0x30

INFO

Published Date :

June 20, 2024, 12:15 p.m.

Last Modified :

Jan. 6, 2025, 9:29 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2022-48746 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-48746.

URL Resource
https://git.kernel.org/stable/c/4fad499d7fece448e7230d5e5b92f6d8a073e0bb Patch
https://git.kernel.org/stable/c/a01ee1b8165f4161459b5ec4e728bc7130fe8cd4 Patch
https://git.kernel.org/stable/c/ec41332e02bd0acf1f24206867bb6a02f5877a62 Patch
https://git.kernel.org/stable/c/fe70126da6063c29ca161cdec7ad1dae9af836b3 Patch
https://git.kernel.org/stable/c/4fad499d7fece448e7230d5e5b92f6d8a073e0bb Patch
https://git.kernel.org/stable/c/a01ee1b8165f4161459b5ec4e728bc7130fe8cd4 Patch
https://git.kernel.org/stable/c/ec41332e02bd0acf1f24206867bb6a02f5877a62 Patch
https://git.kernel.org/stable/c/fe70126da6063c29ca161cdec7ad1dae9af836b3 Patch

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-48746 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-48746 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Jan. 06, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE NIST CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.8 up to (excluding) 5.10.97 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.20 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.16.6 *cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*
    Changed Reference Type https://git.kernel.org/stable/c/4fad499d7fece448e7230d5e5b92f6d8a073e0bb No Types Assigned https://git.kernel.org/stable/c/4fad499d7fece448e7230d5e5b92f6d8a073e0bb Patch
    Changed Reference Type https://git.kernel.org/stable/c/4fad499d7fece448e7230d5e5b92f6d8a073e0bb No Types Assigned https://git.kernel.org/stable/c/4fad499d7fece448e7230d5e5b92f6d8a073e0bb Patch
    Changed Reference Type https://git.kernel.org/stable/c/a01ee1b8165f4161459b5ec4e728bc7130fe8cd4 No Types Assigned https://git.kernel.org/stable/c/a01ee1b8165f4161459b5ec4e728bc7130fe8cd4 Patch
    Changed Reference Type https://git.kernel.org/stable/c/a01ee1b8165f4161459b5ec4e728bc7130fe8cd4 No Types Assigned https://git.kernel.org/stable/c/a01ee1b8165f4161459b5ec4e728bc7130fe8cd4 Patch
    Changed Reference Type https://git.kernel.org/stable/c/ec41332e02bd0acf1f24206867bb6a02f5877a62 No Types Assigned https://git.kernel.org/stable/c/ec41332e02bd0acf1f24206867bb6a02f5877a62 Patch
    Changed Reference Type https://git.kernel.org/stable/c/ec41332e02bd0acf1f24206867bb6a02f5877a62 No Types Assigned https://git.kernel.org/stable/c/ec41332e02bd0acf1f24206867bb6a02f5877a62 Patch
    Changed Reference Type https://git.kernel.org/stable/c/fe70126da6063c29ca161cdec7ad1dae9af836b3 No Types Assigned https://git.kernel.org/stable/c/fe70126da6063c29ca161cdec7ad1dae9af836b3 Patch
    Changed Reference Type https://git.kernel.org/stable/c/fe70126da6063c29ca161cdec7ad1dae9af836b3 No Types Assigned https://git.kernel.org/stable/c/fe70126da6063c29ca161cdec7ad1dae9af836b3 Patch
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/4fad499d7fece448e7230d5e5b92f6d8a073e0bb
    Added Reference https://git.kernel.org/stable/c/a01ee1b8165f4161459b5ec4e728bc7130fe8cd4
    Added Reference https://git.kernel.org/stable/c/ec41332e02bd0acf1f24206867bb6a02f5877a62
    Added Reference https://git.kernel.org/stable/c/fe70126da6063c29ca161cdec7ad1dae9af836b3
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 20, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix handling of wrong devices during bond netevent Current implementation of bond netevent handler only check if the handled netdev is VF representor and it missing a check if the VF representor is on the same phys device of the bond handling the netevent. Fix by adding the missing check and optimizing the check if the netdev is VF representor so it will not access uninitialized private data and crashes. BUG: kernel NULL pointer dereference, address: 000000000000036c PGD 0 P4D 0 Oops: 0000 [#1] SMP NOPTI Workqueue: eth3bond0 bond_mii_monitor [bonding] RIP: 0010:mlx5e_is_uplink_rep+0xc/0x50 [mlx5_core] RSP: 0018:ffff88812d69fd60 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff8881cf800000 RCX: 0000000000000000 RDX: ffff88812d69fe10 RSI: 000000000000001b RDI: ffff8881cf800880 RBP: ffff8881cf800000 R08: 00000445cabccf2b R09: 0000000000000008 R10: 0000000000000004 R11: 0000000000000008 R12: ffff88812d69fe10 R13: 00000000fffffffe R14: ffff88820c0f9000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88846fb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000036c CR3: 0000000103d80006 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mlx5e_eswitch_uplink_rep+0x31/0x40 [mlx5_core] mlx5e_rep_is_lag_netdev+0x94/0xc0 [mlx5_core] mlx5e_rep_esw_bond_netevent+0xeb/0x3d0 [mlx5_core] raw_notifier_call_chain+0x41/0x60 call_netdevice_notifiers_info+0x34/0x80 netdev_lower_state_changed+0x4e/0xa0 bond_mii_monitor+0x56b/0x640 [bonding] process_one_work+0x1b9/0x390 worker_thread+0x4d/0x3d0 ? rescuer_thread+0x350/0x350 kthread+0x124/0x150 ? set_kthread_struct+0x40/0x40 ret_from_fork+0x1f/0x30
    Added Reference kernel.org https://git.kernel.org/stable/c/a01ee1b8165f4161459b5ec4e728bc7130fe8cd4 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/fe70126da6063c29ca161cdec7ad1dae9af836b3 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/4fad499d7fece448e7230d5e5b92f6d8a073e0bb [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/ec41332e02bd0acf1f24206867bb6a02f5877a62 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-48746 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-48746 weaknesses.

CVSS31 - Vulnerability Scoring System
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Latest DB Update: May. 13, 2025 15:31