0.0
NA
CVE-2024-41047
Intel i40e driver XDP program unloading vulnerability
Description

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix XDP program unloading while removing the driver The commit 6533e558c650 ("i40e: Fix reset path while removing the driver") introduced a new PF state "__I40E_IN_REMOVE" to block modifying the XDP program while the driver is being removed. Unfortunately, such a change is useful only if the ".ndo_bpf()" callback was called out of the rmmod context because unloading the existing XDP program is also a part of driver removing procedure. In other words, from the rmmod context the driver is expected to unload the XDP program without reporting any errors. Otherwise, the kernel warning with callstack is printed out to dmesg. Example failing scenario: 1. Load the i40e driver. 2. Load the XDP program. 3. Unload the i40e driver (using "rmmod" command). The example kernel warning log: [ +0.004646] WARNING: CPU: 94 PID: 10395 at net/core/dev.c:9290 unregister_netdevice_many_notify+0x7a9/0x870 [...] [ +0.010959] RIP: 0010:unregister_netdevice_many_notify+0x7a9/0x870 [...] [ +0.002726] Call Trace: [ +0.002457] <TASK> [ +0.002119] ? __warn+0x80/0x120 [ +0.003245] ? unregister_netdevice_many_notify+0x7a9/0x870 [ +0.005586] ? report_bug+0x164/0x190 [ +0.003678] ? handle_bug+0x3c/0x80 [ +0.003503] ? exc_invalid_op+0x17/0x70 [ +0.003846] ? asm_exc_invalid_op+0x1a/0x20 [ +0.004200] ? unregister_netdevice_many_notify+0x7a9/0x870 [ +0.005579] ? unregister_netdevice_many_notify+0x3cc/0x870 [ +0.005586] unregister_netdevice_queue+0xf7/0x140 [ +0.004806] unregister_netdev+0x1c/0x30 [ +0.003933] i40e_vsi_release+0x87/0x2f0 [i40e] [ +0.004604] i40e_remove+0x1a1/0x420 [i40e] [ +0.004220] pci_device_remove+0x3f/0xb0 [ +0.003943] device_release_driver_internal+0x19f/0x200 [ +0.005243] driver_detach+0x48/0x90 [ +0.003586] bus_remove_driver+0x6d/0xf0 [ +0.003939] pci_unregister_driver+0x2e/0xb0 [ +0.004278] i40e_exit_module+0x10/0x5f0 [i40e] [ +0.004570] __do_sys_delete_module.isra.0+0x197/0x310 [ +0.005153] do_syscall_64+0x85/0x170 [ +0.003684] ? syscall_exit_to_user_mode+0x69/0x220 [ +0.004886] ? do_syscall_64+0x95/0x170 [ +0.003851] ? exc_page_fault+0x7e/0x180 [ +0.003932] entry_SYSCALL_64_after_hwframe+0x71/0x79 [ +0.005064] RIP: 0033:0x7f59dc9347cb [ +0.003648] Code: 73 01 c3 48 8b 0d 65 16 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 35 16 0c 00 f7 d8 64 89 01 48 [ +0.018753] RSP: 002b:00007ffffac99048 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0 [ +0.007577] RAX: ffffffffffffffda RBX: 0000559b9bb2f6e0 RCX: 00007f59dc9347cb [ +0.007140] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000559b9bb2f748 [ +0.007146] RBP: 00007ffffac99070 R08: 1999999999999999 R09: 0000000000000000 [ +0.007133] R10: 00007f59dc9a5ac0 R11: 0000000000000206 R12: 0000000000000000 [ +0.007141] R13: 00007ffffac992d8 R14: 0000559b9bb2f6e0 R15: 0000000000000000 [ +0.007151] </TASK> [ +0.002204] ---[ end trace 0000000000000000 ]--- Fix this by checking if the XDP program is being loaded or unloaded. Then, block only loading a new program while "__I40E_IN_REMOVE" is set. Also, move testing "__I40E_IN_REMOVE" flag to the beginning of XDP_SETUP callback to avoid unnecessary operations and checks.

INFO

Published Date :

July 29, 2024, 3:15 p.m.

Last Modified :

July 29, 2024, 4:21 p.m.

Source :

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

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Affected Products

The following products are affected by CVE-2024-41047 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-2024-41047.

URL Resource
https://git.kernel.org/stable/c/0075b8c94d76830c7b6f018f6e4eeb0bf6465fdc
https://git.kernel.org/stable/c/01fc5142ae6b06b61ed51a624f2732d6525d8ea3
https://git.kernel.org/stable/c/4bc336b2345f1485438c0eb7246d9c8a8d09f8ff
https://git.kernel.org/stable/c/5266302cb2c74d8ab0e9a69d5752fffaea70496e
https://git.kernel.org/stable/c/b399a68054dfb36eed121846ef5fcddba40b7740

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-2024-41047 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-41047 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.

  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 29, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: i40e: Fix XDP program unloading while removing the driver The commit 6533e558c650 ("i40e: Fix reset path while removing the driver") introduced a new PF state "__I40E_IN_REMOVE" to block modifying the XDP program while the driver is being removed. Unfortunately, such a change is useful only if the ".ndo_bpf()" callback was called out of the rmmod context because unloading the existing XDP program is also a part of driver removing procedure. In other words, from the rmmod context the driver is expected to unload the XDP program without reporting any errors. Otherwise, the kernel warning with callstack is printed out to dmesg. Example failing scenario: 1. Load the i40e driver. 2. Load the XDP program. 3. Unload the i40e driver (using "rmmod" command). The example kernel warning log: [ +0.004646] WARNING: CPU: 94 PID: 10395 at net/core/dev.c:9290 unregister_netdevice_many_notify+0x7a9/0x870 [...] [ +0.010959] RIP: 0010:unregister_netdevice_many_notify+0x7a9/0x870 [...] [ +0.002726] Call Trace: [ +0.002457] <TASK> [ +0.002119] ? __warn+0x80/0x120 [ +0.003245] ? unregister_netdevice_many_notify+0x7a9/0x870 [ +0.005586] ? report_bug+0x164/0x190 [ +0.003678] ? handle_bug+0x3c/0x80 [ +0.003503] ? exc_invalid_op+0x17/0x70 [ +0.003846] ? asm_exc_invalid_op+0x1a/0x20 [ +0.004200] ? unregister_netdevice_many_notify+0x7a9/0x870 [ +0.005579] ? unregister_netdevice_many_notify+0x3cc/0x870 [ +0.005586] unregister_netdevice_queue+0xf7/0x140 [ +0.004806] unregister_netdev+0x1c/0x30 [ +0.003933] i40e_vsi_release+0x87/0x2f0 [i40e] [ +0.004604] i40e_remove+0x1a1/0x420 [i40e] [ +0.004220] pci_device_remove+0x3f/0xb0 [ +0.003943] device_release_driver_internal+0x19f/0x200 [ +0.005243] driver_detach+0x48/0x90 [ +0.003586] bus_remove_driver+0x6d/0xf0 [ +0.003939] pci_unregister_driver+0x2e/0xb0 [ +0.004278] i40e_exit_module+0x10/0x5f0 [i40e] [ +0.004570] __do_sys_delete_module.isra.0+0x197/0x310 [ +0.005153] do_syscall_64+0x85/0x170 [ +0.003684] ? syscall_exit_to_user_mode+0x69/0x220 [ +0.004886] ? do_syscall_64+0x95/0x170 [ +0.003851] ? exc_page_fault+0x7e/0x180 [ +0.003932] entry_SYSCALL_64_after_hwframe+0x71/0x79 [ +0.005064] RIP: 0033:0x7f59dc9347cb [ +0.003648] Code: 73 01 c3 48 8b 0d 65 16 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 35 16 0c 00 f7 d8 64 89 01 48 [ +0.018753] RSP: 002b:00007ffffac99048 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0 [ +0.007577] RAX: ffffffffffffffda RBX: 0000559b9bb2f6e0 RCX: 00007f59dc9347cb [ +0.007140] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000559b9bb2f748 [ +0.007146] RBP: 00007ffffac99070 R08: 1999999999999999 R09: 0000000000000000 [ +0.007133] R10: 00007f59dc9a5ac0 R11: 0000000000000206 R12: 0000000000000000 [ +0.007141] R13: 00007ffffac992d8 R14: 0000559b9bb2f6e0 R15: 0000000000000000 [ +0.007151] </TASK> [ +0.002204] ---[ end trace 0000000000000000 ]--- Fix this by checking if the XDP program is being loaded or unloaded. Then, block only loading a new program while "__I40E_IN_REMOVE" is set. Also, move testing "__I40E_IN_REMOVE" flag to the beginning of XDP_SETUP callback to avoid unnecessary operations and checks.
    Added Reference kernel.org https://git.kernel.org/stable/c/b399a68054dfb36eed121846ef5fcddba40b7740 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/4bc336b2345f1485438c0eb7246d9c8a8d09f8ff [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/5266302cb2c74d8ab0e9a69d5752fffaea70496e [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/0075b8c94d76830c7b6f018f6e4eeb0bf6465fdc [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/01fc5142ae6b06b61ed51a624f2732d6525d8ea3 [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-2024-41047 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-2024-41047 weaknesses.

NONE - Vulnerability Scoring System
: