What is the severity of CVE-2024-50304?

CVE-2024-50304 has a moderate severity rating due to the potential impact on system stability.

How do I fix CVE-2024-50304?

To address CVE-2024-50304, update your Linux kernel to a version higher than 6.11.7 or apply the patches from the kernel repositories.

Which Linux kernel versions are affected by CVE-2024-50304?

CVE-2024-50304 affects Linux kernel versions from 3.10.12 up to 6.11.7, as well as versions 6.12-rc1 to 6.12-rc6.

What types of systems are impacted by CVE-2024-50304?

Systems running the affected versions of the Linux kernel, particularly those utilizing IP tunnel features, are impacted by CVE-2024-50304.

Is there a known exploit for CVE-2024-50304?

As of now, there is no publicly available exploit for CVE-2024-50304.

Vulnerability/
CVE-2024-50304

medium

5.5

19/11/2024

2/2/2025

CVE-2024-50304: ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find()

First published: Tue Nov 19 2024(Updated: )

In the Linux kernel, the following vulnerability has been resolved: ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find() The per-netns IP tunnel hash table is protected by the RTNL mutex and ip_tunnel_find() is only called from the control path where the mutex is taken. Add a lockdep expression to hlist_for_each_entry_rcu() in ip_tunnel_find() in order to validate that the mutex is held and to silence the suspicious RCU usage warning [1]. [1] WARNING: suspicious RCU usage 6.12.0-rc3-custom-gd95d9a31aceb #139 Not tainted ----------------------------- net/ipv4/ip_tunnel.c:221 RCU-list traversed in non-reader section!! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by ip/362: #0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x377/0xf60 stack backtrace: CPU: 12 UID: 0 PID: 362 Comm: ip Not tainted 6.12.0-rc3-custom-gd95d9a31aceb #139 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 Call Trace: <TASK> dump_stack_lvl+0xba/0x110 lockdep_rcu_suspicious.cold+0x4f/0xd6 ip_tunnel_find+0x435/0x4d0 ip_tunnel_newlink+0x517/0x7a0 ipgre_newlink+0x14c/0x170 __rtnl_newlink+0x1173/0x19c0 rtnl_newlink+0x6c/0xa0 rtnetlink_rcv_msg+0x3cc/0xf60 netlink_rcv_skb+0x171/0x450 netlink_unicast+0x539/0x7f0 netlink_sendmsg+0x8c1/0xd80 ____sys_sendmsg+0x8f9/0xc20 ___sys_sendmsg+0x197/0x1e0 __sys_sendmsg+0x122/0x1f0 do_syscall_64+0xbb/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f

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

Affected Software	Affected Version	How to fix
	>=3.10.12<6.11.7
	=6.12-rc1
	=6.12-rc2
	=6.12-rc3
	=6.12-rc4
	=6.12-rc5
	=6.12-rc6

Remedy

https://git.kernel.org/stable/c/90e0569dd3d32f4f4d2ca691d3fa5a8a14a13c12

Remedy

https://git.kernel.org/stable/c/f20fe2cfe06ca1b008b09da4f2b4e0c5547ccef6

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2024-50304?
CVE-2024-50304 has a moderate severity rating due to the potential impact on system stability.
How do I fix CVE-2024-50304?
To address CVE-2024-50304, update your Linux kernel to a version higher than 6.11.7 or apply the patches from the kernel repositories.
Which Linux kernel versions are affected by CVE-2024-50304?
CVE-2024-50304 affects Linux kernel versions from 3.10.12 up to 6.11.7, as well as versions 6.12-rc1 to 6.12-rc6.
What types of systems are impacted by CVE-2024-50304?
Systems running the affected versions of the Linux kernel, particularly those utilizing IP tunnel features, are impacted by CVE-2024-50304.
Is there a known exploit for CVE-2024-50304?
As of now, there is no publicly available exploit for CVE-2024-50304.

agent/title
agent/first-publish-date
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agent/type
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agent/severity
agent/remedy
agent/source
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/references
agent/tags
agent/softwarecombine
agent/event
collector/nvd-api
source/NVD
agent/software-canonical-lookup
vendor/linux
canonical/linux kernel
version/linux kernel/3.10.12
version/linux kernel/6.12-rc1
version/linux kernel/6.12-rc2
version/linux kernel/6.12-rc3
version/linux kernel/6.12-rc4
version/linux kernel/6.12-rc5
version/linux kernel/6.12-rc6

Frequently Asked Questions

What is the severity of CVE-2024-50304?
CVE-2024-50304 has a moderate severity rating due to the potential impact on system stability.
How do I fix CVE-2024-50304?
To address CVE-2024-50304, update your Linux kernel to a version higher than 6.11.7 or apply the patches from the kernel repositories.
Which Linux kernel versions are affected by CVE-2024-50304?
CVE-2024-50304 affects Linux kernel versions from 3.10.12 up to 6.11.7, as well as versions 6.12-rc1 to 6.12-rc6.
What types of systems are impacted by CVE-2024-50304?
Systems running the affected versions of the Linux kernel, particularly those utilizing IP tunnel features, are impacted by CVE-2024-50304.
Is there a known exploit for CVE-2024-50304?
As of now, there is no publicly available exploit for CVE-2024-50304.

CVE-2024-50304: ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find()

Remedy

Remedy

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2024-50304?

How do I fix CVE-2024-50304?

Which Linux kernel versions are affected by CVE-2024-50304?

What types of systems are impacted by CVE-2024-50304?

Is there a known exploit for CVE-2024-50304?

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Frequently Asked Questions

What is the severity of CVE-2024-50304?

How do I fix CVE-2024-50304?

Which Linux kernel versions are affected by CVE-2024-50304?

What types of systems are impacted by CVE-2024-50304?

Is there a known exploit for CVE-2024-50304?