- Vulnerability/
- CVE-2022-49903
CVE-2022-49903: ipv6: fix WARNING in ip6_route_net_exit_late()
First published: Thu May 01 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ipv6: fix WARNING in ip6_route_net_exit_late() During the initialization of ip6_route_net_init_late(), if file ipv6_route or rt6_stats fails to be created, the initialization is successful by default. Therefore, the ipv6_route or rt6_stats file doesn't be found during the remove in ip6_route_net_exit_late(). It will cause WRNING. The following is the stack information: name 'rt6_stats' WARNING: CPU: 0 PID: 9 at fs/proc/generic.c:712 remove_proc_entry+0x389/0x460 Modules linked in: Workqueue: netns cleanup_net RIP: 0010:remove_proc_entry+0x389/0x460 PKRU: 55555554 Call Trace: <TASK> ops_exit_list+0xb0/0x170 cleanup_net+0x4ea/0xb00 process_one_work+0x9bf/0x1710 worker_thread+0x665/0x1080 kthread+0x2e4/0x3a0 ret_from_fork+0x1f/0x30 </TASK>
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel |
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Reference Links
- https://git.kernel.org/stable/c/83fbf246ced54dadd7b9adc2a16efeff30ba944d
- https://git.kernel.org/stable/c/381453770f731f0f43616a1cd4c759b7807a1517
- https://git.kernel.org/stable/c/5dbb47ee89762da433cd8458788d7640c85f1a07
- https://git.kernel.org/stable/c/0ed71af4d017d2bd2cbb8f7254f613a4914def26
- https://git.kernel.org/stable/c/080589287127838046077904f34d5054ea0f895c
- https://git.kernel.org/stable/c/768b3c745fe5789f2430bdab02f35a9ad1148d97
Frequently Asked Questions
What is the severity of CVE-2022-49903?
CVE-2022-49903 has been classified with a severity rating of moderate due to its potential impact on the Linux kernel's IPV6 routing functionalities.
How do I fix CVE-2022-49903?
To fix CVE-2022-49903, users should update their Linux kernel to the latest version where this vulnerability has been patched.
What impact does CVE-2022-49903 have on Linux systems?
CVE-2022-49903 can cause warnings during the initialization of IPV6 routing components, potentially leading to system instability.
Is CVE-2022-49903 exploitable remotely?
CVE-2022-49903 does not appear to be directly exploitable over a network, but it can affect network stability if not addressed.
When was CVE-2022-49903 reported?
CVE-2022-49903 was reported in 2022 and was resolved with a fix in subsequent Linux kernel updates.
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