CVE-2022-49903
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
01/05/2025
Last modified:
02/05/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
ipv6: fix WARNING in ip6_route_net_exit_late()<br />
<br />
During the initialization of ip6_route_net_init_late(), if file<br />
ipv6_route or rt6_stats fails to be created, the initialization is<br />
successful by default. Therefore, the ipv6_route or rt6_stats file<br />
doesn&#39;t be found during the remove in ip6_route_net_exit_late(). It<br />
will cause WRNING.<br />
<br />
The following is the stack information:<br />
name &#39;rt6_stats&#39;<br />
WARNING: CPU: 0 PID: 9 at fs/proc/generic.c:712 remove_proc_entry+0x389/0x460<br />
Modules linked in:<br />
Workqueue: netns cleanup_net<br />
RIP: 0010:remove_proc_entry+0x389/0x460<br />
PKRU: 55555554<br />
Call Trace:<br />
<br />
ops_exit_list+0xb0/0x170<br />
cleanup_net+0x4ea/0xb00<br />
process_one_work+0x9bf/0x1710<br />
worker_thread+0x665/0x1080<br />
kthread+0x2e4/0x3a0<br />
ret_from_fork+0x1f/0x30<br />
Impact
References to Advisories, Solutions, and Tools
- https://git.kernel.org/stable/c/080589287127838046077904f34d5054ea0f895c
- https://git.kernel.org/stable/c/0ed71af4d017d2bd2cbb8f7254f613a4914def26
- https://git.kernel.org/stable/c/381453770f731f0f43616a1cd4c759b7807a1517
- https://git.kernel.org/stable/c/5dbb47ee89762da433cd8458788d7640c85f1a07
- https://git.kernel.org/stable/c/768b3c745fe5789f2430bdab02f35a9ad1148d97
- https://git.kernel.org/stable/c/83fbf246ced54dadd7b9adc2a16efeff30ba944d