CVE-2022-49903

Summary

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>

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxcdb1876192dbe680b3ac955717fdf7f863c1762d < 83fbf246ced54dadd7b9adc2a16efeff30ba944daffected
LinuxLinuxcdb1876192dbe680b3ac955717fdf7f863c1762d < 381453770f731f0f43616a1cd4c759b7807a1517affected
LinuxLinuxcdb1876192dbe680b3ac955717fdf7f863c1762d < 5dbb47ee89762da433cd8458788d7640c85f1a07affected
LinuxLinuxcdb1876192dbe680b3ac955717fdf7f863c1762d < 0ed71af4d017d2bd2cbb8f7254f613a4914def26affected
LinuxLinuxcdb1876192dbe680b3ac955717fdf7f863c1762d < 080589287127838046077904f34d5054ea0f895caffected
LinuxLinuxcdb1876192dbe680b3ac955717fdf7f863c1762d < 768b3c745fe5789f2430bdab02f35a9ad1148d97affected
LinuxLinux2.6.26affected
LinuxLinux0 < 2.6.26unaffected
LinuxLinux4.19.265 <= 4.19.*unaffected
LinuxLinux5.4.224 <= 5.4.*unaffected
LinuxLinux5.10.154 <= 5.10.*unaffected
LinuxLinux5.15.78 <= 5.15.*unaffected
LinuxLinux6.0.8 <= 6.0.*unaffected
LinuxLinux6.1 <= *unaffected

Weaknesses

References