CVE-2022-49903

ipv6: fix WARNING in ip6_route_net_exit_late()

MEDIUM

5.5

CVSS Score

Published: May 1, 2025 at 02:10 PM UTC

Updated: June 17, 2026 at 05:19 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

2.6.26 ≤ v < 4.19.2652.6.26 ≤ v < 5.10.1542.6.26 ≤ v < 5.15.782.6.26 ≤ v < 5.4.2242.6.26 ≤ v < 6.0.82.6.26 ≤ v < 6.14.20 ≤ v < 5.4.2245.11 ≤ v < 5.15.785.16 ≤ v < 6.0.85.5 ≤ v < 5.10.1542.6.26 6.1 rc1 6.1 rc2 6.1 rc3cdb1876192dbe680b3ac955717fdf7f863c1762d

Vendor states this is fixed in 080589287127838046077904f34d5054ea0f895c (fixed)

Vendor states this is fixed in 0ed71af4d017d2bd2cbb8f7254f613a4914def26 (fixed)

Vendor states this is fixed in 381453770f731f0f43616a1cd4c759b7807a1517 (fixed)

Vendor states this is fixed in 5dbb47ee89762da433cd8458788d7640c85f1a07 (fixed)

Vendor states this is fixed in 768b3c745fe5789f2430bdab02f35a9ad1148d97 (fixed)

Vendor states this is fixed in 83fbf246ced54dadd7b9adc2a16efeff30ba944d (fixed)

Vendor states this is fixed in 2.6.26 (unaffected)

Vendor states this is fixed in 4.19.265 (unaffected)

Vendor states this is fixed in 5.10.154 (unaffected)

Vendor states this is fixed in 5.15.78 (unaffected)

Vendor states this is fixed in 5.4.224 (unaffected)

Vendor states this is fixed in 6.0.8 (unaffected)