5.5

CVE-2022-49903: ipv6: fix WARNING in ip6_route_net_exit_late()

Analyzed
AliasesUBUNTU-CVE-2022-49903DEBIAN-CVE-2022-49903
Published 01-05-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49903 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
RHSA-2023:2458RHSA-2023:7077

Timeline

  1. 01-05-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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>

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.22% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu112 products
  • linuxAll versions (No fix recorded) | < 4.15.0-206.217 | < 5.4.0-139.156 | < 5.15.0-60.66
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1151.164 | < 5.4.0-1096.104 | < 5.15.0-1030.34
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ cdb1876192dbe680b3ac955717fdf7f863c1762d, < 83fbf246ced54dadd7b9adc2a16efeff30ba944d | ≥ cdb1876192dbe680b3ac955717fdf7f863c1762d, < 381453770f731f0f43616a1cd4c759b7807a1517 | ≥ cdb1876192dbe680b3ac955717fdf7f863c1762d, < 5dbb47ee89762da433cd8458788d7640c85f1a07 | ≥ cdb1876192dbe680b3ac955717fdf7f863c1762d, < 0ed71af4d017d2bd2cbb8f7254f613a4914def26 | ≥ cdb1876192dbe680b3ac955717fdf7f863c1762d, < 080589287127838046077904f34d5054ea0f895c | ≥ cdb1876192dbe680b3ac955717fdf7f863c1762d, < 768b3c745fe5789f2430bdab02f35a9ad1148d97 | 2.6.26
  • linux_kernel≥ 2.6.26, < 4.19.265 | ≥ 4.20, < 5.4.224 | ≥ 5.5, < 5.10.154 | ≥ 5.11, < 5.15.78 | ≥ 5.16, < 6.0.8 | 6.1:rc1 | 6.1:rc2 | 6.1:rc3
Debian1 product
  • linux< 6.0.8-1

3 vendors · 115 products

References

10 links