CVE-2022-49918: ipvs: fix WARNING in __ip_vs_cleanup_batch()
Vulnerability summary
CVE-2022-49918 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 10.3% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 01-05-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: ipvs: fix WARNING in __ip_vs_cleanup_batch() During the initialization of ip_vs_conn_net_init(), if file ip_vs_conn or ip_vs_conn_sync fails to be created, the initialization is successful by default. Therefore, the ip_vs_conn or ip_vs_conn_sync file doesn't be found during the remove. The following is the stack information: name 'ip_vs_conn_sync' WARNING: CPU: 3 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 Call Trace: <TASK> __ip_vs_cleanup_batch+0x7d/0x120 ops_exit_list+0x125/0x170 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- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.20%
Chance of exploitation in the next 30 days
Percentile
10%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.20% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
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≥ 61b1ab4583e275af216c8454b9256de680499b19, < f08ee2aa24c076f81d84e26e213d8c6f4efd9f50 | ≥ 61b1ab4583e275af216c8454b9256de680499b19, < 7effc4ce3d1434ce6ff286866585a6e905fdbfc1 | ≥ 61b1ab4583e275af216c8454b9256de680499b19, < 931f56d59c854263b32075bfac56fdb3b1598d1b | ≥ 61b1ab4583e275af216c8454b9256de680499b19, < 5ee2d6b726b0ce339e36569e5849692f4cf4595e | ≥ 61b1ab4583e275af216c8454b9256de680499b19, < e724220b826e008764309d2a1f55a9434a4e1530 | ≥ 61b1ab4583e275af216c8454b9256de680499b19, < 3d00c6a0da8ddcf75213e004765e4a42acc71d5d | 2.6.39
- linux_kernel≥ 2.6.39, < 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