5.5

CVE-2022-49374: tipc: check attribute length for bearer name

Modified
AliasesUBUNTU-CVE-2022-49374DEBIAN-CVE-2022-49374
Published 26-02-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49374 is a medium (CVSS 5.5) Use of Uninitialized Resource vulnerability in linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 21% 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 (CVE.org)
EPSS score
0.28%
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-2022:7683RHSA-2022:8267

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: tipc: check attribute length for bearer name syzbot reported uninit-value: ===================================================== BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:644 [inline] BUG: KMSAN: uninit-value in string+0x4f9/0x6f0 lib/vsprintf.c:725 string_nocheck lib/vsprintf.c:644 [inline] string+0x4f9/0x6f0 lib/vsprintf.c:725 vsnprintf+0x2222/0x3650 lib/vsprintf.c:2806 vprintk_store+0x537/0x2150 kernel/printk/printk.c:2158 vprintk_emit+0x28b/0xab0 kernel/printk/printk.c:2256 vprintk_default+0x86/0xa0 kernel/printk/printk.c:2283 vprintk+0x15f/0x180 kernel/printk/printk_safe.c:50 _printk+0x18d/0x1cf kernel/printk/printk.c:2293 tipc_enable_bearer net/tipc/bearer.c:371 [inline] __tipc_nl_bearer_enable+0x2022/0x22a0 net/tipc/bearer.c:1033 tipc_nl_bearer_enable+0x6c/0xb0 net/tipc/bearer.c:1042 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] - Do sanity check the attribute length for TIPC_NLA_BEARER_NAME. - Do not use 'illegal name' in printing message.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.28% 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

Affected systems

Version check

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

Ubuntu107 products
  • linux< 5.4.0-126.142 | < 5.15.0-48.54
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1085.92 | < 5.15.0-1020.24
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ cb30a63384bc91d5da06e1cede1115f666a29271, < f07670871f4d19e613740eebe210e7e9ea535973 | ≥ cb30a63384bc91d5da06e1cede1115f666a29271, < 8b91d0dfc839e67708c905648cd0e7507a2263e5 | ≥ cb30a63384bc91d5da06e1cede1115f666a29271, < b8fac8e321044a9ac50f7185b4e9d91a7745e4b0 | ≥ cb30a63384bc91d5da06e1cede1115f666a29271, < 92a930fcf4250fe961f6238b99af0bc405799f39 | ≥ cb30a63384bc91d5da06e1cede1115f666a29271, < 292be63c382ce20673ee61dff1ee9ed4a3dcaae7 | ≥ cb30a63384bc91d5da06e1cede1115f666a29271, < 3af15272cde28fe5c8489174b8624e232c1775ec | ≥ cb30a63384bc91d5da06e1cede1115f666a29271, < 7f36f798f89bf32c0164049cb0e3fd1af613d0bb | 4.17
  • linux_kernel≥ 4.17, < 4.19.247 | ≥ 4.20, < 5.4.198 | ≥ 5.5, < 5.10.122 | ≥ 5.11, < 5.15.47 | ≥ 5.16, < 5.17.15 | ≥ 5.18, < 5.18.4
Debian1 product
  • linux< 5.18.5-1

3 vendors · 110 products

References

11 links
Show all 11 references