CVE-2022-49374

tipc: check attribute length for bearer name

State: Published
Severity: 5.5 Medium
Published: Feb 26, 2025
Updated: May 11, 2026
Reserved: Feb 26, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-908 Use of Uninitialized Resource

Affected Products

Product	Versions
LinuxLinux	cb30a63384bc91d5da06e1cede1115f666a29271 to before f07670871f4d19e613740eebe210e7e9ea535973Affected cb30a63384bc91d5da06e1cede1115f666a29271 to before 8b91d0dfc839e67708c905648cd0e7507a2263e5Affected cb30a63384bc91d5da06e1cede1115f666a29271 to before b8fac8e321044a9ac50f7185b4e9d91a7745e4b0Affected cb30a63384bc91d5da06e1cede1115f666a29271 to before 92a930fcf4250fe961f6238b99af0bc405799f39Affected cb30a63384bc91d5da06e1cede1115f666a29271 to before 292be63c382ce20673ee61dff1ee9ed4a3dcaae7Affected cb30a63384bc91d5da06e1cede1115f666a29271 to before 3af15272cde28fe5c8489174b8624e232c1775ecAffected cb30a63384bc91d5da06e1cede1115f666a29271 to before 7f36f798f89bf32c0164049cb0e3fd1af613d0bbAffected
LinuxLinux	4.17Affected before 4.17Not affected 4.19.247 through 4.19.Not affected 5.4.198 through 5.4.Not affected 5.10.122 through 5.10.Not affected 5.15.47 through 5.15.Not affected 5.17.15 through 5.17.Not affected 5.18.4 through 5.18.Not affected 5.19 and laterNot affected

Product

Versions

LinuxLinux

cb30a63384bc91d5da06e1cede1115f666a29271 to before f07670871f4d19e613740eebe210e7e9ea535973Affected
cb30a63384bc91d5da06e1cede1115f666a29271 to before 8b91d0dfc839e67708c905648cd0e7507a2263e5Affected
cb30a63384bc91d5da06e1cede1115f666a29271 to before b8fac8e321044a9ac50f7185b4e9d91a7745e4b0Affected
cb30a63384bc91d5da06e1cede1115f666a29271 to before 92a930fcf4250fe961f6238b99af0bc405799f39Affected
cb30a63384bc91d5da06e1cede1115f666a29271 to before 292be63c382ce20673ee61dff1ee9ed4a3dcaae7Affected
cb30a63384bc91d5da06e1cede1115f666a29271 to before 3af15272cde28fe5c8489174b8624e232c1775ecAffected
cb30a63384bc91d5da06e1cede1115f666a29271 to before 7f36f798f89bf32c0164049cb0e3fd1af613d0bbAffected

LinuxLinux

4.17Affected
before 4.17Not affected
4.19.247 through 4.19.*Not affected
5.4.198 through 5.4.*Not affected
5.10.122 through 5.10.*Not affected
5.15.47 through 5.15.*Not affected
5.17.15 through 5.17.*Not affected
5.18.4 through 5.18.*Not affected
5.19 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.