vulnerability
Ubuntu: (CVE-2022-49374): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:L/Au:S/C:C/I:N/A:C) | Feb 26, 2025 | Mar 3, 2025 | Jun 12, 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.
Solution(s)
References
- CVE-2022-49374
- https://attackerkb.com/topics/CVE-2022-49374
- URL-https://git.kernel.org/linus/7f36f798f89bf32c0164049cb0e3fd1af613d0bb
- URL-https://git.kernel.org/stable/c/292be63c382ce20673ee61dff1ee9ed4a3dcaae7
- URL-https://git.kernel.org/stable/c/3af15272cde28fe5c8489174b8624e232c1775ec
- URL-https://git.kernel.org/stable/c/7f36f798f89bf32c0164049cb0e3fd1af613d0bb
- URL-https://git.kernel.org/stable/c/8b91d0dfc839e67708c905648cd0e7507a2263e5
- URL-https://git.kernel.org/stable/c/92a930fcf4250fe961f6238b99af0bc405799f39
- URL-https://git.kernel.org/stable/c/b8fac8e321044a9ac50f7185b4e9d91a7745e4b0
- URL-https://git.kernel.org/stable/c/f07670871f4d19e613740eebe210e7e9ea535973
- URL-https://www.cve.org/CVERecord?id=CVE-2022-49374
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