CVE-2022-49374

tipc: check attribute length for bearer name

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/f07670871f4d19e613740eebe210e7e9ea535973 patch
https://git.kernel.org/stable/c/8b91d0dfc839e67708c905648cd0e7507a2263e5 patch
https://git.kernel.org/stable/c/b8fac8e321044a9ac50f7185b4e9d91a7745e4b0 patch
https://git.kernel.org/stable/c/92a930fcf4250fe961f6238b99af0bc405799f39 patch
https://git.kernel.org/stable/c/292be63c382ce20673ee61dff1ee9ed4a3dcaae7 patch
https://git.kernel.org/stable/c/3af15272cde28fe5c8489174b8624e232c1775ec patch
https://git.kernel.org/stable/c/7f36f798f89bf32c0164049cb0e3fd1af613d0bb patch

Frequently Asked Questions

What is the severity of CVE-2022-49374?
CVE-2022-49374 has been scored as a medium severity vulnerability.
How to fix CVE-2022-49374?
To fix CVE-2022-49374, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49374 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-49374 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49374?
CVE-2022-49374 affects Linux Linux, Linux Linux.
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