CVE-2022-49153

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49153
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49153.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49153
Related
Published
2025-02-26T07:00:52Z
Modified
2025-03-13T22:50:52.706947Z
Downstream
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

wireguard: socket: free skb in send6 when ipv6 is disabled

I got a memory leak report:

unreferenced object 0xffff8881191fc040 (size 232): comm "kworker/u17:0", pid 23193, jiffies 4295238848 (age 3464.870s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff814c3ef4>] slabpostallochook+0x84/0x3b0 [<ffffffff814c8977>] kmemcacheallocnode+0x167/0x340 [<ffffffff832974fb>] _allocskb+0x1db/0x200 [<ffffffff82612b5d>] wgsocketsendbuffertopeer+0x3d/0xc0 [<ffffffff8260e94a>] wgpacketsendhandshakeinitiation+0xfa/0x110 [<ffffffff8260ec81>] wgpackethandshakesendworker+0x21/0x30 [<ffffffff8119c558>] processonework+0x2e8/0x770 [<ffffffff8119ca2a>] workerthread+0x4a/0x4b0 [<ffffffff811a88e0>] kthread+0x120/0x160 [<ffffffff8100242f>] retfromfork+0x1f/0x30

In function wgsocketsendbufferasreplytoskb() or wgsocketsend buffertopeer(), the semantics of send6() is required to free skb. But when CONFIGIPV6 is disable, kfreeskb() is missing. This patch adds it to fix this bug.

References

Affected packages

Debian:11 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.10.113-1

Affected versions

5.*

5.10.46-4
5.10.46-5
5.10.70-1~bpo10+1
5.10.70-1
5.10.84-1
5.10.92-1~bpo10+1
5.10.92-1
5.10.92-2
5.10.103-1~bpo10+1
5.10.103-1
5.10.106-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.17.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.17.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}