CVE-2022-49209

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49209
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49209.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49209
Related
Published
2025-02-26T07:00:58Z
Modified
2025-03-18T20:50:32.271733Z
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:

bpf, sockmap: Fix memleak in tcpbpfsendmsg while sk msg is full

If tcpbpfsendmsg() is running while sk msg is full. When skmsgalloc() returns -ENOMEM error, tcpbpfsendmsg() goes to waitformemory. If partial memory has been alloced by skmsgalloc(), that is, msgtx->sg.size is greater than osize after skmsgalloc(), memleak occurs. To fix we use skmsg_trim() to release the allocated memory, then goto wait for memory.

Other call paths of skmsgalloc() have the similar issue, such as tlsswsendmsg(), so handle skmsgtrim logic inside skmsgalloc(), as Cong Wang suggested.

This issue can cause the following info: WARNING: CPU: 3 PID: 7950 at net/core/stream.c:208 skstreamkillqueues+0xd4/0x1a0 Call Trace: <TASK> inetcskdestroysock+0x55/0x110 _tcpclose+0x279/0x470 tcpclose+0x1f/0x60 inetrelease+0x3f/0x80 _sockrelease+0x3d/0xb0 sockclose+0x11/0x20 _fput+0x92/0x250 taskworkrun+0x6a/0xa0 doexit+0x33b/0xb60 dogroupexit+0x2f/0xa0 getsignal+0xb6/0x950 archdosignalorrestart+0xac/0x2a0 exittousermodeprepare+0xa9/0x200 syscallexittousermode+0x12/0x30 dosyscall64+0x46/0x80 entrySYSCALL64afterhwframe+0x44/0xae </TASK>

WARNING: CPU: 3 PID: 2094 at net/ipv4/afinet.c:155 inetsockdestruct+0x13c/0x260 Call Trace: <TASK> _skdestruct+0x24/0x1f0 skpsockdestroy+0x19b/0x1c0 processonework+0x1b3/0x3c0 kthread+0xe6/0x110 retfrom_fork+0x22/0x30 </TASK>

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"
}