DEBIAN-CVE-2022-50291

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2022-50291
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50291.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2022-50291
Upstream
Published
2025-09-15T15:15:40Z
Modified
2025-09-19T07:33:07.659507Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: kcm: annotate data-races around kcm->rxpsock kcm->rxpsock can be read locklessly in kcmrfree(). Annotate the read and writes accordingly. We do the same for kcm->rxwait in the following patch. syzbot reported: BUG: KCSAN: data-race in kcmrfree / unreserverxkcm write to 0xffff888123d827b8 of 8 bytes by task 2758 on cpu 1: unreserverxkcm+0x72/0x1f0 net/kcm/kcmsock.c:313 kcmrcvstrparser+0x2b5/0x3a0 net/kcm/kcmsock.c:373 strprecv+0x64c/0xd20 net/strparser/strparser.c:301 strprecv+0x6d/0x80 net/strparser/strparser.c:335 tcpreadsock+0x13e/0x5a0 net/ipv4/tcp.c:1703 strpreadsock net/strparser/strparser.c:358 [inline] dostrpwork net/strparser/strparser.c:406 [inline] strpwork+0xe8/0x180 net/strparser/strparser.c:415 processonework+0x3d3/0x720 kernel/workqueue.c:2289 workerthread+0x618/0xa70 kernel/workqueue.c:2436 kthread+0x1a9/0x1e0 kernel/kthread.c:376 retfromfork+0x1f/0x30 arch/x86/entry/entry64.S:306 read to 0xffff888123d827b8 of 8 bytes by task 5859 on cpu 0: kcmrfree+0x14c/0x220 net/kcm/kcmsock.c:181 skbreleaseheadstate+0x8e/0x160 net/core/skbuff.c:841 skbreleaseall net/core/skbuff.c:852 [inline] _kfreeskb net/core/skbuff.c:868 [inline] kfreeskbreason+0x5c/0x260 net/core/skbuff.c:891 kfreeskb include/linux/skbuff.h:1216 [inline] kcmrecvmsg+0x226/0x2b0 net/kcm/kcmsock.c:1161 sysrecvmsg+0x16c/0x2e0 _sysrecvmsg net/socket.c:2743 [inline] dorecvmmsg+0x2f1/0x710 net/socket.c:2837 _sysrecvmmsg net/socket.c:2916 [inline] _dosysrecvmmsg net/socket.c:2939 [inline] _sesysrecvmmsg net/socket.c:2932 [inline] _x64sysrecvmmsg+0xde/0x160 net/socket.c:2932 dosyscallx64 arch/x86/entry/common.c:50 [inline] dosyscall64+0x2b/0x70 arch/x86/entry/common.c:80 entrySYSCALL64afterhwframe+0x63/0xcd value changed: 0xffff88812971ce00 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 5859 Comm: syz-executor.3 Not tainted 6.0.0-syzkaller-12189-g19d17ab7c68b-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022

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
5.10.158-1

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
5.10.113-1
5.10.120-1~bpo10+1
5.10.120-1
5.10.127-1
5.10.127-2~bpo10+1
5.10.127-2
5.10.136-1
5.10.140-1
5.10.148-1
5.10.149-1
5.10.149-2

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
6.0.7-1

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
6.0.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / 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
6.0.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}