DEBIAN-CVE-2022-50356

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Source
https://security-tracker.debian.org/tracker/CVE-2022-50356
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50356.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2022-50356
Upstream
Published
2025-09-17T15:15:34Z
Modified
2025-09-30T05:17:36.885400Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: net: sched: sfb: fix null pointer access issue when sfbinit() fails When the default qdisc is sfb, if the qdisc of devqueue fails to be inited during mqprioinit(), sfbreset() is invoked to clear resources. In this case, the q->qdisc is NULL, and it will cause gpf issue. The process is as follows: qdisccreatedflt() sfbinit() tcfblockget() --->failed, q->qdisc is NULL ... qdiscput() ... sfbreset() qdiscreset(q->qdisc) --->q->qdisc is NULL ops = qdisc->ops The following is the Call Trace information: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] RIP: 0010:qdiscreset+0x2b/0x6f0 Call Trace: <TASK> sfbreset+0x37/0xd0 qdiscreset+0xed/0x6f0 qdiscdestroy+0x82/0x4c0 qdiscput+0x9e/0xb0 qdisccreatedflt+0x2c3/0x4a0 mqprioinit+0xa71/0x1760 qdisccreate+0x3eb/0x1000 tcmodifyqdisc+0x408/0x1720 rtnetlinkrcvmsg+0x38e/0xac0 netlinkrcvskb+0x12d/0x3a0 netlinkunicast+0x4a2/0x740 netlinksendmsg+0x826/0xcc0 socksendmsg+0xc5/0x100 _syssendmsg+0x583/0x690 syssendmsg+0xe8/0x160 _syssendmsg+0xbf/0x160 dosyscall64+0x35/0x80 entrySYSCALL64afterhwframe+0x46/0xb0 RIP: 0033:0x7f2164122d04 </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
5.10.158-1

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
6.0.6-1

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
6.0.6-1

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
6.0.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}