CVE-2022-49569

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49569
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49569.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-49569
Related
Published
2025-02-26T07:01:32Z
Modified
2025-03-10T22:53:05.747700Z
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:

spi: bcm2835: bcm2835spihandle_err(): fix NULL pointer deref for non DMA transfers

In case a IRQ based transfer times out the bcm2835spihandleerr() function is called. Since commit 1513ceee70f2 ("spi: bcm2835: Drop dmapending flag") the TX and RX DMA transfers are unconditionally canceled, leading to NULL pointer derefs if ctlr->dmatx or ctlr->dmarx are not set.

Fix the NULL pointer deref by checking that ctlr->dmatx and ctlr->dmarx are valid pointers before accessing them.

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
5.10.136-1

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

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
5.18.16-1

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
5.18.16-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}