CVE-2024-36930

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-36930
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-36930.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-36930
Related
Published
2024-05-30T16:15:16Z
Modified
2024-09-18T03:26:24.599955Z
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: fix null pointer dereference within spi_sync

If spisync() is called with the non-empty queue and the same spimessage is then reused, the complete callback for the message remains set while the context is cleared, leading to a null pointer dereference when the callback is invoked from spifinalizecurrent_message().

With function inlining disabled, the call stack might look like this:

rawspinlockirqsave from completewithflags+0x18/0x58 completewithflags from spicomplete+0x8/0xc spicomplete from spifinalizecurrentmessage+0xec/0x184 spifinalizecurrentmessage from spitransferonemessage+0x2a8/0x474 spitransferonemessage from _spipumptransfermessage+0x104/0x230 _spipumptransfermessage from _spitransfermessagenoqueue+0x30/0xc4 _spitransfermessagenoqueue from _spisync+0x204/0x248 _spisync from spisync+0x24/0x3c spisync from mcp251xfdregmapcrcread+0x124/0x28c [mcp251xfd] mcp251xfdregmapcrcread [mcp251xfd] from regmaprawread+0xf8/0x154 _regmaprawread from _regmapbusread+0x44/0x70 _regmapbusread from _regmapread+0x60/0xd8 regmapread from regmapread+0x3c/0x5c regmapread from mcp251xfdalloccanerrskb+0x1c/0x54 [mcp251xfd] mcp251xfdalloccanerrskb [mcp251xfd] from mcp251xfdirq+0x194/0xe70 [mcp251xfd] mcp251xfdirq [mcp251xfd] from irqthreadfn+0x1c/0x78 irqthreadfn from irqthread+0x118/0x1f4 irqthread from kthread+0xd8/0xf4 kthread from retfromfork+0x14/0x28

Fix this by also setting message->complete to NULL when the transfer is complete.

References

Affected packages

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
6.1.94-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+1
6.1.55-1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1~bpo11+1
6.1.69-1
6.1.76-1~bpo11+1
6.1.76-1
6.1.82-1
6.1.85-1
6.1.90-1~bpo11+1
6.1.90-1
6.1.94-1~bpo11+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
6.8.11-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+1
6.1.55-1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1~bpo11+1
6.1.69-1
6.1.76-1~bpo11+1
6.1.76-1
6.1.82-1
6.1.85-1
6.1.90-1~bpo11+1
6.1.90-1
6.1.94-1~bpo11+1
6.1.94-1
6.1.98-1
6.1.99-1
6.1.106-1
6.1.106-2
6.1.106-3
6.3.1-1~exp1
6.3.2-1~exp1
6.3.4-1~exp1
6.3.5-1~exp1
6.3.7-1~bpo12+1
6.3.7-1
6.3.11-1
6.4~rc6-1~exp1
6.4~rc7-1~exp1
6.4.1-1~exp1
6.4.4-1~bpo12+1
6.4.4-1
6.4.4-2
6.4.4-3~bpo12+1
6.4.4-3
6.4.11-1
6.4.13-1
6.5~rc4-1~exp1
6.5~rc6-1~exp1
6.5~rc7-1~exp1
6.5.1-1~exp1
6.5.3-1~bpo12+1
6.5.3-1
6.5.6-1
6.5.8-1
6.5.10-1~bpo12+1
6.5.10-1
6.5.13-1
6.6.3-1~exp1
6.6.4-1~exp1
6.6.7-1~exp1
6.6.8-1
6.6.9-1
6.6.11-1
6.6.13-1~bpo12+1
6.6.13-1
6.6.15-1
6.6.15-2
6.7-1~exp1
6.7.1-1~exp1
6.7.4-1~exp1
6.7.7-1
6.7.9-1
6.7.9-2
6.7.12-1~bpo12+1
6.7.12-1
6.8.9-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}