DEBIAN-CVE-2024-36478

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Source
https://security-tracker.debian.org/tracker/CVE-2024-36478
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-36478.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2024-36478
Upstream
Published
2024-06-21T11:15:10Z
Modified
2025-09-19T07:35:07.434247Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: nullblk: fix null-ptr-dereference while configuring 'power' and 'submitqueues' Writing 'power' and 'submitqueues' concurrently will trigger kernel panic: Test script: modprobe nullblk nrdevices=0 mkdir -p /sys/kernel/config/nullb/nullb0 while true; do echo 1 > submitqueues; echo 4 > submitqueues; done & while true; do echo 1 > power; echo 0 > power; done Test result: BUG: kernel NULL pointer dereference, address: 0000000000000148 Oops: 0000 [#1] PREEMPT SMP RIP: 0010:lockacquire+0x41d/0x28f0 Call Trace: <TASK> lockacquire+0x121/0x450 downwrite+0x5f/0x1d0 simplerecursiveremoval+0x12f/0x5c0 blkmqdebugfsunregisterhctxs+0x7c/0x100 blkmqupdatenrhwqueues+0x4a3/0x720 nullbupdatenrhwqueues+0x71/0xf0 [nullblk] nullbdevicesubmitqueuesstore+0x79/0xf0 [nullblk] configfswriteiter+0x119/0x1e0 vfswrite+0x326/0x730 ksyswrite+0x74/0x150 This is because delgendisk() can concurrent with blkmqupdatenrhwqueues(): nullbdevicepowerstore nullbapplysubmitqueues nulldeldev delgendisk nullbupdatenrhwqueues if (!dev->nullb) // still set while gendisk is deleted return 0 blkmqupdatenrhwqueues dev->nullb = NULL Fix this problem by resuing the global mutex to protect nullbdevicepowerstore() and nullbupdatenrhwqueues() from configfs.

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
6.1.119-1

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
6.1.112-1
6.1.115-1

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
6.9.7-1

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
6.9.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:11 / linux-6.1

Package

Name
linux-6.1
Purl
pkg:deb/debian/linux-6.1?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.119-1~deb11u1

Affected versions

6.*

6.1.106-3~deb11u1
6.1.106-3~deb11u2
6.1.106-3~deb11u3
6.1.112-1~deb11u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}