CVE-2022-48647

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-48647
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48647.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-48647
Related
Published
2024-04-28T13:15:07Z
Modified
2024-09-18T03:22:31.402406Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

sfc: fix TX channel offset when using legacy interrupts

In legacy interrupt mode the txchanneloffset was hardcoded to 1, but that's not correct if efxsepparatetx_channels is false. In that case, the offset is 0 because the tx queues are in the single existing channel at index 0, together with the rx queue.

Without this fix, as soon as you try to send any traffic, it tries to get the tx queues from an uninitialized channel getting these errors: WARNING: CPU: 1 PID: 0 at drivers/net/ethernet/sfc/tx.c:540 efxhardstartxmit+0x12e/0x170 [sfc] [...] RIP: 0010:efxhardstartxmit+0x12e/0x170 [sfc] [...] Call Trace: <IRQ> devhardstartxmit+0xd7/0x230 schdirectxmit+0x9f/0x360 _devqueuexmit+0x890/0xa40 [...] BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [...] RIP: 0010:efxhardstartxmit+0x153/0x170 [sfc] [...] Call Trace: <IRQ> devhardstartxmit+0xd7/0x230 schdirectxmit+0x9f/0x360 _devqueue_xmit+0x890/0xa40 [...]

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
5.10.148-1

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

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
6.0.2-1

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
6.0.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}