CVE-2024-42073

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-42073
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-42073.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-42073
Related
Published
2024-07-29T16:15:06Z
Modified
2024-09-11T05:04:27.111562Z
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:

mlxsw: spectrum_buffers: Fix memory corruptions on Spectrum-4 systems

The following two shared buffer operations make use of the Shared Buffer Status Register (SBSR):

# devlink sb occupancy snapshot pci/0000:01:00.0 # devlink sb occupancy clearmax pci/0000:01:00.0

The register has two masks of 256 bits to denote on which ingress / egress ports the register should operate on. Spectrum-4 has more than 256 ports, so the register was extended by cited commit with a new 'port_page' field.

However, when filling the register's payload, the driver specifies the ports as absolute numbers and not relative to the first port of the port page, resulting in memory corruptions [1].

Fix by specifying the ports relative to the first port of the port page.

[1] BUG: KASAN: slab-use-after-free in mlxswspsboccsnapshot+0xb6d/0xbc0 Read of size 1 at addr ffff8881068cb00f by task devlink/1566 [...] Call Trace: <TASK> dumpstacklvl+0xc6/0x120 printreport+0xce/0x670 kasanreport+0xd7/0x110 mlxswspsboccsnapshot+0xb6d/0xbc0 mlxswdevlinksboccsnapshot+0x75/0xb0 devlinknlsboccsnapshotdoit+0x1f9/0x2a0 genlfamilyrcvmsgdoit+0x20c/0x300 genlrcvmsg+0x567/0x800 netlinkrcvskb+0x170/0x450 genlrcv+0x2d/0x40 netlinkunicast+0x547/0x830 netlinksendmsg+0x8d4/0xdb0 _syssendto+0x49b/0x510 _x64syssendto+0xe5/0x1c0 dosyscall64+0xc1/0x1d0 entrySYSCALL64afterhwframe+0x77/0x7f [...] Allocated by task 1: kasansavestack+0x33/0x60 kasansavetrack+0x14/0x30 _kasankmalloc+0x8f/0xa0 copyverifierstate+0xbc2/0xfb0 docheckcommon+0x2c51/0xc7e0 bpfcheck+0x5107/0x9960 bpfprogload+0xf0e/0x2690 _sysbpf+0x1a61/0x49d0 _x64sysbpf+0x7d/0xc0 dosyscall64+0xc1/0x1d0 entrySYSCALL64after_hwframe+0x77/0x7f

Freed by task 1: kasansavestack+0x33/0x60 kasansavetrack+0x14/0x30 kasansavefreeinfo+0x3b/0x60 poisonslabobject+0x109/0x170 _kasanslabfree+0x14/0x30 kfree+0xca/0x2b0 freeverifierstate+0xce/0x270 docheckcommon+0x4828/0xc7e0 bpfcheck+0x5107/0x9960 bpfprogload+0xf0e/0x2690 _sysbpf+0x1a61/0x49d0 _x64sysbpf+0x7d/0xc0 dosyscall64+0xc1/0x1d0 entrySYSCALL64afterhwframe+0x77/0x7f

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
6.1.98-1

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

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
6.9.8-1

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
6.8.11-1
6.8.12-1~bpo12+1
6.8.12-1
6.9.2-1~exp1
6.9.7-1~bpo12+1
6.9.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}