Executive Summary

Informations
Name CVE-2021-47564 First vendor Publication 2024-05-24
Vendor Cve Last vendor Modification 2024-05-24

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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

net: marvell: prestera: fix double free issue on err path

fix error path handling in prestera_bridge_port_join() that cases prestera driver to crash (see below).

Trace:
Internal error: Oops: 96000044 [#1] SMP
Modules linked in: prestera_pci prestera uio_pdrv_genirq
CPU: 1 PID: 881 Comm: ip Not tainted 5.15.0 #1
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : prestera_bridge_destroy+0x2c/0xb0 [prestera]
lr : prestera_bridge_port_join+0x2cc/0x350 [prestera]
sp : ffff800011a1b0f0
...
x2 : ffff000109ca6c80 x1 : dead000000000100 x0 : dead000000000122
Call trace:
prestera_bridge_destroy+0x2c/0xb0 [prestera]
prestera_bridge_port_join+0x2cc/0x350 [prestera]
prestera_netdev_port_event.constprop.0+0x3c4/0x450 [prestera]
prestera_netdev_event_handler+0xf4/0x110 [prestera]
raw_notifier_call_chain+0x54/0x80
call_netdevice_notifiers_info+0x54/0xa0
__netdev_upper_dev_link+0x19c/0x380

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-47564

Sources (Detail)

https://git.kernel.org/stable/c/03e5203d2161a00afe4d97d206d2293e40b2f253
https://git.kernel.org/stable/c/5dca8eff4627315df98feec09fff9dfe3356325e
https://git.kernel.org/stable/c/e8d032507cb7912baf1d3e0af54516f823befefd
Source Url

Alert History

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0
1
Date Informations
2024-05-25 00:27:24
  • Multiple Updates
2024-05-24 21:28:48
  • First insertion