CVE-2021-47564
"Prestera Network Driver Double Free Vulnerability"
Description
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
INFO
Published Date :
May 24, 2024, 3:15 p.m.
Last Modified :
Jan. 6, 2025, 8:52 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47564.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47564 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47564 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jan. 06, 2025
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE NIST CWE-415 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.10.83 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.6 *cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/03e5203d2161a00afe4d97d206d2293e40b2f253 No Types Assigned https://git.kernel.org/stable/c/03e5203d2161a00afe4d97d206d2293e40b2f253 Patch Changed Reference Type https://git.kernel.org/stable/c/03e5203d2161a00afe4d97d206d2293e40b2f253 No Types Assigned https://git.kernel.org/stable/c/03e5203d2161a00afe4d97d206d2293e40b2f253 Patch Changed Reference Type https://git.kernel.org/stable/c/5dca8eff4627315df98feec09fff9dfe3356325e No Types Assigned https://git.kernel.org/stable/c/5dca8eff4627315df98feec09fff9dfe3356325e Patch Changed Reference Type https://git.kernel.org/stable/c/5dca8eff4627315df98feec09fff9dfe3356325e No Types Assigned https://git.kernel.org/stable/c/5dca8eff4627315df98feec09fff9dfe3356325e Patch Changed Reference Type https://git.kernel.org/stable/c/e8d032507cb7912baf1d3e0af54516f823befefd No Types Assigned https://git.kernel.org/stable/c/e8d032507cb7912baf1d3e0af54516f823befefd Patch Changed Reference Type https://git.kernel.org/stable/c/e8d032507cb7912baf1d3e0af54516f823befefd No Types Assigned https://git.kernel.org/stable/c/e8d032507cb7912baf1d3e0af54516f823befefd Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/03e5203d2161a00afe4d97d206d2293e40b2f253 Added Reference https://git.kernel.org/stable/c/5dca8eff4627315df98feec09fff9dfe3356325e Added Reference https://git.kernel.org/stable/c/e8d032507cb7912baf1d3e0af54516f823befefd -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 24, 2024
Action Type Old Value New Value Added Description 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 Added Reference kernel.org https://git.kernel.org/stable/c/5dca8eff4627315df98feec09fff9dfe3356325e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/03e5203d2161a00afe4d97d206d2293e40b2f253 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/e8d032507cb7912baf1d3e0af54516f823befefd [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47564 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47564
weaknesses.