Riskcovery

CVE-2021-47564

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

State
Published
Severity
Not scored
Published
May 24, 2024
Updated
May 11, 2026
Reserved
May 24, 2024

Read the record on cve.org

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

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • e1189d9a5fbec8153dbe03f3589bc2baa96694e2 to before 5dca8eff4627315df98feec09fff9dfe3356325eAffected
  • e1189d9a5fbec8153dbe03f3589bc2baa96694e2 to before 03e5203d2161a00afe4d97d206d2293e40b2f253Affected
  • e1189d9a5fbec8153dbe03f3589bc2baa96694e2 to before e8d032507cb7912baf1d3e0af54516f823befefdAffected
LinuxLinux
  • 5.10Affected
  • before 5.10Not affected
  • 5.10.83 through 5.10.*Not affected
  • 5.15.6 through 5.15.*Not affected
  • 5.16 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.