CVE-2021-47373

Summary

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

irqchip/gic-v3-its: Fix potential VPE leak on error

In its_vpe_irq_domain_alloc, when its_vpe_init() returns an error, there is an off-by-one in the number of VPEs to be freed.

Fix it by simply passing the number of VPEs allocated, which is the index of the loop iterating over the VPEs.

[maz: fixed commit message]

Affected Software

VendorProductVersion RangeStatus
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < 7d39992d45acd6f2d6b2f62389c55b61fb3d486baffected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < 5701e8bff314c155e7afdc467b1e0389d86853d0affected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < 42d3711c23781045e7a5cd28536c774b9a66d20baffected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < 568662e37f927e3dc3e475f3ff7cf4ab7719c5e7affected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < e0c1c2e5da19685a20557a50f10c6aa4fa26aa84affected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < 280bef512933b2dda01d681d8cbe499b98fc5bddaffected
LinuxLinux4.14affected
LinuxLinux0 < 4.14unaffected
LinuxLinux4.14.249 <= 4.14.*unaffected
LinuxLinux4.19.209 <= 4.19.*unaffected
LinuxLinux5.4.150 <= 5.4.*unaffected
LinuxLinux5.10.70 <= 5.10.*unaffected
LinuxLinux5.14.9 <= 5.14.*unaffected
LinuxLinux5.15 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References