CVE-2024-35847

Summary

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

irqchip/gic-v3-its: Prevent double free on error

The error handling path in its_vpe_irq_domain_alloc() causes a double free when its_vpe_init() fails after successfully allocating at least one interrupt. This happens because its_vpe_irq_domain_free() frees the interrupts along with the area bitmap and the vprop_page and its_vpe_irq_domain_alloc() subsequently frees the area bitmap and the vprop_page again.

Fix this by unconditionally invoking its_vpe_irq_domain_free() which handles all cases correctly and by removing the bitmap/vprop_page freeing from its_vpe_irq_domain_alloc().

[ tglx: Massaged change log ]

Affected Software

VendorProductVersion RangeStatus
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < f5417ff561b8ac9a7e53c747b8627a7ab58378aeaffected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < b72d2b1448b682844f995e660b77f2a1fabc1662affected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < aa44d21574751a7d6bca892eb8e0e9ac68372e52affected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < 5dbdbe1133911ca7d8466bb86885adec32ad9438affected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < dd681710ab77c8beafe2e263064cb1bd0e2d6ca9affected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < 03170e657f62c26834172742492a8cb8077ef792affected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < 5b012f77abde89bf0be8a0547636184fea618137affected
LinuxLinux7d75bbb4bc1ad90386776459d37e4ddfe605671e < c26591afd33adce296c022e3480dea4282b7ef91affected
LinuxLinux4.14affected
LinuxLinux0 < 4.14unaffected
LinuxLinux4.19.313 <= 4.19.*unaffected
LinuxLinux5.4.275 <= 5.4.*unaffected
LinuxLinux5.10.216 <= 5.10.*unaffected
LinuxLinux5.15.158 <= 5.15.*unaffected
LinuxLinux6.1.90 <= 6.1.*unaffected
LinuxLinux6.6.30 <= 6.6.*unaffected
LinuxLinux6.8.9 <= 6.8.*unaffected
LinuxLinux6.9 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References