CVE-2024-38663

Summary

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

blk-cgroup: fix list corruption from resetting io stat

Since commit 3b8cc6298724 ("blk-cgroup: Optimize blkcg_rstat_flush()"), each iostat instance is added to blkcg percpu list, so blkcg_reset_stats() can't reset the stat instance by memset(), otherwise the llist may be corrupted.

Fix the issue by only resetting the counter part.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3b8cc6298724021da845f2f9fd7dd4b6829a6817 < d4a60298ac34f027a09f8f893fdbd9e06279bb24affected
LinuxLinux3b8cc6298724021da845f2f9fd7dd4b6829a6817 < 89bb36c72e1951843f9e04dc84412e31fcc849a9affected
LinuxLinux3b8cc6298724021da845f2f9fd7dd4b6829a6817 < 6da6680632792709cecf2b006f2fe3ca7857e791affected
LinuxLinux6.2affected
LinuxLinux0 < 6.2unaffected
LinuxLinux6.6.33 <= 6.6.*unaffected
LinuxLinux6.9.4 <= 6.9.*unaffected
LinuxLinux6.10 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References