CVE-2024-56708

Summary

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

EDAC/igen6: Avoid segmentation fault on module unload

The segmentation fault happens because:

During modprobe:

  1. In igen6_probe(), igen6_pvt will be allocated with kzalloc()
  2. In igen6_register_mci(), mci->pvt_info will point to &igen6_pvt->imc[mc]

During rmmod:

  1. In mci_release() in edac_mc.c, it will kfree(mci->pvt_info)
  2. In igen6_remove(), it will kfree(igen6_pvt);

Fix this issue by setting mci->pvt_info to NULL to avoid the double kfree.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux10590a9d4f23e0a519730d79d39331df60ad2079 < 029ac07bb92d2f7502d47a4916f197a8445d83bfaffected
LinuxLinux10590a9d4f23e0a519730d79d39331df60ad2079 < 2a80e710bbc088a2511c159ee4d910456c5f0832affected
LinuxLinux10590a9d4f23e0a519730d79d39331df60ad2079 < 830cabb61113d92a425dd3038ccedbdfb3c8d079affected
LinuxLinux10590a9d4f23e0a519730d79d39331df60ad2079 < e5c7052664b61f9e2f896702d20552707d0ef60aaffected
LinuxLinux10590a9d4f23e0a519730d79d39331df60ad2079 < db60326f2c47b079e36785ace621eb3002db2088affected
LinuxLinux10590a9d4f23e0a519730d79d39331df60ad2079 < fefaae90398d38a1100ccd73b46ab55ff4610fbaaffected
LinuxLinux5.11affected
LinuxLinux0 < 5.11unaffected
LinuxLinux5.15.174 <= 5.15.*unaffected
LinuxLinux6.1.120 <= 6.1.*unaffected
LinuxLinux6.6.64 <= 6.6.*unaffected
LinuxLinux6.11.11 <= 6.11.*unaffected
LinuxLinux6.12.2 <= 6.12.*unaffected
LinuxLinux6.13 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References