CVE-2025-40074

Summary

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

ipv4: start using dst_dev_rcu()

Change icmpv4_xrlim_allow(), ip_defrag() to prevent possible UAF.

Change ipmr_prepare_xmit(), ipmr_queue_fwd_xmit(), ip_mr_output(), ipv4_neigh_lookup() to use lockdep enabled dst_dev_rcu().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 < 864155c164654110f68a17a63bd0339754790d67affected
LinuxLinux4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 < e150f273cd8ed34ebc6d03758aad95c12fc58337affected
LinuxLinux4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 < 684efb2c86c887685f9aa65e1a21b3df6c1f822daffected
LinuxLinux4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 < 923e0734c386984d45de508528a7a7ad91d791ccaffected
LinuxLinux4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 < 6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8affected
LinuxLinux4.13affected
LinuxLinux0 < 4.13unaffected
LinuxLinux6.1.189 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.106 <= 6.12.*unaffected
LinuxLinux6.17.3 <= 6.17.*unaffected
LinuxLinux6.18 <= *unaffected

Weaknesses

References