CVE-2025-38461

Summary

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

vsock: Fix transport_* TOCTOU

Transport assignment may race with module unload. Protect new_transport from becoming a stale pointer.

This also takes care of an insecure call in vsock_use_local_transport(); add a lockdep assert.

BUG: unable to handle page fault for address: fffffbfff8056000 Oops: Oops: 0000 [#1] SMP KASAN RIP: 0010:vsock_assign_transport+0x366/0x600 Call Trace: vsock_connect+0x59c/0xc40 __sys_connect+0xe8/0x100 __x64_sys_connect+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxc0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 8667e8d0eb46bc54fdae30ba2f4786407d3d88ebaffected
LinuxLinuxc0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 36a439049b34cca0b3661276049b84a1f76cc21aaffected
LinuxLinuxc0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 9ce53e744f18e73059d3124070e960f3aa9902bfaffected
LinuxLinuxc0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 9d24bb6780282b0255b9929abe5e8f98007e2c6eaffected
LinuxLinuxc0cfa2d8a788fcf45df5bf4070ab2474c88d543a < ae2c712ba39c7007de63cb0c75b51ce1caaf1da5affected
LinuxLinuxc0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 7b73bddf54777fb62d4d8c7729d0affe6df04477affected
LinuxLinuxc0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 687aa0c5581b8d4aa87fd92973e4ee576b550cdfaffected
LinuxLinux5.5affected
LinuxLinux0 < 5.5unaffected
LinuxLinux5.10.240 <= 5.10.*unaffected
LinuxLinux5.15.189 <= 5.15.*unaffected
LinuxLinux6.1.146 <= 6.1.*unaffected
LinuxLinux6.6.99 <= 6.6.*unaffected
LinuxLinux6.12.39 <= 6.12.*unaffected
LinuxLinux6.15.7 <= 6.15.*unaffected
LinuxLinux6.16 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References