CVE-2024-49988

Summary

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

ksmbd: add refcnt to ksmbd_conn struct

When sending an oplock break request, opinfo->conn is used, But freed ->conn can be used on multichannel. This patch add a reference count to the ksmbd_conn struct so that it can be freed when it is no longer used.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 18f06bacc197d4ac9b518ad1c69999bc3d83e7aaaffected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 9fd3cde4628bcd3549ab95061f2bab74d2ed4f3baffected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < e9dac92f4482a382e8c0fe1bc243da5fc3526b0caffected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < ee426bfb9d09b29987369b897fe9b6485ac2be27affected
LinuxLinux5.15affected
LinuxLinux0 < 5.15unaffected
LinuxLinux6.6.55 <= 6.6.*unaffected
LinuxLinux6.10.14 <= 6.10.*unaffected
LinuxLinux6.11.3 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References