CVE-2026-68444 PUBLISHED

firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()

Assigner: Linux
Reserved: 30.07.2026 Published: 12.08.2026 Updated: 12.08.2026

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

firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()

ffa_partition_info_get() passes uuid_str directly to uuid_parse() without a NULL check. When a caller passes NULL, uuid_parse() -> __uuid_parse() -> uuid_is_valid() dereferences the pointer, causing a kernel panic:

| Unable to handle kernel NULL pointer dereference at virtual address | 0000000000000040 | pc : uuid_parse+0x40/0xac | lr : ffa_partition_info_get+0x1c/0x94 [arm_ffa]

Add a NULL guard before uuid_parse() so a NULL argument returns -ENODEV instead of crashing. Callers are expected to always supply a valid partition UUID, so NULL is not a supported input.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from d0c0bce831223b08e5bade2cefc93c3ddb790796 to 86f5ea90f73bb7154593bb96f3411e197f3d4fbe (excl.)
  • affected from d0c0bce831223b08e5bade2cefc93c3ddb790796 to 7201e56e52d18abf4cd0a2fee45daf9dc08b5b97 (excl.)
  • affected from d0c0bce831223b08e5bade2cefc93c3ddb790796 to 996c5c19d5b5ac5b98a7b5a406b548305841c301 (excl.)
  • affected from d0c0bce831223b08e5bade2cefc93c3ddb790796 to 12a42c610e4432e7708cc48d607e5903fffe0aad (excl.)
  • affected from d0c0bce831223b08e5bade2cefc93c3ddb790796 to 8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.14 is affected
  • unaffected from 0 to 5.14 (excl.)
  • unaffected from 6.6.148 to 6.6.* (incl.)
  • unaffected from 6.12.101 to 6.12.* (incl.)
  • unaffected from 6.18.42 to 6.18.* (incl.)
  • unaffected from 7.1.6 to 7.1.* (incl.)
  • unaffected from 7.2-rc4 to * (incl.)

References