CVE-2026-68444

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd0c0bce831223b08e5bade2cefc93c3ddb790796 < 86f5ea90f73bb7154593bb96f3411e197f3d4fbeaffected
LinuxLinuxd0c0bce831223b08e5bade2cefc93c3ddb790796 < 7201e56e52d18abf4cd0a2fee45daf9dc08b5b97affected
LinuxLinuxd0c0bce831223b08e5bade2cefc93c3ddb790796 < 996c5c19d5b5ac5b98a7b5a406b548305841c301affected
LinuxLinuxd0c0bce831223b08e5bade2cefc93c3ddb790796 < 12a42c610e4432e7708cc48d607e5903fffe0aadaffected
LinuxLinuxd0c0bce831223b08e5bade2cefc93c3ddb790796 < 8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8affected
LinuxLinux5.14affected
LinuxLinux0 < 5.14unaffected
LinuxLinux6.6.148 <= 6.6.*unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.42 <= 6.18.*unaffected
LinuxLinux7.1.6 <= 7.1.*unaffected
LinuxLinux7.2-rc4 <= *unaffected

Weaknesses

References