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VulnerabilityPublished Updated

CVE-2026-68444: Linux kernel · firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in ddf85f0c32e05baafbd9c3a44859858db90eec48 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 17:19 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch
Available – fixed in ddf85f0c32e05baafbd9c3a44859858db90eec48, 7201e56e52d18abf4cd0a2fee45daf9dc08b5b97, 996c5c19d5b5ac5b98a7b5a406b548305841c301 +4

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ d0c0bce831223b08e5bade2cefc93c3ddb790796, < ddf85f0c32e05baafbd9c3a44859858db90eec48
Fixed in
  • ddf85f0c32e05baafbd9c3a44859858db90eec48
LinuxLinuxAffected
  • ≥ d0c0bce831223b08e5bade2cefc93c3ddb790796, < 7201e56e52d18abf4cd0a2fee45daf9dc08b5b97
Fixed in
  • 7201e56e52d18abf4cd0a2fee45daf9dc08b5b97
LinuxLinuxAffected
  • ≥ d0c0bce831223b08e5bade2cefc93c3ddb790796, < 996c5c19d5b5ac5b98a7b5a406b548305841c301
Fixed in
  • 996c5c19d5b5ac5b98a7b5a406b548305841c301
LinuxLinuxAffected
  • ≥ d0c0bce831223b08e5bade2cefc93c3ddb790796, < 86f5ea90f73bb7154593bb96f3411e197f3d4fbe
Fixed in
  • 86f5ea90f73bb7154593bb96f3411e197f3d4fbe
LinuxLinuxAffected
  • ≥ d0c0bce831223b08e5bade2cefc93c3ddb790796, < 12a42c610e4432e7708cc48d607e5903fffe0aad
Fixed in
  • 12a42c610e4432e7708cc48d607e5903fffe0aad
LinuxLinuxAffected
  • ≥ d0c0bce831223b08e5bade2cefc93c3ddb790796, < 8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8
Fixed in
  • 8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8

Description

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.

References

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