CVE-2025-68782 scsi: target: Reset t_task_cdb pointer in error case
A null pointer dereference in the Linux kernel SCSI target subsystem can cause a system crash when command allocation fails.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-68782?
CVE-2025-68782 is a high-severity vulnerability in Linux, published on 13 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: Reset t_task_cdb pointer in error case
If allocation of cmd->t_task_cdb fails, it remains NULL but is later dereferenced in the 'err' path.
In case of error, reset NULL t_task_cdb value to point at the default fixed-size buffer.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Weakness: CWE-476
Which versions are affected by CVE-2025-68782?
How do I fix CVE-2025-68782?
Apply the vendor's patch.
Is CVE-2025-68782 being exploited?
There is no known exploitation of CVE-2025-68782 in the wild and no public exploit code.
Sources
Also known as AZL-74363, BELL-CVE-2025-68782, DEBIAN-CVE-2025-68782, GHSA-r6v3-89j7-2957, ROOT-OS-UBUNTU-2204-CVE-2025-68782, ROOT-OS-UBUNTU-2404-CVE-2025-68782 and 1 more.