CVE-2025-68213: idpf: fix possible vport_config NULL pointer deref in remove
In the Linux kernel, the following vulnerability has been resolved:
idpf: fix possible vportconfig NULL pointer deref in remove
Attempting to remove the driver will cause a crash in cases where the vport failed to initialize. Following trace is from an instance where the driver failed during an attempt to create a VF: [ 1661.543624] idpf 0000:84:00.7: Device HW Reset initiated [ 1722.923726] idpf 0000:84:00.7: Transaction timed-out (op:1 cookie:2900 vcop:1 salt:29 timeout:60000ms) [ 1723.353263] BUG: kernel NULL pointer dereference, address: 0000000000000028 ... [ 1723.358472] RIP: 0010:idpfremove+0x11c/0x200 [idpf] ... [ 1723.364973] Call Trace: [ 1723.365475] <TASK> [ 1723.365972] pcideviceremove+0x42/0xb0 [ 1723.366481] devicereleasedriverinternal+0x1a9/0x210 [ 1723.366987] pcistopbusdevice+0x6d/0x90 [ 1723.367488] pcistopandremovebusdevice+0x12/0x20 [ 1723.367971] pciiovremovevirtfn+0xbd/0x120 [ 1723.368309] sriovdisable+0x34/0xe0 [ 1723.368643] idpfsriovconfigure+0x58/0x140 [idpf] [ 1723.368982] sriovnumvfsstore+0xda/0x1c0
Avoid the NULL pointer dereference by adding NULL pointer check for vportconfig[i], before freeing userconfig.qcoalesce.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-68213?
CVE-2025-68213 has a severity rating that indicates it can lead to a crash during driver removal in specific scenarios.
How do I fix CVE-2025-68213?
To fix CVE-2025-68213, update to the latest version of the Linux kernel where this vulnerability has been resolved.
Which versions of the Linux kernel are affected by CVE-2025-68213?
CVE-2025-68213 affects versions of the Linux kernel prior to the patch that addresses this particular issue.
What impacts does CVE-2025-68213 have on system stability?
CVE-2025-68213 can result in a system crash when attempting to remove an improperly initialized driver, potentially impacting stability.
Is CVE-2025-68213 linked to any specific drivers?
CVE-2025-68213 is related to the handling of vport configuration in the idpf driver within the Linux kernel.