CVE-2025-38090
drivers/rapidio/rio_cm.c: prevent possible heap overwrite
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Description
In the Linux kernel, the following vulnerability has been resolved: drivers/rapidio/rio_cm.c: prevent possible heap overwrite In riocm_cdev_ioctl(RIO_CM_CHAN_SEND) -> cm_chan_msg_send() -> riocm_ch_send() cm_chan_msg_send() checks that userspace didn't send too much data but riocm_ch_send() failed to check that userspace sent sufficient data. The result is that riocm_ch_send() can write to fields in the rio_ch_chan_hdr which were outside the bounds of the space which cm_chan_msg_send() allocated. Address this by teaching riocm_ch_send() to check that the entire rio_ch_chan_hdr was copied in from userspace.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/1921781ec4a8824bd0c520bf9363e28a880d14ec
- https://git.kernel.org/stable/c/1cce6ac47f4a2ac1766b8a188dc8c8f6d8df2a53
- https://git.kernel.org/stable/c/50695153d7ddde3b1696dbf0085be0033bf3ddb3
- https://git.kernel.org/stable/c/58f664614f8c3d6142ab81ae551e466dc6e092e8
- https://git.kernel.org/stable/c/6d5c6711a55c35ce09b90705546050408d9d4b61
References (10)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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