CVE-2025-38090

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxb6e8d4aa1110306378af0f3472a6b85a1f039a16 < a8b5ea2e302aa5cd00fc7addd8df53c9bde7b5f6affected
LinuxLinuxb6e8d4aa1110306378af0f3472a6b85a1f039a16 < c03ddc183249f03fc7e057e02cae6f89144d0123affected
LinuxLinuxb6e8d4aa1110306378af0f3472a6b85a1f039a16 < 58f664614f8c3d6142ab81ae551e466dc6e092e8affected
LinuxLinuxb6e8d4aa1110306378af0f3472a6b85a1f039a16 < ecf5ee280b702270afb02f61b299d3dfe3ec7730affected
LinuxLinuxb6e8d4aa1110306378af0f3472a6b85a1f039a16 < 1921781ec4a8824bd0c520bf9363e28a880d14ecaffected
LinuxLinuxb6e8d4aa1110306378af0f3472a6b85a1f039a16 < 1cce6ac47f4a2ac1766b8a188dc8c8f6d8df2a53affected
LinuxLinuxb6e8d4aa1110306378af0f3472a6b85a1f039a16 < 6d5c6711a55c35ce09b90705546050408d9d4b61affected
LinuxLinuxb6e8d4aa1110306378af0f3472a6b85a1f039a16 < 50695153d7ddde3b1696dbf0085be0033bf3ddb3affected
LinuxLinux4.8affected
LinuxLinux0 < 4.8unaffected
LinuxLinux5.4.295 <= 5.4.*unaffected
LinuxLinux5.10.239 <= 5.10.*unaffected
LinuxLinux5.15.186 <= 5.15.*unaffected
LinuxLinux6.1.142 <= 6.1.*unaffected
LinuxLinux6.6.95 <= 6.6.*unaffected
LinuxLinux6.12.35 <= 6.12.*unaffected
LinuxLinux6.15.4 <= 6.15.*unaffected
LinuxLinux6.16 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References