CVE-2026-53188RDMA/core: Validate the passed in fops for ib_get_ucaps()
Updated under an hour ago ()
Does this affect you?
It affects Linux and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate the passed in fops for ib_get_ucaps() Sashiko pointed out it is not safe to rely only on the devt because char/block alias so if the user finds a block device with the same dev_t it can masquerade as a ucap cdev fd. Test the f_ops to only accept authentic cdevs.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 61e51682816d395307f78ae06d640089054c28ab before 96b6e98ff12d50ed5817230c6f1188e1150d225d; from 61e51682816d395307f78ae06d640089054c28ab before aa181287ebdcc53ee0ba5c2f8243e2d541ebc19b; 61e51682816d395307f78ae06d640089054c28ab builds before 4a1b1ac2744694a2ecd66a84bdb1445f4ef24bee | CNA record |
linux linux_kernel linux:linux_kernel | from 6.15 before 6.18.36; from 6.19 before 7.0.13; 7.1; 7.1; 7.1; 7.1; 7.1; 7.1; and 1 more ranges | NVD |
References
- https://git.kernel.org/stable/c/96b6e98ff12d50ed5817230c6f1188e1150d225dpatch
- https://git.kernel.org/stable/c/aa181287ebdcc53ee0ba5c2f8243e2d541ebc19bpatch
- https://git.kernel.org/stable/c/4a1b1ac2744694a2ecd66a84bdb1445f4ef24beepatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.