In the Linux kernel, the following vulnerability has been resolved:
cxl/features: Add check for no entries in cxl_feature_info
cxl EDAC calls cxl_feature_info() to get the feature information and if the hardware has no Features support, cxlfs may be passed in as NULL.
[ 51.957498] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 51.965571] #PF: supervisor read access in kernel mode [ 51.971559] #PF: error_code(0x0000) - not-present page [ 51.977542] PGD 17e4f6067 P4D 0 [ 51.981384] Oops: Oops: 0000 [#1] SMP NOPTI [ 51.986300] CPU: 49 UID: 0 PID: 3782 Comm: systemd-udevd Not tainted 6.17.0dj test+ #64 PREEMPT(voluntary) [ 51.997355] Hardware name: <removed> [ 52.009790] RIP: 0010:cxl_feature_info+0xa/0x80 [cxl_core]
Add a check for cxlfs before dereferencing it and return -EOPNOTSUPP if there is no cxlfs created due to no hardware support.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linux-image-oracleUpgrade linux-image-realtimeUpgrade linux-image-gcpUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-oracle-64kUpgrade linux-image-generic-64kUpgrade linux-image-genericUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-aws-6.17Upgrade linux-image-realtime-6.17Upgrade linux-image-raspi-6.17Upgrade linux-image-aws-64kUpgrade linux-image-virtual-6.17Upgrade linux-image-virtualUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-generic-6.17Upgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-azure-6.17Upgrade linux-image-6.17.0-14-genericUpgrade linux-image-oracle-6.17Upgrade linux-image-oem-6.17Upgrade linux-image-generic-64k-6.17Upgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-awsUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-6.17.0-1007-awsUpgrade linux-image-azureUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-gcp-64kUpgrade linux-image-gcp-6.17Upgrade linux-image-raspiUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-aws-64k-6.17 | Feb 13, 2026 | Feb 12, 2026 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub