In the Linux kernel, the following vulnerability has been resolved:
video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()
I got a null-ptr-deref report:
BUG: kernel NULL pointer dereference, address: 0000000000000000 ... RIP: 0010:fb_destroy_modelist+0x38/0x100 ... Call Trace: ufx_usb_probe.cold+0x2b5/0xac1 [smscufx] usb_probe_interface+0x1aa/0x3c0 [usbcore] really_probe+0x167/0x460 ... ret_from_fork+0x1f/0x30
If fb_alloc_cmap() fails in ufx_usb_probe(), fb_destroy_modelist() will be called to destroy modelist in the error handling path. But modelist has not been initialized yet, so it will result in null-ptr-deref.
Initialize modelist before calling fb_alloc_cmap() to fix this bug.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Ubuntu | — | Upgrade linux-aws-fipsUpgrade linux-hwe-5.4Upgrade linux-lowlatencyUpgrade linux-aws-hweUpgrade linuxUpgrade linux-ibm-5.4Upgrade linux-gcp-5.4Upgrade linux-gcp-fipsUpgrade linux-azure-fipsUpgrade linux-oracle-5.4Upgrade linux-ibmUpgrade linux-awsUpgrade linux-gcpUpgrade linux-azure-5.15Upgrade linux-hweUpgrade linux-hwe-5.15Upgrade linux-aws-5.4Upgrade linux-azureUpgrade linux-realtimeUpgrade linux-azure-4.15Upgrade linux-kvmUpgrade linux-gkeUpgrade linux-lowlatency-hwe-5.15Upgrade linux-bluefieldUpgrade linux-oracleUpgrade linux-intel-iotg-5.15Upgrade linux-gcp-4.15Upgrade linux-intel-iotgUpgrade linux-azure-5.4Upgrade linux-fipsUpgrade linux-raspi-5.4Upgrade linux-raspiUpgrade linux-iot | Mar 3, 2025 | Feb 26, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Feb 26, 2025 |
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