In the Linux kernel, the following vulnerability has been resolved:
video: fbdev: s3fb: Check the size of screen before memset_io()
In the function s3fb_set_par(), the value of 'screen_size' is calculated by the user input. If the user provides the improper value, the value of 'screen_size' may larger than 'info->screen_size', which may cause the following bug:
[ 54.083733] BUG: unable to handle page fault for address: ffffc90003000000 [ 54.083742] #PF: supervisor write access in kernel mode [ 54.083744] #PF: error_code(0x0002) - not-present page [ 54.083760] RIP: 0010:memset_orig+0x33/0xb0 [ 54.083782] Call Trace: [ 54.083788] s3fb_set_par+0x1ec6/0x4040 [ 54.083806] fb_set_var+0x604/0xeb0 [ 54.083836] do_fb_ioctl+0x234/0x670
Fix the this by checking the value of 'screen_size' before memset_io().
CVSS Details
- CVSS 3.1 Base Score: 7.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.15.69-37.134Upgrade kernel-livepatch-4.14.291-218.527Upgrade bpftool-debuginfoUpgrade perfUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-livepatch-5.10.144-127.601Upgrade kernel-develUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade perf-debuginfoUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade kernel-tools-debuginfo | Jul 9, 2025 | Jun 18, 2025 |
| Debian | — | Upgrade linux | Jun 20, 2025 | Jun 20, 2025 |
| Dell Powerstore Dsa2025429 | — | Upgrade Dell PowerStoreOS to the latest version | Dec 3, 2025 | Dec 2, 2025 |
| Dell Powerstore Dsa2026039 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Jan 6, 2026 |
| Ubuntu | — | Upgrade linux-aws-5.4Upgrade linux-aws-hweUpgrade linux-raspiUpgrade linux-iotUpgrade linux-hweUpgrade linux-azure-4.15Upgrade linux-azure-fipsUpgrade linux-hwe-5.15Upgrade linux-azureUpgrade linux-oracle-5.15Upgrade linux-aws-fipsUpgrade linux-lowlatencyUpgrade linux-gkeopUpgrade linuxUpgrade linux-azure-5.15Upgrade linux-ibm-5.4Upgrade linux-gcp-5.4Upgrade linux-azure-5.4Upgrade linux-awsUpgrade linux-gcp-4.15Upgrade linux-hwe-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-oracleUpgrade linux-gcpUpgrade linux-raspi-5.4Upgrade linux-gkeUpgrade linux-aws-5.15Upgrade linux-realtimeUpgrade linux-oracle-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-gcp-fipsUpgrade linux-gcp-5.15Upgrade linux-nvidiaUpgrade linux-riscv-5.15Upgrade linux-fipsUpgrade linux-azure-fdeUpgrade linux-kvmUpgrade linux-intel-iotgUpgrade linux-bluefieldUpgrade linux-ibm | Jun 26, 2025 | Jun 18, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jun 18, 2025 |
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