In the Linux kernel, the following vulnerability has been resolved:
ring-buffer: Prevent subbuf order change when resizing is disabled
Because ring_buffer_subbuf_order_set() frees buffer pages, we can't allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free (rb_advance_iter()).
Return -EBUSY on resize_disabled, matching ring_buffer_resize() behaviour.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel-livepatch-6.18.48-107.148Upgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel6.18-toolsUpgrade kernel6.18-debuginfoUpgrade perf6.18-debuginfoUpgrade bpftool6.18-debuginfoUpgrade kernel6.18-headersUpgrade python3-perf6.18-debuginfoUpgrade kernel6.18-tools-debuginfoUpgrade kernel6.18Upgrade kernel6.18-debuginfo-common-x86_64Upgrade bpftool6.18Upgrade perf6.18Upgrade microvm-kernel6.18Upgrade kernel6.18-develUpgrade kernel6.18-modules-extra-commonUpgrade python3-perf6.18Upgrade kernel6.18-modules-extraUpgrade kernel6.18-tools-devel | Sep 30, 2026 | Aug 22, 2026 |
| Debian | — | Upgrade linux-6.12Upgrade linux | Aug 26, 2026 | Aug 26, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 15, 2026 | Aug 22, 2026 |
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